北京航空航天大学学报 ›› 2001, Vol. 27 ›› Issue (6): 690-693.

• 论文 • 上一篇    下一篇

SMA超弹性系统在平稳随机激励下的响应预测

阎晓军, 聂景旭   

  1. 北京航空航天大学 动力系
  • 收稿日期:2000-04-06 出版日期:2001-06-30 发布日期:2010-09-26
  • 作者简介:阎晓军(1973-),男,山西永济人,博士后,100083,北京.

Prediction of the Response of SMA Superelastic Systems Under Stationary Random Excitation

YAN Xiao-jun   

  1. Beijing University of Aeronautics and Astronautics, Dept. of Propulsion
  • Received:2000-04-06 Online:2001-06-30 Published:2010-09-26

摘要: 提出了一种简单的折线超弹性模型来描述SMA(Shape Memory Alloys)的力学特性,将其利用在等价线性化方法中,对SMA超弹性系统在随机激励下的响应进行了预测,预测结果和数值模拟方法的结果进行了对比,有较好的计算精度.该方法为解析方法,计算效率高,便于工程使用.

Abstract: With an advantage that the motion equation of the system can be linearized directly in closed form, a simple superelastic model for SMA (Shape Memory Alloy) was proposed in the equivalent linearization method. The method was employed to predict response of SMA superelastic system under stationary white noise excitation. The results are in good agreement with those obtained by numerical simulation in all excitation levels for systems with different damping capacities. It was finally concluded that the equivalent linearization method based on the model can be used in engineering with higher computation efficiency.

中图分类号: 


版权所有 © 《北京航空航天大学学报》编辑部
通讯地址:北京市海淀区学院路37号 北京航空航天大学学报编辑部 邮编:100191 E-mail:jbuaa@buaa.edu.cn
本系统由北京玛格泰克科技发展有限公司设计开发