铁道科学与工程学报2017，Vol.14Issue(11)：2435-2443,9.
轨道车辆大吨位组合式承载结构测力墙设计方法
Design method of large-tonnage load cell wall with composite support structure for rail vehicles
摘要
Abstract
The crashworthy car-body is an important means to solve the train passive safety protection technology in many countries, while collision test is an important method to evaluate it. The contact areas and impact forces in rail vehicle collision tests are too large for existing load cell walls. In this paper, the effects of the sensor spacing (d), number of sensors (n) and faceplate thickness (h) on the load cell wall responds were evaluated, and a structure design scheme of large-tonnage load cell walls to combine independent-faceplate with holistic-faceplate was proposed. For the test requirements of a main energy-absorbing structure of subway vehicles, the structure design of large-tonnage load cell wall was carried out. By the trolley crash test, the magnitude and distribution of impact force of structure were obtained. Compared with the simulation results, the tendencies were consistent and a difference of less than 5%. The designed structure can meet engineering needs of large-tonnage impact force test of rail vehicles collision test.关键词
测力墙/碰撞响应/影响因素/有限元方法Key words
load cell wall/collision response/influential factors/finite element method分类
交通工程引用本文复制引用
许平,张德洪,邵恒,姚曙光..轨道车辆大吨位组合式承载结构测力墙设计方法[J].铁道科学与工程学报,2017,14(11):2435-2443,9.基金项目
国家自然科学基金资助项目(51675537) （51675537）
国家科技支撑计划资助项目(2015BAG12B00) （2015BAG12B00）
教育部科学技术研究资助项目(113051A) （113051A）
