基于LS-DYNA的移动式压力容器侧翻碰撞分析  

Side-Tumbling Impact Analysis of Mobile Pressure Vessel Based on LS-DYNA

作　　者：郝亮[1] 刘永强[1] 廖英英[1] 郑涛[1] 

机构地区：[1]石家庄铁道大学机械工程学院,河北石家庄050043

出　　处：《石家庄铁道大学学报（自然科学版）》2014年第3期50-54,58,共6页Journal of Shijiazhuang Tiedao University(Natural Science Edition)

基　　金：国家自然科学基金(10932006;11172182;11227201;11202141;11202142);铁道部重点项目(2011J013-A);河北省教育厅项目(Z2011228)

摘　　要：运用有限元和瞬态动力学的有关理论和方法对移动式压力容器动态侧翻的安全性进行了研究。首先采用三维建模软件建立了移动式压力容器运输车的实体模型,然后分别利用有限元分析软件ANSYS和瞬态动力学仿真软件LS-DYNA对模型进行前处理分析和求解计算,得到满载车速为36 km/h时因过度转弯造成侧翻后,压力容器罐体、组合支座、车架及牵引销的动态应力响应情况。计算结果表明:运输车整体吸收冲击的能力较强,车架、支座起到了一定的缓冲作用,但压力容器焊缝的强度需要提高。The theories and methods of finite element and transient dynamics are used to study the safety of dynamic side-tumbling of mobile pressure vessel .The physical model of mobile pressure vessel transporter is es-tablished by using SolidWorks 3 D-modeling software , and then pre-treat analysis and solving are performed by ANSYS finite element analysis software and LS-DYNA transient dynamic software .The dynamic impacting stress response of pressure vessel , combined supports , vehicle frames and traction pin is obtained by side-tumbling on full load at the speed of 36 km/h during over turning .The results show that while the capacity of the whole transporter to absorb impact performs well and vehicle frames and combined supports provide some buffering , the strength of pressure vessel＆#39;s welds needs to be improved .

关 键 词：压力容器 侧翻 碰撞 应力分析 

分 类 号：TH49[机械工程—机械制造及自动化]