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Rapidly Exploring Electric Vehicle Architectures with C123
To overcome the challenges of developing a vehicle architecture shared across a range of electrical vehicles, National Electric Vehicle Sweden (NEVS) leveraged Altair’s unique three stage concept development process, C123 using a combination of optimization technologies, design processes and engineering expertise.

Minimising Interior Noise in Electric Vehicles
National Electric Vehicle Sweden (NEVS) leverages use of the Altair Squeak and Rattle Director in identifying and minimising risks of interior noise in electric vehicles.

FEKO Lua Script: ISAR Image Processing
The script computes and displays an inverse synthetic aperture radar (ISAR) image from backscattered radar cross section (RCS) data over frequency and angle. Windowing functions, resampling and extracting the local maxima positions to file are supported. The script requires a far field RCS request or far field RCS data imported from a file containing far field data (a .ffe file). Data imported from a .ffe file must be added manually to a 3D view.

The Design Revolution Offered by Combining Additive Manufacturing with Simulation Driven Design
Topology optimization is a computer based calculation procedure which can design mechanically stressed component structures in such a way that the highest possible rigidity can be achieved with minimal material usage. Only those parts of a component which are essential for the required flux of force and necessary stability are generated. This results in complex structures which can only be built partially or not at all using conventional production processes. At this point the advantages of additive manufacturing come into focus.

Simulation Driven Design for Efficient Electric Machines - What's New in FluxMotor 2018
The electric motor design process can be long and tedious. Modern design tools enables designers to quickly evaluate and compare machine techinical-economic potential. Discover how FluxMotor can radically change the way machines are designed, through each stage and be able to use standard or customized parts, add windings easily and quickly attribute materials before computing its performance.

Flux Webinar: Accelerate your Design Process with Flux - Dealing with Complex 3D CAD Models
Flux is now fully part of HyperWorks and thanks to our flexible HyperWorks Units, users are now able to access even more tools that will help you to save time in your designs and enable powerful simulations. Flux embeds its own pre-preprocessing tools but designers sometimes need to deal with complex 3D geometries generated by their CAD team.

Design Optimization with Feko and HyperStudy
See how easy it is to use the Optimization SDK in other applications.

Design of Interior Permanent Magnet Machines for Traction Application using Flux Modules
Altair’s low-frequency electromagnetic and thermal software, Flux™, offers a complete range of modeling tools able to take into account model specifications and streamline the design process.

Capitalizing on 36 years of innovation in the global context of design optimization and time-to-market reduction, our solution suite is built to assist you. The ATCx Flux™ seminar is an excellent opportunity to discover the latest developments in this best-in-class software. Industry experts will present the latest capabilities and enhancements of Flux™ 2018 - providing a comprehensive view of methodology used for the analysis, design and optimization of modern applications.

Presentation recorded in Troy, MI during ATCx Flux 2018 on March 14, 2018.

Design of an Axial Flux Machine: Simulation and Challenges
Altair’s low-frequency electromagnetic and thermal software, Flux™, offers a complete range of modeling tools able to take into account model specifications and streamline the design process.

Capitalizing on 36 years of innovation in the global context of design optimization and time-to-market reduction, our solution suite is built to assist you. The ATCx Flux™ seminar is an excellent opportunity to discover the latest developments in this best-in-class software. Industry experts will present the latest capabilities and enhancements of Flux™ 2018 - providing a comprehensive view of methodology used for the analysis, design and optimization of modern applications.

Presentation recorded in Troy, MI during ATCx Flux 2018 on March 14, 2018.


Modeling the Induction Heating of Carbon Fiber Reinforced Thermoplastic
Altair’s low-frequency electromagnetic and thermal software, Flux™, offers a complete range of modeling tools able to take into account model specifications and streamline the design process.

Capitalizing on 36 years of innovation in the global context of design optimization and time-to-market reduction, our solution suite is built to assist you. The ATCx Flux™ seminar is an excellent opportunity to discover the latest developments in this best-in-class software. Industry experts will present the latest capabilities and enhancements of Flux™ 2018 - providing a comprehensive view of methodology used for the analysis, design and optimization of modern applications.

Presentation recorded in Troy, MI during ATCx Flux 2018 on March 14, 2018.

Coupling Flux with OptiStruct for Acoustic Analysis
Altair’s low-frequency electromagnetic and thermal software, Flux™, offers a complete range of modeling tools able to take into account model specifications and streamline the design process.

Capitalizing on 36 years of innovation in the global context of design optimization and time-to-market reduction, our solution suite is built to assist you. The ATCx Flux™ seminar is an excellent opportunity to discover the latest developments in this best-in-class software. Industry experts will present the latest capabilities and enhancements of Flux™ 2018 - providing a comprehensive view of methodology used for the analysis, design and optimization of modern applications.

