航空学报 > 2007, Vol. 28 Issue (4): 877-880

基于区间分析方法的智能桁架结构振动特性分析

胡举喜,邱志平   

  1. 北京航空航天大学 固体力学研究所
  • 收稿日期:2006-06-09 修回日期:2006-10-17 出版日期:2007-07-10 发布日期:2007-07-10
  • 通讯作者: 邱志平

Comparison of Probabilistic Statistical Method and Interval Analysis Method for Eigenvalue Problem of Structures System with Uncertain Parameters

HU Ju-xi,QIU Zhi-ping   

  1. Institute of Solid Mechanics, Beijing University of Aeronautics and Astronautics
  • Received:2006-06-09 Revised:2006-10-17 Online:2007-07-10 Published:2007-07-10
  • Contact: QIU Zhiping

摘要:

针对智能结构复杂的不确定性的特点以区间数学理论为基础,并与有限元分析方法相结合,提出了求解具有复杂不确定性智能桁架结构动力特性分析的非概率区间方法和相应的有限元方法。针对智能桁架结构进行了数值分析,研究了各种不确定性参数对智能桁架结构振动特性的影响。数值结果表明,智能桁架结构对各种参数的不确定性均具有很好的鲁棒性。

关键词: 不确定性, 区间分析, 智能结构, 振动特性

Abstract:

In this paper, a non-probability method called interval analysis method to deal with the complex uncertainty of the intelligent structure is presented. And a finite element analysis method using interval analysis is formulated. The uncertainty of dynamic responses for intelligent structure with uncertain parameters is investigated. Finally a numerical example of a joist frame is given to discover the behaviors of uncertain intelligent structures and the results show that it is a good work in controlling the dynamic responses.

Key words: uncertainty,  , interval , analysis,  , intelligent , structure,  , dynamic , response

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