Efficient calculations
The Energy-Based Finite Element Method as well as the Energy-Based Boundary Element Method address problems that require too much computational power due to their structure and size in conventional FEM and BEM.
As a full-service provider, we conduct both EFEM and EBEM analyses for you. We accompany you during the conception, calculate results and derive recommendations for action for you.
Why EBEM and EFEM?
Where energy-based methods come in
Conventional FEM and BEM require a lot of computing power for complex systems. In the high frequency range, they also require very fine meshes to accurately represent the spatial and temporal changes. Energy-based methods such as EFEM and EBEM work with energy densities instead of displacements or voltages. Because the energy density is non-oscillatory, the element size can be chosen independently of the frequency. This allows complex models to avoid a high - or even unmanageable - number of degrees of freedom.
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Efficiency
EFEM and EBEM do not require finer discretizations in the high frequency range. This makes their calculation efficient.
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Complexity
EBEM is suitable for large, complex systems because it is faster and more scalable.
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Various elements
Even structural elements that are difficult to calculate, such as weld seams/points, metamaterials, etc., can be mapped.
Application areas
Areas with problematic complexity for FEM and BEM
Automotive industry
Vibroacoustic analyses of complex/large vehicle models, especially for lightweight structures. EFEM/EBEM enable the investigation of vibration excitations and sound radiation more efficiently than conventional methods.
Aerospace
weight reduction and sound absorption.
EFEM/EBEM can be used in the analysis of cabin noise, engine noise and structural resonances.
Rail transport
Investigation of sound and vibration problems in rail vehicles and along the track.
EFEM/EBEM can be used to analyze sound insulation, resonance problems and vibration reduction.
Shipbuilding
Vibroacoustic analysis in ships, especially with respect to passenger and crew comfort and environmental impact from underwater noise.
EFEM/EBEM allow efficient computation in large, complex structures and coupled structure-fluid problems.
Mechanical Engineering
Reduction of noise and vibration in machinery and equipment, such as motors, gearboxes, pumps and fans.
EFEM/EBEM can be used in the optimization of vibration-isolated suspensions or sound-absorbing materials.
Civil engineering and architecture
In the analysis of sound transmission and vibration problems in buildings, bridges and roads.
EFEM/EBEM can be used to study sound insulation, sound reflections and vibration influence on structures.
EFEM in lightweight construction
The trend toward lightweight design concepts is leading to new challenges in NVH, particularly in the high frequency range. Vibrations of individual components (e.g. engine vibrations) are transmitted more strongly to the lightweight structure than is the case with the classic design and thus have a significant influence on the vibro-acoustic behavior of the vehicle. Read here how we find answers to these challenges with the help of EFEM.
Answers for complex questions
Do you have a computational problem that cannot be solved in a reasonable amount of time? We support you with our high performance computers and alternative methods like EFEM and EBEM to make the decisions possible. I will be happy to advise you!
