潛器耐壓殼體結(jié)構(gòu)可靠性分析.pdf

1、IlUllrrllllrllrrllrljIFrflrllflrjlllllrllIjrflflllY1437933分類號：——UDC：——工學(xué)碩士學(xué)位論文密級：——編號：——潛器耐壓殼體結(jié)構(gòu)可靠性分析碩士研究生：指導(dǎo)教師：學(xué)位級別：學(xué)科、專業(yè)：所在單位：論文提交日期：論文答辯日期：學(xué)位授予單位：梁超王曉天教授工學(xué)碩士工程力學(xué)船舶工程學(xué)院2008年1月2008年3月哈爾濱工程大學(xué)哈爾濱工程大學(xué)碩士學(xué)位論文AbstractThecylin

2、dricalshellismorewidelyusedinDesignandBuildingofShipandOceanStIucturebecauseofalargenumberofmarineresourcesunexploitedunderdeepseaaswellasthedevelopingtechnologyoftheunderwatervehicleisveryimportanttodefenseandcivilianas

3、pects，especiallyakindofunderwatervehiclewhichishighperformanceThereforeithasagreatsignificancetodevelopacylindricalshellwithlightweightandeconomyBasedontheabove，thestabilityandstrengthofcylindricalshellundertmiformloadis

4、theoreticallyconcluded，andanewstabilitymethodoftheshellunderbendingmomentisestablished，aswellastheimportanceofreliabilityengineeringisexplained，threereliabilitymethodsalsodiscussedindetail；Fourofthemethodsofsensitivityfa

5、ctoraleshowedcompletelyinordertomakecalculationefficiently；ItworksverywelltorespectivelyuseFirstordersecond—momentmethod，JCmethodandMontecarloSimulationmethodtoanalyzecylindricalshellthroughestablishingfailuremodesandred

6、ucinguncertainfactors；Thethreedesignmethodofqualitymanagementisreferredasanewwaytoimprovethereliabilityofthestructure，butIndex9CantbegotTothisend，threedesignmethodandthereliabilityofthefnstordersecondmomentmethodareunite

7、dtoformanewone，whichhasthebothadvantageofreliabilitymethodandThreeDesignmethodandalsocanpre—setIndexBKeywords：cylindricalshell；stability；optimizingdesign；reliability；threedesign；reliabilityindex；thefirstordersecondmoment