窄轨客车转向架轮轴疲劳强度及紧固度分析评估
兰清群
（安徽交通职业技术学院 城市轨道交通与信息工程系，安徽 合肥 230051）
摘要：以窄轨客车转向架轮对为分析对象，在评估轮轴静强度的基础上，通过计算车轮和车轴的平均应力和应力幅值校核了循环载荷下转向架轮轴疲劳强度，通过有限元分析软件使用安全系数法直观的评估了转向架轮轴强度及车轮与车轴过盈配合紧固度，为在模型阶段客车轮轴的设计提供改进的依据，为客车的安全运行提供更可靠的保证。
关键词：窄轨；转向架；疲劳强度；紧固度
中图分类号：U260.331 文献标志码：A doi：10.3969/j.issn.1006-0316.2016.04.013
文章编号：1006－0316 (2016) 04－0055－07
Fatigue strength and tightness analysis and assessment of axle bogie of narrow gauge passenger car
LAN Qingqun
( Anhui Communications Vocational and Technical College Department of Urban Rail Transit and Information Engineering, Hefei 230000, China )
Abstract：Narrow gauge passenger car wheel is analyzed as the object, based on the assessment of the static strength of axles and wheels, the fatigue strength of wheels and axle is checked by calculating the mean stress and stress amplitude under cyclic loading, the tightness of interference fit of the wheels and axle is assessed by the safety factor based on the finite element method, providing an improved basis for the coach axle designing at model stage, providing a more reliable guarantee for the safe operation of the railway coach.
Key words：narrow-gauge；bogie；fatigue strength；tightness
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收稿日期：2015－12－07
基金项目：安徽省自然科学研究项目（KJ2015A447）
作者简介：兰清群（1987－），女，江西萍乡人，讲师，硕士，主要研究方向为车辆结构强度。
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