Presentation recorded in Troy, MI during ATCx Flux 2018 on March 14, 2018.

Efficient Control of AC Machines using Model-Based Development
This webinar, hosted by IEEE, focuses on Motor Control using Embed

Use of Composites Materials in Architecture
Atanas Zhelev and Mariya Korolova (Digital Architects - Vienna, Austria) and Daisuke Hirose (Archicomplex - Tokyo, Japan) made a design proposal for the Architecture competition for a bid at the Varna Library in Bulgaria. Their proposal features a composite of birch wood and carbon fiber laminate which got structurally designed with ESAComp. This video gives a short introduction to the project.

Sella Chair - Form Follows Performance
Short video describing the design and production of a design chair by Architect Atanas Zhelev (Digital Architects, Vienna, Austria). This design piece demonstrates the feasibility of his Active Grid Monocoque System (AGM) he uses in his work for highly curved, wide spun architecture. The analysis has been done with Altair products, foremost ESAComp and OptiStruct.

The Digitalization of Biomimicry Design from the Ocean
Sebastian Möller, Projektleiter at ELiSE Alfred Wegener Institut, presents at Converge 2017 in Essen, Germany.

A Tooling Revolution for Plastic Injection Molding
Stefan de Groot, Technologist Additive Manufacturing at PROTIQ, presents at Converge 2017 in Essen, Germany

Simulation Driven Design in the Cloud
Chad Zamler, Marketing Director of solidThinking, presents at Converge 2017 in Essen, Germany.

Bend-It – Rethinking Customized Orthopaedic Devices Using Additive Manufacturing
Dustin Ahrendt and Felix Schmitt from Technische Universitat Dresden present at Converge 2017 in Essen, Germany.

Design Research Experiences at ZH CoDe
Filippo Nasetti, Senior Associate at Zaha Hadid, presents at Converge 2017 in Essen, Germany.

Master Class: How to Design for Additive Manufacturing
This Master Class held at Converge 2017 in Essen Germany, presents the making of the 3iPRINT Project, which was a joint effort from csi entwicklungstechnik, APWORKS and EOS.

Design for the Future: 5 Trends You Need to Know
Christine Outram, Chief Product Officer at Veritas Prep, presents at Converge 2017 in Los Angeles, California.

Build a Rocket
Tim Morton, Director of Industrial Design at Newell Brands, presents at Converge 2017 in Los Angeles, California.

Taming Smart Materials to Behave
Doris Sung, Founder of DOSU Studio Architecture, presents at Converge 2017 in Los Angeles, California.

Additive Manufacturing Design
Jason Lopes, Production Development Engineer at Carbon, presents at Converge 2017 in Los Angeles, California.

Towards Real-time Topology Optimization
Hod Lipson, Professor of Engineering and Data Science at Columbia University, presents at Converge 2017 in Los Angeles, California.

High Performance, Dynamism and Autonomy for Humans
Greg Lynn, Principal at FORM, presents at Converge 2017 in Los Angeles, California.

Mega Data, Mega Structure, Mega City
Michael Peng, Technical Director and Senior Associate at Gensler, presents at Converge 2017 in Los Angeles, California.

Development of a New Lightweight Aluminum Profile for a Glass Balustrade
The design of architectural components such as a balustrade can be challenging, since the design does not only have to look good, it also has to meet several safety requirements and standards. In addition, all designs have to be developed within the shortest time possible. To meet these challenges the engineers, architects and designers at Faraone are always looking for solutions that can reduce their design and testing cycles.

What Can We Learn from Nature for Modern Architecture Structures?
Eric Rusinol, an Architect from The Sagrada Família Foundation, gives us some insight into the project to finish Antoni Gaudí's iconic Cathedral in Barcelona, touching on the teams use of optimization and concept generations technologies from Altair.

Multi-physics Electric Motor Optimization for Noise Reduction
In an electric machine, the torque is generated by electromagnetic forces which also create some parasitic vibrations of the stator. These vibrations excite the mechanical structure on which the motor is fixed and generate sound. When designing the electric machine, this aspect has to be taken into account from the start since it depends on the harmonic content of the currents that feed the machine, on the shapes of the rotor and stator, and on the interaction of the electric frequencies with the natural mechanical modes of the structure.
To simulate this phenomenon, a coupling between electromagnetic calculations and vibration analysis has to be set-up. Some optimization procedure can also be added in order to reduce the noise.
In what follows, it is shown how Altair HyperWorks suite; specifically FluxTM, OptiStruct®, HyperMesh® and HyperStudy® products have been successfully used to perform a multi-physics optimization for noise reduction in a fuel pump permanent magnet motor.

