Accurate simulation method for contact stress of aero-engine bearing

被引：0
|
作者：
Ma Y. [1 ,2 ]
Wang Y. [1 ]
Gong P. [3 ]
Hong J. [1 ,2 ]
机构：
[1] School of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing
[2] Collaborative Innovation Center for Advanced Aircraft Engine, Beijing
[3] Research Institute of Bearing, Harbin Bearing Company Limited, Aviation Industry Corporation of China, Harbin
来源：
Hangkong Dongli Xuebao/Journal of Aerospace Power | 2017年 / 32卷 / 08期
关键词：
Accurate simulation; Contact stress; Dynamic model; Main shaft bearing of aero-engine; Thermal stress;
D O I：
10.13224/j.cnki.jasp.2017.08.025
中图分类号：
学科分类号：
摘要：
The combination of steady state thermal analysis and dynamic contact mechanics analysis was used to improve the calculation accuracy, and the stress distribution was corrected by thermal analysis, meanwhile the variation characteristics of the bearing were obtained. The research shows that, the maximum dynamic contact stress is located on the bearing ball surface, while the stress of the inner is the minimum. The contact stress of bearing has obvious dynamic response characteristics, while its distribution has a random variation. The contact stress, which increases with the rotational speed and the axial load, is composed of the principal stress and the shear stress. © 2017, Editorial Department of Journal of Aerospace Power. All right reserved.
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页码：2000 / 2008
页数：8
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