2023年第9期汽车工程师·AutomotiveEngineer【摘要】提出并设计了一种膝部模块冲击仪表板的试验方法及试验台架，用于复现实车碰撞中假人腿部与仪表板的碰撞接触情况，针对性地研究膝部与仪表板的碰撞过程，通过高速摄像动态位移计算方法获得膝部在仪表板上的侵入量曲线，并进行插值整合，获取假人腿部伤害指标随膝部在仪表板上侵入量的变化关系，直观地反映与验证仪表板对腿部的碰撞保护性能。关键词：膝部冲击试验方法膝部冲击台架下肢伤害中图分类号：U467.1+4文献标志码：ADOI：10.20104/j.cnki.1674-6546.20220132ResearchandApplicationofKneeCrashTestEquipmentforPassengerCarCaoXiaofeng,LiuHongda,ChenLin,YuChengcheng,KuangFang(NationalAutomobileQualitySupervisionTestCenter,XiangYangDaanAutomobileTestCenterCo.,Ltd.,Xiangyang441000)【Abstract】Atestmethodandtestbenchforkneemoduleimpactingdashboardwereproposedanddesigned,toreproducethecontactofthedummylegwithdashboardinrealvehiclecrash.Thecollisionprocessbetweenthekneeandthedashboardinthecarwasstudiedpertinently,andthekneeinvasioncurveonthedashboardwasobtainedbythehigh-speedcameradynamicdisplacementcalculationmethod,whichwasinterpolatedandintegratedtoobtaintherelationshipbetweentheinjuryindexofthedummylegandtheamountofkneeintrusiononthedashboard,todirectlyreflectandverifythecollisionprotectionperfor⁃manceofthedashboardtotheleg.Keywords:Kneeimpacttestmethod,Kneeimpactplatform,Lowerextremitiesinjuries【引用格式】曹啸峰,刘宏达,陈琳,等.乘用车膝部台架碰撞试验装置的研究与应用[J].汽车工程师,2023(9):39-44.CAOXF,LIUHD,CHENL,etal.ResearchandApplicationofKneeCrashTestEquipmentforPassengerCar[J].AutomotiveEngineer,2023(9):39-44.1前言在2021年版中国新车评价规程（ChinaNewCarAssessmentProgramme，C-NCAP）正面100%重叠和正面50%重叠移动渐进变形壁障碰撞试验中，假人腿部考核指标包括大腿股骨力、膝部滑移、小腿胫骨力和小腿胫骨指数TI[1]。腿部空间狭小且与仪表板发生碰撞时速度较快，因此腿部考核成为容易失分的环节。仪表板的结构材料、固定安装方式对下肢所受伤害影响较大，仪表板对膝部碰撞保护性能的传统验证方式是实车碰撞和滑车动态模拟碰撞，2种方式均存在试验成本高、周期长，难以获取直观数据反...
