Validation of a SEA Model for a Minivan: Use of Ideal Air- and Structure-Borne Sources

Paper #:
  • 1999-01-1697

Published:
  • 1999-05-17
Citation:
Wang, D., Goetchius, G., and Onsay, T., "Validation of a SEA Model for a Minivan: Use of Ideal Air- and Structure-Borne Sources," SAE Technical Paper 1999-01-1697, 1999, https://doi.org/10.4271/1999-01-1697.
Pages:
10
Abstract:
During the development of a Statistical Energy Analysis (SEA) model, the most important step leading toward higher quality and confidence is the model validation process. In this paper, three different ideal source environments are employed to validate a SEA model of a minivan; diffuse field in a reverberation room, free field in an hemi-anechoic room and single-point excitation by a shaker. The tests were intended to emphasize the air-and structure-borne paths of the model separately. During the reverberation room test, capability of the model to track the design changes was checked by perturbing the configuration of the vehicle in successive steps. Finally, the performance of the validated SEA model is demonstrated by using an operational load case.
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