WorldSID 50th假人整体式和分体式胸部垫片的比对分析
2020-10-21朱晓勇陈亚依丁冉冉周鹏
朱晓勇 陈亚依 丁冉冉 周鹏



摘 要:为深入了解WorldSID 50th假人整体式和分体式胸部垫片结构性能的差异,在相同冲击工况下分别对配备两种垫片的WorldSID 50th假人的胸部和腹部进行冲击,分析假人各部位的响应特性。结果表明:在相同冲击条件下,配备分体式垫片的假人所受到的冲击力较小,所产生的胸腹部位移较大,使假人的受力响应更集中于受力的区域附近,力及加速度的传递方面会有所削弱,但总体的差异不大。此研究中针对WorldSID 50th假人整体式和分体式垫片在相同冲击工况下的研究和分析,为后期WorldSID 50th假人胸部垫片的改良和选择提供了基础,具有一定的指导意义。
关键词:汽车安全;WorldSID 50th;假人标定;胸部垫片
Abstract: In order to deeply understand the difference of structural performance between 1-piece pad and split pad of the WorldSID 50th dummy, the thorax of the WorldSID 50th dummy equipped with two kinds of pads were impacted respectively under the same impact condition, and the response characteristics of various parts of the dummy were analyzed. The results show that under the same impact condition, the dummy equipped with 1-piecepad receives less impact force and produces larger thorax and abdomendisplacement, which makes the stress response of the dummy more concentrated in the vicinity of the stress area and weakens the transmission of force and acceleration, but the overall difference is not big. The research and analysis of the 1-piece pad and split pad of the WorldSID 50th dummy under the same impact conditions provide a basis for the laterimprovement and selection of it, and have some guiding significance.
Keywords: Car Safety; WorldSID 50th; Dummy Calibration; Thorax Pad
前言
1 研究背景介紹
1.1 WorldSID 50th假人的研究意义
在碰撞试验中,碰撞假人是一件重要且易损的工具。由于碰撞假人造价高昂,碰撞过程中假人配件的损坏具有不可控性,而配件购买周期较长。因此,在不影响假人性能的情况下改良易损件,降低假人易损件在碰撞过程中的损坏概率对降低碰撞试验的成本,提高假人的使用效率有着极其重要的意义。
2015年,欧盟新车认证程序/中心(European New Car Assessment Programme,Euro-NCAP)的侧面可移动变形壁障碰撞工况和斜柱撞都采用了WorldSID 50th假人[1][2]。中国新车评价规程(China New Car Assessment Program,C- NCAP)自2018版开始,其中的可变形移动壁障侧面碰撞工况也采用了WorldSID 50th假人[3]。而由国内安全标准委员会最新制定的2019版侧面柱碰撞的乘员保护推荐性标准法规,也采用WorldSID 50th假人与ES-2re假人来进行侧面柱碰撞的伤害评价[4]。……