Thermal Analysis of Electrical Equipment A review and comparison of different methods
Nowadays, it is more and more difficult to design electro-technique devices without having a look at thermal stress. In more and more applications (more electric vehicles, more electric aircrafts, …) designers need to reduce weight, cost, increase efficiency, and keep the same security factor. One possibility is to increase current for the same device, needing to check how to draw away the heat. This is why the classical approximations need to be cross checked with complementary analysis. These new tools have to be rapid and accurate in order to run parametric and even optimization analysis. There is also a need for fast model in order to check robustness versus driving cycles. The goal in this article is to review rapidly the different methods available, depending on the accuracy required and the solving speed.
The method includes equivalent thermal circuits, Finite elements methods and CFD analysis.


How to Efficiently Design Power Transformers
Since approximately 40% of grid losses are dissipated from power transformers, there is now a great need to analyse these important components of the electrical network. Altair Flux 2D / 3D plays a key role in those investigations.

Altair and Ziegler Instruments Combine Experience and Technologies to Identify and Eliminate Squeak and Rattle Issues
Altair has partnered with Ziegler-Instruments to enhance its Squeak and Rattle Director (SnRD), making it the most advanced and comprehensive solution on the market to predict and eradicate squeak and rattle phenomena in vehicles, aircraft and other products sensitive to Noise, Vibration and Harshness (NVH). The addition of Ziegler-Instruments’ PEM material database gives Altair’s SnRD clients access to the results for over 11,000 individual stick and slip phenomena for different materials pairs.

In this video, Patrick Schimmelbauer and Jens Herting of Ziegler Instruments give an overview of the partnership and what it means to companies needing to address squeak and rattle issues.

ESAComp-HyperWorks Interface Recommended Workflows
The use of the ESAComp-HyperWorks interface for enhanced post-processing of laminated composite structures is introduced.

ESAComp for Composite Pressure Vessels
ESAComp composite pressure vessel (CPV) analysis provides fast and accurate analysis of CPVs using shell or solid elements. The fiber paths computed by a filament winding simulation software are used as the basis of the analysis.

No more Gone with the Wind – Pedestrian Comfort Improvements on Quinta Torre with AcuSolve Computational Fluid Dynamics
Officially known as the Caleido project, the Fifth Tower in Madrid is owned by Inmobiliaria Espacio, a company that, among other services, deals with infrastructure and construction for all types of buildings.



Developing More Accurate and Reliable Vehicle Component Models in Less Time with Software Automation at Changan Automobile
Pre-processing vehicle models is time consuming and complex, with many opportunities for error if done manually. Altair build a custom software solution to automate most of the pre-processing tasks.

Altair Weld Certification Director Datasheet
Altair's Weld Certification Director (WCD) is a combination of a base software with customer specific additions and integrated services that allows engineers to accelerate the time taken to identify and analyze the performance of weld lines against mechanical requirements.

Pioneering Real Wireless Power Delivery™ at Ossia Inc.: FEKO in the Simulation Process
Ossia’s patented wireless power Cota® technology is delivered much like Wi-Fi, is inherently safe, and provides real wireless power through the air and over a distance, even while the
device is in motion. Using FEKO® for simulations to demonstrate that the SAR limit for COTA technology use for wireless power charging is within the FCC mandated limit of 1.6 watts per kilogram.

Real-Time Foundation Monitoring for Omnifor
In the western part of the Netherlands, the soil has insufficient bearing capacity to allow for the construction of buildings and houses. To overcome this issue, buildings in this area have been built on timber pile foundations. These foundations have to be fully submerged in water to avoid pile deterioration from rotting and fungi. Property owners wanted a way to monitor the structural condition of their timber pile foundations. Omnifor teamed up with Altair SmartWorks and created a platform for structural health monitoring to track any signs of deterioration or shifting of the foundation. Data is collected at a specific rate to track the evolution of the deterioration along with an estimate of how long the property owner has until repairs are necessary.


Altair Weight Analytics Datasheet
Altair's Weight Analytics (WA) solution manages the entire Weight and Balance (W&B) process empowering engineering and management teams to control and ensure W&B attributes meet program requirements. Deployed as a common weight management tool across the enterprise, WA enables faster and more accurate decision-making with on-demand access to visualize, analyze and predict W&B at any point in time during the entire Product Lifecycle (PLC).

Altair Geomechanics Director Datasheet
Altair's Geomechanics Director (GeoD) allows engineers and scientists, especially in the Rock Mechanics and Geology groups at Oil and Gas companies, to build finite element models from subsurface geology quickly and efficiently.

