某液体火箭发动机涡轮泵球轴承故障机理及改进方案(已撤稿）

张文虎; 李文超; 邓四二; 张松; 郑艳伟

doi:10.13224/j.cnki.jasp.2021.02.018

某液体火箭发动机涡轮泵球轴承故障机理及改进方案(已撤稿）

doi: 10.13224/j.cnki.jasp.2021.02.018

基金项目: 中国博士后科学基金(2020M671276); 国家自然科学青年科学基金(51905152)

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- 被引次数: 0
出版历程
- 收稿日期: 2020-07-13
- 刊出日期: 2021-02-28

Failure mechanism and improvement of ball bearing in aliquid rocket engine turbopump

1.
School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang Henan 471003,China
2.
Changzhou Guangyang Bearing Company Limited,Changzhou Jiangsu 213022,China
3.
Technology Centrer,Luoyang Bearing Research Institute Company Limited,Luoyang Henan 471003,China
4.
National United Engineering Laboratory for Advanced Bearing Tribology,Henan University of Science and Technology,Luoyang Henan 471003,China
5.
echnology Centrer,Luoyang Bearing Research Institute Company Limited,Luoyang Henan 471003,China

摘要

摘要: 针对某型号液体火箭发动机涡轮泵球轴承在试验过程中出现的故障,在进行轴承故障机理分析的基础上,对轴承关键结构参数进行了改进,使用滚动轴承动力学分析软件SARB(simulation and analysis of rolling bearings)对比分析了改进前后轴承的接触应力、接触角、旋滚比、保持架打滑率和质心轨迹等性能参数,并通过试验手段验证轴承改进方案和动力学分析结果的正确性。结果表明:轴承结构参数改进后,内接触角减小,保持架打滑率由10%下降到4%,钢球旋滚比和打滑速度均降低,钢球和保持架运转稳定性均提高。
- 液体火箭发动机 /
- 涡轮泵 /
- 球轴承 /
- 故障机理 /
- 动力学
Abstract: In view of the fault of ball bearing in a liquid rocket engine turbopump during the experiment, the failure mechanism of bearing was analyzed, the key structural parameters of bearing were optimized. The contact stress, contact angle, spin-to-roll ratio, slip ratio of cage and orbit trajectory of cage’s centroid were compared and analyzed by means of SARB (simulation and analysis of rolling bearings) software. Experiment was done to verify the improvement and the dynamic analysis results of ball bearing. Results showed that after the structural parameters of the bearing were improved, the contact angle between steel ball and inner ring was reduced, the cage slip rate declined from 10% to 4%, and the spin-to-roll ratio and slip speed were reduced, and the stability of steel ball and cage was improved.
- liquid rocket engine /
- turbopump /
- ball bearing /
- failure mechanism /
- dynamics

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参考文献(26)

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