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Cabin Sheet Metal Stiffness Corrections in SEA
Technical Paper
2007-01-2299
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Highly shaped sheet metal panels in automotive and heavy truck designs require the use of frequency-dependent stiffness multipliers in statistical energy analyses. This study reviews the use of correction factors determined from FEA, by counting modes within constant-percentage bands. The application of varied, ideal boundary conditions and extended sub-structure are presented as a means to improve model accuracy. Comparisons between measured body panel modal density and FEA provide insight for the FEA-based method, where results are compared to measured modal density determined from spatially averaged driving-point conductance.
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Citation
Chase, E. and Schroeder, L., "Cabin Sheet Metal Stiffness Corrections in SEA," SAE Technical Paper 2007-01-2299, 2007, https://doi.org/10.4271/2007-01-2299.Also In
References
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