Altair Squeak and Rattle Director Datasheet
Altair's Squeak and Rattle Director (SnRD) is a novel set of software automations to rapidly identify and analyze design alternatives to eliminate the root causes of squeak and rattle (S&R) in assemblies. Tailored to be deeply integrated within your environment and processes, SnRD offers a complete set of capabilities to streamline the entire S&R simulation workflow process from model creation to results visualization.

The Three-Click Workflow of nanoFluidX, HyperMesh, and SimLab
The webinar will begin by presenting FluiDyna GmbH and by giving a short introduction to the nanoFluidX (nFX) code. After that the attendees will get a more detailed description of the work flow, emphasizing the ultra-simple pre-processing capabilities of the HyperMesh 14.0.110 and upcoming SimLab 14.2, which allow particle generation with literally three clicks per element. Some details about the solver will also be presented, particularly pointing out the speed up the customer potentially gains in turn-around time for oiling simulations by using nFX on GPU’s. We shall also present the new ParaView 5.0.1 with special SPH features, as well as FieldView version (which should show up by the webinar). Finally, summary and licensing details will be provided for nFX.

Originating a safe Fun Utility Vehicle (FUV)
The challenge in the development of Arcimoto’s SRK Generation 8; an all-electric, multi-purpose/utility commuter vehicle, included creation of an optimized platform that offers
3-wheeled stability, a space frame enclosure for protection, and a rear swing arm that handles the load requirements and also follows the visual design of the vehicle. HyperMesh® provided an environment for rapid model generation allowing Arcimoto to answer queries by helping them perform the analysis in OptiStruct® in an easy, time efficient manner. Using RADIOSS® for the physics helped them achieve repeatable and accurate results, reduce simulation cycle times and allow for evaluating multiple design scenarios thus enabling better decisions.


Altair ultraFluidX Datasheet
Altair ultraFluidX is a simulation tool for ultra-fast prediction of the aerodynamic properties of passenger and heavy-duty vehicles as well as for motorsport applications. Its cutting-edge technology is optimized for GPUs to deliver unbeatable performance and to allow for overnight simulations even of complex cases on a single server.


Using HyperWorks® to Optimize Structural Strength for Argon 18 High-performance Bikes
Argon 18 recently partnered with the ÉTS Research Chair on Engineering of Processing, Materials and Structures for Additive Manufacturing to manufacture a new track bike for Lasse Norman Hansen, one of the athletes competing for the Danish team in track cycling at the 2016 Rio Olympic Games. Their aim was to develop a bike that was stiffer, highly integrated, more aerodynamic, providing greater efficiency. An important aspect of the project was the development of a new aluminum stem to be used by Mr. Hansen in the Flying Lap event which is achieved by the fastest lap from the moving start. Altair solutions included OptiStruct for structural analysis, AcuSolve® for CFD, and Virtual Wind Tunnel.

OptiStruct® Makes Life-form Inspired Table a Reality for IL Hoon Roh
Inspired by zooplankton Radiolaria, artist and architect IL Hoon Roh began creating series of objects known as “Radiolara Experiment” which, through extensive experimentation and collaboration with Altair, ultimately led to the creation of the sophisticated Table Ex-08.

Sujan CooperStandard Achieves Lightweighting and Performance Targets with Altair
Sujan CooperStandard manufactures (anti-vibration) NVH products for leading automotive companies. Currently, the automotive industry is under extreme pressure because of environmental norms and has to adhere to stringent government policies related to pollution control and one of the simplest ways to address these is to optimize designs and reduce weight of products and components. They began using Altair HyperWorks on the on the recommendation of their joint venture partner CooperStandard. The team decided to improvise design of their Torsion Vibration Damper using Altair solutions like solidThinking Inspire to optimize designs of the brackets and OptiStruct for structural integrity of the designs. Altair solutions have helped Sujan CooperStandard get their product designs right the first time and consistently meet their time, cost and quality targets.

Realizing the Digital Twin
This webinar will highlight the benefits of integrating Altair’s HyperWorks and Carriots software platforms for realizing Digital Twins.These products combined offer a tight integration between the essential parts of a digital twin process: device management, data collection, analytics and simulation-driven design. A case study on condition monitoring and predictive maintenance will be shown to demonstrate the process.

Webinar: Structural and Thermal Coupling with Electromagnetic Systems
Electromagnetic phenomenon may induce undesired effects such as heat or vibrations. To predict and correct them by simulation, it is necessary to couple all phenomenon. Altair HyperWorks software suite is a perfect solution for this and in this webinar, two use cases will be demonstrated, where Flux is coupled with OptiStruct and AcuSolve.

Innovative Drone Propulsion Design using Model-Based Development
To assist Kappa Electronics’ customer with controlling the motor for a new drone design, Altair’s solidThinking Embed was used for high speed simulation of motor electronics and control dynamics to develop a novel method of sensorless field-oriented control.

