Broadband Vibration Response Optimization Using FEA and Optimization Techniques

This paper discusses vibration response reduction using optimization. Specifically, we consider structures that are vibrating due to broadband excitation. The concept of a single absorber to reduce vibration at a fixed frequency is, of course, well known [1]. Several researchers, including the author, have discussed the use of several absorbers to target multiple resonance peaks [2-7]. However, achieving this using commercial FEA software is advantageous for engineers in industry, particularly because the full analysis and graphics capability of the software can be harnessed for engineering problems, and because a variety of design concepts can be simulated. Here, we discuss how one may formulate and optimize using ANSYS 7.0 software [8]. Results for plate vibration problems are presented.
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