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《China Mechanical Engineering》 2016-19
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Multi-objectiveDynamic Optimization of Gantry Crane Metal Structure Systems

Yuan Yuan;Yang Zhengmao;Meng Wenjun;Taiyuan University of Science and Technology;Beijing Institute of Technology;  
Focused on the complexity and highly nonlinearity of the structure dynamic characteristics in a gantry crane,considering the uncertainty of dimensional parameters and lifting loads in metal structure design of the gantry crane,aparametric finite element model and experimental design methods were used to establish the relations among the design variables and dynamic parameters of the gantry crane structure systems.The non-dominated sorting genetic algorithm(NSGA-Ⅱ)was used to find the layout optimization of the truss girder internode and their sizes,then the requirements of lowstress,high natural frequency and lightweight were met.On the basis of high-precision response surface approximation model,Monte-Carlo simulation technique was used to evaluate the robustness performance of the optimization program.The application results indicate that the dynamic structure optimization of the gantry crane may be effectively achieved,and the design quality and efficiency are evidently improved.
【Fund】: 国家自然科学基金资助项目(51575370);; 山西省科技攻关资助项目(20140321008-04)
【CateGory Index】: TH213.5;TP18
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