Abstract
When the interior shape is determined, the frequency range to be reduced, which is a particular problem, is determined. Until now, there has been no noise reduction countermeasure method using information on resonant frequency such as strain and kinetic energy density. For the first time in this report, it is shown that noise reduction of the resonant frequency, existing in the problematic frequency, can be effectively obtained after reducing the plate thickness from the energy density distribution. The greatest advantage of this method is that, unlike conventional optimization methods, it is possible to take countermeasures interactively and extremely reasonably, and systematization to draw out its effectiveness will also be discussed.
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