Universal joint damage occurred during the operation of a combat vehicle. Damage to the internal bushing and cracks of the rubber cover occurred, and a design change was promoted based on the cause analysis and improvement measures. The failure of the bushing is due to the occurrence of expansion due to fatigue load when the rotation proceeds in the presence of the assembly clearance of the cross joint. In addition, cracks in the rubber cover are caused by the deterioration of the intermetallic rubber surface. Through this failure mechanism analysis, severe durability factors were selected and accelerated durability tests were conducted. In this paper, the final limit life of universal joints can be evaluated through accelerated endurance tests. Furthermore, the endurance life of the product before the change and the endurance life of the product after the change are compared to prove the improvement effect through design changes.
목차
ABSTRACT 1. 서론 2. 고장 메커니즘 분석 2.1 유니버셜조인트 구성 및 기능 2.2 가혹도 인자 선별 2.3 내구성 개선 및 검증 3. 가속 내구시험 3.1 이론적 고찰(다항식 회귀분석) 3.2 실험방법 3.3 내구수명 한계 예측 4. 결론 References
키워드
전투차량유니버셜조인트가속 내구시험내구수명Combat vehicleUniversal jointAccelerating durability testEndurance life
저자
남윤욱 [ Yoon-Wook Nam | Member, Defense Agency for Technology and Quality ]
Corresponding Author
김병현 [ Byung-Hyun Kim | Member, Defense Agency for Technology and Quality ]
박태완 [ Tae-Woan Park | Member, Defense Agency for Technology and Quality ]
김윤석 [ Yun-Seok Kim | Member, Woojin Prcision Company ]