摘 要:针对装配车体挠度调整过程中存在过程麻烦、容易出错、人力耗费大的问题,文章从装配车体模型入手,研究基于线性规划的轨道交通车辆装配车体挠度调整方法。通过建立装配车体有限元模型,求解装配车体调整过程各调整点调整力与装配车体挠度变形关系。通过三次样条曲线拟合方法对装配车体挠度变形曲线进行拟合,并利用线性规划方法求解最优装配车体挠度调整方法。结果表明,利用该方法可快速计算出各调整点挠度调整力最小的最优调整方法,指导技术人员对装配车体进行调整。
关键词:装配车体;挠度调整;三次样条曲线拟合;线性规划
DOI:10.19850/j.cnki.2096-4706.2021.13.037
基金项目:广东省质量技术监督局 2020 年 度科技项目(2020ZJ04);江门市科技局 2020 年度科技项目(2020030103040008579)
中图分类号:TP29 文献标志码:A 文章编号:2096-4706(2021)13-0144-04
Research on Deflection Adjustment Method of Rail Transit Vehicle Assembly Carbody Based on linear Programming
OUYANG Baitian1 , CAI Jiafu2 , LIU Guixiong2
(1.Guangdong Jiangmen Supervision Testing Institute of Quality & Metrology, Jiangmen 529030, China; 2. College of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China)
Abstract: In view of the problem of troublesome process, error-proneness, and high labor cost in the assembly car body deflection adjustment process, this paper starts with the assembly car body model and studied the rail transit vehicle assembly car body deflection adjustment method based on the linear programming method. By establishing a finite element model of the assembly car body, the relationship between the adjustment force of each adjustment point and the deflection of the assembly car body during the adjustment process of the assembly car body is solved. The cubic spline curve fitting method is used to fit the deflection deformation curve of the assembly car body, and the linear programming method is used to solve the optimal assembly car body deflection adjustment method. The results show that this method could quickly calculate the optimal adjustment method with the smallest deflection adjustment force at each adjustment point, and guide the technicians to adjust the assembled car body.
Keyword: assembly car body; deflection adjustment; cubic spline curve fitting; linear programming
参考文献:
[1] 楼强天,顾亚桃 . 机车车架挠度控制技术及应用 [J]. 机车 车辆工艺,2014(6):4-6.
[2] 王立夫,王金金,刘东军,等 .B 型铝合金地铁车辆车体 制造工艺 [J]. 轨道交通装备与技术,2013(1):1-3.
[3] 黄军才 . 浅析城轨铝合金车体扭曲变形 [J]. 金属加工(热 加工),2017(16):35-39.
[4] 朱向东 . 上海轨道交通 11 号线车辆车体扭曲变形和挠度 控制工艺改进 [J]. 电力机车与城轨车辆,2009,32(3):32-33.
[5] 冯亮,杨佳奇,刘宇,等 . 铰接型车辆车体挠度研究 [J]. 机车车辆工艺,2018(4):1-3.
[6] 苍松 . 某型号时速 250 km 的不锈钢点焊车体钢结构强度 分析 [J]. 铁路计算机应用,2018,27(6):40-42.
[7] 蒋冬清,李三雁,代春香 . 基于有限元法的客车制动工况 整车情况分析 [J]. 中国测试,2017,43(11):140-144.
[8] 张绪进,张祎 . 重大件码头钢桁架平台车有限元分析 [J]. 武汉 理工大学学报(交通科学与工程版),2012,36(1):145-148.
[9] WU Y,LIANG X,ZHOU W,et al. Load Identification and Deflection Monitoring of Opening Beam on Well-Hole Freight Trains [J]. IEEE Access,2020(99):1.
[10] 张航,邬平波 . 基于 ABAQUS 的车体强度分析 [J]. 机 车电传动,2017(4):32-35.
[11] 王冰冰,李淮江 . 基于三次样条插值的硅压阻式压力传感器的温度补偿 [J]. 传感技术学报,2015,28(7):1003-1007.
作者简介:欧阳柏添(1976—),男,汉族,广东江门人,总 工程师,高级工程师,本科,主要研究方向:计量测试。