Design of Permanent Magnet Axial Flux High Power Wind Turbines Generators (MW range)
Design of Permanent Magnet Axial Flux High Power Wind Turbines Generators (MW range)

Hydrogenerators Finite Element Modeling with Flux
Hydrogenerators Finite Element Modeling with FluxTM
This article mainly focusses on the electrical engineering aspects of the design. Hydrogenerators parameters extraction and dynamical behavior prediction can be easily determined with a two-dimensional finite element modeling.

Addressing Design Development Challenges Through Simulation Driven Platform
Automotive suppliers are facing many challenges in having in-house simulation capabilities compared to that of OEM’s. One of the ways to overcome these challenges is to invest in simulation technologies that require an affordable initial investment, the ownership cost of which is low, the codes are reliable & proven, and the suite of tools provide suppliers access to a broad range of solvers (a true multi-physics environment) helping them pick and choose the solvers as per their simulation requirements. In the early stage of in-house simulation implementation at Endurance Technologies, HyperWorks was being adopted primarily for pre and post processing due to its extraordinary FE modeling solutions. With constant support, Altair team has helped Endurance in exploring and implementing various HyperWorks solvers at Endurance Technologies.

Modelling Insulating Parts in MV HV Equipment with Flux
Modelling Insulating Parts in MV/HV Equipment enables to
- To predict and avoid dielectric breakdown
- To compute and minimize electrical stress
HVDC lines Lightning strikes
- To decrease the oversizing


Altair Aerospace: Bird Strike and Other Nonlinear Transient Analyses
This webinar covers bird strike analysis on a wing, starting out with model setup, going over the impactor management and ending in the analysis of the results. Another topic to be discussed is the forming simulation of a composite rib and result mapping.

Key Success Factors to Realize Your Internet of Things Vision
Listen to our guest speaker, Forrester Principal Analyst Martha Bennett, as she discusses insights and researched on IoT.

Altair Aerospace: Design and Optimization of a Radome
This 25-minute webinar covers the material characterization and optimization of a radar dome (radome) build out of carbon and fiberglass. Also to be discussed is the design and optimization of a radar antenna and the simulation of a radar integrated behind the radome and wing structure.

Smart City with Pozuelo de Alarcon
The citizens of Pozuelo de Alarcón in Spain wanted a cleaner and more efficient city. The goals were to protect the environment, decrease energy consumption, reduce CO2 emissions, and control expenses.The city council used SmartWorks platform to realize its digital transformation.

Altair Aerospace: Fail-safe and Multiphysics Optimization
This webinar covers the complete fail-safe optimization process of a wing rib starting with the search of a new and more efficient design to the calculation of optimum dimensions. The replacement of a metallic fitting by an organic 3D printed version, while increasing performances and decreasing mass reduction is discussed as well. HyperStudy has also been used to perform multi-disciplinary studies throughout the process.

Webinar: Applications for Thermal and Fluid Coupling
Altair’s AcuSolve CFD solver is capable of simulating complex multiphysics phenomenon including Heat Transfer-CFD coupling. In this webinar, two use cases are presented, using two very different calculation approaches.



Implementing your IoT Strategy
This webinar will showcase how to take advantage of Carriots™ end-to-end Internet of Things (IoT) platform designed for today’s industry needs and tomorrow’s innovations. You will learn about this smart Platform as a Service (PaaS) designed for machine to machine (M2M) and digital twin projects.

Webinar: HyperWorks for FSI Simulations
Altair’s HyperWorks software suite offers a wide variety of solvers able to simulate complex physical phenomenon, including multiphysics. Therefore, complex FSI applications can be solved, such as ditching or aeroelasticity, as will be shown in the two use cases presented in this webinar.

OptiStruct for Structural Analysis: Not Just for Optimizations Anymore
Reprint of Engineering.com article on OptiStruct as a structural analysis tool with built-in optimization capabilities

The Digital Twin Gateway: Simulation in the age of IoT and industry4.0
The data collected from IoT systems creates an opportunity for engineers to improve their systems and designs.

IoT development platforms, such as Altair’s Carriots, help engineers onboard these systems and designs into an IoT ecosystem.

In this webinar and product demo, you will learn:

IoT use cases from various industries
Data analytics that improve how you and your customers interact with your products
Key Carriots features to connect your devices and systems to the IoT

Altair Aerospace: Design a Flap Mechanism with Multibody Dynamics
This short webinar will discuss coupling of aerodynamics loading, structures vibration, mechanisms deployment and hydraulics actuation in the simulation of a high lift device. This session also includes the simulation of structure loads and actuation efficiency during flight maneuvers. A fatigue analysis ensures the longevity of the new design.

