Dynamic properties of bolted joints characterized by functionally gradient virtual materials method

被引：0
|
作者：
Li L. [1 ]
Wang J.-J. [1 ]
Shi X.-H. [1 ]
Chen Z.-Q. [2 ]
Cai A.-J. [1 ]
机构：
[1] School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an
[2] No.723 Institute of CSIC, Yangzhou
来源：
Shi, Xiao-Hui (13811382617@163.com) | 1600年 / Nanjing University of Aeronautics an Astronautics卷 / 33期
关键词：
Bolted joints; Contact pressure model; Dynamic properties; Virtual functional gradient material;
D O I：
10.16385/j.cnki.issn.1004-4523.2020.03.011
中图分类号：
学科分类号：
摘要：
A functionally gradient virtual material method is proposed to characterize the dynamic characteristics of bolted joints, which can improve the modeling precision of bolted joints. Firstly, a polynomial function is used to fit the contact pressure distribution of bolted joints obtained by the finite element method. The division criterion of the virtual material layer is proposed based on the pressure distribution of bolted joints. Then, a functionally gradient virtual material model of bolted joints is established to analyze the relationship between the properties of gradient virtual material and the contact radius of the effective contact area. Finally, the properties of each layer of virtual material are respectively determined when bolted joints are divided into two layers, three layers and four layers. Meanwhile, the functionally gradient virtual material model and the connection structure are coupled to construct the interface model by using the APDL in ANSYS. Frequency response function of the overall structure from the proposed model is compared to experimental measurements. It is shown that the solution of the functionally gradient virtual material model is closest to the experimental result when the bolted joint is characterized as four layers of virtual material, and the maximum error occurs at the third-order natural frequency with an error of 0.44%. © 2020, Nanjing Univ. of Aeronautics an Astronautics. All right reserved.
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页码：525 / 532
页数：7
相关论文
共 20 条
  • [1] YOSHIMURA M., Computer-aided design improvement of machine tool structure incorporating joint dynamics data, Annals of the ICRP, 28, 1, pp. 241-246, (1979)
  • [2] HUANG Yumei, FU Weiping, DONG Lixin, Et al., Research on the dynamic normal characteristic parameters of joint surface, Chinese Journal of Mechanical Engineering, 29, 3, pp. 74-78, (1993)
  • [3] FU Weiping, HUANG Yumei, ZHANG Xueliang, Et al., Experimental investigation of dynamic normal characteristics of machined joint surfaces, Journal of Vibration and Acoustics, 122, 4, pp. 393-398, (2000)
  • [4] ZHANG Guangpeng, HUANG Yumei, SHI Wenhao, Et al., Predicting dynamic behaviours of a whole machine tool structure based on computer-aided engineering, International Journal of Machine Tools & Manufacture, 43, pp. 699-706, (2003)
  • [5] TOL S, OZGUVEN H N., Dynamic characterization of bolted joints using FRF decoupling and optimization, Mechanical Systems and Signal Processing, 54-55, pp. 124-138, (2015)
  • [6] DU Fei, HONG Jun, XU Ying, An acoustic model for stiffness measurement of tribological interface using ultrasound, Tribology International, 73, pp. 70-77, (2014)
  • [7] LI Ling, CAI Anjiang, RUAN Xiaoguang, Et al., Equivalent linear method for Hysteresis nonlinear of Bolted joints, Journal of Vibration Engineering, 28, 4, pp. 560-566, (2015)
  • [8] LI Ling, CAI Anjiang, RUAN Xiaoguang, Et al., Stiffness modelling and characteristics analysis of bolted joints, Journal of Vibration Engineering, 30, 1, pp. 1-8, (2017)
  • [9] ZHANG Xueliang, CHENG Yonghui, WEN Shuhua, Et al., The model of normal contact stiffness of joint interfaces incorporating elastoplastic deformation mechanism, Journal of Vibration Engineering, 28, 1, pp. 91-99, (2015)
  • [10] TIAN Hongliang, LI Bin, LIU Hongqi, Et al., A new method of virtual material hypothesis-based dynamic modeling on fixed joint interface in machine tools, International Journal of Machine Tools & Manufacture, 51, pp. 239-249, (2011)
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