有限测点下结构复合反演的混合法

英文篇名：Multiple inversion method with responses on limited degrees of freedom in time domain and frequency domain
中文刊名：振动工程学报
英文刊名：Journal of Vibration Engineering
作者：陈健云 ; 王建有
英文作者：CHEN Jian-yun~(1 ; 2) ; WANG Jian-you~2 (1.State Key Laboratory of Coastal and Offshore Engineering ; Dalian University of Technology ; Dalian 116023 ; China ; 2.School of Civil & Hydraulic Engineering ; Dalian University of Technology ; Dalian 116023 ; China)
中文关键词：参数识别 ; 复合反演 ; 未知输入 ; 有限测试信息
英文关键词：parameter identification ; multiple inversion ; unknown input ; limited test information
出版日期：2006-03-30
机构：大连理工大学海岸与近海工程国家重点试验室,大连理工大学土木水利学院辽宁大连116023,大连理工大学土木水利学院,辽宁大连116023,辽宁大连116023
年：2006
期：01
出版单位：振动工程学报

摘要

回顾了近年来输入信息未知条件下结构识别的复合反演算法,并对输出信息测试不完备条件下的复合反演问题做了深入的研究,提出了时频域混合的复合反演算法。该算法首先在时域内利用子结构上的测试信息反演未知输入,然后在频域内依据反演得到的未知输入和有限测点上的响应信息构造目标函数来识别结构参数。该算法适用于具有多个未知输入的情况,与仅适用于单个未知输入条件下的复合反演算法相比,具有更广泛的应用价值。最后用一数值算例说明了本文算法的可行性。
Multiple Inversion method in recent years is reviewed.And then,a new method based on time domain and frequency domain for both input and system identification is put forward.This method does not require responses of all dynamic degrees of freedom and can be used to the situation while multiple inputs acting on structure are unknown.This method can be divided into two steps.In the first step,by using limited responses,the multiple inversion based on sub-structure is applied.And then in the second step,by using the inputs obtained before,an optimization problem is solved and through which the vest structural parameters are identified.Compared with other method,that is useable only for solving one unknown input information(such as ground motion),this method has a wider range of application background.At last,a numerical example is employed to show the feasibility of this method.

引文

[1]陈隽,李杰.部分输入未知条件下的结构系统识别研究[J].地震工程与工程振动,1998,18(4):40—45.
    [2]陈隽,史凯.高层建筑损伤识别中的补偿算法[J].振动与冲击,2002,21(2):24—27.
    [3]陈健云,王建有.部分输入未知条件下结构参数识别法研究[J].计算力学学报,2005,22(2):149—154.
    [4]李杰,陈隽.结构参数未知条件下的地震动反演研究[J].地震工程与工程振动,1997,17(3):27—32.
    [5]李杰,陈隽.输入未知条件下结构物理参数识别方法研究[J].计算力学学报,1997,16(1):32—40.
    [6]W ang D,H a lder A.E lem en t-leve l systemiden tification w ith unknow n inpu t[J].A SCE J of E.M.1994,120(1):159—176.
    [7]W ang D,H a lder A.System iden tification w ith lim itedobservation and w ithou t inpu t[J].Journa l ofEng ineering M echan ics.1997,123(5):504—511.
    [8]冯新,周晶,陈健云.一种结构参数识别的二阶段法[J].计算力学学报,2002,19(2):222—225.
    [9]B enedetti D,G en tile C.Iden tification of m oda lquan tities from tw o earthquake responses[J].E arthquake Eng ineering and S tructura l D ynam ic,123(5),1994:504—511.
    [10]Jun-Seong Cho i,Jong Seh L ee,Chung-B ang Y un.Inpu t and system iden tification of the Hua lien so il-structure in teraction system us ing earthquakeresponse data[J].E arthquake Eng ineering&S tructura l D ynam ics,2003,32:1955—1975.
    [11]王建有.测试信息不完备下结构物理参数识别方法研究[D].大连:大连理工大学,2005.