[1]马敬武,谢建明,王 伟,等.铁路既有曲线混合约束非线性最优化整正研究[J].高速铁路技术,2022,13(06):30-35.[doi:10.12098/j.issn.1674-8247.2022.06.006 ]
 MA Jingwu,XIE Jianming,WANG Wei,et al.Study on Nonlinear Optimization Correction of Existing Railway Curves with Mixed Constraints[J].HIGH SPEED RAILWAY TECHNOLOGY,2022,13(06):30-35.[doi:10.12098/j.issn.1674-8247.2022.06.006 ]
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铁路既有曲线混合约束非线性最优化整正研究()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
13卷
期数:
2022年06期
页码:
30-35
栏目:
理论探索
出版日期:
2022-12-20

文章信息/Info

Title:
Study on Nonlinear Optimization Correction of Existing Railway Curves with Mixed Constraints
文章编号:
1674—8247 (2022) 06—0030—06
作者:
马敬武1谢建明2王 伟1谢红太1
1.华设设计集团股份有限公司,南京210014;2.四川大学,成都610065
Author(s):
MA Jingwu1XIE Jianming2WANG Wei1XIE Hongtai11
1.China Design Group Co. ,Ltd. ,Nanjing? 210014 ,China;2.Sichuan University ,Chengdu 610065 ,China
关键词:
曲率 曲线整正 混合线性约束 拨道量
Keywords:
curvaturecurve correctionmixed linear constrainttrack lining amount
分类号:
U216.3
DOI:
10.12098/j.issn.1674-8247.2022.06.006
文献标志码:
A
摘要:
本文针对既有铁路曲线整正后无缝线路锁定轨温变化给维修作业带来的不便,将轨道长度不变作为一种约束条件,考虑半径和缓和曲线长度在允许范围内取整要求,并结合各控制点拨道量限制条件,提出基于混合约束最优化模型计算曲线整正的方法。首先由曲率图对铁路线形概略分段,选取圆曲线段测点坐标,然后利用几何重心法计算曲线初始几何要素,最后以拨道量的平方和最小为目标函数,建立混合约束的非线性最优化模型;利用计算机语言Python自主编程计算兰新线某段拨道量值,并与传统拨道量计算值进行比较。研究结果表明:(1)可将轨道几何长度不变作为约束条件,且满足半径和缓和曲线长度取整的要求;(2)测点拨道量平方和和绝对值均比传统拨道量计算值好;(3)该模型能够满足客货共线、重载铁路以及铁路大提速既有曲线整正。
Abstract:
In view of the maintenance inconvenience caused by the change of fastening-down rail temperature of CWR track after curve correction of existing railway,this paper proposes a method to calculate curve correction based on the mixed constraint optimization model by taking the unchange of track length as a constraint condition,taking into consideration the requirement for rounding off the radius and transition curve length within the allowable range,and considering the limiting conditions for track lining amount at each control point. First,we roughly segmented the railway alignment according to the curvature diagram,selected the coordinates of the measuring points in the circular curve segment,then calculated the initial geometric elements of the curve by the geometric center-of-gravity method,and finally established a nonlinear optimization model with mixed constraints by taking the minimum sum of squares of the track lining amount as the objective function. Then,we used the computer language Python self-programming to calculate the track lining amount of a section of Lanzhou-Urumqi High-speed Railway and compared it with the calculated traditional track lining amount. The results show that:(1)The unchange of geometric track length can be used as a constraint,and the requirement for rounding off the radius and the transition curve length can be satisfied.(2)The sum of squares and absolute value of track lining amount at the measuring point are better than the calculated traditional track lining amount.(3)This model can meet the requirement of correcting existing curves for mixed passenger and freight railway,heavy-haul railway and railway speed increase.

参考文献/References:

