Pipe routing and clamp layout for aeroengine are NP-hard computational problems and complex engineering design processes. Besides space constraints and engineering rules, there are assembly constraints between pipes and clamps, which usually lead to repeatedly modifications between pipe routing and clamp layout designs. In order to solve the problems of assembly constraints and design coupling between them, an integrated optimization method for pipe routing and clamp layout is proposed. To this end, the MOALO (multiobjective ant lion optimizer) algorithm is modified by introducing the levy flight strategy to improve the global search performance and convergence speed, and it is further used as a basic computation tool. The integrated optimization method takes pipe and clamp as a whole system and then solves the Pareto solution set of pipe-clamp layouts by using improved MOALO, where the pipe path, clamp position, and rotation angle are selected as decision variables and are further optimized. Inspired by engineering experience, a clamp-based pipe path mechanism considering regular nodes is established to deal with assembly constraint problem. The proposed method comprehensively considers engineering rules of pipe routing and clamp layout and realizes the overall layout optimization of pipe-clamp system while guaranteeing the assembly constraints between pipes and clamps. Finally, some numerical computations and routing examples are conducted to demonstrate the feasibility and effectiveness of the proposed method.

中文翻译：

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基于改进MOALO的航空发动机管道布线和夹具布局的综合优化

航空发动机的管道布线和夹具布局是 NP 难计算问题和复杂的工程设计过程。除了空间限制和工程规则外，管道和卡箍之间还存在装配约束，这通常会导致管道布线和卡箍布局设计之间的重复修改。为解决装配约束和设计耦合问题，提出了一种管道布设与卡箍布置一体化优化方法。为此，MOALO（多目标蚁狮优化器）算法通过引入征税飞行策略进行修改，以提高全局搜索性能和收敛速度，并进一步用作基础计算工具。综合优化方法将管夹作为一个整体，采用改进的MOALO求解管夹布置的Pareto解集，其中选择管径、夹钳位置和旋转角度作为决策变量并进一步优化。受工程经验的启发，建立了一种考虑规则节点的基于夹具的管道路径机制来处理装配约束问题。该方法综合考虑了管道布线和卡箍布置的工程规律，在保证管道和卡箍之间的装配约束的同时，实现了管箍系统的整体布局优化。最后，通过一些数值计算和路由实例来证明所提出方法的可行性和有效性。选择夹具位置和旋转角度作为决策变量并进一步优化。受工程经验的启发，建立了一种考虑规则节点的基于夹具的管道路径机制来处理装配约束问题。该方法综合考虑了管道布线和卡箍布置的工程规律，在保证管道和卡箍之间的装配约束的同时，实现了管箍系统的整体布局优化。最后，通过一些数值计算和路由实例来证明所提出方法的可行性和有效性。选择夹具位置和旋转角度作为决策变量并进一步优化。受工程经验的启发，建立了一种考虑规则节点的基于夹具的管道路径机制来处理装配约束问题。该方法综合考虑了管道布线和卡箍布置的工程规律，在保证管道和卡箍之间的装配约束的同时，实现了管箍系统的整体布局优化。最后，通过一些数值计算和路由实例来证明所提出方法的可行性和有效性。针对装配约束问题，建立了一种考虑规则节点的基于夹具的管道路径机制。该方法综合考虑了管道布线和卡箍布置的工程规律，在保证管道和卡箍之间的装配约束的同时，实现了管箍系统的整体布局优化。最后，通过一些数值计算和路由实例来证明所提出方法的可行性和有效性。针对装配约束问题，建立了一种考虑规则节点的基于夹具的管道路径机制。该方法综合考虑了管道布线和卡箍布置的工程规律，在保证管道和卡箍之间的装配约束的同时，实现了管箍系统的整体布局优化。最后，通过一些数值计算和路由实例来证明所提出方法的可行性和有效性。