CAJ | 학술논문

本文对一起台架可靠性试验中的柴油机曲轴断裂故障，运用宏微观断口分析、金相组织检验、有限元计算等手段对断裂原因进行综合分析，结果表明：该曲轴断裂是典型的弯曲疲劳断裂，主要原因是制造过程问题，同时有必要增大凸台R角，进一步提高强度。
본문대일기태가가고성시험중적시유궤곡축단렬고장，운용굉미관단구분석、금상조직검험、유한원계산등수단대단렬원인진행종합분석，결과표명：해곡축단렬시전형적만곡피로단렬，주요원인시제조과정문제，동시유필요증대철태R각，진일보제고강도。
This paper analyzes the fracture failure of the diesel engine crankshaft during reliability test with the macro and micro - fracture analysis, metallographic inspection, and finite element analysis. The results show that the crankshaft fracture is typically caused by fatigue, which is involved in manufacturing, and that it is necessary to increase the R comer for strength improvement.