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| 面向中级轿车的低成本螺纹剪切吸能结构优化设计 | |
| 引用本文： | 李素霞,雷正保,陈志,王志起.面向中级轿车的低成本螺纹剪切吸能结构优化设计[J].长沙理工大学学报(自然科学版),2009,6(2):51-56. |
| 作者姓名： | 李素霞 雷正保 陈志 王志起 |
| 作者单位： | 1. 长沙理工大学,道路灾变防治及交通安全教育部工程研究中心,湖南,长沙,410004;长沙理工大学,汽车与机械工程学院,湖南,长沙,410004 2. 长沙理工大学,公路工程教育部重点实验室,湖南,长沙,410004 3. 长沙理工大学,道路灾变防治及交通安全教育部工程研究中心,湖南,长沙,410004 4. 长沙理工大学,汽车与机械工程学院,湖南,长沙,410004 |
| 基金项目： | 国家高技术研究发展计划(863计划)，湖南省科技厅科研项目，长沙市科技计划重点项目，长沙理工大学道路灾变防治及交通安全教育部工程研究中心开放基金 |
| 摘 要： | 为确定适合中级轿车的低成本螺纹剪切吸能结构的最优结构参数,对与总重量为2 500 kg轿车匹配的低成本螺纹剪切吸能装置的设计参数进行了优化.利用正交试验方法,基于eta/VPG及LS-DYNA3D软件平台,对其建立模型并进行有限元分析.研究结果表明,螺纹的剪切宽度、剪切高度对最优结果非常敏感,螺纹的剪切力随着螺纹剪切宽度的增大而增大,且螺纹的截面宽度每增加0.1 mm,平均减加速度就增加约50 m/s2;螺纹剪切的位置与螺纹被剪切的金属屑的形成有直接的关系. |
| 关 键 词： | 车辆工程 碰撞 吸能结构 螺纹剪切 优化设计 |
The optimal design of the cutting thread shear type low-cost energy-absorbing structures for medium car |
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| LI Su-xia,LEI Zheng-bao,CHEN Zhi,WANG Zhi-qi.The optimal design of the cutting thread shear type low-cost energy-absorbing structures for medium car[J].Journal of Changsha University of Science and Technology:Natural Science,2009,6(2):51-56. | |
| Authors: | LI Su-xia LEI Zheng-bao CHEN Zhi WANG Zhi-qi |
| Institution: | 1.Engineering Research Center of the Road Disaster Prevention and Mitigation and Transportation Safety;Ministry of Education;Changsha University of Science and Technology;Changsha 410004;China;2.Key Laboratory for Highway Engineering of Ministry of Education;Changsha University of Scienceand Technology;3.School of Automobile and Mechanic Engineering;China |
| Abstract: | In order to get the optimization structural parameters of the cutting the screw thread type low-cost energy-absorbing structures which is appropriate for medium car,Design parameters of low-cost screw shear energy absorption device which is matched to the car(total mass =2 500 kg) is to be optimized.Through using the method of orthogonal design,the model is established and analyzed by the finite element method.The results show that the optimal results are significantly affected by the thread shears width an... |
| Keywords: | vehicle engineering crash absorbing structure cutting thread shear optimal design |
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