重庆大学学报2025，Vol.48Issue(5)：15-27,13.DOI:10.11835/j.issn.1000-582X.2025.05.002
机械-惯性载荷作用下航发齿轮传动壳体拓扑优化
Topology optimization of aero-engine gear transmission case considering mechanical-inertial loadings
摘要
Abstract
Under harsh service conditions and complex loading environments,gearbox cases in aero-engines are required to be both structurally robust and lightweight.A key design challenge is balancing weight reduction with control of bearing bore misalignment,which is an important performance metric.To address this issue,a topology optimization method for the gear transmission case is proposed,considering both mechanical and inertial loads.The approach is based on the solid isotropic material with penalization(SIMP)interpolation model.Inertial load effects on attached components are incorporated into the optimization model,which imposes constraints on case stress,critical bearing bore misalignment,and volume fraction of the optimized region.The objective is to minimize the weighted structural compliance of the case under multiple loading conditions.The proposed method achieves a 7.1%reduction in case weight and simultaneously decreasing maximum von Mises stress,total deformation,and critical bearing bore misalignment by 7.1%,3.1%and 11.1%,respectively.关键词
航空发动机/附件机匣/结构设计/齿轮传动/拓扑优化Key words
aero-engine/accessory gearbox/structural design/gear transmission/topology optimization引用本文复制引用
黄昊,夏静贵,吴俊佑,卢泽华,刘怀举..机械-惯性载荷作用下航发齿轮传动壳体拓扑优化[J].重庆大学学报,2025,48(5):15-27,13.基金项目
国家自然科学基金资助项目(52322504) （52322504）
重庆市杰出青年科学基金资助项目(CSTB2023NSCQ-JQX0016).Supported by National Natural Science Foundation of China(52322504),and the Chongqing Outstanding Youth Science Foundation(CSTB2023NSCQ-JQX0016). （CSTB2023NSCQ-JQX0016）
