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A method for identifying common and unique issues in body in white dynamic stiffness based on modal contribution analysis
2025-04-22 16:45:04| Spiritual Career Counseling
The car body primarily serves as a load-bearing structure. Due to its design characteristics, vibrations and noise are readily transmitted throughout the vehicle, which not only affects ride comfort but also increases the risk of fatigue damage to the body1,2,3. Dynamic stiffness refers to a structures ability to resist deformation under external excitation, and it varies with frequency4,5,6.In body structure design, key points such as engine mounting, damper mounting, trailing arm attachment, and subframe attachment are primary sources of vibration transmission, which should be prioritized to reduce structure-borne noise7. Dynamic stiffness influences the transmission and distribution of structural energy. Therefore, the dynamic stiffness at these key connection points must be sufficiently high to reduce the incoming structural energy8. If the dynamic stiffness is insufficient, it can lead to increased vibration and noise9,10. Recent advancements have introduced novel approaches for...
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