聲輻射薄板的優(yōu)化方法研究.pdf

1、申請上海交通大學碩士學位論文聲輻射薄板的優(yōu)化方法研究聲輻射薄板的優(yōu)化方法研究專業(yè)：專業(yè)：機械設計及理論碩士生：碩士生：丁舒濤導師：導師：蔣偉康教授上海交通大學機械與動力工程學院上海交通大學機械與動力工程學院2010年2月第II頁OPTIMIZEAPPROACHFTHEACOUSTICTHINSHELLPLANEABSTRACTTopologyoptimizationofacousticstructurehasreceivedmemere

2、searchattentionsinthepastyears.Theresearchesnowarealmostontheapproachesfthethicknesslayoutoptimizationonlyafewftheribbedplane.mostofthemareoptimizationsfthethicknessheightoftheribfewfthelayoutoftherib.Inthispaperthethick

3、nessribbedplanelayoutoptimizationbasedonEvolutionaryStructuralOptimizationarestudied.EvolutionaryStructuralOptimization(ESO)wasasimpleconcepteasyusingmethod.ThispaperimprovestheESOmethodbasedonthefeaturesoftheacousticpro

4、blemcombinesitwiththeSAmethod.Theacousticradiationoptimizationftheribbedplanethethicknesslayoutofathinplanearesolvedbythiscombinedmethodtheresultsshowit’sfeasibleeffective.AsshowedintheresearchESOhasadvantagetodealwithth