APPLICATION OF FEA TO THE COLLOCATION OF ACTUATOR/SENSOR IN THE INTELLIGENT STRUCTURES 被引量：1

APPLICATION OF FEA TO THE COLLOCATION OF ACTUATOR/SENSOR IN THE INTELLIGENT STRUCTURES

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摘要 The piezothermoelectric actuator/sensor collocation for advanced intelligent structure is studied. The quasi-static equations of piezothermoelasticity are used to analyze the coupling effects between the displacement, temperature and electric fields of piezothermoelasticity continua and the governing equations for piezothermoelasticity continua are derived to discuss the effects of coupling factors on the control/sensing performance in intelligent structure. Based on those analyses, a finite element analysis model of distributed piezothertnoelectric continua is developed later. The thermal stress and deformation of a beam are calculated by FEA method so as to determine the optimal actuator/sensor placement. Based on the results of the optimal analysis procedure of actuator/sensor placement, some conclusions of actuator/sensor placement are obtained. Thus, the optimal actuator/sensor placement for piezothermoelectric intelligent structure can be found from the actuator/sensor placements available so that intelligent system will have the best controllability and observability. The piezothermoelectric actuator/sensor collocation for advanced intelligent structure is studied. The quasi-static equations of piezothermoelasticity are used to analyze the coupling effects between the displacement, temperature and electric fields of piezothermoelasticity continua and the governing equations for piezothermoelasticity continua are derived to discuss the effects of coupling factors on the control/sensing performance in intelligent structure. Based on those analyses, a finite element analysis model of distributed piezothertnoelectric continua is developed later. The thermal stress and deformation of a beam are calculated by FEA method so as to determine the optimal actuator/sensor placement. Based on the results of the optimal analysis procedure of actuator/sensor placement, some conclusions of actuator/sensor placement are obtained. Thus, the optimal actuator/sensor placement for piezothermoelectric intelligent structure can be found from the actuator/sensor placements available so that intelligent system will have the best controllability and observability.

作者 Du Sheliang, Lin Zhongqin (Institute of Mechanical Engineering ,Shanghai Jiaotong University) Yang Keji,Fu Jianzhong,Chen Zichen (Zhejiang University)

出处《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2001年第3期219-223,共5页 中国机械工程学报（英文版）

基金 The project is supported by National Natural Science Foundation of China (59805018)

关键词 Intelligent structure Piezothermoelasticity coupling effects Finite element analysis( FEA) Actuator/sensor collocation Intelligent structure Piezothermoelasticity coupling effects Finite element analysis( FEA) Actuator/sensor collocation

分类号 TP212 [自动化与计算机技术—检测技术与自动化装置]

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参考文献8

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Chinese Journal of Mechanical Engineering

2001年第3期

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APPLICATION OF FEA TO THE COLLOCATION OF ACTUATOR/SENSOR IN THE INTELLIGENT STRUCTURES 被引量：1

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