【摘 要】
：
为评估飞机服役过程中出现的多元件损伤,根据元件疲劳特性建立了随机失效模型,基于元件失效寿命计算广布疲劳损伤平均行为,从而确定飞机检查修理时刻.通过五隔框机身段算例验证所提模型的有效性,研究模拟次数及概率分布模型对多元件损伤结构检修时间的影响.根据七隔框机身段疲劳试验结果进行多元件损伤评估,给出结构检查修理时刻.结果表明,评估结果与算例数据吻合良好,正态回归模型能够更好地模拟结构失效特性.
【机 构】
：
上海机电工程研究所,上海,201109;上海航天电子技术研究所,上海,201109;南京航空航天大学航空学院,南京,210016;中国飞机强度研究所,西安,710065
论文部分内容阅读
为评估飞机服役过程中出现的多元件损伤,根据元件疲劳特性建立了随机失效模型,基于元件失效寿命计算广布疲劳损伤平均行为,从而确定飞机检查修理时刻.通过五隔框机身段算例验证所提模型的有效性,研究模拟次数及概率分布模型对多元件损伤结构检修时间的影响.根据七隔框机身段疲劳试验结果进行多元件损伤评估,给出结构检查修理时刻.结果表明,评估结果与算例数据吻合良好,正态回归模型能够更好地模拟结构失效特性.
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