测力轮对连续测量的理论与实践  

Theory of High Accuracy Load Measuring Wheelset

作　　者：曾宇清[1] 王卫东[1] 甘敦文[1] 周大智 王成国[1] 贺启庸[1] 李金森[1] 黄强[1] 

机构地区：[1]铁道部科学研究院

出　　处：《铁道学报》1998年第6期28-34,共7页Journal of the China Railway Society

基　　金：铁道部科技研究开发计划A类项目

摘　　要：轮轨力测量是车辆动力学理论与实践的重要环节。利用现车辐板轮制作连续测力轮对是当今轮轨力测量的一个趋势。由于辐板轮应变复杂，没有直观的有效分析方法，测量组桥存在一定的盲目性，有交叉干扰以及接触点偏移影响等问题。本文从数学、力学、控制论等角度对测力轮对原理进行阐述，引入谐波分析建立辐板轮应变的有效分析方法，创造性地将测量组桥归结于数字滤波器设计，从而提出测力轮对连续测量新方法，在大大降低对贴片点位置要求的同时，较好地解决了以上问题，为提高现车辐板测力轮对的精度开辟了新途径。The measuring forces generated at the wheel/rail interface is the key that associates the theory with practice of vehicle dynamics.By using real wheel as the measuring wheelset which provides continuous measurement of the forces is a trend. For plate wheel, the strain map is complex, there is no useful method to analysis.How to design the measuring bridge,how to overcome across interference and how to erase the influrence of contact position are the questions.In the paper,a description of measuring wheelsets from the viewpoint of math,mechanics and cybernetics is given,a effective analysis method is established by using harmonic analyzer,the measuring bridge design is summed up to the digital filter design,and a new theory of high accuracy load measuring wheelset is given.

关 键 词：辐板测力轮对 轮轨力 车辆 测力轮 

分 类 号：U270.11[机械工程—车辆工程] U260.111[交通运输工程—载运工具运用工程]