汽车安全与节能学报
汽車安全與節能學報
기차안전여절능학보
JOURNAL OF AUTOMOTIVE SAFETY AND ENGERGY
2013年
3期
257-265
,共9页
张杨%赵幼平%谢庆喜%刘道勇
張楊%趙幼平%謝慶喜%劉道勇
장양%조유평%사경희%류도용
校车%校车标准%被动安全性%防撞性能%仿真与试验
校車%校車標準%被動安全性%防撞性能%倣真與試驗
교차%교차표준%피동안전성%방당성능%방진여시험
school bus%regulations for school buses%passive safety%crashworthiness%simulation and tests
校车的生产及其安全问题受到社会的广泛关注。依照中国2012年颁布的新校车被动安全性标准,作者所在单位,自主研制了长头校车。为研究其正面碰撞、侧面碰撞和后部碰撞工况下的整车结构安全性能,包括车体结构的碰撞力、变形,及假人各部分的加速度、负荷等参数,进行了校车法规中规定的顶压、侧翻类碰撞的仿真与试验。在仿真分析基础上,对关键承载结构,如座椅结构及相关固定件、车架前端吸能区的部件,改进了设计方案。结果表明:仿真结果与试验结果相一致,证明了该仿真结果是可信的;改进后的该校车结构,具有较高的防撞性能,减少了事故对乘员的伤害,因此,能满足被动安全性法规要求。
校車的生產及其安全問題受到社會的廣汎關註。依照中國2012年頒佈的新校車被動安全性標準,作者所在單位,自主研製瞭長頭校車。為研究其正麵踫撞、側麵踫撞和後部踫撞工況下的整車結構安全性能,包括車體結構的踫撞力、變形,及假人各部分的加速度、負荷等參數,進行瞭校車法規中規定的頂壓、側翻類踫撞的倣真與試驗。在倣真分析基礎上,對關鍵承載結構,如座椅結構及相關固定件、車架前耑吸能區的部件,改進瞭設計方案。結果錶明:倣真結果與試驗結果相一緻,證明瞭該倣真結果是可信的;改進後的該校車結構,具有較高的防撞性能,減少瞭事故對乘員的傷害,因此,能滿足被動安全性法規要求。
교차적생산급기안전문제수도사회적엄범관주。의조중국2012년반포적신교차피동안전성표준,작자소재단위,자주연제료장두교차。위연구기정면팽당、측면팽당화후부팽당공황하적정차결구안전성능,포괄차체결구적팽당력、변형,급가인각부분적가속도、부하등삼수,진행료교차법규중규정적정압、측번류팽당적방진여시험。재방진분석기출상,대관건승재결구,여좌의결구급상관고정건、차가전단흡능구적부건,개진료설계방안。결과표명:방진결과여시험결과상일치,증명료해방진결과시가신적;개진후적해교차결구,구유교고적방당성능,감소료사고대승원적상해,인차,능만족피동안전성법규요구。
The production of school buses and its safety problems have been wide spread concerned by public. A new style long-nose school bus was produced by the authors' company according to the new passive safety regulations for school buses promulgated in China in 2012. Simulations and tests were done for the roof strength, rol over under the guide of school bus regulations items to evaluate safety performances, such as the col ision forces and the deformations of vehicle structure, and the accelerations and the loads in some parts of dummies under boundary condition offrontal impact, side impact and rear crash.Based on the simulation analysis, the design scheme was improved for some crucial load bearing structures, such as seat system, and energy-absorbing crush zone.The results show that the consistent of simulation with the experimental results evidences the credibility of simulation analysis;and that the improved school-bus-structure has higher crashworthiness than before. Therefore, itminimizes the damage to passengers in road accidents, and then, satisifes passive safety regulation demands.