T型轨道检查仪轨距测量固有误差及其补偿(下)
朱嫣 1张苗苗 2吴维军 3王志勇 3熊鹰 2朱洪涛3
作者信息
- 1. 南昌航空大学飞行器工程学院,江西 南昌 330063
- 2. 江西日月明测控科技股份有限公司,江西 南昌 330029
- 3. 南昌大学先进制造学院,江西 南昌 330031;江西日月明测控科技股份有限公司,江西 南昌 330029
- 折叠
摘要
T型铁路轨道检查仪为T形小车结构,在测量曲线轨距时,由于测量原理存在缺陷,测得的轨距中会引入固有误差(D值误差),导致"假轨距"问题.在分析轨距测量原理和D值误差,以及D值误差对轨距测量准确度影响的基础上,讨论短纵梁、线形参数补偿、增加轨距辅助测头等处理"假轨距"问题的常见方法,提出惯性轨迹补偿方法,并在试验线路上验证轨距补偿效果.结果表明,采用惯性轨迹补偿方法补偿后,T型铁路轨道检查仪测得的轨距更接近实际轨距,且满足TB/T 3147-2020《铁路轨道检查仪》要求,重复性和一致性优于轨距辅助测头补偿方法.基于 2 种补偿方法效果的分析,提出优化铁路轨道检查仪标准的相关建议.
Abstract
The T-shaped inspecting instrument for railway track is a T-shaped trolley structure.When measuring the gauge on curves,due to deffects in the measurement principle,inherent errors(D-value error)will be introduced into the measured gauge,leading to the problem of"false gauge".On the basis of analyzing the principle of gauge mea-surement and D-value error,as well as the impact of D-value error on the accuracy of gauge measurement,the paper discusses common methods for dealing with"false gauge"problems,such as short longitudinal beams,linear param-eter compensation,and adding an assisted gauge probe,proposes an inertial trajectory compensation method and veri-fies the effect of gauge compensation on experimental lines.The results show that after using the inertia trajectory compensation,the gauge measured by the T-shaped inspecting instrument for railway track is closer to the actual gauge and meets the requirements of TB/T 3147-2020 Inspecting instruments for railway track.The repeatability and consistency are better than those of the assisted gauge probe compensation method.Based on the analysis of the effec-tiveness of two compensation methods,relevant suggestions for optimizing the standards of inspecting equipment for railway track are proposed.
关键词
铁路轨道检查仪/D值误差/轨距补偿/惯性轨迹Key words
Inspecting Instruments for Railway Track/D-value Error/Gauge Compensation/Inertial Trajectory Com-pensation引用本文复制引用
基金项目
国家重点研发计划(2022YFB2602905)
江西省自然科学基金(青年基金)(20212BAB214041)
出版年
2024
NETL
NSTL
万方数据