English

应用科学学报 ›› 1999, Vol. 17 ›› Issue (1): 1-8.

• 论文 •    下一篇

自诊断自适应智能复合材料结构系统的研究

陶宝祺, 石立华, 熊克, 梁大开, 袁慎芳   

  1. 南京航空航天大学
  • 收稿日期:1997-10-11 出版日期:1999-03-31 发布日期:1999-03-31
  • 基金资助:
    国家自然科学基金、航空科学基金及高校博士点基金资助项目

A Smart Composite Structure System of Self-Diagnostic and Self-Adaptive Strength

TAO BAOQI, SHI LIHUA, XIONG KE, LIANG DAKAI, YUAN SHENFANG   

  1. Research Institute of Smart Material and Structure Nanjing University of Aeronautics and Astronautics, Nanjing 210016
  • Received:1997-10-11 Online:1999-03-31 Published:1999-03-31

PDF

123

被引次数

12

摘要： 在复合材料中埋入传感和驱动元件并与外部处理器结合,构成了自诊断、自适应智能复合材料结构系统.传感器网络由光纤和压电传感元件构成,驱动器采用特殊设计的形状记忆合金框架,该系统采用人工神经网络可识别结构的载荷与损伤状况,并可根据诊断结果激励相应位置的形状记忆合金实现大面积结构局部应力分布的自适应调整.

关键词: 复合材料, 智能结构, 驱动器, 传感器

Abstract: A smart composite structure system with embedded sensors and actuators is developed to realize the function of self-diagnostic and self-adaptive strength. Sensory systems employing optic fibers and piezoelectric elements are investigated. A frame type Shape Memory Allory(SMA) actuator is designed. The smart system can identify loads and damages of the structure by using artificial neural networks and initiate adaptive control to the embedded SMA to improve the structural strength.

Key words: composites, sensor, actuator, smart structure