Optimization of Passive Constrained Layer Damping Treatments for Vibration Control of Cylindrical Shells
This paper presents the layout optimization of passive constrained layer damping (PCLD) treatment for vibration control of cylindrical shells under a broadband force excitation. The equations governing the vibration responses are derived using the energy approach and assumed-mode method. These equat...
| Main Authors: | , , |
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| Format: | Article |
| Language: | en_US |
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2003
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| Online Access: | http://hdl.handle.net/1721.1/3705 |
| _version_ | 1811085518930182144 |
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| author | Zheng, H. Pau, G.S.H. Liu, Guirong |
| author_facet | Zheng, H. Pau, G.S.H. Liu, Guirong |
| author_sort | Zheng, H. |
| collection | MIT |
| description | This paper presents the layout optimization of passive constrained layer damping (PCLD) treatment for vibration control of cylindrical shells under a broadband force excitation. The equations governing the vibration responses are derived using the energy approach and assumed-mode method. These equations provided relationship between the integrated displacement response over the whole structural volume, i.e. the structural volume displacement (SVD), of a cylindrical shell to structural parameters of base structure and multiple PCLD patches, Genetic algorithms (GAs) based penalty function method is employed to find the optimal layout of rectangular PCLD patches with minimize the maximum displacement response of PCLD-treated cylindrical shells. Optimization solutions of PCLD patches’ locations and shape are obtained under the constraint of total amount of PCLD in terms of percentage added weight to the base structure. Examination of the optimal layouts reveals that the patches tend to increase their coverage in the axial direction and distribute over the whole surface of the cylindrical shell for optimal control of the structural volume displacement. |
| first_indexed | 2024-09-23T13:10:52Z |
| format | Article |
| id | mit-1721.1/3705 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:10:52Z |
| publishDate | 2003 |
| record_format | dspace |
| spelling | mit-1721.1/37052019-04-12T08:09:11Z Optimization of Passive Constrained Layer Damping Treatments for Vibration Control of Cylindrical Shells Zheng, H. Pau, G.S.H. Liu, Guirong vibration analysis nonlinear optimization cylindrical shells constrained layer damping This paper presents the layout optimization of passive constrained layer damping (PCLD) treatment for vibration control of cylindrical shells under a broadband force excitation. The equations governing the vibration responses are derived using the energy approach and assumed-mode method. These equations provided relationship between the integrated displacement response over the whole structural volume, i.e. the structural volume displacement (SVD), of a cylindrical shell to structural parameters of base structure and multiple PCLD patches, Genetic algorithms (GAs) based penalty function method is employed to find the optimal layout of rectangular PCLD patches with minimize the maximum displacement response of PCLD-treated cylindrical shells. Optimization solutions of PCLD patches’ locations and shape are obtained under the constraint of total amount of PCLD in terms of percentage added weight to the base structure. Examination of the optimal layouts reveals that the patches tend to increase their coverage in the axial direction and distribute over the whole surface of the cylindrical shell for optimal control of the structural volume displacement. Singapore-MIT Alliance (SMA) 2003-11-19T20:48:02Z 2003-11-19T20:48:02Z 2003-01 Article http://hdl.handle.net/1721.1/3705 en_US High Performance Computation for Engineered Systems (HPCES); 309307 bytes application/pdf application/pdf |
| spellingShingle | vibration analysis nonlinear optimization cylindrical shells constrained layer damping Zheng, H. Pau, G.S.H. Liu, Guirong Optimization of Passive Constrained Layer Damping Treatments for Vibration Control of Cylindrical Shells |
| title | Optimization of Passive Constrained Layer Damping Treatments for Vibration Control of Cylindrical Shells |
| title_full | Optimization of Passive Constrained Layer Damping Treatments for Vibration Control of Cylindrical Shells |
| title_fullStr | Optimization of Passive Constrained Layer Damping Treatments for Vibration Control of Cylindrical Shells |
| title_full_unstemmed | Optimization of Passive Constrained Layer Damping Treatments for Vibration Control of Cylindrical Shells |
| title_short | Optimization of Passive Constrained Layer Damping Treatments for Vibration Control of Cylindrical Shells |
| title_sort | optimization of passive constrained layer damping treatments for vibration control of cylindrical shells |
| topic | vibration analysis nonlinear optimization cylindrical shells constrained layer damping |
| url | http://hdl.handle.net/1721.1/3705 |
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