CAJ | 학술논문

针对开展驱动桥壳台架加速疲劳试验对删减载荷谱的实际需求,提出了基于有限元虚拟台架试验获得删减载荷谱的试验与分析方法.在有限元仿真分析环境下对某军用特种车辆驱动桥壳进行静强度试验、疲劳寿命预测、应变历程提取以及时间关联损伤分析等工作,得到了用于加速台架试验的删减载荷谱.台架试验表明,使用该方法获得的删减载荷谱能够在准确反映桥壳所受到的损伤同时,大幅缩短台架试验时间,证明了本文所述方法的实用价值.
침대개전구동교각태가가속피로시험대산감재하보적실제수구,제출료기우유한원허의태가시험획득산감재하보적시험여분석방법.재유한원방진분석배경하대모군용특충차량구동교각진행정강도시험、피로수명예측、응변역정제취이급시간관련손상분석등공작,득도료용우가속태가시험적산감재하보.태가시험표명,사용해방법획득적산감재하보능구재준학반영교각소수도적손상동시,대폭축단태가시험시간,증명료본문소술방법적실용개치.
Based on finite element virtual bench test, a new method to acquire the reduced load spectrum, which is used to conduct accelerated fatigue bench test of driving axle housing, is brought up in this paper. After static strength analysis, fatigue life prediction, strain history acquisition and time correlated damage analysis, the reduced load spectrum for the accelerated fatigue bench test of a military special vehicle driving axle housing was acquired under the FE simulation circumstance. The bench test result shows that the reduced load spectrum can significantly shorten the test period, while the damage can be preserved as well, which proves the value of the method.