铁道标准设计2017，Vol.61Issue(12)：41-45,5.DOI:10.13238/j.issn.1004-2954.2017.12.009
30t轴重重载铁路高低/轨向复合不平顺管理限值分析
Management Limit Analysis of Vertical and Alignment Track Composite Irregularity of 30 t Axle Load Railway
摘要
Abstract
In order to study the effect of the wavelength and amplitude of vertical and alignment track composite irregularity on the dynamic performances of heavy haul vehicles,a 30t axle load heavy haul vehicle-track dynamic model is established based on the dynamics theory and the multi-body dynamics software UM,then the adverse wavelength and the recommended amplitude of irregularity are proposed.Research results show that(1) the adverse wavelength is 10m,and when the wavelength is over 40m it imposes less effect on dynamic performance;(2) of the vertical and alignment track composite irregularity,the change of vertical irregularity amplitude has obvious influence on the rate of wheel load reduction and vertical acceleration of the carbody,while the change of alignment track irregularity amplitude has great influence on the derailment coefficient,the rate of wheel load reduction,lateral force and lateral acceleration of the carbody;(3) as for exclusive heavy haul railway,the recommended amplitudes of vertical and alignment track composite irregularity are 4 mm/5 mmm 7 mm/8 mm,10 mm/10 mm and 14 mm/13 mm respectively in terms of Ⅰ ～ ⅣV management standards.关键词
重载铁路/复合不平顺/动力响应/管理限值Key words
Heavy haul railway/Composite irregularity/Dynamic response/Management limit value分类
交通工程引用本文复制引用
曾勇,蒋兴,傅丽霖..30t轴重重载铁路高低/轨向复合不平顺管理限值分析[J].铁道标准设计,2017,61(12):41-45,5.基金项目
国家自然科学基金项目(51578472) （51578472）