Designing Smart Connected Products and Wireless Networks for IoT
This webinar will explain and show through real use cases how Altair HyperWorks simulation platform and solidThinking design software solutions are helping companies to design and optimize the connectivity of innovative products going from small devices, through connected vehicles, and to wireless sensor networks for cases like industrial applications.

Better Indoor Climate thanks to Simulation and Optimization
Kampmann GmbH is an internationally leading specialist for heating, cooling, air-conditioning and integrated building automation. Within their virtual development process they are using the Altair HyperWorks® software suite, in particular AcuSolve®, the CFD solver; OptiStruct®, the suite's FE-solver and an optimization tool; and HyperMesh® for modeling and meshing tasks. For plant control design, Kampmann is currently considering solidThinking Activate®, a mapping software for control systems. Thanks to simulation, Kampmann engineers are now able to answer questions regarding the internal processes of the system, which are difficult, if not impossible, to study through physical testing.

Analysis of Grounding Performances of a Car Body Using FEM Shell Elements
In the automotive domain, the EMC phenomenon of the current return occurs over a wide frequency band due to the fact that the paths followed by the current are very different between the lowest frequencies (a few Hz) and medium frequencies(hundreds of kHz).

Checking Remanence Issues with New Hysteresis Model
Remanence is what is left when all current is removed, and there is still some flux density left in the iron core. This is often the case with a close path for flux density, especially in U or E shape devices. To get rid of this effect, it is sometimes useful to add a so-called remanent airgap. This paper explains what we have incorporated into Flux to model this effect due to hysteresis.

Cogging Torque Computation and Mesh for Non-radial Electrical Motors in Flux®
All electrical motor designers know that the computation of cogging torque is a tricky task, particularly in 3D. Indeed, the amplitude of this variable is almost the same as numerical noise. In most cases, conventional mesh methodology is not sufficient and specific methodology must be used. At CEDRAT, thanks to its experience, the application team has developed methodologies to successfully compute
cogging torque in most cases. This article presents a specific mesh methodology to compute cogging torque for 3D non-radial electrical motors.


Cogging Torque Computation and Meshing for Radial Electrical Motors in Flux®
All electrical motor designers know that the computation of cogging torque is a tricky task in 3D. Indeed, the amplitude of this quantity is almost the same as the numerical noise. In most cases, a classical meshing methodology is not sufficient and specific methodology must be used. At CEDRAT, the application team, thanks to its experience has developed methodologies to successfully compute cogging torque in most of cases. This article presents a specific meshing methodology to compute cogging torque for 2D and 3D radial electrical machine. It begins with some general recommendation concerning the definition of the geometry in order to facilitate the meshing operation. Then, it presents the specific meshing methodology applied to a 2D SPM motor and to a 3D IPM motor.

Comparative Study of Concentrated and Distributed Winding Using Flux®
The paper presents a comparative study of 3-phase permanent-magnet (PM) synchronous machines (PMSM) with concentrated and distributed windings. The purpose of this study is to identify the machine that gives the better electromagnetic performance (torque, efficiency, back electromotive force…). Two PMSM with concentrated and distributed windings having identical output power, stator and rotor outer diameter, airgap, axial length, are designed. Machine performance of the two machines is compared using finite element analysis (Flux 2D).

Eccentricities Faults in a Rotating Machine Analyzed with Flux®
In the present energy efficiency context of electrical machines, diagnosis of rotating machines is increasingly studied. Designers seek to include the on-line, non-invasive diagnosis and typical signatures of the rotating machines faults in the stator winding currents, torque, leakage magnetic field…etc. Among the rotating machine’s faults, 7 to 10% are located in the rotor and some of these faults are eccentricities. These faults generate electromagnetic torque oscillations: electromagnetic forces acting on the stator, particularly the stator winding, which can accelerate wear of its insulation. Friction between the stator and the rotor is not excluded; this can also have an adverse effect on the bearing.
In the literature we often find three types of eccentricities: static, dynamic and mixed. Our Flux 2D/3D/Skew finite element solution can be of considerable help to predict the typical signatures of eccentricities faults and the influence of these defects on the electromagnetic and vibro-acoustic
performances of these machines, a very differentiating feature of the software. The purpose of this article is to show the feasibility of the different eccentricities with Flux 2D/3D/Skew thanks to the
possibilities offered by mechanical sets.


