| 杨志安,万继云,李云帅.基于HyperWorks的旅居车双层地板结构优化设计[J].唐山学院学报,2026,39(3):31-36,94 |
| 基于HyperWorks的旅居车双层地板结构优化设计 |
| Optimization Design of Double-Deck Floor Structure for Recreational Vehicles Based on HyperWorks |
| 投稿时间：2025-12-24 |
| DOI：10.16160/j.cnki.tsxyxb.2026.03.006 |
| 中文关键词: 旅居车 双层地板 有限元分析 拓扑优化 轻量化设计 |
| 英文关键词: recreational vehicle double-deck floor finite element analysis topology optimization lightweight design |
| 基金项目: |
|
| 摘要点击次数: 351 |
| 全文下载次数: 262 |
| 中文摘要: |
| 针对某款无副车架自行式旅居车双层地板存在质量冗余的问题,提出了一种基于有限元分析与变密度法的轻量化设计方法。首先,利用HyperWorks建立地板结构的有限元模型,对水平弯曲、极限扭转等5种典型工况进行静力学特性分析,识别出结构的低应力区域;其次,以结构柔度最小为目标、体积减少百分比为约束进行拓扑优化设计,并结合工程工艺要求对地板骨架进行重构;最后,对重构后的骨架模型进行静态强度校核与自由模态分析。结果表明:优化后的地板骨架在满足强度与刚度要求的前提下,质量由34.41 kg降低至23.84 kg,减重幅度达30.7%;同时,其第1阶弹性模态固有频率避开了路面与发动机的激振频率区间,有效避免了共振风险,从而实现了轻量化与动态性能的平衡。 |
| 英文摘要: |
| To address the issue of mass redundancy in the double-deck floor of a certain type of recreational vehicle without a subframe, a lightweight design method based on finite element analysis and the variable density method is proposed. First, the finite element model of the floor structure is established using the HyperWorks, and static characteristic analyses under five typical working conditions (such as horizontal bending, extreme torsion, and etc.) are conducted to identify low-stress areas of the structure. Second, topology optimization design is performed with the goal of minimum structural flexibility and the constraint of volume reduction percentage, and the floor frame is reconstructed based on engineering process requirements. Finally, static strength verification and free modal analysis are carried out on the reconstructed frame model. The results show that, while meeting the strength and stiffness requirements, the mass of the optimized floor frame is reduced from 34.41 kg to 23.84 kg, with a weight reduction of 30.7%. Additionally, the first-order elastic modal natural frequency avoids the excitation frequency range of the road surface and the engine, effectively avoiding resonance risks and achieving a balance between lightweight design and dynamic performance. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|