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| Design of Fixture Locating Layout for Thin-Walled Part Based on Kriging and FPA |
| LI Cheng1 , WANG Zhongqi2 , TONG Hua1 , TIAN Shaogang1 |
| (1. Xi’an ASN Technology Group Co., Ltd., Xi’an 710065, China; 2. School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China) |
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Abstract Owing to the excessive time cost of finite element simulation calculation for thin-walled parts fixture locating layout design, a optimization design method for thin-walled parts fixture positioning based on Kriging surrogate model and flower pollination algorithm (FPA) is proposed. With a given number, the fixture locating layout is treated as the design variable, while the strain energy of thin-walled parts under self-weight as the optimization target. Firstly, the optimal Latin hypercube sampling and finite element analysis are used to generate training samples. Secondly, the training sample is used to construct the fixture positioning optimization agent based on Kriging surrogate model. And thirdly, FPA is applied to search the optimal solution for thin-walled parts fixture locating layout. Finally, the optimization design of the curve thin-walled parts fixture layout under “4–2–1” locating principle is taken as an example to verify the effectiveness of the proposed method.
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2020, 
