| 苏姝丹,曾岩,李刚.多工况下牵引车驱动桥壳多目标优化设计[J].计算力学学报,2024,41(6):977~983 |
|
| 
码上扫一扫！ |
| 多工况下牵引车驱动桥壳多目标优化设计 |
| Multi-objective optimal design of drive axle housing of tractor under multiple load cases |
| 投稿时间：2023-05-15 修订日期：2023-10-16 |
| DOI：10.7511/jslx20230518001 |
| 中文关键词: 驱动桥壳 拓扑优化 轻量化 疲劳寿命 多目标优化 |
| 英文关键词:drive axle housing topological optimization lightweight fatigue life multi-objective optimization |
| 基金项目:自然科学基金面上项目(12372119)资助. |
|
| 摘要点击次数: 92 |
| 全文下载次数: 73 |
| 中文摘要: |
| 面向牵引车双后桥平衡悬架驱动桥壳强度设计和结构轻量化问题,本文对桥壳进行多工况拓扑优化设计使高应力区材料分布更佳;建立设计变量与响应间的Kriging代理模型,以重量和最大应力为优化目标进行多目标尺寸优化,为桥壳优化问题提供一系列参考方案,如优化方案中桥壳本体质量降低6.5%,制动和牵引工况的最大应力降低约10%,同时焊缝疲劳寿命提升23.0%,有效满足了桥壳对疲劳强度和轻量化的设计需求。 |
| 英文摘要: |
| Dealing with the strength-based and lightweight design of a tractor drive axle housing with a double-rear tandem suspension,this paper performed a topology optimization under multiple load cases to get a better material distribution in high stress areas;Then Kriging surrogate models between variables and responses were established,with weight and stress being the multiple objectives.The results of this paper offers a range of reference designs in axle housing optimization,for example,the optimal design reduces weight of the axle housing shell by 6.5%,the maximum stresses under braking and traction conditions by about 10%,and the fatigue life of welds is increased by 23.0%,which can effectively meet the needs of lightweight design and fatigue life of the axle housing. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
|
