文档介绍：OriginalArticleDesignandapplicationoflightweightmulti-objectivecollaborativeoptimizationforaparametricbody-in-whitestructureChuan-QingWang,Deng-FengWangandShuaiZhangProcIMechEPartD:JAutomobileEngineering2016,(2)273–288IMechE2015Reprintsandpermissions::,thelower-ordermodalfrequenciesofabody-in-whitestructureandthefullfrontal-crashandside---objectiveoptimizationisdividedintonon-safetypartsoptimization,frontal-crashsafetypartsoptimizationandside-impactsafetypartsoptimization,putationallymoreefficientthanoptimizingthenon-safetyparts,thefrontal-crashsafetypartsandtheside-,thelightweightmulti-objectivecollaborativeoptimizationdesignofthebody-in-whitestructureisconductedforapassengercarbyoptimizingthethick-ness,thebeamsectionshapeandthesize;whilemaintainingtheperformancesofthestaticbendingandtorsionalstiff-nesses,thelower-ordermodalfrequencydecreasestolessthan5%oftheinitialvalue,andthefull-frontal-crashandside--citparametrictechnology,-in-whitestructureandtheinitialstructure,(%).%;thebendingandtorsionalfrequenciesincreasedalittle,andthefrontal-crashandside--in-whitestructure,lightweightdesign,multi-objectivecollaborativeoptimizationDatereceived:27October2014;ac