Nonlinear Modeling and Identification of Structural Joint by Response Control Vibration Test

作     者：LIU Xin WANG Lixiao CHEN Qidong SUN Beibei 

作者机构：School of Mechanical EngineeringChangshu Institute of TechnologyChangshu 215500P.R.China School of Mechanical EngineeringSuzhou UniversitySuzhou 215000P.R.China School of Mechanical EngineeringSoutheast UniversityNanjing 210096P.R.China 

出 版 物：《Transactions of Nanjing University of Aeronautics and Astronautics》 (南京航空航天大学学报（英文版）)

年 卷 期：2019年第36卷第6期

页      面：964-976页

核心收录：

学科分类：12[管理学] 083002[工学-环境工程] 1204[管理学-公共管理] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 120402[管理学-社会医学与卫生事业管理(可授管理学、医学学位)] 08[工学] 0837[工学-安全科学与工程] 0802[工学-机械工程] 0825[工学-航空宇航科学与技术] 0704[理学-天文学] 080101[工学-一般力学与力学基础] 0801[工学-力学（可授工学、理学学位）] 

主　　题：nonlinear identification shaking table response control vibration test relative displacement structural joint constant response 

摘      要：Components of mechanical product are assembled by structural joints,such as bolting,riveting,welding,*** joints introduce nonlinearity to some engineering structures,and the nonlinearity need to be modeled *** meet serious quality requirements,it is necessary to detect and identify nonlinearity of mechanical products for structural *** test to acquire a dynamic response has been applied for decades,which provides reliable results for finite element(FE)model *** response control vibration test for identification of nonlinearity is presented.A nonlinear system can be regarded as linearity for particular steady state response,and classical linear analysis tool is applicable to extract modal data for particular ***,its applicability is illustrated by some numerical ***,it is implemented on experimental setup with structural joints by shaking *** stiffness and damping function dependent of relative displacement are fitted to describe its inherent *** spring and damping forces are identified by harmonic balance method(HBM)to predict output *** on the identified results,the procedure is recommended that it allows a reliable measurement of nonlinearity with a certain accuracy.