Development and Validation of Numerical Model for Standardized Oberst Beam Test (ASTM E 756-98)

Paper #:
  • 2014-36-0796

Published:
  • 2014-11-04
Citation:
de Carvalho Moura, F., Ferreira, T., Costa, R., Takemori, C. et al., "Development and Validation of Numerical Model for Standardized Oberst Beam Test (ASTM E 756-98)," SAE Technical Paper 2014-36-0796, 2014, https://doi.org/10.4271/2014-36-0796.
Pages:
8
Abstract:
Currently, the simulation models in acoustics and vibrations are built considering only the main structures of the vehicle, as its basic structure (Body-in-white, BIW), doors, dashboard, and so on.To take into account the contribution of components with less influence (such as carpets, seats, sound insulation, and so on) in the behavior of the overall response of the model, the average characteristics of these materials are inserted evenly distributed in these models.However, to obtain models with better correlation levels is necessary to consider local characteristics of the application of these components. In this work was developed and numerically validated, the model that describes the standardized test of “Oberst Beam” (ASTM E 756-98) to obtain the damping of the blankets used for damping of the panel vibration.With these characteristics, in future work, is expected to be possible, also with a good correlation, consider the effect of these materials on whole vehicle.
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