基于间接式测量轮轨力的重载机车轮轨力智能监测系统研究  

Intelligent Monitoring System of Heavy-Haul Locomotive Wheel-Rail Force Based on Indirect Measurement Method

作　　者：侯明明 王炯 HOU Mingming;WANG Jiong(Guoneng Transportation Technology Research Institute Co.,Ltd.,Beijing 100000,China)

机构地区：[1]国能运输技术研究院有限责任公司,北京100000

出　　处：《机械》2024年第10期73-80,共8页Machinery

摘　　要：轮轨动态接触力直接关系着机车车辆系统的动力学性能、轨道振动响应及其结构伤损情况。因此,基于间接式测量轮轨力方法,提出重载列车轮轨力智能监测系统技术方案,设计轮轨力监测点包括一系簧力、一系簧横向位移等参数,应用了现代传感技术、虚拟仪器技术、嵌入式技术和列车通信技术。以某八轴重载列车中部机车为例,在车下安装加速度、应变、位移等传感单元,对各传感器进行标定,并通过数据采集与数据处理等方法计算轮轨垂向力、轮轴横向力、脱轨系数等安全性指标。将间接方式得到的轮轨力通过动力学仿真进行验证。该监测系统能够实现轮轨垂向力等安全性指标的自动采集、自动处理、自动分析与传输,为重载铁路的智能化与信息化提供重要技术支撑。The dynamic wheel-rail contact force is directly related to the dynamic performance,rail vibration response and structural damage of the locomotive and vehicle system.Based on the indirect measurement method,this article proposes the technical solution of the heavy-haul locomotive wheel-rail intelligent monitoring system.The design of the rotary rail force monitoring item includes parameters such as one-series reed force and one-series springs horizontal displacement.Virtual instrument technology,embedded technology,and train communication technology has been applied.Take a certain eight-axis heavy-duty train in the middle of the train as an example.With acceleration,strain,displacement and other sensors installed under the vehicle,each sensor is calibrated.Data processing and other methods are used to calculate safety indicators such as the vertical force of the wheel track,the horizontal force of the wheel axis,and the derailment coefficient.The automatic collection,automatic processing,and automatic analysis and transmission of safety indicators provide important technical support for the intelligent and informatization of heavyhaul railways.

关 键 词：重载铁路 轮轨力 智能监测 服役安全 

分 类 号：U260[机械工程—车辆工程]