Structural Optimization Method and Techniques to Reduce Radiation Noise

Iku Kosaka, Juan P. Leiva, Brian Watson, Phani Adduri, Takanori Ide
SAE 2011 Noise and Vibration Conference and Exhibition
Publication Date: 
May 24-27, 2011

A methodology to optimize sound pressure responses of a structure, producing a radiation noise due to structural vibration, is presented. The method involves a finite element analysis module to calculate structural vibration, an optimization module to perform sensitivity analysis and structural optimization, and an acoustic module to compute acoustic transfer vectors. The proposed design system is successfully implemented and is demonstrated in the paper using several example problems.

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