铁道标准设计2018，Vol.62Issue(4)：40-46,7.DOI:10.13238/j.issn.1004-2954.201705150006
钢轨焊前断面廓形参数检测方法研究
Study on Methods for Detecting Pre-welding Rail Profile Parameters
摘要
Abstract
The rail profile parameters determine the smoothness, the post-welding grinding and the final quality of the rail. Based on the profile data collected by laser sensors, data processing methods are discussed in detail,including data fusion,segmentation fitting,contour calculation and so on. This paper analyzes the feasibility, accuracy and adaptability of different methods, conducts data preprocessing by moving average method and data fusion by the rectangular block and cylinder block calibration. Segmentation points are selected based on covariance matrix and segmentation fitting is completed by least square method. The experimental data shows that the method has good effect on data processing,and can efficiently and accurately detect pre-welding rail profile.关键词
钢轨/焊前检测/钢轨廓形/激光传感器/数据处理Key words
Rail/Pre-welding detection/Rail profile/Laser sensor/Data processing分类
交通工程引用本文复制引用
谢雯,李存荣..钢轨焊前断面廓形参数检测方法研究[J].铁道标准设计,2018,62(4):40-46,7.基金项目
国家自然科学基金课题(71171154) （71171154）
湖北省科技支撑计划项目(2015BAA063) （2015BAA063）
