1997-02-24

NVH Optimization of Engines - New Possibilities Using Nonlinear Numerical Simulation Techniques 970503

Linear analysis are state-of-the-art to determine the NVH behaviour of engines by use of the finite element method (FEM). Using direct methods for solving the equations even supercomputing does not help to prevent nonlinear transient analysis from being very time consuming and inefficient for the essentially large number of degrees of freedom.
Presenting nonlinear transient analysis results of different engines, the K+P software product XFEP/NVH is shown to be both highly sophisticated and efficient for determining the NVH behaviour of complete power units.

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