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| 基于HyperMesh的6125型大客车正碰安全性研究 |
| Study on Front Impact Safety of Type 6125 Passenger Car Based on HyperMesh |
| 投稿时间：2021-01-21 |
| DOI：10.16018/j.cnki.cn32-1650/n.202102004 |
| 中文关键词: 客车 正面碰撞 安全性 结构改进 有限元 |
| 英文关键词: bus frontal impact safety structure improvement finite element |
| 基金项目: |
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| 中文摘要: |
| 以6125型客车为研究对象，利用CATIA软件对该型客车车身骨架进行建模，通过HyperMesh软件进行网格划分，建立有限元模型，应用非线性有限元软件 LSDYNA对该客车有限元模型进行正面碰撞仿真计算。参照欧盟ECE R94《正面碰撞乘员保护》标准和美国FMVSS208《碰撞的乘员保护》标准中对碰撞的变形和碰撞安全性的要求，提出增加前段地板骨架及车架(司机地板区域)纵梁厚度以及增加前围保险杠和吸能盒的改进方案。结果表明，该优化方案达到了行业标准的要求，可为大客车碰撞事故分析及改进提供参考。 |
| 英文摘要: |
| Taking 6125 bus as the research object, CATIA software was used to model the body frame of the bus, and HyperMesh software was used to partition the mesh to establish the finite element model. The nonlinear finite element software LSDYNA was used to simulate the frontal impact of the finite element model of the bus. Refer to the requirements of ECE R94 "Frontward Impact Occupant Protection" standard of the European Union and FMVSS208 "Frontward Impact Occupant Protection" standard of USA for collision deformation and collision safety, the improvement scheme of increasing the thickness of the front floor frame and the longitudinal beam of the frame(driver floor area), as well as the front bumper and the energy absorbing box is proposed. The results show that the optimization scheme meets the requirements of the industry standard, and provides a reference for the analysis and improvement of the bus collision accident. |
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