Dynamic Simulation & Correlation for Automotive Exhaust Systems

This paper deals with the dynamic simulation of an automotive exhaust system. Selection of dynamic loads, processing of test data, determination of damping ratio and nonlinear stiffness are explained in detail. Validation of CAE model to test data is also included. It will be shown that the failure location was successfully predicted using modal analysis, and the dynamic stresses were correlated with the dynamic analysis at the failure location.