Browse Publications Technical Papers 2001-26-0042
2001-01-10

Validation of FE Models Using Experimental Modal Analysis 2001-26-0042

The dynamic properties of the structure plays an important role in deciding the NVH behaviour of the structure. Finite element methods become the most handy tool to study and find out the right solution for the NVH control. The validity of the finite element model for a particular structure is a very important step in the solution process. The experimental modal analysis is an important technique to correlate the finite element model by evaluating the dynamics of the structure. The modal properties i.e. natural frequencies, and mode shapes are the parameters used for correlating the finite element results.
The present paper explains the case studies carried out for the experimental validation of the finite element model of a rectangular plate and oilpan. The results show quite good correlation of finite element model and experimental model, which is very useful for structural modification to solve the critical noise control problems or for designing less noisy products with minimum iterations.

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