Computer Science
Scientific paper
Sep 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005asaj..118.1952n&link_type=abstract
Acoustical Society of America Journal, Volume 118, Issue 3, pp. 1952-1952 (2005).
Computer Science
Scientific paper
This paper discusses a practical approach to predict low range planetary gear noise in an automotive transfer case using commercial numerical codes. Dynamic responses of the planetary gear set are calculated using a 2D finite element/contact mechanics model. These responses are used as boundary conditions to calculate surface velocities on the transfer case housing using model frequency response analysis. Subsequently, the surface velocities are used in a vibro-acoustic model to predict acoustic responses of the transfer case. The predicted acoustic responses are compared to experimental measurements conducted in a hemianechoic chamber. It is shown that the predictions are in reasonable agreement with the experiments and the approach enables designers to obtain required information on acoustic responses of the transfer case in a timely and cost-efficient manner.
Glynn Charles D.
Narayanaswamy Ravi
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