[1] 刘永孝,刘学毅,张咏军,等. 铁路既有曲线整正计算中基于坐标法的渐伸线误差分析研究[J]. 铁道学报,2012,34(4): 82-87. LIU Yongxiao,LIU Xueyi,ZHANG Yongjun,et al. Study on Involute Errorsin Computation of Existing Railway Curve Realignment[J]. Journal of the China Railway Society,2012,34(4): 82-87.
[2] 杨辉,李一龙. 基于坐标的既有铁路曲线整正约束优化算法研究[J]. 数学的实践与认识,2009,39(24): 166-171. YANG Hui,LI Yilong. Existing Railway Curve Realignment Constrained Optimization Algorithm Research Based on Coordinates [J]. Mathematics in Practice and Theory,2009,39(24): 166-171.
[3] BIRKHOLZ A,SCHLEGEL H. Path Optimization by a Variational Reaction Coordinate Method. I. Development of Formalism and Algorithms[J]. Journal of Chemical Physics,2015,143(24):363?368
[4] 秦方方,易思蓉,杨长根. 基于三次样条曲线的铁路既有曲线整正方法[J]. 中国铁道科学,2010,31(2): 18-23. QIN Fangfang,YI Sirong,YANG Changgen. Method for the Realignment of the Existing Railway Curve Based on the Cubic Spline Curve[J]. China Railway Science,2010,31(2): 18-23.
[5] 刘鑫. 既有铁路曲线整正优化计算模型理论分析[J]. 系统工程理论与实践,1994,14(5): 57-63. LIU Xin. Theoretical Analysis for the Optimization Calculation Model of the Existing Railway Curve Realinement[J]. Systems Engineering-Theory & Practice,1994,14(5): 57-63.
[6] 刘鑫,曾学贵. 快速铁路既有曲线约束非线性最优化整正研究[J]. 铁道学报,2003,25(3): 101-103. LIU Xin,ZENG Xuegui. Constrainted Nonlinear Optimal Realinement of the Existing Railway Curve[J]. Journal of the China Railway Society,2003,25(3): 101-103.
[7] 丁克良,刘大杰,周全基. 既有铁路曲线整正平差算法[J]. 测绘学报,2004,33(3): 195-199. DING Keliang,LIU Dajie,ZHOU Quanji. Adjustment Algorithm for Realignment of the Existing Railway Curve[J]. Acta Geodaeticaet Cartographic Sinica,2004,33(3): 195-199.
[8] 王保成,韩峰. 基于坐标测量的既有曲线整正计算优化方法研究[J]. 兰州交通大学学报,2008,27(1): 11-13. WANG Baocheng,HAN Feng. Research on Optimization Method forthe Existing Railway Curve Realignment Based on Coordinate Measurement[J]. Journal of Lanzhou Jiaotong University,2008, 27(1): 11-13.
[9] 杨辉,李一龙. 基于坐标的既有铁路曲线整正约束优化算法研究[J]. 数学的实践与认识,2009,39(24): 166-171. YANG Hui,LI Yilong. Existing Railway Curve Realignment Constrained Optimization Algorithm Research Basedon Coordinates [J]. Mathematicsin Practiceand Theory,2009,39(24): 166-171.
[10]?刘文涛. 基于坐标算法的铁路线路整正系统研究[D]. 兰州: 兰州交通大学,2013. LIU Wentao. Research the Railway Realignment System Based on the Coordinate Algorithm[D]. Lanzhou: Lanzhou Jiatong University, 2013.
[11]?HOU Maoshen. Research on Constrained Optimization of Coordinate Method in Railway Curve Realignment[J]. Journal of Lanzhou Institute of Technology,2014,21(4): 38?41.
[12]?缪鹍,田家凯,杨小礼. 基于PSO的既有线曲线整正方法[J]. 中国铁道科学,2014,35(3): 8-14. MIAO Kun,TIAN Jiakai,YANG Xiaoli. Realignment Method for Existing Railway Curve Based on PSO[J]. China Railway Science, 2014,35(3): 8-14.
[13]?王保成,韩峰. 基于坐标测量的既有曲线整正计算优化方法研究[J]. 兰州交通大学学报,2008,27(1): 11-13. WANG Baocheng,HAN Feng. Research on Optimization Method for the Existing Railway Curve Realignment Based on Coordinate Measurement[J]. Journal of Lanzhou Jiaotong University,2008, 27(1): 11-13.
[14]?姚连璧,刘春. 样条函数与稳健估计在线路线形识别中的应用[J]. 同济大学学报(自然科学版),2004,32(7): 943-946. YAO Lianbi,LIU Chun. Spline Function and Robust Estimation Applied in Line Type Identification for Railways[J]. Journal of Tongji University,2004,32(7): 943-946.
[15]?石培泽. 高速客运专线平面曲线重构方法研究[D]. 成都: 西南交通大学,2018. SHI Peize. Study on Plane Curve Reconstruction Method of High-Speed Passenger Dedicated Line[D]. Chengdu: Southwest Jiaotong University,2018.
[16]?潘振兴,韩峰,王博,等. 基于曲率变化特征的既有线路整正算法设计[J]. 铁道标准设计,2019,63(9): 6-10. PAN Zhenxing,HAN Feng,WANG Bo,et al. Design and Practice of Existing Railway Line Realignment Algorithm Based on Curvature Variation Characteristics[J]. Railway Standard Design,2019,63(9):6-10.
[17]?王博,韩峰. 基于坐标测量的既有曲线整正算法设计与实现[J].铁道科学与工程学报,2019,16(6): 1398-1404. WANG Bo,HAN Feng. Design and Practice of Existing Railway Curve Realignment Algorithm Based on Coordinate Measurement[J]. Journal of Railway Science and Engineering,2019,16(6): 1398-1404.
[18]?俞佳伟. 基于轨检车数据的铁路曲线整正计算方法研究[D].成都: 西南交通大学,2014. YU Jiawei. Study on Calculation Method of the Railway Curve Lining Based on Track Geometry Car InspectionData[D]. Chengdu:Southwest Jiaotong University,2014.

备注/Memo

备注/Memo:
收稿日期:2022-03-20
作者简介:马敬武(1990-),男,助理工程师。
更新日期/Last Update: 2022-12-20