摘要
目前铁路危险货物罐式集装箱的结构强度冲击试验中,试验充装介质的重心高度与实际运输介质的重心高度一致性难以实现。针对上述问题,应用Lagrange方程建立冲击试验中罐式集装箱的力学模型,对其进行受力分析;并用ANSYS软件建立液化天然气罐式集装箱的仿真模型,设计3种充装工况,对不同充装重心高度下的仿真模型进行有限元计算,验证了力学分析结论。研究结果表明:冲击试验中罐式集装箱框架的应力分布及应力值与罐内充装货物的重心高度基本无关,仅与充装货物的重量有关。
The difference of height of gravity center between filling medium in the structural strength impact test and that in the actual transport has been a difficult problem in railway dangerous goods tank containers.In response to this problem,a mechanical model without loss of generality in the impact test was built based on Lagrange equation.Then taking the liquefied natural gas tank container for example,a finite element simulation model was built by ANSYS.The study results have shown that the distribution regularities of stress on the framework and the maximum stress are almost not relevant to the height of gravity center of cargo,but only related to the filling weight.4tabs,3figs,10 refs.
出处
《长安大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2015年第S1期269-273,共5页
Journal of Chang’an University(Natural Science Edition)
基金
中央高校基本科研业务费专项资金项目(2014JBM061)
关键词
交通工程
铁路运输
罐式集装箱
重心高度
LAGRANGE方程
有限元计算
traffic engineering
railway transportation
tank container
height of gravity center
Lagrange equation
finite element simulation
