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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Veröffentlicht in:Science China. Technological sciences Jg. 68; H. 7; S. 1720601
Hauptverfasser: Huang, Hao, Wang, Zeng, Yang, Ziyi, Liu, Huaiju, Lu, Zehua
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Beijing Science China Press 01.07.2025
Springer Nature B.V
Schlagworte:
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
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Abstract 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.
AbstractList 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.
ArticleNumber 1720601
Author Yang, Ziyi
Huang, Hao
Wang, Zeng
Liu, Huaiju
Lu, Zehua
Author_xml – sequence: 1
  givenname: Hao
  surname: Huang
  fullname: Huang, Hao
  organization: State Key Laboratory of Mechanical Transmission for Advanced Equipment, Chongqing University
– sequence: 2
  givenname: Zeng
  surname: Wang
  fullname: Wang, Zeng
  organization: Aero Engine Corporation of China Sichuan Gas Turbine Research Establishment
– sequence: 3
  givenname: Ziyi
  surname: Yang
  fullname: Yang, Ziyi
  organization: Aero Engine Corporation of China Sichuan Gas Turbine Research Establishment
– sequence: 4
  givenname: Huaiju
  surname: Liu
  fullname: Liu, Huaiju
  email: huaijuliu@cqu.edu.cn
  organization: State Key Laboratory of Mechanical Transmission for Advanced Equipment, Chongqing University
– sequence: 5
  givenname: Zehua
  surname: Lu
  fullname: Lu, Zehua
  organization: State Key Laboratory of Mechanical Transmission for Advanced Equipment, Chongqing University
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Keywords compromise programming method
accessory gearbox case
multi-objective topology optimization
structure lightweight design
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Snippet 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...
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SubjectTerms 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
Title Multi-objective topology optimization of aero-engine accessory gearbox case based on compromise programming method
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