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A New Pipe Routing Approach for Aero-Engines by Octree Modeling and Modified Max-Min Ant System Optimization Algorithm

Published online by Cambridge University Press:  19 September 2016

Y.-F. Qu*
Affiliation:
Engineering Training CenterShanghai Polytechnic UniversityShanghai, China School of Mechanical EngineeringShanghai Jiaotong UniversityShanghai, China
D. Jiang
Affiliation:
School of Mechanical EngineeringShanghai Jiaotong UniversityShanghai, China
X.-L. Zhang
Affiliation:
School of Mechanical EngineeringShanghai Jiaotong UniversityShanghai, China
*
*Corresponding author (purple1234@163.com)
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Abstract

Aero-engines usually contain a lot of pipes and cables which have an important influence on product performance and reliability. In this paper, a new pipe routing approach for aero-engines is proposed. First, an adaptive octree modeling method is presented according to the characteristics of the layout space. After considering three types of engineering constraints, the total length of pipelines, the total number of bends and the natural frequency of pipelines are modeled as the optimal objective. Then, a Modified Max-Min Ant System optimization algorithm (MMMAS), which uses layered node selection and dynamic update mechanism, is proposed for pipe routing. For branch pipelines, ant colony searches in groups and parallel to improve the solution quality and speed up the convergence greatly. Finally, numerical comparisons with other current approaches in literatures demonstrate the efficiency and effectiveness of the proposed approach. And a case study of pipe routing for aero-engines is conducted to validate this approach.

Type
Research Article
Copyright
Copyright © The Society of Theoretical and Applied Mechanics 2018 

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