CAJ | 학술논문

应用疲劳寿命理论计算、有限元静/动强度分析及故障件失效分析等方法，对保险阀导向杆断裂问题进行机理分析，结果表明：保险阀导向杆断裂故障为导向杆设计动强度不足，导致导向杆双向弯曲应力集中区疲劳断裂。依据分析结果对保险阀结构进行了改进，改进结构的分析及试验结果，验证了改进措施有效，同时也证明了分析方法的正确性和可靠性。分析方法对结构件动强度及疲劳寿命分析具有一定的参考价值。
응용피로수명이론계산、유한원정/동강도분석급고장건실효분석등방법，대보험벌도향간단렬문제진행궤리분석，결과표명：보험벌도향간단렬고장위도향간설계동강도불족，도치도향간쌍향만곡응력집중구피로단렬。의거분석결과대보험벌결구진행료개진，개진결구적분석급시험결과，험증료개진조시유효，동시야증명료분석방법적정학성화가고성。분석방법대결구건동강도급피로수명분석구유일정적삼고개치。
The fracture fault of the oriented-pole was analyzed using the fatigue life theory, the FEA of static strength and dynamic intensity, and the observation of microscopic morphology. The results shown the fracture of the oriented-pole resulted from the unsubstantial dynamic intensity that made the pole fatigue in the coupled vibration stress region. Based on the analysis result, the structure of the oriented-pole was improved and a test was carried out on the efficiency of the improved structure. The test results shown the improved structure was effectual, which testified the correctness and the reliability of the analysis way in the text from another point of view.