Topology Optimization of Constrained Layer Damping Structures Subjected to Stationary Random Excitation
This paper deals with an optimal layout design of the constrained layer damping (CLD) treatment of vibrating structures subjected to stationary random excitation. The root mean square (RMS) of random response is defined as the objective function as it can be used to represent the vibration level in...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2018/7849153 |
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| _version_ | 1832549625437880320 |
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| author | Zhanpeng Fang Junjian Hou Hongfei Zhai |
| author_facet | Zhanpeng Fang Junjian Hou Hongfei Zhai |
| author_sort | Zhanpeng Fang |
| collection | DOAJ |
| description | This paper deals with an optimal layout design of the constrained layer damping (CLD) treatment of vibrating structures subjected to stationary random excitation. The root mean square (RMS) of random response is defined as the objective function as it can be used to represent the vibration level in practice. To circumvent the computationally expensive sensitivity analysis, an efficient optimization procedure integrating the pseudoexcitation method (PEM) and the double complex modal superposition method is introduced into the dynamic topology optimization. The optimal layout of CLD treatment is obtained by using the method of moving asymptote (MMA). Numerical examples are given to demonstrate the validity of the proposed optimization procedure. The results show that the optimized CLD layouts can effectively reduce the vibration response of the structures subjected to stationary random excitation. |
| format | Article |
| id | doaj-art-01a9d6fe476647cab0b9f196665562a8 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-01a9d6fe476647cab0b9f196665562a82025-02-03T06:10:50ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/78491537849153Topology Optimization of Constrained Layer Damping Structures Subjected to Stationary Random ExcitationZhanpeng Fang0Junjian Hou1Hongfei Zhai2Henan Key Laboratory of Intelligent Manufacturing of Mechanical Equipment, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaHenan Key Laboratory of Intelligent Manufacturing of Mechanical Equipment, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaHenan Key Laboratory of Intelligent Manufacturing of Mechanical Equipment, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaThis paper deals with an optimal layout design of the constrained layer damping (CLD) treatment of vibrating structures subjected to stationary random excitation. The root mean square (RMS) of random response is defined as the objective function as it can be used to represent the vibration level in practice. To circumvent the computationally expensive sensitivity analysis, an efficient optimization procedure integrating the pseudoexcitation method (PEM) and the double complex modal superposition method is introduced into the dynamic topology optimization. The optimal layout of CLD treatment is obtained by using the method of moving asymptote (MMA). Numerical examples are given to demonstrate the validity of the proposed optimization procedure. The results show that the optimized CLD layouts can effectively reduce the vibration response of the structures subjected to stationary random excitation.http://dx.doi.org/10.1155/2018/7849153 |
| spellingShingle | Zhanpeng Fang Junjian Hou Hongfei Zhai Topology Optimization of Constrained Layer Damping Structures Subjected to Stationary Random Excitation Shock and Vibration |
| title | Topology Optimization of Constrained Layer Damping Structures Subjected to Stationary Random Excitation |
| title_full | Topology Optimization of Constrained Layer Damping Structures Subjected to Stationary Random Excitation |
| title_fullStr | Topology Optimization of Constrained Layer Damping Structures Subjected to Stationary Random Excitation |
| title_full_unstemmed | Topology Optimization of Constrained Layer Damping Structures Subjected to Stationary Random Excitation |
| title_short | Topology Optimization of Constrained Layer Damping Structures Subjected to Stationary Random Excitation |
| title_sort | topology optimization of constrained layer damping structures subjected to stationary random excitation |
| url | http://dx.doi.org/10.1155/2018/7849153 |
| work_keys_str_mv | AT zhanpengfang topologyoptimizationofconstrainedlayerdampingstructuressubjectedtostationaryrandomexcitation AT junjianhou topologyoptimizationofconstrainedlayerdampingstructuressubjectedtostationaryrandomexcitation AT hongfeizhai topologyoptimizationofconstrainedlayerdampingstructuressubjectedtostationaryrandomexcitation |