基于折衷规划法的航发齿轮传动壳体结构热柔度协同拓扑优化

doi:10.3969/j.issn.1004-132X.2025.07.009

摘要/Abstract

摘要： 齿轮传动机匣是航空发动机的核心组件，常面临极端恶劣的服役环境和轻量化的设计需求。目前的机匣壳体结构设计依赖工程经验，难以满足航空发动机的高功率密度设计需求。基于折衷规划法提出一种考虑热传导性能的壳体多目标拓扑优化方法，以轴承孔错位量和优化区域的体积分数为约束条件开展拓扑优化，实现了壳体减重6.1%，最大von Mises应力减小5.2%，最高温度降低2.3%，轴承孔中心错位量减小9.3%。

关键词: 航空发动机, 齿轮传动壳体, 热传导, 拓扑优化

Abstract: Gear transmission case, an important component in aero-engined, endured severe operational conditions and necessitated lightweight construction amidst stringent design prerequisites. The existing structural design of the gear transmission cases, which mainly depended on engineering experience, struggles to satisfy the high power density design requirements of aero-engines. Based on the compromise programming method, a multi-objective topology optimization method was proposed for the cases considering the heat conduction performance. By imposing constraints on the central misalignment of bearing holes and the volume fraction of the optimization domain, the proposed strategy facilitated topology optimization. The resultant design achieves a 6.1% decrease in case weights, accompanied by reductions of 5.2% in peak von Mises stress, 2.3% in maximum temperature and a significant improvement of 9.3% in the central misalignment of bearing holes.

Key words: aero-engine, gear transmission case, heat conduction, topology optimization

中图分类号:

V233.14

黄昊1, 王曾2, 李波2, 卢泽华1, 刘怀举1. 基于折衷规划法的航发齿轮传动壳体结构热柔度协同拓扑优化[J]. 中国机械工程, 2025, 36(07): 1471-1478.

HUANG Hao1, WANG Zeng2, LI Bo2, LU Zehua1, LIU Huaiju1. Structure-thermal Compliance Collaborative Topology Optimization of Aero-engine Gears Transmission Case Based on Compromise Programming Method[J]. China Mechanical Engineering, 2025, 36(07): 1471-1478.

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链接本文: https://www.cmemo.org.cn/CN/10.3969/j.issn.1004-132X.2025.07.009

https://www.cmemo.org.cn/CN/Y2025/V36/I07/1471

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