Layout Optimization of Constrained Layer Damping Structure under Stationary Random Excitation
[1]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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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
41卷
Number of periods:
2020 05
Page number:
87-91
Column:
Public date:
2020-10-01
- Title:
- Layout Optimization of Constrained Layer Damping Structure under Stationary Random Excitation
- Keywords:
- stationary random excitation; sensitivity analysis; constrained layer damping; topology optimization; method of moving asymptote
- CLC:
- -
- DOI:
- 10.13705/j.issn.1671-6833.2020.02.025
- 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.
- References:
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Last Update:
2020-10-23