北京航空航天大学学报 ›› 2000, Vol. 26 ›› Issue (5): 584-587.

• 论文 • 上一篇    下一篇

压电类智能梁元的优化布局

任秀华1, 丁桦2, 麦汉超1, 陆萌1   

  1. 1. 北京航空航天大学 飞行器设计与应用力学系;
    2. 中国科学院 力学所
  • 收稿日期:1999-05-20 出版日期:2000-05-31 发布日期:2010-09-27
  • 作者简介:任秀华(1973-),女,黑龙江肇州人,硕士生,100083,北京.

Mechanical Performances of Piezoelectric Element and Optimal Control

REN Xiu-hua1, DING Hua2, MAI Han-chao1, LU Meng1   

  1. 1. Beijing University of Aeronautics and Astronautics,Dept.of Flight Design and Applied Mechanics;
    2. Chinese Academy of Science
  • Received:1999-05-20 Online:2000-05-31 Published:2010-09-27

摘要: 分别对具有无限小长度驱动器的悬臂和简支智能梁的一阶模态和二阶模态进行了具体的分析和计算,确定了驱动器在梁元中的最优布局,总结了有关驱动器在梁元中布局的一些基本性质,并从解析的角度对驱动器的最优布局点给予解释.由于以上有关驱动器最优布局的分析是在忽略驱动器的长度的假设基础上进行的,所以又对有限长度的驱动器的布局问题进行了初步的探讨.

Abstract: On the basis of performances of the piezoelectric actuators and sensors,the characteristics of beam with highly distributed piezoelectric sensors and actuators and a feedback conditioning system are analyzed,and the dynamic differential equation is also derived.A finite element model of the intelligent beam has been formulated to derive the differential equation.Having obtained the basic theories of the intelligent beam,both the first mode and the second mode of the cantilever beam and the simple supported beam are analyzed and calculated to determine the appropriate criteria for placing the actuator.Characteristics related to the location for the actuator placement are also developed and illustrated.The choice of actuator location is on the assumption that the actuator and sensor have no length,so the location of actuator that has length is also studied.

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