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| Research on Scheduling Method of Complex Shell Part Manufacturing Shop Floor |
| FU Mei1 , XIE Huai1 , WANG Sunxin2 , SHEN Gaopan3 |
| (1. AECC Xi’an Aviation Power Control Technology Co., Ltd., Xi’an 710077, China; 2. Xi’an University of Technology, Xi’an 710048, China; 3. Northwestern Polytechnical University, Xi’an 710072, China) |
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Abstract The shell part of the aero-engine fuel control system is with the production characteristics of specialized small flow shop, lean manufacturing, operation sequence flexibility, etc. To ensure that the shell parts are completed just in time, taking the earliness/tardiness cost as the optimization objective, a non-permutation flow shop scheduling model with operation sequence flexibility was constructed. An improved genetic algorithm with embedded two-segment encoding and three-stage decoding operators was proposed for scheduling model solution. The results of the practical production cases have verified the effectiveness of the proposed scheduling model and algorithm, in addressing the just-in-time production of complex shell parts. The proposed method also has the potential to be popularized to other shell parts manufacturing fields, such as automobile engines, decelerators, pumps, etc.
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2021, 
