[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.[doi:10.13705/j.issn.1671-6833.2020.02.025]
　FANG Zhanpeng,ZHANG Mengke,LI Hongwei.Layout Optimization of Constrained Layer Damping Structure under Stationary Random Excitation[J].Journal of Zhengzhou University (Engineering Science),2020,41(05):87-91.[doi:10.13705/j.issn.1671-6833.2020.02.025]
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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卷
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 Optimization of Constrained Layer Damping Structure under Stationary Random Excitation
作者:
房占鹏; 张孟珂; 李宏伟
郑州轻工业大学机电工程学院,河南郑州450002, 伦敦玛丽女王大学电子工程与计算机科学学院,英国伦敦E1 4NS

Author(s):
FANG Zhanpeng1;  ZHANG Mengke2;  LI Hongwei1
1.School of Mechanical and Electrical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China; 2.School of Electronic Engineering and Computer Science, Queen Mary University of London, London E1 4NS, United Kingdom
关键词:
Keywords:
stationary random excitation;  sensitivity analysis;  constrained layer damping;  topology optimization;  method of moving asymptote
DOI:
10.13705/j.issn.1671-6833.2020.02.025
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) structures under stationary random excitation, the vibration response of CLD structures under stationary random excitation was analyzed by using pseudo excitation method (PEM). The topology optimization model of CLD structures was established by minimizing the root mean square value of the displacement response of the CLD structures under stationary random excitation and taking the volume of the CLD materials as the constraint condition. To circumvent the computational expensive of the sensitivity analysis, an efficient optimization procedure integrating the complex modal superposition method and the adjoint method was proposed. The topology optimization model was solved by method of moving asymptotes (MMA). The numerical examples demonstrated that the proposed optimization procedure of CLD structures under stationary random excitation was of validity and effectiveness.

参考文献/References:

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更新日期/Last Update: 2020-10-23