G70B列车油罐液固耦合模态分析  

Fluid-solid coupling modal analysis on G70B train oil tank

作　　者：赵勇[1] 张若京[1] 孙利民[2] 

机构地区：[1]同济大学航空航天与力学学院,上海200092 [2]郑州大学工程力学系,河南郑州450002

出　　处：《计算机辅助工程》2007年第3期119-122,共4页Computer Aided Engineering

基　　金：高等学校博士学科点专项基金(20060247016)

摘　　要：针对列车油罐因列车提速导致液固耦合作用突出的问题,运用ANSYS软件对轻型油罐车G70B型罐体的液固耦合模态响应进行实例分析和计算;建立车载油罐的液固耦合系统有限元模型;对轻型油罐车G70B型罐体进行在不同贮液比时的液固耦合模态分析,得出固有频率和模态振型图.结果表明:不同的贮液比对罐体结构的模态特性影响很大,油罐内液体质量越多,油罐结构耦合振动频率越低.分析结果可以为油罐的结构设计提供参考.With the fluid-solid coupling of train oil tank due to train speed increase, the fluid-solid coupling modal analysis of G70B oil tank is calculated by ANSYS. The finite element model of fluid-solid coupling system is set up. The fluid-solid coupling modal analysis of G70B oil tank is done for light oil tank train under different kinds of loads and its natural frequency and modal shapes are obtained. The resuits indicate that the liquid has a great effect on dynamic property of tank structure, and the more liquid there is in the tank, the lower coupling frequency the tank structure is. The analysis helps to the structural design of oil tank.

关 键 词：液固耦合系统 模态分析 固有频率 模态振型 车载容器 有限元 ANSYS 

分 类 号：U272.4[机械工程—车辆工程] O351[交通运输工程—载运工具运用工程]