铁路货车散粒货物侧压力分布理论研究  

Theoretical Study on Lateral Pressure Distribution of Granular Cargoes in Railway Freight Cars

作　　者：金星 丰明阳 施玉奇 JIN Xing;FENG Mingyang;SHI Yuqi(CRRC Qingdao Sifang Rolling Stock Research Institute Co.,Ltd.,Qingdao 266031,China;CRCC(Qingdao)Vehicle Inspection Station Co.,Ltd.,Qingdao 266031,China)

机构地区：[1]中车青岛四方车辆研究所有限公司,山东青岛266031 [2]中铁检验认证(青岛)车辆检验站有限公司,山东青岛266031

出　　处：《铁道车辆》2024年第2期131-138,150,共9页Rolling Stock

摘　　要：文章以无黏着散粒货物为研究对象,基于经典库伦土压力基础理论,采用水平层分析法,分析了散粒货物在稳态条件下对铁路货车端、侧墙的侧压力分布,推导了主动、被动状态下的侧压力分布、合力及其作用点位置公式,并采用图解法得到了破裂角的显式解及每种状态的临界点,给出了货车散装货物侧压力的研究建议。Taking the non-adhesive granular cargo as the research object,this paper,based on the classical Coulomb’s earth pressure theory,adopts the horizontal layer analysis method,analyzes the lateral pressure distribution of granular cargo on the end and side walls of railway freight cars under steady state conditions,deduces the lateral pressure distribution,the combined force and its location formulas of action points under the active and passive states,and obtains the explicit solution of the rupture angle and the critical point of each state by using the graphical method,and gives the research suggestion of the lateral pressure of the granular cargo of railway freight cars.

关 键 词：铁路货车 散粒货物 侧压力分布 水平层分析法 图解法 

分 类 号：U272[机械工程—车辆工程]