自然科学版 英文版
自然科学版 英文版
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中南大学学报(英文版)

Journal of Central South University

Vol. 24    No. 1    January 2017

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Thermo-structural analysis on evaluating effects of friction and transient heat transfer on performance of gears in high-precision assemblies
Hossein Golbakhshi, Moslem Namjoo

Department of Mechanical Engineering of Biosystems, University of Jiroft, Jiroft 78671-61167, Iran

Abstract:The high precision assemblies with considerable radial interference should be accompanied by heating and cooling processes. However, the mechanical properties of metals are greatly affected by thermal operations. So, for evaluating the stress distribution and distortion of teeth profiles in a gear/shaft assembly, a transient thermal analysis is necessary for finding the change in mechanical properties. The friction on the contact surface is another important parameter in interaction of the gear with the shaft. Evaluating the gear stress and deformation fields for several modes of heat transfer and friction coefficients showed that the maximum radial or tangential stresses on contact surface of the joint may have more than 8% increase by increasing friction coefficient; while the intensity of heat transfer at cooling stage has lower effect on stress distribution.

 

Key words: friction coefficient; transient heat transfer; stress field; distortion of teeth; concurrent analyses

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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