| 带有非连续分布式传感器/作动器的压电梁最优控制(英文) |
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| 引用本文： | 陈凤,洪明,宋媚婷,崔洪宇.带有非连续分布式传感器/作动器的压电梁最优控制(英文)[J].船舶与海洋工程学报,2012,11(1):44-51. |
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| 作者姓名： | 陈凤 洪明 宋媚婷 崔洪宇 |
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| 作者单位： | School of Naval Architecture Engineering,Dalian University of Technology |
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| 基金项目： | Supported by the National Natural Science Foundation of China (51079027) |
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| 摘 要： | Because of its light weight,broadband,and adaptable properties,smart material has been widely applied in the active vibration control(AVC) of flexible structures.Based on a first-order shear deformation theory,by coupling the electrical and mechanical operation,a 4-node quadrilateral piezoelectric composite element with 24 degrees of freedom for generalized displacements and one electrical potential degree of freedom per piezoelectric layer was derived.Dynamic characteristics of a beam with discontinuously distributed piezoelectric sensors and actuators were presented.A linear quadratic regulator(LQR) feedback controller was designed to suppress the vibration of the beam in the state space using the high precise direct(HPD) integration method.
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| 关 键 词： | smart material first-order shear deformation high precise direct(HPD) linear quadratic regulator(LQR) beam piezoelectric sensor piezoelectric actuator |
Optimal control of a beam with discontinuously distributed piezoelectric sensors and actuators |
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| Feng Chen,Ming Hong,Meiting Song,Hongyu Cui.Optimal control of a beam with discontinuously distributed piezoelectric sensors and actuators[J].Journal of Marine Science and Application,2012,11(1):44-51. |
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| Authors: | Feng Chen Ming Hong Meiting Song Hongyu Cui |
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| Institution: | Feng Chen,Ming Hong,Meiting Song* and Hongyu Cui School of Naval Architecture Engineering,Dalian University of Technology,Dalian 116024,China |
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| Abstract: | Because of its light weight, broadband, and adaptable properties, smart material has been widely applied in the active vibration
control (AVC) of flexible structures. Based on a first-order shear deformation theory, by coupling the electrical and mechanical
operation, a 4-node quadrilateral piezoelectric composite element with 24 degrees of freedom for generalized displacements
and one electrical potential degree of freedom per piezoelectric layer was derived. Dynamic characteristics of a beam with
discontinuously distributed piezoelectric sensors and actuators were presented. A linear quadratic regulator (LQR) feedback
controller was designed to suppress the vibration of the beam in the state space using the high precise direct (HPD) integration
method. |
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| Keywords: | smart material first-order shear deformation high precise direct(HPD) linear quadratic regulator(LQR) beam piezoelectric sensor piezoelectric actuator |
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