Integrated design method for a multi-objective and multi-parameter cavity structure under the flow field effect

摘要

To solve the structural design and optimization problems of a multi-objective and multi-parameter cavity under the flow field effect, an integrated design method is proposed. Using a comprehensive application of Isight automatic optimization method, coupled with CAD, CAE, and other tools for building blocks, a mapping relationship between the file parameters was created to realize multi-disciplinary coupling. The design parameters that affect the optimization objectives were determined by the design of a test scheme. For multiple optimization objectives under the influence of multiple design parameters of the cavity under the flow field effect, a multi-objective optimization method was used to solve the non-inferior solution set, so that the multiple objectives could achieve comprehensive optimization. To verify the feasibility of the method, the optimal design of a swirling aggregate drying pulverized coal burner was taken as an example, and the multiple design parameters that affect the combustion efficiency and the NO emission optimization objectives were optimized using the integrated design platform. The results show that the combustion efficiency index was improved by 7.7%, and that NO emission was reduced by 2.8% after using the integrated design method, thus verifying the feasibility of method.