Effects of wear on dynamic characteristics and stability of linear guides

Effects of wear on dynamic characteristics and stability of linear guides Wear between elements significantly affects the dynamics of a linear guide. Several existing contact stiffness models were used to investigate the dynamic behaviors of linear guide systems. However, the wear of linear guides has been rarely investigated due to difficult prediction of contact load and wear mechanism. To solve this problem, an improved wear prediction method was developed in this study by considering the coupling effects of wear and rolling contact. To ensure the high quality and high precision of long-age service, a final contact stiffness and piecewise-nonlinear dynamic model were established to analyze the dynamic behaviors of a linear guide system. Moreover, the influencing factors in wear rates such as running distance and vertical load were evaluated. To analyze the effects of wear on the dynamics of the system, basic properties such as frequency response, Lyapunov exponents, time histories, phase plane diagram and Poincare mapping were analyzed using numerical simulations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Meccanica Springer Journals

Effects of wear on dynamic characteristics and stability of linear guides

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Publisher
Springer Netherlands
Copyright
Copyright © 2017 by Springer Science+Business Media Dordrecht
Subject
Physics; Classical Mechanics; Civil Engineering; Automotive Engineering; Mechanical Engineering
ISSN
0025-6455
eISSN
1572-9648
D.O.I.
10.1007/s11012-016-0605-x
Publisher site
See Article on Publisher Site

Abstract

Wear between elements significantly affects the dynamics of a linear guide. Several existing contact stiffness models were used to investigate the dynamic behaviors of linear guide systems. However, the wear of linear guides has been rarely investigated due to difficult prediction of contact load and wear mechanism. To solve this problem, an improved wear prediction method was developed in this study by considering the coupling effects of wear and rolling contact. To ensure the high quality and high precision of long-age service, a final contact stiffness and piecewise-nonlinear dynamic model were established to analyze the dynamic behaviors of a linear guide system. Moreover, the influencing factors in wear rates such as running distance and vertical load were evaluated. To analyze the effects of wear on the dynamics of the system, basic properties such as frequency response, Lyapunov exponents, time histories, phase plane diagram and Poincare mapping were analyzed using numerical simulations.

Journal

MeccanicaSpringer Journals

Published: Jan 10, 2017

References

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