摘要
以往的研究认为,铁路敞车运送散粒体的静侧压力沿散体货物高度是三角形的线性分布,然而计算的结果往往与实际结果不符。随着计算机技术的发展,模拟分析、数值计算成为重要的研究方法。基于颗粒流理论,构建敞车散粒体模型,模拟分析不同容重和不同内摩擦角的散体对敞车静侧压力的影响,将模拟值与库仑力计算值进行比较,验证了模拟分析应用于计算敞车静侧压力的可行性。
Previous studies have shown that the static side pressure of the granular goods transported by railwaytruck is a triangular linear distribution along the height of the loose particles, but the calculated results are ofteninconsistent with the actual results. With the development of computer technology, simulation analysis and nu-merical calculation become important research methods. Based on particle flow theory, the model of railway truckgranule material was established. The static side pressure of granular goods with different bulk density and dif-ferent internal friction angle was simulated and analyzed. Then, the simulation value was compared with coulombforce, and the reliability of the simulation results was verified by experiments.
作者
何华
陈兴强
刘春景
He Hua;Chen Xingqiang;Liu Chunjing(School of Mechanical and Vehicle Engineering,Bengbu University,Bengbu 233030,China)
出处
《华东交通大学学报》
2018年第5期17-21,共5页
Journal of East China Jiaotong University
基金
安徽省教育厅重点项目(KJ2017A566)
蚌埠学院科学研究项目(2017ZR02)
关键词
敞车
颗粒流
侧压力
散体
railway truck
particle flow
side pressure
granule materia
