| 防撞护栏最大动态变形量敏感性分析 |
| |
| 引用本文： | 裴大军,张望鹏,邓宝,龚帅,杨福宇,亢寒晶,闫书明.防撞护栏最大动态变形量敏感性分析[J].公路工程,2020(2):224-228. |
| |
| 作者姓名： | 裴大军 张望鹏 邓宝 龚帅 杨福宇 亢寒晶 闫书明 |
| |
| 作者单位： | 湖北武穴长江公路大桥有限公司;湖南省交通科学研究院有限公司;北京华路安交通科技有限公司 |
| |
| 摘 要： | 碰撞参数在试验组织中会产生误差,为了解护栏最大动态变形量对碰撞参数的敏感程度,建立了车辆碰撞某金属梁柱式护栏有限元仿真模型,模型中考虑了碰撞过程中路基对护栏的影响,采用平均敏感度系数作为护栏敏感度的评判标准。结果表明,撞击速度是影响防撞护栏最大动态变形量的最敏感因素,该研究成果对制定碰撞试验误差范围具有指导意义。
|
| 关 键 词： | 敏感性分析 防撞护栏 有限元 最大动态变形量 |
Sensitivity Analysis of Maximum Dynamic Deformation of Collision Barrier |
| |
| PEI Dajun,ZHANG Wangpeng,DENG Bao,GONG Shuai,YANG Fuyu,KANG Hanjing,YAN Shuming.Sensitivity Analysis of Maximum Dynamic Deformation of Collision Barrier[J].Highway Engineering,2020(2):224-228. |
| |
| Authors: | PEI Dajun ZHANG Wangpeng DENG Bao GONG Shuai YANG Fuyu KANG Hanjing YAN Shuming |
| |
| Institution: | (Hubei Wuxue Yangze River Highway Bridge Co.,Ltd, Huanggang, Hubei 435499, China;Hunan Communications Research Insititute Co. ,Ltd. ,Changsha, Hunan 410015, China;Beijing Hualuan Traffic Technological Co. ,Ltd. , Beijing 100070,China) |
| |
| Abstract: | Collision parameter errors exist in the test procedure.In order to analyze the sensitivity of the barrier maximum dynamic deflection to collision parameters,the finite element simulation models of vehicles impacting the metal beam-column barrier were built,and influences of the roadbed on barriers were considered.The average sensitivity coefficient was adopted as the evaluation standard of the barrier sensitivity.The results indicate the impact velocity is the most sensitive factor affecting the maximum dynamic deformation of the crash barrier.The research achievements have guiding significance for setting the error range of the collision test. |
| |
| Keywords: | sensitivity analysis crash barrier finite element maximum dynamic deformation |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
