| 胡铭鑫1，2 ，孔令成 1，2 ，赵聪1，2 ，张浩1，2 ，毛宏图 1，2.航空发动机主轴轴承剥落扩展试验[J].航空发动机,2024,50(1):124-128 |
| Experimental for Spalling Propagation of Aeroengine Spindle Bearings |
| DOI： |
| Key Words:aeroengine spindle bearings spalling propagation experimental research monitoring mode |
|
| 摘要点击次数: 733 |
| 全文下载次数: 601 |
| Abstract:The spalling propagation experimental research for aeroengine spindle bearing has been developed in order to exploring the
spalling limit of bearing. The form of bearing damage and the current research status on fatigue peeling damage both demestically and
internationally have been introduced. The initial spalling state of the test bearing and the basic situation of the tester have been introduced.
The lubrication condition and monitoring mode of the bearing have been defined. The test scheme has been formulated and deceloped
according to the real working conditions and load spectrum of the engine. The tendency of spalling bearing has been monitored by periodic
disassembly The monitoring results of metal chip content， bearing temperature and rotor vibration during the test have been analyzed. The
test results show that the bearing with small area peeling can continue working in the 18h of testing time， and the temperature rise is not be
changed significantly， the temperature of the outer ring of the bearing remain at 150～190℃ for most of time， but the content of metal
chips and the time domain amplitude of rotor vibration are increasing， the growth of metal chips is about 9500 and the time domain
amplitude of rotor vibration is about 600g. The monitoring results of various parameters have important reference value for subsequent
engine ground test or flight. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
