Closed Loop Finite Element Modeling of Piezoelectric Smart Structures
The objective of this paper is to develop a general design and analysis scheme for actively controlled piezoelectric smart structures. The scheme involves dynamic modeling of a smart structure, designing control laws and closed-loop simulation in a finite element environment. Based on the structure...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2006-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2006/505419 |
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| _version_ | 1832556008876015616 |
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| author | Guang Meng Lin Ye Xing-jian Dong Ke-xiang Wei |
| author_facet | Guang Meng Lin Ye Xing-jian Dong Ke-xiang Wei |
| author_sort | Guang Meng |
| collection | DOAJ |
| description | The objective of this paper is to develop a general design and analysis scheme for actively controlled piezoelectric smart structures. The scheme involves dynamic modeling of a smart structure, designing control laws and closed-loop simulation in a finite element environment. Based on the structure responses determined by finite element method, a modern system identification technique known as Observer/Kalman filter Identification (OKID) technique is used to determine the system Markov parameters. The Eigensystem Realization Algorithm (ERA) is then employed to develop an explicit state space model of the equivalent linear system for control law design. The Linear Quadratic Gaussian (LQG) control law design technique is employed to design a control law. By using ANSYS parametric design language (APDL), the control law is incorporated into the ANSYS finite element model to perform closed loop simulations. Therefore, the control law performance can be evaluated in the context of a finite element environment. Finally, numerical examples have demonstrated the validity and efficiency of the proposed design scheme. Without any further modifications, the design scheme can be readily applied to other complex smart structures. |
| format | Article |
| id | doaj-art-a08fb766854040f1bb868b8374cc05ca |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2006-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-a08fb766854040f1bb868b8374cc05ca2025-02-03T05:46:40ZengWileyShock and Vibration1070-96221875-92032006-01-0113111210.1155/2006/505419Closed Loop Finite Element Modeling of Piezoelectric Smart StructuresGuang Meng0Lin Ye1Xing-jian Dong2Ke-xiang Wei3State Key Lab. of Vibration, Shock & Noise, Shanghai Jiao Tong University, Shanghai, 200030, ChinaCentre for Advanced Materials Technology, School of Aerospace, Mechanical and Mechatronic Engineering (J07), The University of Sydney, Sydney, NSW 2006, AustraliaState Key Lab. of Vibration, Shock & Noise, Shanghai Jiao Tong University, Shanghai, 200030, ChinaState Key Lab. of Vibration, Shock & Noise, Shanghai Jiao Tong University, Shanghai, 200030, ChinaThe objective of this paper is to develop a general design and analysis scheme for actively controlled piezoelectric smart structures. The scheme involves dynamic modeling of a smart structure, designing control laws and closed-loop simulation in a finite element environment. Based on the structure responses determined by finite element method, a modern system identification technique known as Observer/Kalman filter Identification (OKID) technique is used to determine the system Markov parameters. The Eigensystem Realization Algorithm (ERA) is then employed to develop an explicit state space model of the equivalent linear system for control law design. The Linear Quadratic Gaussian (LQG) control law design technique is employed to design a control law. By using ANSYS parametric design language (APDL), the control law is incorporated into the ANSYS finite element model to perform closed loop simulations. Therefore, the control law performance can be evaluated in the context of a finite element environment. Finally, numerical examples have demonstrated the validity and efficiency of the proposed design scheme. Without any further modifications, the design scheme can be readily applied to other complex smart structures.http://dx.doi.org/10.1155/2006/505419 |
| spellingShingle | Guang Meng Lin Ye Xing-jian Dong Ke-xiang Wei Closed Loop Finite Element Modeling of Piezoelectric Smart Structures Shock and Vibration |
| title | Closed Loop Finite Element Modeling of Piezoelectric Smart Structures |
| title_full | Closed Loop Finite Element Modeling of Piezoelectric Smart Structures |
| title_fullStr | Closed Loop Finite Element Modeling of Piezoelectric Smart Structures |
| title_full_unstemmed | Closed Loop Finite Element Modeling of Piezoelectric Smart Structures |
| title_short | Closed Loop Finite Element Modeling of Piezoelectric Smart Structures |
| title_sort | closed loop finite element modeling of piezoelectric smart structures |
| url | http://dx.doi.org/10.1155/2006/505419 |
| work_keys_str_mv | AT guangmeng closedloopfiniteelementmodelingofpiezoelectricsmartstructures AT linye closedloopfiniteelementmodelingofpiezoelectricsmartstructures AT xingjiandong closedloopfiniteelementmodelingofpiezoelectricsmartstructures AT kexiangwei closedloopfiniteelementmodelingofpiezoelectricsmartstructures |