A kind of optimization design method for oversize propeller overturning structure

Product trial-manufacture,which aims to test the product performance,is an important step in the traditional development process of new products. But,when applying this method on oversize structural components,it turns out to be a high cost, long design cycle process,and sometime even unachievable. The design process of oversize structural components is faced with a tough challenge on the background of energy crisis,that is to supply sufficient bearing capacity with smaller dead weight. This paper has studied both the size and topology optimization process for oversize propeller overturning structure. After that,it proposed a suggestion for the rapid design and optimization of oversize structural components. With the help of ANSYS,supplemented with HyperMesh′s size optimization and topology optimization,authors optimized the size of initial structure first. In the premise of meeting the stiffness and strength requirements,authors optimized the topology structure and modified the model in the next to reduce its dead weight 77%. This method combined virtual experiment and structure optimization together,which reduced cost and shortened design circle. In the last,it provides technology reference for the oversize structure design.