考虑连接特性的子结构频响综合方法及实现

中国机械工程 ›› 2013, Vol. 24 ›› Issue (10): 1385-1389.

考虑连接特性的子结构频响综合方法及实现

王威;胡于进;凌玲

华中科技大学，武汉，430074

出版日期:2013-05-25 发布日期:2013-05-28
基金资助:
国家自然科学基金资助项目(50675077);国家科技重大专项(2012ZX04003-021);中央高校基本科研业务费专项资金资助项目（2011QN126）
National Natural Science Foundation of China（No. 50675077）;

National Science and Technology Major Project ( No. 2012ZX04003-021);
Fundamental Research Funds for the Central Universities( No. 2011QN126)

Method and Implementation of Substructure FRF Synthesis Considering Connection Property

Wang Wei;Hu Yujin;Ling Ling

Huazhong University of Science and Technology,Wuhan,430074

Online:2013-05-25 Published:2013-05-28
Supported by:

National Natural Science Foundation of China（No. 50675077）;

National Science and Technology Major Project ( No. 2012ZX04003-021);
Fundamental Research Funds for the Central Universities( No. 2011QN126)

摘要/Abstract

摘要：

基于频响函数的子结构综合方法，通过引入子结构连接特性的参数化模型，提出了一种将刚性连接特性和柔性连接特性统一处理的子结构建模与综合求解方法。将该方法用于试验子结构与理论子结构的混合建模与求解系统，实现了不同连接特性的多子结构的混合建模与综合求解。实例验证结果表明：该方法正确有效,且在子结构模拟试验数据存在一定随机误差的情况下也依然有效。

关键词: 频响函数, 子结构综合, 连接特性, 混合建模, 柔性连接

Abstract:

On the basis of FRF substructuring method,parameterized connection property between substructures was taken into account,which made connection parts independent of the connected substructure system.The general treatment of rigid connection property and flexible connection property was realized.At the same time,the hybrid modeling of test substructure and theoretical substructure was realized and the corresponding hybrid modeling solution system was developed.The numerical calculations show that this method can deal with flexible connections among substructures and is still effective when stimulation test data of substructure is polluted by random errors.

Key words: frequency response function(FRF), substructure synthesis, connection property, hybrid modeling, flexible connection

中图分类号:

TH113.1

王威, 胡于进, 凌玲. 考虑连接特性的子结构频响综合方法及实现[J]. 中国机械工程, 2013, 24(10): 1385-1389.

WANG Wei, HU Xu-Jin, LING Ling. Method and Implementation of Substructure FRF Synthesis Considering Connection Property[J]. China Mechanical Engineering, 2013, 24(10): 1385-1389.

参考文献

[1]Cuppens K,Sas P,Hermans L.Evaluation of theFRF Based Substructuring and Modal SynthesisTechnique Applied to Vehicle FE Data[C]//Pro-ceedings of the International Conference on Noiseand Vibration Engineering.Leuven, Belgium, 2002:1143

-1150.
[2]Heylen W,Lammens S,Sas P.Modal Analysis The-ory and Testing [M].Leuven, Belgium:KatholiekeUniversiteit, 1998.
[3]吴仕超[1],蔡国平[1].考虑界面转角自由度的频域子结构法研究[J].振动工程学报,2011,24(3):323-326.
[4]董兴建[1],孟光[1].实验模型和有限元模型的混合建模方法[J].振动与冲击,2009,28(7):38-40.
[5]Imergun M, Robb D A, Ewins D J.StructuralModification and Coupling Dynamic Analysis UsingMeasured FRF Data [C]//Proceedings of the 4thInternational Modal Analysis Conference.London,1987:1136-1141.
[6]Jetmunderson B,Bielawa R L, Flannelly R.Generalized Frequency Domain SubstructureSynthesis[J], Journal of the American HelicopterSociety,1988,33(1):55-64.
[7]Ren Y,Beards C F.On Substructure Synthesis withFRF Data [ J].Journal of Sound and Vibration,1995,185(5):845-866.
[8]Liu W,Ewins D J.Substructure Synthesis viaElastic Media[J].Journal of Sound and Vibration,2002,257(2):361-379.
[9]Tsai J S, Chou Y F.The Identification of DynamicCharacteristics of a Single Bolt Joint[J].Journal ofSound and Vibration, 1988,125(3):487-502.
[10]廖伯瑜,周新民,尹志宏.现代机械动力学及其工程应用[M].北京:机械工业出版社,2003. 5
[11]Mao Kuanmin,Li Bin, Wu Jun, et al.StiffnessInfluential Factors-based Dynamic Modeling andIts Parameter Identification Method of Fixed Jointsin Machine Tools C J].International Journal ofMachine Tools & Manufacture,2010,50:156-164.
[12]李德葆,陆秋海.试验模态分析及应用[M].北京:科学出版社,2001.
[13]Esfandiari A,Bakhtiari-Nejad F,Sanayei M,et al.Structural Finite Element Model Updating UsingTransfer Function Data [ J].Computers andStructures ,2010,88:54-64.