机械结合面动态特性测试与仿真

吴波; 王增全; 王旭兰; 胡定云; 王曼; 冯慧华

doi:10.13433/j.cnki.1003-8728.2016.0228

机械结合面动态特性测试与仿真

doi: 10.13433/j.cnki.1003-8728.2016.0228

1.
中国北方发动机研究所, 天津 300400;
2.
北京理工大学, 北京 100081

基金项目:

国家"863"基金项目(2012AA111709)资助

详细信息

作者简介:
吴波(1978-),副研究员,博士,发动机结构可靠性,wubo-cneri@163.com

计量
- 文章访问数: 312
- HTML全文浏览量: 32
- PDF下载量: 8
- 被引次数: 0
出版历程
- 收稿日期: 2014-04-03
- 刊出日期: 2016-02-05

Test and Simulation of Dynamic Characteristics of Joint Interface in Machine

1.
China North Engine Research Institute, Tianjin 300400, China;
2.
Beijing Institute of Technology, Beijing 100081, China

摘要

摘要: 机械系统的振动特性多依赖于其结合面的动态特性,以动力总成系统的螺栓联接结合面为研究对象,设计了模拟机械结合面动态特性的非标试验测试装置,经过多轮次的试验,确定了结合面切、法向刚度和阻尼的测试流程和参数识别方法,获得了接触压力、结合面材料和接触面状态等因素对结合面动态特性的影响规律。提出了薄层单元结合面等效计算模型,并基于试验测试数据,建立了考虑结合面影响的等效动力学模型。变速箱壳体组合模态的计算结果表明,该等效计算模型具有较高的计算精度和良好的工程适用性。
- 结合面 /
- 动力总成 /
- 模态分析 /
- 等效模型
Abstract: Vibration properties of many assembled mechanical systems depend on frictional damping in bolted joints. In this paper,the bolt joint interfaces of power-train are studied, and the nonstandard test device is designed. The testing process and parameter identification methods of shear stiffness, normal stiffness and damping are confirmed through many-times experiments. The influence law of dynamic characteristic of joint interface by contact press, material and contact states is obtained. Based on the test data, the thin film element equivalent mechanical model is proposed and the gear-box shell equivalent calculation model which takes into account the interface effect is constructed. The modal analysis results indicate that the equivalent models have high precision and better engineering applicability.
- equivalent model /
- joint interface /
- modal analysis /
- power-train

HTML全文

参考文献(15)

[1]	廖伯瑜,周新民,尹志宏.现代机械动力学及其工程应用:建模、分析、仿真、修改、控制、优化[M].北京:机械工业出版社,2004 Liao B Y, Zhou X M, Yin Z H. Modern machine dynamic mechanical and engineering application:modeling, analysis, simulation, modify, control and optimization[M]. Beijing:Machine Industry Press, 2004(in Chinese)
[2]	Mayer M H, Gaul L. Segment-to-segment contact elements for modelling joint interfaces in finite element analysis[J]. Mechanical Systems and Signal Processing, 2007,21(2):724-734
[3]	Bograd S, Schmidt A, Gaul L. Joint damping prediction by thin layer elements[C]//Proceedings of IMAC XXVI:A Conference & Exposition on Structural Dynamics, Orlando, Florida, USA, 2008
[4]	卫海桥,舒歌群.内燃机活塞拍击表面振动与燃烧噪声的关系[J].内燃机学报,2004,22(1):23-32 Wei H Q, Shu G Q. Study on the relation between piston impinging vibration and combustion noise of internal combustion engines[J]. Transactions of CSICE, 2004,22(1):23-32(in Chinese)
[5]	Gaul L, Schmidt A. Structural damping in mechanical joint connections[J]. MTZ Worldwide, 2012,73(5):60-64
[6]	Hess D P, Davis K. Threaded components under axial harmonic vibration, part 1:experiments[J]. Journal of Vibration and Acoustics, 1996,118(3):417-422
[7]	Hess D P, Sudhirkashyap S V. Dynamic loosening and tightening of a single-bolt assembly[J]. Journal of Vibration and Acoustics, 1997,119(3):311-316
[8]	El-Zahry R M. Optimum design of preloaded bolted joint under harmonic excitation[J]. Journal of Sound and Vibration, 1986,108(3):455-470
[9]	Foster C D, Mottershead J. A method for improving finite element models by using experimental data:application and implications for vibration monitoring[J]. International Journal of Mechanical Science, 1990,32(3):191-203
[10]	Ren Y, Beards C F. Identification of effective linear joints using coupling and joint identification techniques[J]. Journal of Vibration and Acoustics, 1998,120(2):331-338
[11]	陈学前,杜强,冯加权.螺栓连接非线性振动特性研究[J].振动与冲击,2009,28(7):196-198 Chen X Q, Du Q, Feng J Q. The study on the nonlinear vibration characteristic of bolt-joints[J]. Journal of vibration and shock, 2009,28(7):196-198(in Chinese)
[12]	Loibnegger B, Rainer G, Bernard L, et al. An integrated numerical tool for engine noise and vibration simulation[R]. SAE Technical Paper 971992, 1997
[13]	郝志勇,陈达亮.S1100型柴油机气缸体强度及优化分析[J].农业机械学报,2005,36(9):28-31 Hao Z Y, Chen D L. Structural strength analysis and lightweight design of S1100 diesel engine block[J]. Transactions of the Chinese Society for Agricultural Machinery, 2005,36(9):28-31(in Chinese)
[14]	Yoshimura T, Emoto Y. Steering and suspension system of a full car model using fuzzy reasoning based on single input rule modules[J]. International Journal of Vehicle Autonomous Systems, 2003,1(2):237-255
[15]	Su Q Z, Yin R P. Dynamic characteristic analysis for cylinder block of S100 diesel engine[C]//Proceedings of the 11th IMAC, 1993