Development of High Speed Hybrid Ceramic Bearing for Tank Engine Turbocharger
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摘要: 通过确定混合陶瓷轴承设计的目标函数及约束条件,采用功效系数的方法并结合计算机辅助编程完成了轴承的优化设计。对混合陶瓷轴承和滑动轴承的发热量做了对比分析,证明了混合陶瓷轴承发热量明显低于滑动轴承。进行了涡轮增压器混合陶瓷轴承台架实验,实验结果表明,采用混合陶瓷轴承后,涡轮增压器的总效率提高5%～8%,极限转速提高至120000 r/min。Abstract: In this study, the objective function and constraints of the hybrid ceramic bearing mined; the optimal design of the bearing was completed using the efficiency coefficient method design was deter-combining with the computer-aided program. Through the comparative analysis of the heat productivity of hybrid ceramic rolling bearing and sliding bearings, the former's was significantly lower than the latter's, thus the hybrid ceramic rolling beating proved its advantages. The ciency increased 5% ~ 8% bench test of engine turboeharger hybrid ceramic bearing showed that the overall effi-and its limit speed increased up to 120 000 r/min.
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Key words:
- turbocharger /
- high speed /
- ceramic bearing /
- design /
- bench test
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