撞柱工况下客车驾驶室耐撞性分析

发布时间：2018-04-15 19:43

本文选题：安全工程 + 耐撞性　；参考：《安全与环境学报》2016年06期

【摘要】：为了研究单车事故中柱状物对客车驾驶室的影响,采用三维显式有限元分析软件LS-DYNA 3D建立了客车正面撞击刚性柱的数值模拟模型。刚性柱直径依据美国法规FMVSS_214来设定,分别为254 mm(D)、381 mm(1.5D)和508 mm(2D),客车初速度分别设置为30 km/h、40 km/h和50 km/h。基于GB 11551—2014《汽车正面碰撞的乘员保护》和美国法规FMVSS_214《侧面碰撞保护》试验要求,分别开展不同速度(30 km/h、40 km/h、50 km/h)及不同刚性柱直径(254mm(D)、381 mm(1.5D)、508 mm(2D))工况下客车正面撞击刚性柱虚拟仿真试验。选取12个参数来评价刚性柱对客车驾驶室完整性的影响,包括驾驶室左侧6个测量点和驾驶室右侧6个测量点,驾驶室左侧结构6个测量点的最大位移表示驾驶室左侧结构的最大变形量,驾驶室右侧结构6个测量点的最大位移表示驾驶室右侧结构的最大变形量。结果表明:刚性柱直径一定时,初始速度越大,驾驶室完整性越差;初始速度一定时,刚性柱直径越大,驾驶室完整性越好。
[Abstract]:In order to study the influence of columns on the cab of passenger cars in bicycle accidents, a numerical simulation model of passenger cars impacting rigid columns on the front of passenger cars was established by using the three-dimensional explicit finite element analysis software LS-DYNA 3D.The rigid column diameters are set according to the FMVSS_214 regulations of the United States, which are 254mm / d (381mm / L) and 508mm / 2D respectively. The initial speed of passenger cars is set to 30km / s / h 40 km/h and 50km / h respectively.Based on the requirements of GB 11551-2014 "occupant Protection for vehicle frontal impact" and FMVSS_214 "side impact Protection",Virtual simulation tests of passenger car frontal impact rigid column were carried out under different speed of 30 km / h ~ 40 km / h ~ (50 km / h) and different rigid column diameter of 254mm / d ~ 381mm ~ (1.5) / 508mm / d ~ (-1).Twelve parameters were selected to evaluate the influence of rigid columns on the cab integrity, including 6 measuring points on the left side of the cab and 6 points on the right side of the cab.The maximum displacement of the six measuring points of the left structure of the cab represents the maximum deformation of the left structure of the cab, and the maximum displacement of the six measuring points of the right-hand structure of the cab represents the maximum deformation of the right-hand structure of the cab.The results show that when the diameter of rigid column is constant, the greater the initial velocity, the worse the integrity of cab, and the greater the diameter of rigid column is, the better the integrity of cab is.
【作者单位】：厦门理工学院福建省客车先进设计制造重点实验室;厦门理工学院福建省客车及特种车辆研发协同创新中心;
【基金】：国家自然科学基金项目(51305374) 福建省高校杰出青年科研人才基金项目(JA14229) 厦门理工学院对外科技合作专项(E201400300)
【分类号】：U463.81

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