結構動力可靠性研究

1、分類號UDC密級編號工學碩士學位論文結構動力可靠性研究碩士研究生：劉旭華指導教師：陳衛(wèi)東教授學位級別：工學碩士學科、專業(yè)：固體力學所在單位：建筑工程學院論文提交日期：2005年12月論文答辯日期：2006年1月學位授予單位：哈爾濱工程大學y93G877哈爾濱工程大學碩士學位論文AbstractDuringtheperiodoftheirserves，manyengineeringstructuresareinevitabletoendu

2、redynamicforcesandthedynamicfailurewillbetheirmainfailuremodesTherefore，itisimportantbothontheoryandpracticalapplicationtoperformthedynamicreliabilityanalysisforthestructuresThereliabilityanalysisaimistOobtaintheaccurate

3、failureprobabilityorthereliabilityindexandthepresentthesiscarriesontheattemptsintheaboveaspectsTherandomvariablesaredescribedwithMonteCar／osamplingtechniqueandthedynamicrespondsareobtainedwithdynamicfiniteelementsmethoda

4、ndtherespondsprobabilitydenskyfunctionsarcimitatedwiththemaximumentropymethodSothesafetymarginequationcarlbeestablishedandthefailureprobabilityandtheprobabilityindexCallbeobtainedThemainresearchworksofthethesisareasfollo

5、wing：1CombinedwithMonteCarlosamplingtechniqueandthemaximumentropymethod，therandomdynamicanalysisproblemofstructurehasbeensuccessfullysolved，withwhichoneextremelyeffectivenumericalanalysismethodtOobtainallkindsofstructure

6、s’respondsundertherandompowersisprovided2Themethodofthegoodnessoffitisgiventotesttheimitatedprobabilitydensityfunction，whichmakesthemaximumentropymethodmoreperfect3Basedonthedynamicmechanicsbasictheories，thefiniteelement

7、sprogramtocalculatethedynamicproblemisauthorized，withwhichthestructurecharacteristiccanbeanalyzedandtheprobabilityanalysiscanbecarriedonInbrief，thedynamicprobabilitymodeofs1121cturesisestablished，andtheresearchinthisthes