强爆炸环境下车辆倾覆预测模型研究  

Prediction Model of Vehicle Overturning in a Strong Explosion Environment

作　　者：廖真 刘文祥[1] 程帅[1] 童念雪 殷文骏 张德志[1] LIAO Zhen;LIU Wenxiang;CHENG Shuai;TONG Nianxue;YIN Wenjun;ZHANG Dezhi(Northwest Institute of Nuclear Technology,Xi’an 710024,China)

机构地区：[1]西北核技术研究所,西安710024

出　　处：《现代应用物理》2022年第4期185-191,200,共8页Modern Applied Physics

摘　　要：针对空中强爆炸环境下车辆易产生大幅度偏航、横摆、倾覆和翻滚等问题,结合理想强爆炸空气冲击波环境参数,分析了典型车辆的载荷特性,得到了车辆的爆炸倾覆力/力矩的时间历程函数,建立了强爆炸空气冲击波作用下车辆的单自由度倾覆预测模型,并以某型车辆为例开展了强爆炸冲击波下目标抗倾覆能力评估,进一步分析了车辆的质量、几何特征尺寸及重心高度等因素对车辆倾覆稳定性的影响。研究成果可为车辆防倾覆加固技术措施制定和车辆结构性能优化改进提供参考。To solve the problem that vehicles are prone to yawing,swaying,overturning,and rolling in the air under the strong explosion environment,the load characteristics of typical vehicles under strong explosion environment are analyzed in combination with the ideal environment parameters of strong explosive air blast wave,and the time history function of explosive overturning force or moment of vehicles is obtained.A single degree of freedom overturning prediction model of vehicles under the action of strong explosion blast waves is established.Taking a certain type of vehicle as an example,the anti-overturning ability of the target under the blast wave of strong explosion is evaluated,and the influence of vehicle mass,geometric feature size,and height of gravity on vehicle overturning stability is further analyzed.The research results can provide reference for the formulation technical measures for vehicle anti-overturning reinforcement and the optimization and improvement of vehicle structural performance.

关 键 词：强爆炸效应 空气冲击波 动压 车辆 倾覆预测模型 

分 类 号：O383[理学—流体力学] TJ011[理学—力学]