摘要
在机队相继萌生疲劳裂纹的间隔比q小于1的假设下,建立了一种修正的DTR计算模型,并用算例进行了验证。验证结果表明:修正DTR计算模型与原DTR计算模型的DTR计算值相对差随疲劳裂纹萌生条数的增加而增大;随相继裂纹萌生间隔比的增加,两种计算模型的DTR计算值相对差减小。
Under the assumption that the separation rate q of successive occurrence of fatigue cracks in a fleet is less than 1 ,the paper eslablishes an improved DTR algorithm and verifies it with an example, The result indicates that the relative difference of the DTR computing value between the improved DTR and the original DTR enlarges with the increase of the number of fatigue cracks and lessens with the increase of q.
出处
《中国民航学院学报》
2006年第3期35-37,共3页
Journal of Civil Aviation University of China
基金
中国民用航空总局科技基金项目(20030802)
关键词
损伤容限额定值
疲劳裂纹
检出概率
damage tolerance rating
fatigue crack
detection probability
