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

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关键词：航空发动机；齿轮传动壳体；热传导；拓扑优化

中图分类号：V233.14

DOI：10.3969/j.issn.1004-132X.2025.07.009 开放科学（资源服务）标识码（OSID）：

Structure-thermal Compliance Collaborative Topology Optimization of Aero-engine Gears Transmission Case Based on Compromise Programming Method

HUANG Hao WANG Zeng² LI Bo² LU Zehual LIU Huaiju1* 1.State Key Laboratory of Mechanical Transmission for Advanced Equipment，Chongqing University，Chongqing，400044 2.AECC Sichuan Gas Turbine Research Establishment，Chengdu，610500

Abstract： Gear transmission case，an important component in aero-engined，endured severe operational conditions and necesstated 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

0 引言

齿轮传动机匣是航空发动机的重要组成部件之一，承担为各类机械系统提供动力的重任，在高温、重载和大惯性的恶劣服役环境下，不断提高机匣的轻量化程度是当下的主要发展趋势之一[1-2]壳体是机匣的重要组成部件，质量超过整个机匣的 1/4 ，其轻量化程度显著影响整个机匣的功率密度。（剩余14269字）