Eccentricities Faults Magnetic Signature of an Induction Machine Determined with Flux®
In the literature we can find two approaches to make diagnosis: Model approach - a specific method for automation engineers. Depending on the mechanism adopted, we can distinguish three branches in this method: monitoring by observers, by analytical redundancy and by parametric estimation. Signal approach - this approach is based on measurable signals data, such as current, torque, stray flux, noise and vibration, temperature. The principle of this method is to look for frequencies unique to the healthy or fault operation. Faults in electrical
rotating machines can induce other phenomena such as noise and vibrations and possibly other faults like friction between the stator and the rotor or accelerated wear of insulations.


FE Steady State Thermal Analysis of Squirrel Cage Induction Motors with Flux®
The thermal analysis of electrical machines and the related fluid dynamic computation, tasks associated with mechanical engineering disciplines, seem to interest electrical engineers less than electromagnetic analysis. But, with increasing requirements to fully exploit new designs and materials, it has more or less become compulsory to analyze the thermal behavior of electrical machines, to the same degree as electromagnetic design.

Finite Elements Method Modeling of Contactless Energy Transfer Systems
Contactless energy transfer (CET) systems are used in many industrial sectors. These include conveyors, trolleys, storage and retrieval units, baggage handling, battery charging stations, mobile phones and medical implants. The energy transfer model is quite similar to a conventional transformer, except for the weak coupling between the primary and secondary windings and partial or non-existent ferromagnetic closing paths. Inductive coupling is commonly used in a range from a few mW to a few hundred kW.



Induction Heating and Forced Cooling Analysis with Flux®
Principle of induction heating and forced cooling (shower): induction heating is the process of heating an electrically conducting object without contact. The flowing of the current through the coil (see Fig.1) generates an alternating magnetic field. This field induces current in the electric conductor (eddy current). The repartition of eddy current depends on the shape of the electric conductor, the frequency, and physical properties of the material used in the electric
conductor. In addition to this, the high frequency used in induction heating applications gives rise to a phenomenon called skin effect: all the current is concentrated only on the boundaries.


Regulate Current with User Subroutine Using Groovy Language in Flux®
For Switched Reluctance Motor, a specific command of current is often used with a chopper in order to decrease the current
ripple or hysteresis band. We propose to see in this example (see Figure 1) how to implement such a command in Flux using
groovy language.

Study of Mounted Surface Permanent Magnet Synchronous Machine Using Flux® Skew
Requirements: rotating electrical machine designers want high-reliability, minimum power losses, maximum power, maximum torque and low mechanical resonance vibration and noise. To meet the needs of electrical machine designers, CEDRAT started developing tools that take Skew into account in 2003. Several improvements have been made to this tool. Skew is usually accounted for by sub-dividing the active length of the machine into several 2D slices. In the latest Skew version of Flux the post processing is directly a full 3D post-processing.

Taking Demagnetization into Account in Permanent Magnets Using Flux®
Materials can be classified according to their magnetic property into two main categories:
Soft magnetic materials: which exhibit magnetic properties with the presence of external excitation. Hard magnetic materials: exhibit magnetic properties in the absence of magnetic excitation. Permanent magnets are part of this family.


Tunnel Magnetoresistance (TMR) Angle Sensor Simulation Results
The article presents the main results of magnetostatic 3D simulation using CEDRAT Flux software especially for new TMR angle sensor applications. Such magnetic sensors are deployed today in automotive electronics, as well as in many new industrial, consumer-product, medical, avionics, defence and other applications. Under Flux 3D, several effects of the influence of magnet geometry parameters and mechanical tolerances of sensor positioning were investigated, such as airgaps and tilts effects. The results include optimum solutions useful for TMR, as well as for a wide range of other angle sensor types and applications.

Using CEDRAT’s Tool to Review Thermal Solutions
Nowadays, it is more and more difficult to design electrotechnique devices without considering thermal stress. In more and more applications (electric vehicles, electric aircraft, etc.) there is a need to reduce weight and cost, increase efficiency, whilst maintaining security. One possibility is to increase current for the same device, and therefore how to draw away the heat. This is why conventional approximations
need to be cross-checked with new tools. These new tools have to be quick and precise in order to run parametric and even optimisation analyses. Of course, thermal analysis is already available in the Flux suite for induction heating, induction hardening, forging, etc. Dedicated applications have been created to couple magnetic AC steady state to thermal transient analysis, for instance. What is new is easier
and more effective coupling any type of magnetic application to thermal analysis. This article reviews what thermal analysis is, when the different tools were created, and looks at the latest advances in thermal analysis.



Altair Aerospace: FE Model Setup and Validation
This webinar will cover a brief overview of all simulations done on an Altair benchmark airplane wing. All steps from CAD to CAE are discussed, starting with the generation of the geometry, including midsurface generation to meshing and mapping CFD results. The presentation concludes with post-processing and automated report generation.

