Topological design of damping layers for reducing vibration levels of thin shell structures

来源 :7th China-Japan-Korea Joint Symposium on Optimization of Str | 被引量 : 0次 | 上传用户:luck88
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  Reducing vibration and noise is often of major concern for structures subject to dynamic excitations.Passive vibration control of flexible shell structures by incorporating damping materials has received an ever increasing attention.In particular, the constrained layer damping materials have been used in surface damping treatments in many engineering fields, including vehicles, airplanes, automobiles, ships and electric appliances.In engineering applications, full coverage damping layer treatments is usually not practical due to added mass and excessive material consumption.For flexible structures partially covered by damping layers, it is highly desired to optimize the distribution of the damping material for achieving the best overall damping efficiency, since the vibration suppression effects are generally sensitive to the damping layer layouts.This thus raises the problem of topology optimization of damping layers.
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