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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Related citation:AN Wei-guang,ZhouLin,AnHai.Structure buckling and non-probabilistic reliability analysis of supercavitating vehicles[J].Journal of Harbin Institute Of Technology(New Series),2009,16(4):561-569.DOI:10.11916/j.issn.1005-9113.2009.04.022.
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Structure buckling and non-probabilistic reliability analysis of supercavitating vehicles
Author NameAffiliation
AN Wei-guang College of Aerospace and Civil Engineering,Harbin Engineering University,Harbin 150001,China 
ZhouLin College of Aerospace and Civil Engineering,Harbin Engineering University,Harbin 150001,China 
AnHai College of Aerospace and Civil Engineering,Harbin Engineering University,Harbin 150001,China 
Abstract:
To perform structure buckling and reliability analysis on supercavitating vehicles with high velocity in the submarine,supercavitating vehicles were simplified as variable cross section beam firstly.Then structural buckling analysis of supercavitating vehicles with or without engine thrust was conducted,and the structural buckling safety margin equation of supercavitating vehicles was established.The indefinite information was described by interval set and the structure reliability analysis was performed by using non-probabilistic reliability method.Considering interval variables as random variables which satisfy uniform distribution,the Monte-Carlo method was used to calculate the non-probabilistic failure degree.Numerical examples of supercavitating vehicles were presented.Under different ratios of base diameter to cavitator diameter,the change tendency of non-probabilistic failure degree of structural buckling of supercavitating vehicles with or without engine thrust was studied along with the variety of speed.
Key words:  supercavitating vehicles  critical buckling load  non-probabilistic failure degree  Monte-Carlo method
DOI：10.11916/j.issn.1005-9113.2009.04.022
Clc Number:U461
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