基于Steiner最小树和改进多目标萤火虫算法的航空发动机分支管路自动布局  

Automatic Branch Pipe Layout for Aero-engine Based on Steiner Minimum Tree and Improved Multi-objective Firefly Algorithm

作　　者：张禹[1,2] 范志刚 于润泽 石可 鹿浩 张明 巩亚东[1] ZHANG Yu;FAN Zhigang;YU Runze;SHI Ke;LU Hao;ZHANG Ming;GONG Yadong(School of Mechanical Engineering and Automation,Northeastern University,Shenyang 110819;Key Laboratory of Vibration and Control of Aero-Propulsion System,Ministry of Education,Northeastern University,Shenyang 110819)

机构地区：[1]东北大学机械工程与自动化学院,沈阳110819 [2]东北大学航空动力装备振动及控制教育部重点实验室,沈阳110819

出　　处：《机械工程学报》2024年第12期365-372,共8页Journal of Mechanical Engineering

基　　金：中央高校基本科研业务费专项资金(N180313010,N2403016);辽宁省自然科学基金(2023-MS-090)资助项目。

摘　　要：针对目前航空发动机分支管路布局效果欠佳问题,提出一种基于Steiner最小树和改进多目标萤火虫算法的航空发动机分支管路自动布局方法。在该方法中,首先结合Steiner最小树理论,以管路长度最短、弯头数最少和分支点数最少为优化目标,建立分支管路布局多目标优化数学模型。进一步,基于Steiner最小树性质、约束违反度和拥挤度理论,并融合混合更新策略和精英策略,提出了应用于航空发动机分支管路布局的改进多目标萤火虫算法,从而实现了航空发动机分支管路自动布局。最后,通过标准测试函数和实例研究验证了所提方法的可行性和有效性。Aiming at the issue that the branch pipe layout for aero-engine is poor at present,an automatic branch pipe layout method for aero-engine based on Steiner minimum tree and improved multi-objective firefly algorithm is proposed.In the method,based on Steiner minimum tree theory,a multi-objective optimization mathematical model for aero-engine branch pipe layout is firstly built,which takes the shortest pipe length,the least number of elbows and the least number of branch points as optimization objectives.Then,combining with the hybrid update strategy and elite strategy,an improved multi-objective firefly algorithm for aero-engine branch pipe layout is proposed based on Steiner minimum tree property,constraint violation theory and crowding degree theory,which realizes the automatic layout of aero-engine branch pipe.Finally,the feasibility and effectiveness of the proposed method are verified by standard test function and case study.

关 键 词：航空发动机 分支管路 自动布局 Steiner最小树 多目标萤火虫算法 

分 类 号：V23[航空宇航科学与技术—航空宇航推进理论与工程]