Applied Mathematics and Mechanics (English Edition) ›› 2004, Vol. 25 ›› Issue (8): 845-853.

• 论文 •    下一篇

LINEAR ACTIVE STRUCTURES AND MODES(Ⅰ)—BASIC CONCEPTS AND PROPERTIES

张景绘1, 龚靖1,3, 王永刚1,2   

  1. 1. School of Civil Engineering and Mechanics, Xi’an Jiaotong University, Xi’an 710049, P. R. China;
    2. School of Science, Chang’an University, Xi’an 710064, P. R. China;
    3. Department of Civil Engineering, Northeast China Institute of Electric Power, Jilin 132012, P. R. China
  • 收稿日期:2002-11-01 修回日期:2004-03-08 出版日期:2004-08-18 发布日期:2004-08-18
  • 基金资助:

    the National Natural Science Foundation of China(10272087); the Associated Foundation of the National Natural Science Foundation Committee of China and the Academy of Engineering Physics of China(10176042)

LINEAR ACTIVE STRUCTURES AND MODES(Ⅰ)—BASIC CONCEPTS AND PROPERTIES

ZHANG Jing-hui1, GONG Jing1,3, Wang Yong-gang1,2   

  1. 1. School of Civil Engineering and Mechanics, Xi’an Jiaotong University, Xi’an 710049, P. R. China;
    2. School of Science, Chang’an University, Xi’an 710064, P. R. China;
    3. Department of Civil Engineering, Northeast China Institute of Electric Power, Jilin 132012, P. R. China
  • Received:2002-11-01 Revised:2004-03-08 Online:2004-08-18 Published:2004-08-18
  • Supported by:

    the National Natural Science Foundation of China(10272087); the Associated Foundation of the National Natural Science Foundation Committee of China and the Academy of Engineering Physics of China(10176042)

摘要: Some basic concepts about the active structures were firstly explained, and the main subjects to study in the field of active structure dynamics were synthesized. For the linear active structures, the annotations on the modes were done in detail. The physical meanings of the right and left eigenvectors were explained. The right eigenvectors are the modal shapes and the modal responses of an active structure depend on the left ones. The adjoint structure of an active structure was defined and the reciprocity theorem was interpreted. For two active structures, which are adjoint to each other and with the reciprocal gain-matrices, the right and left eigenvector are reciprocal. The relationship between an active structure and the corresponding passive structure is expressed with the transfer functions, which is employed to resolve the estimation problems.

关键词: active structure, vibration control, smart structure, mode

Abstract: Some basic concepts about the active structures were firstly explained, and the main subjects to study in the field of active structure dynamics were synthesized. For the linear active structures, the annotations on the modes were done in detail. The physical meanings of the right and left eigenvectors were explained. The right eigenvectors are the modal shapes and the modal responses of an active structure depend on the left ones. The adjoint structure of an active structure was defined and the reciprocity theorem was interpreted. For two active structures, which are adjoint to each other and with the reciprocal gain-matrices, the right and left eigenvector are reciprocal. The relationship between an active structure and the corresponding passive structure is expressed with the transfer functions, which is employed to resolve the estimation problems.

Key words: active structure, vibration control, smart structure, mode

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