关键词: 管路布局, 斑鬣狗算法, 支臂, 遗传算法, 多目标优化

Abstract:  An automatic aircraft tank pipeline layout method was proposed based on the improved spotted hyena algorithm to address the problem of internal aircraft tank pipeline path planning. To improve the global search ability and convergence rate of the spotted hyena algorithm， the diffusion search mechanism was introduced to spread the optimal solution in the iteration processes， and then it was introduced to randomly search in the optimal solution to improve the algorithms convergence rate. The grid method was used to build the laying space mathematical model and the pipeline layout optimization mathematical model was established with the shortest pipeline path， the pipeline bending angle and the pipeline bending radius were as constraints. Furthermore， considering the pipeline arms layout problem， with arm length and arm posture as the arm layout double target optimization function， using a genetic algorithm（NSGA-Ⅱ）to code the initial individual， design cross， variation rules， to solve the Pareto solution of the pipeline arm layout sets， and to obtain the pipeline arm layout scheme. Finally， numerical examples and pipeline laying simulation were used to validate the effectiveness of the proposed method. 

Key words: pipeline layout, spotted hyena algorithm, bracket, genetic algorithm, multi-objective optimization