The suspension system of special tracked vehicle is using hydraulic piston pump to adjust track tension and control vehicle position change. During operation of vehicle on rough field, failure of suspension control was occurred due to the piston pump failure. In this study, investigation was performed to analyze the cause of hydraulic piston pump failure. Main reason of piston pump failure is strong peak pressure and insufficient structural safety of shoe. The static stress analysis considering peak pressure was performed to find the weak point of the shoe. From the result, it is confirmed that pass hole of lubrication is the weakest point. Improved piston shoe shows 27% decrease in maximum stress and satisfies the design target which is less than 40% of stress margin.
목차
Abstract 1. 서론 2. 유압펌프 손상확인 3. 피스톤 슈 손상원인 분석 4. 피스톤 슈 응력해석 4.1. 해석 조건 4.2 개선 전 피스톤 슈 4.3 개선 후 피스톤 슈 5. 결론 References
키워드
Finite Element Analysis(유한요소해석)Swash Plate Piston Pump(사판식 유압펌프)Piston Shoe(피스톤 슈)
저자
김현민 [ Hyun-Min Kim | Member, Defense Agency for Technology and Quality ]
Corresponding Author
윤효진 [ Hyo-Jin Yoon | Defense Agency for Technology and Quality ]
서현수 [ Hyun-Soo Seo | Defense Agency for Technology and Quality ]