1. Key Laboratory of Air-driven Equipment Technology of Zhejiang Province, Quzhou University, Quzhou 324000, China 2. Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, Zhejiang University, Hangzhou 310027, China 3. Zhejiang Yonglida CNC Technology Limited Company, Quzhou 324000, China
A hybrid cellular automaton method (HCAM) applied with irregular cell was proposed to realize the thermal topological optimization design for the coupled field of spindle structure in order to adapt to the complex geometrical shape and avoid the problem which the traditional regular rectangular cells could not uniformly cover the design area. The traditional rectangular cell of HCAM was replaced by irregular cell based on the theory of numerical heat transfer. The idea of local mesh refinement was introduced to realize local cell refinement in the area where the stress could be concentrated or strain sharp changed, and the cell size of the whole structure could adaptively change. The comparison analysis results show that the method is feasible. The method can effectively adapt to the complex structure shape, reduce the number of cellular elements and finite element grids, and reduce the difficulty of mapping between cellular elements and finite element grids. The thermal topology optimization design of the temperature-structure field coupling spindle structure under different working conditions was analyzed by using the irregular cell HCAM. Results showed that the final thermal topology optimization results not only reduced the material of spindle, but also improved its thermal characteristics.
Xiao-lei DENG,Ze-feng SHENG,Jiang-lin ZHANG,Xiao-wen LV,Zhong HE,Jian-chen WANG,Jian-zhong FU. Thermal topology optimization design method of spindle under temperature-structure field coupling condition based on irregular cell. Journal of ZheJiang University (Engineering Science), 2020, 54(1): 23-32.
Fig.12Selected intermediate and final topologies of spindle test case based on HCAM
Fig.13Before and after optimization results comparison of spindle test case
Fig.14Performance index and quality ratio history curve of HCAM
Fig.15Spindle test case under heat flux
Fig.16Selected intermediate and final topologies of spindle test case based on HCAM
Fig.17Before and after optimization results comparison of spindle test case
Fig.18Performance index and quality ratio history curve of HCAM
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