A new hybrid reliability index definition and its application to the structure buckling reliability analysis of supercavitating projectiles

	A new hybrid reliability index definition and its application to the structure buckling reliability analysis of supercavitating projectiles
	Zhou, L.; Z. Li; J. Han and N. Zhang
	2016
发表期刊	Journal of Shanghai Jiaotong University (Science)
卷号	21 期号:4
摘要	As structure buckling problems easily arise when supercavitating projectiles operate with high underwater velocity, it is necessary to perform structure buckling reliability analysis. Now it is widely known that probabilistic and non-probabilistic uncertain information exists in engineering analysis. Based on reliability comprehensive index of multi-ellipsoid convex set, probabilistic uncertain information is added and transferred into non-probabilistic interval variable. The hybrid reliability is calculated by a combined method of modified limit step length iteration algorithm (MLSLIA) and Monte-Carlo method. The results of engineering examples show that the convergence of MLSLIA is better than that of limit step length iteration algorithm (LSLIA). Structure buckling hybrid reliability increases with the increase of ratio of base diameter to cavitator diameter, and decreases with the increase of initial launch velocity. Also the changes of uncertain degree of projectile velocity and cavitator drag coefficient affect structure buckling hybrid reliability index obviously. Therefore, uncertain degree of projectile velocity and cavitator drag coefficient should be controlled in project for high structure buckling reliability. 2016, Shanghai Jiaotong University and Springer-Verlag Berlin Heidelberg.
文章类型	期刊
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/57491
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhou, L.,Z. Li,J. Han and N. Zhang. A new hybrid reliability index definition and its application to the structure buckling reliability analysis of supercavitating projectiles[J]. Journal of Shanghai Jiaotong University (Science),2016,21(4).
APA	Zhou, L.,Z. Li,&J. Han and N. Zhang.(2016).A new hybrid reliability index definition and its application to the structure buckling reliability analysis of supercavitating projectiles.Journal of Shanghai Jiaotong University (Science),21(4).
MLA	Zhou, L.,et al."A new hybrid reliability index definition and its application to the structure buckling reliability analysis of supercavitating projectiles".Journal of Shanghai Jiaotong University (Science) 21.4(2016).

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