Evolution and Usage of EM Simulation in the Naval Industry
Altair Feko’s broad solver technology offering is well suited to the efficient and accurate simulation of electrically very large structures.

In this webinar we will offer several use cases of Naval related electromagnetic simulations using Feko.

Besides more general problems like antenna placement, RCS or radiation hazard, we will also discuss special topics like ship magnetization and low frequency shielding of submarine hulls.

MotionSolve for Heavy Industry
MotionSolve for Heavy Industry.
Optimize Machinery System Performance


MotionSolve for Automotive
MotionSolve for Automotive
Optimize Automotive System Performance


MotionSolve for Trucks and Busses - Analyze and Optimize Truck System Performance
MotionSolve - Altair's multi-body solution is an integrated solution to analyze and improve mechanical system performance. In the truck and bus industries, MotionSolve is used to assess system durability, evaluate and improve new suspension systems, optimize the ride and handling characteristics of vehicles, evaluate and optimize subsystem performance and validate mechatronics components.

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Squeak and Rattle Prevention - Why You Should Not Wait for Your First Prototype
This presentation will discuss how the industry challenges for S&R can be answered using NVH best practices and turn cost avoidance to cost reduction. Altair and ZIEGLER will discuss how to successfully integrate CPA, FE simulation and optimization in the heart of the virtual engineering phases, using the right technology and processes.

This presentation by Patrick Schimmelbauer, Managing Director at Ziegler was recorded at the 2017 Americas ATC East in Detroit, MI.

OptiStruct for Nonlinear Analysis: Comprehensive, Fast and Accurate Solutions, Modern Solver Architecture
This webinar will show you some of the nonlinear capabilities available in OptiStruct with a few use cases at a high level. The use cases include but are not limited to car body durability, powertrain durability, aerospace etc.

ESAComp Complementing HyperWorks Composites Simulation
When faced with the challenges during the conceptual and preliminary design of composites structures, ESAComp is specialized industry-proven software that can make all the difference in achieving better designs faster.

MotionSolve for General Machinery
MotionSolve for General Machinery. Understand and Optimize System Performance

OptiStruct: Enabling Simulation Driven Innovation
Watch this on-demand webinar to get a complete overview of the comprehensive, unique and innovative functionality of OptiStruct for structural analysis and optimization. Learn why OptiStruct is quickly becoming widely adopted as the structural solver of choice.

Surrogate Models for Antenna Placement on Large Platforms
The RF Engineering group at the Institute of High Performance Computing (IHPC), develops advanced computational electromagnetics and multiphysics algorithms and tools, leveraging vast know-how in EMC for a wide range of applications. Typical challenges include electrically-large and multi-scale EM problems such as antenna placement on large platforms, and mutiphysics problems such as the electrical –thermal–mechanical analysis of composite materials. In a project that dealt with electrically large platforms, an efficient modelling tool was required to identify optimum antenna positions and minimize interference between various antennas. FEKO was used during the development process, helping to determine the design parameters of the surrogate models using its powerful optimization function.

Speeding up Altair OptiStruct* Simulations with the Intel® SSD Data Center Family for PCIe*
Altair OptiStruct* provides engineers and designers with a unified solution from concept to final design by leveraging advanced analysis capabilities and novel, optimization-driven simulation. In this process, the simulation time for one optimization iteration is a critical consideration, since it affects the computational speed and scalability of the entire design process.


Holistic System Performance Improvement
Raising efficiency by changing design paradigms for electric machines. This presentation was made at the CWIEME 2017 exhibition in Berlin, Germany, during June 2017

More Efficient and Economic Injection Mold Tools thanks to Topology Optimization, CFD Simulation and 3D Printing
Toolmaking is usually characterized by cost-intensive, custom made, single-unit production. To create innovative tools, the industry increasingly relies on new manufacturing methods such as 3D printing. To meet market demand, PROTIQ GmbH, a spinoff from Phoenix Contact needed to increase productivity through more efficient injection mold tools. The Altair solution included development of optimized tools using simulation, optimization and additive manufacturing (model setup with HyperMesh, topology optimization and FE analysis with OptiStruct, CFD analysis with AcuSolve and refinement with solidThinking Evolve. The benefits included increased productivity due to shorter production cycles, weight reduction of 75%, shortened development time and production costs reduced by 25%.

Efficient Injection Molding Tools through Optimization, CFD Simulation and 3D Printing
The company PROTIQ (www.protiq.com) worked with Altair and created a highly efficient molding tool. Optimization with OptiStruct was used to find the optimal design to guarantee the maximum tolerances of the generated products. The cooling process of the product was simulated with CFD (AcuSolve). As an overall result, the cycle time could be significantly decreased and the part quality also improved due to lower thermal deformations.

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