吸能式防爬器骨架截面设计
Cross Section Design of Energy Absorbing Anti-Climber Skeleton
熊天楚 1王旭鹏 2包泽宇2
作者信息
- 1. 宁波市江北区建设工程安全质量管理服务站,浙江 宁波 315000
- 2. 同济大学 铁道与城市轨道交通研究院,上海 201804
- 折叠
摘要
为抑制列车碰撞时的相互爬车程度,列车端部均安装集吸能与防爬功能于一体的吸能式防爬器.然而,现有防爬器的吸能结构大多采用传统工艺制成,其质量较大,设计空间较小,落后于现代轨道交通车辆轻量化的发展理念.近年来,涌现出了大量使用轻便新型材料作为填充物的新型防爬器.虽然这些新型材料单位质量吸收的能量相较于传统材料有了显著提升,但其均需要按照指定的方向发生屈曲才能发挥出最大的吸能能力.本文通过对吸能式防爬器铝合金骨架的设计,研究防爬器载荷特性、占用空间以及变形特性的相对最优解.
Abstract
In order to suppress the degree of mutual climbing during train collisions,the energy absorbing anti-climbers which integrates energy absorption and anti-climbing functions are installed at the end of the train.However,most of the energy absorption structures of the existing anti-climbers are made by using traditional processes,which results in higher quality and smaller design space,lagging behind the development concept of lightweight modern rail transit vehicles.In recent years,a large number of new anti-climbers have emerged that use lightweight new materials as fillers.Although these new materials absorb significantly more energy per unit mass compared to traditional materials,they all need to bend in the specified direction to maximize their energy absorption capacity.In the paper,the relative optimal solution of the load characteristics,occupied space,and deformation characteristics of the energy absorbing anti-climber is studied by designing the aluminum alloy skeleton of the energy absorbing anti-climber.
关键词
吸能式防爬器/列车碰撞/新型材料/有限元分析Key words
energy absorbing anti-climber/train collision/new material/finite element analysis引用本文复制引用
出版年
2024
NETL
NSTL
万方数据