[1]房占鹏,张孟珂,李宏伟.平稳随机激励下约束阻尼结构布局优化设计[J].郑州大学学报(工学版),2020,41(05):87-91.
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平稳随机激励下约束阻尼结构布局优化设计()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
41
期数:
2020年05期
页码:
87-91
栏目:
出版日期:
2020-10-01

文章信息/Info

Title:
Layout 0ptimization of Constrained Layer Damping Structure under Stationary Random Excitation
作者:
房占鹏张孟珂李宏伟
文献标志码:
A
摘要:
针对平稳随机激励下约束阻尼结构布局优化问题,采用虛拟激励法对平稳随机激励下约束阻尼结构振动响应进行分析。以平稳随机激励下约束阻尼结构位移响应均方根值最小化为优化目标,约束阻尼材料体积为约束条件,建立约束阻尼结构的拓扑优化模型。提出复模态叠加法和伴随法相结合的灵敏度分析方法,以提高灵敏度计算效率。采用移动渐近线法(MMA)对建立的拓扑优化模型进行求解。通过算例分析,验证了提出的平稳随机激励下约束阻尼结构布局优化方法的正确性和有效性。
Abstract:
Aimed to solve the problems of optimization design of constrained layer damping ( CLD )structuresunder stationary random excitation, the vibration response of CLD structures under stationary random excitationwas analyzed by using pseudo excitation method ( PEM ). ’The topology optimization model of CLD structures wasestablished by minimizing the root mean square value of the displacement response of the CLD structures understationary random excitation and taking the volume of the CLD materials as the constraint condition. To circum-vent the computational expensive of the sensitivity analysis, an efficient optimization procedure integrating thecomplex modal superposition method and the adjoint method was proposed. The topology optimization model wassolved by method of moving asymptotes ( MMA ). The numerical examples demonstrated that the proposed optimi-zation procedure of CLD structures under stationary random excitation was of validity and effectiveness.
更新日期/Last Update: 2020-10-23