Design of Bracket of Oil Tank Assembly in Aero-Engine Based on Topology Optimization

被引：0

作者：

Wang Y. ^{[1
]}

Zhou C.-H. ^{[1
]}

Zhou Y. ^{[1
]}

Xu S.-L. ^{[2
]}

Wang B. ^{[1
]}

Li Y.-W. ^{[3
]}

Liu Z.-H. ^{[3
]}

机构：

[1] Department of Engineering Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian

[2] School of Energy and Power Engineering, Dalian University of Technology, Dalian

[3] AECC Shenyang Engine Research Institute, Shenyang

来源：

Tuijin Jishu/Journal of Propulsion Technology | 2022年 / 43卷 / 02期

关键词：

Bracket of oil tank assembly; Local stiffness; Relative displacement; Sensitivity analysis; Topology optimization;

D O I：

10.13675/j.cnki.tjjs.210154

中图分类号：

学科分类号：

摘要：

The bracket is an important part of the oil tank assembly in aero engine, which is used to connect and fix the band in the oil tank assembly. However, the existing bracket design will cause eccentric tension on the band connected to the bracket. This will lead to a high level of structure stress and fatigue damage. A topology optimization method considering the local stiffness of the structure is proposed, which improved the overall stiffness of the support while taking into account the local stiffness. Through this method, the stiffness distribution of the bracket become more reasonable, thereby the stress level of the band connected to it is reduced. The weight of the bracket designed by this topology optimization method is the same as the original structure, the maximum deformation is reduced by 17.7%. The band connected to the bracket is no longer subjected to eccentric tension, the stress distribution is more uniform, and the maximum stress is reduced by 30.84%. The effectiveness of the topology optimization method considering the local stiffness in the design of the bracket is verified. © 2022, Editorial Department of Journal of Propulsion Technology. All right reserved.

引用

页码：201 / 211

页数：10

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