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2001; 17 (3) :16 -238 , see Hua Rong ,franklin et marshall, Jie-Sheng Jiang , Yan Donghuang and so on. Multi- bridge topology optimization constraint . Engineering Mechanics , 2002; 19 (4): 16O see a 1659 Wing Wah . Zheng Jianlong , Xu Feihong . Structural dynamic modification and optimization . Beijing: China Communications Press. 200 210 Song-Tao Wang , Cao capital. Modern seismic design method of [M]. Beijing: China Building Industry Press . 199711GgandhiRV. Structuraloptimizationwithfrequencyconstraints-areview. AIAAJ. . 1993; 31 (12) :2296-23O312YangRJ. Topologyoptimizationanalysisithmultipleconstraints. AmericanSocietyofMechanicalEngineers, DesignEngineeringDivision. 1995; 124:393-398OptimalDynamicDesignofStructuresunderEarthquakeEnvironmentExcitationRongJianhuaJiangJieshengHuDewen. (AutomobileandMechatronicEngr.Dept .. ChangshaCommunicationsUniversityChangsha · 410076) (InstituteofVibrationEngr.. NorthwesternPolytechnicalUniversityXi'an, 710072) (. InstituteofMechatronicandAutomation,tory burch outlet, NationalUniversityofDefenseTechnologyChangsha, 410073) AbstractThispaperconsiderstheextensionandmodificationofESOmethodtOcontroltherandomdynamicresponsesofstructuresunderearthquakeexcitationsuseingstructuralshapeoptimization. First,ropa ed hardy, therandomdynamictheoryisappliedtObuildanexpressionofrandomdynamicresponseconstraintsconsideringengineeringrequirements. Basedonthemodaltrunca-tionmethodofeigenderivativesandcertainapproximation,Tory Burch shoes, asetofformulationsforsensitivitynumbersofmeansquaredrandomdynamicresponsesisderived. Thealgorithmisimplementedwithonoptimizationsoftwarepackage. SeveralexamplesareprovidedtOdemonstratethevalidityandeffectivenessoftheproposedmethod. Keywords: structuralshapeoptimization; finiteelementmethod; evolutionarystructuraloptimization; dynamics of the first Chinese male glory see , researchers,Franklin Marshall pas cher, students in July 1963 . Tel : (0731) 5231572; E-mail; Rongjhua @ yahoo. com. cn 相关的主题文章： franklin & marshall Packaging industry will be the franklin & marshall Piezoelectric actuators in str Franklin Marshall pas cher North who won the Natio |
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