基于磨耗的自动分段补偿对中控制算法  

Automatic Segment Compensation Alignment Control Algorithm Based on Rail Head Wear

作　　者：王文星 罗江平 张东方 黄梦莹 赵明明 WANG Wenxing;LUO Jiangping;ZHANG Dongfang;HUANG Mengying;ZHAO Mingming(Zhuzhou Times Electronic Technology Co.,Ltd.,Zhuzhou,Hunan 412007,China)

机构地区：[1]株洲时代电子技术有限公司,湖南株洲412007

出　　处：《机车电传动》2021年第2期60-65,共6页Electric Drive for Locomotives

基　　金：湖南省战略性新兴产业科技攻关与重大科技成果转化项目(2019GK4023)。

摘　　要：基于激光轮廓测量原理的轮式探头(即探轮)自动对中系统的作用是确保探轮始终位于钢轨中心位置,使超声波能够正常扫查钢轨,保证探伤检测正常进行。为解决对中控制应用的难点,改进自动对中控制算法,提出基于钢轨轨头磨耗值对对中控制基准进行自动分段补偿的算法,解决了在轨头磨耗严重但对中系统控制偏差正常的情况下,仍然出现0°底波失波的问题。通过对实际钢轨线路进行试验验证,证明了改进算法能够减少0°底波失波,提高了磨耗线路上的探伤检测效果。RSU(roller search unit)automatic alignment system which is based on laser profile measurement theory ensures that the RSU is always above the center of the rail,so that the ultrasonic can scan the rail normally and ensuring normal flaw detection.In order to solve the difficult problems of alignment control application,the automatic alignment control algorithm was improved and the automatic segment compensation method for alignment control benchmark based on rail head wear was proposed.The proposed algorithm solved the problem of 0 degree bottom wave loss in the case of severe rail head wear and normal control deviation of the alignment system.With actual rail lines test,it was proved that the improved algorithm could reduce the 0 degree bottom wave loss and improve the flaw detection effect on the wear rail lines.

关 键 词：钢轨探伤车 自动对中系统 控制算法 钢轨轨头磨耗 分段补偿 轨道交通 钢轨 

分 类 号：U213.43[交通运输工程—道路与铁道工程] TP273[自动化与计算机技术—检测技术与自动化装置]