한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2004년도 춘계학술대회 논문집
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- Pages.714-719
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- 2004
철도차량 차륜의 구름접촉피로의 실험적 연구
Experimental study on rolling contact fatigue of railway wheel
- 발행 : 2004.06.01
초록
Railway wheels and axles belong to the most critical components in railway vehicles. The service conditions of railway vehicles became more severe in recent years due to the increase of speed. Therefore, a more precise evaluation of wheel/set life and safety has been requested. One of the major reasons of railway wheel damage is a contact zone failure by wheel/rail contact. In this paper, we conducted a rolling contact fatigue test for wheels using a specimen of wheel/rail. the behavior of hardeness and residual stress below the contact surface of the test pieces in the fatigue process were analyzed. Finally, the relation between fatigue life and contact pressure was obtained.
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