高速铁路轨道中长波平顺性参数计算方法
A study of medium-and-long-wave comfort parameter computational method in high-speed railway track
刘爽 1刘成龙 1马洪磊 1杨雪峰 1周凌焱1
作者信息
- 1. 西南交通大学 地球科学与环境工程学院，四川 成都 611756
- 折叠
摘要
高速铁路轨道中长波平顺性参数的计算方法是高速铁路轨道精测与精调的核心技术，现有的中长波平顺性参数计算多采用以轨道点法向偏移量代替矢距差（即设计矢距与实测矢距之差）的近似计算方法。由于该算法忽略实测弦线端点偏差的影响，导致轨道实测轨向（高低）计算结果与严密算法计算结果存在一定的偏差。鉴于现有近似算法存在准确度低的缺点，文中在现有近似算法的基础上提出一种改进算法，并通过对轨道实测坐标数据的计算和对比，验证改进算法的可行性和准确性，并提高高铁轨道中长波平顺性参数计算结果的准确度，可为高速铁路轨道精测与精调提供参考。
Abstract
The computational method of medium‐and‐long‐wave comfort parameters is a core technology in the high‐speed railway track’s precise measurement and fine adjustment .In the current medium‐and‐long‐wave comfort parameter computational methods ,an approximate method is mostly adopted ,that is ,vector distance difference (the difference between designed vector distance and actual vector distance ) replaced by track points’ normal direction .The ignorance of measured chord endpoint’s division in the computational method leads to a certain deviation between actual measured track direction/height and the theoretical one . As for the low accuracy of the approximate computation ,this paper proposes an improved method ,and verifies its feasibility and accuracy by the calculation and comparison of actual measured data .T he improved computation improves the computational accuracy w hich provides a reference for the high‐speed railway track’s precise measurement and fine adjustment .
关键词
高速铁路/中长波平顺性/轨道精调/准确度/改进算法Key words
high-speed railway/medium-and-long-wave comfort parameter/track fine adjustment/accuracy/improved computation引用本文复制引用
基金项目
中央高校基本科研业务专项资金资助项目(SWJ-TU12ZT07／SWJTU12BR014)
“2011计划”轨道交通安全协同创新中心经费资助项目()
出版年
2015
NETL
NSTL
维普
万方数据