Journal of Mechanical Science and Technology

, Volume 32, Issue 2, pp 559–565 | Cite as

Reducing undesirable vibrations of planar linkage mechanism with joint clearance

  • Zheng Feng Bai
  • Xin Jiang
  • Fei Li
  • Ji Jun Zhao
  • Yang Zhao
Article
  • 2 Downloads

Abstract

An optimization design method is presented to reduce the undesirable vibrations caused by clearance for planar linkage mechanism. A clearance joint is defined and considered a contact/impact force constraint. Contact and impact force models for the clearance joint are established using a normal contact force model based on Hertz model with energy loss and a tangential friction model based on modified Coulomb model with dynamic friction coefficient, respectively. In view of the clearance joint, dynamic equations and optimization method for a planar four-bar mechanism are then presented as an application example. The optimization aims to minimize the maximum absolute acceleration peaks of the mechanism by determining the link lengths of the planar linkage mechanism. Finally, the optimization design is solved by a generalized reduced gradient algorithm. Results show evident decrease in vibration peaks of the mechanism and obvious reduction in the contact forces in the clearance joint, which contribute to a good performance of planar linkage mechanism systems.

Keywords

Clearance joint Planar linkage mechanism Dynamic responses Optimization method 

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Copyright information

© The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Zheng Feng Bai
    • 1
  • Xin Jiang
    • 1
  • Fei Li
    • 1
  • Ji Jun Zhao
    • 1
  • Yang Zhao
    • 1
  1. 1.Harbin Institute of TechnologyWeihaiChina

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