Energy Finite Element Analysis (EFEA) can perform mid- to high-frequency vibration and acoustic simulations for complex structural – acoustic systems. The EFEA code is computationally efficient and easy to use. It is compatible with CAD databases used during product development, and it can be easily integrated within a multi-disciplinary design environment. This unique technology offers a competitive advantage to MES’ customers and streamlines the structural – acoustic simulations with other analyses during the design process.
About Michigan Engineering Services, LLC
Michigan Engineering Services, LLC (MES) was founded in 2002 as a research and development company, specializing in developing commercial software and advanced technology for engineering simulations. MES’ activities span both the defense and the commercial industrial sectors. Through the engineering services component of MES an efficient technology transition is facilitated to its customers.
MES has an established track record in the areas of structural vibrations and acoustics; dynamic simulations due to explosive loads; and in multi-disciplinary design optimization. Customers can find in MES a reliable technical partner that draws experience from both commercial and defense related engineering applications. MES delivers smart engineering solutions in a timely manner.
“The EFEA solver complements the collective capabilities of the HyperWorks partners by adding the opportunity for customers to conduct mid- to-high-frequency vibro-acoustic analysis using finite elements, a capability that was unavailable within the program until now.”
–Nick Vlahopoulos, CTO
Michigan Engineering Services
Key Features & Benefits
The EFEA method uses energy based primary variables instead of pursuing a displacement based solution as the Finite Element Analysis (FEA) method does. This results into significant computational efficiency and in using only a small fraction of elements compared to the FEA.
The EFEA method is similar to the Statistical Energy Analysis (SEA) since it uses vibration and acoustic energy variables. However, the EFEA model retains a direct connection with the physical design through its finite element based model. No modal density information is required in EFEA, this increases accuracy. Structural damping and acoustic treatment can be specified on the physical part of the model where it is actually applied.
The finite element based visualization of the results offered by EFEA fits well in a design process for developing efficient noise mitigation strategies.
Industry Applications
EFEA has been validated and applied in naval, aircraft and automotive fields.
Product Interfaces
EFEA has interfaces with Altair's HyperGraph and HyperMesh.
Complementary Solutions
AlphaCell
Based on an intuitive graphical interface, AlphaCell is a complete and accurate TMM/FTMM solution for predicting the vibro-acoustic response of multi-layer trims.
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AVL EXCITE™ Acoustics
AVL EXCITE™ Acoustics is a tool for the calculation of sound radiation in free field using the Wave Based Technique (WBT).
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HyperMesh
High-performance finite element pre-processor to prepare largest models, starting from import of CAD geometry to exporting an analysis run for various disciplines.
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OptiStruct
Industry proven, modern structural analysis solver for linear and non-linear structural problems under static and dynamic loadings. The market-leading solution for structural design and optimization.
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