铁道车辆2024,Vol.62Issue(2) :131-138,150.DOI:10.3969/j.issn.1002-7602.2024.02.024

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

金星 丰明阳 施玉奇
铁道车辆2024,Vol.62Issue(2) :131-138,150.DOI:10.3969/j.issn.1002-7602.2024.02.024

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

金星 1丰明阳 1施玉奇1
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作者信息

  • 1. 中车青岛四方车辆研究所有限公司,山东青岛 266031;中铁检验认证(青岛)车辆检验站有限公司,山东 青岛 266031
  • 折叠

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.

Abstract

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

Key words

railway freight car/granular cargo/lateral pressure distribution/horizontal layer analysis/graphical method

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出版年

2024
铁道车辆
青岛四方车辆研究所有限公司

铁道车辆

影响因子:0.232
ISSN:1002-7602
参考文献量5
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