자동변속기 윤활용 기어펌프의 가속 수명시험 설계에 관한 연구

Study on Accelerated Life Test Design for a Gear Type Lubrication Pump for Automatic Transmission

  • 박종원 (한국기계연구원 신뢰성평가센터) ;
  • 정동수 (한국기계연구원 신뢰성평가센터)
  • Park, Jong-Won (Reliability Assessment Center, Korea Institute of Machinery & Materials) ;
  • Jung, Dong-Soo (Reliability Assessment Center, Korea Institute of Machinery & Materials)
  • 투고 : 2012.07.25
  • 심사 : 2012.09.15
  • 발행 : 2012.09.25

초록

A gear type lubrication pump is an essential component of the powertrain and has a major role for supplying oil to the gears and bearings in automatic transmission with a hydraulic clutch. Therefore, the durability test code design of lubrication pump is very important to ensure the reliability of the entire transmission and the vehicle. In this study, the design process for the life testing of lubrication pump has been generalized by four steps. The four design steps of the life testing of lubrication pump consist of the configuration of load spectrum, rain flow counting and analysis of load level, the equivalent damage assessment and test code generation. In fact, the load spectrum should be obtained from the field operating condition but that kind of data is the top secret of manufacturers. This is not open to the public in general. So we could use the artificially simulated load spectrum instead of field obtained one and focused on the development of the general process for designing the life test of a gear type lubrication pump. Reliability goals for lubrication pump, pressure, torque, temperature and load spectrum, if present, as appropriate for the given test conditions, accelerated life testing for the lubrication pump can be designed by the developed design steps.

키워드

참고문헌

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