Multi-objective topology optimization of aero-engine accessory gearbox case based on compromise programming method

The accessory gearbox is a crucial component of the power transmission system of an aero-engine. The current design of the accessory gearbox case heavily relies on engineering experience, resulting in a bulky and heavy structure. This makes it increasingly challenging to meet the design requirements...

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Bibliographic Details
Published in:Science China. Technological sciences Vol. 68; no. 7; p. 1720601
Main Authors: Huang, Hao, Wang, Zeng, Yang, Ziyi, Liu, Huaiju, Lu, Zehua
Format: Journal Article
Language:English
Published: Beijing Science China Press 01.07.2025
Springer Nature B.V
Subjects:
Aerospace engines
Aircraft
Aviation
Design optimization
Design techniques
Engineering
Gearboxes
Homogenization
Manufacturing
Methods
Multiple objective analysis
Optimization techniques
Product development
Research Paper
Titanium alloys
Topology optimization
Working conditions
compromise programming method
accessory gearbox case
multi-objective topology optimization
structure lightweight design
ISSN:1674-7321, 1869-1900
Online Access:Get full text
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Summary:The accessory gearbox is a crucial component of the power transmission system of an aero-engine. The current design of the accessory gearbox case heavily relies on engineering experience, resulting in a bulky and heavy structure. This makes it increasingly challenging to meet the design requirements of high-power density. This work proposes a multi-objective topology optimization method based on the compromise programming method for the aero-engine accessory gearbox case. By locally thinning the gearbox case wall thickness, the case weight is reduced by 12.7%, and the maximum Mises stress is also reduced by 19.7% compared to the initial design scheme. Furthermore, the maximum vibration acceleration amplitude is reduced by 23.9%. These results provide a new solution for the lightweight design of the aero-engine accessory gearbox case.
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ISSN:1674-7321
1869-1900
DOI:10.1007/s11431-024-2915-3