摘要
钢轨打磨列车作业过程中由于车身晃动以及钢轨的不平顺等原因会带来打磨的压力波动,从而影响打磨质量甚至导致钢轨损伤。为研究降低钢轨打磨压力波动的方法,从工作机理入手,对钢轨打磨作业系统以及作业过程进行分析,建立打磨压力输出的数学模型,通过模型分析影响打磨压力波动的主要因素,并通过数值仿真对改变打磨气缸无杆腔容积、打磨单元质量与气源压力降低压力波动影响的有效性进行验证。
During the rail grinding operation, the pressure fluctuation caused by vehicle vibration and track irregularities will affect the grinding quality or damage the rail even worse. To find out how to reduce the pressure fluctuation, based on the working mechanism of the rail grinding operation process, the mathematical model of the grinding pressure was built, which is the output of the grinding control system. According to the model, the main factors affecting the grinding pressure include non-rod cylinder capacity of the chamber, quality of the grinding motor and pressure of the air supply. The mathematical simulation verifies that by changing these factors the pressure fluctuation can be effectively reduced.
出处
《中南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2013年第8期3546-3551,共6页
Journal of Central South University:Science and Technology
基金
铁道部科技研究开发计划重点项目(20100G008-C)
北京交通大学校科研基金资助项目(M11JB00400)
关键词
钢轨打磨
气动系统建模
打磨压力波动
rail grinding
pneumatic system modeling
grinding pressure fluctuations
