| 司敬庭， 闫俊霞.汽车门锁的棘轮棘爪轻量化设计[J].轻工机械,2021,39(2):88-92 |
| 汽车门锁的棘轮棘爪轻量化设计 |
| Lightweight Design of Car Door Lock Ratchet Pawl |
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| DOI：10.3969/j.issn.1005 2895.2021.02.016 |
| 中文关键词: 汽车门锁 棘轮棘爪 轻量化 变密度法 拓扑优化 |
| 英文关键词:car door lock ratchet pawl lightweight variable density method Topology optimization |
| 基金项目: |
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| 中文摘要: |
| 为了实现汽车门锁的轻量化，课题组将拓扑优化方法应用到汽车门锁的设计中。建立棘轮棘爪的有限元模型，分析确定可优化区域；在满足实际要求的情况下，结合基于变密度法的拓扑优化方法，以整体质量最小为目标，得到棘轮棘爪的最佳传力路径和材料分布。经验证优化后的棘轮棘爪满足强度设计要求，与原结构相比质量减小33.6%。该研究可应用于同类汽车零部件的轻量化设计，具有一定的工程应用价值。 |
| 英文摘要: |
| In order to achieve the lightweight of automobile door lock, the topology optimization method was applied to the design of automobile door lock. The finite element model of ratchet pawl was established, and the optimizable region was analyzed and determined. Under the condition of meeting the actual requirements, combined with the topology optimization method based on variable density method, the optimal force transmission path and material distribution of ratchet pawl were obtained with the goal of minimizing the overall mass. It is verified that the optimized ratchet pawl meets the strength design requirements, and its mass is reduced by 33.6% compared with the original structure. The research can be applied to lightweight design of similar automobile parts and has certain engineering application value. |
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