1979-02-01

Suspension Parameter Prediction Using Finite Element Analysis 790376

A technique has been developed for applying finite element computer models, assembled for vibration work, to analysis and prediction of vehicle handling performance. The method facilitates the prediction of chassis stiffnesses important to handling before a vehicle is built and available for laboratory testing by more traditional methods. The technique incorporates the general purpose finite element computer program (NASTRAN), total vehicle system models developed for structural analysis, and applied loads intended to simulate an existing laboratory test. A post-processor program summarizes chassis parameters related to handling from the general NASTRAN displacements in familiar units. Example results from actual and simulated testing are compared.

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