UM Loco

UM Loco

istory UM轨道车辆系统动力学仿真解决方案

 

　　UM Loco是专业的轨道车辆动力学仿真模块, 适用于机车、客车和货车)。 UM Loco使用高效率高精度的数值方法求解车辆系统微分方程和微分-代数方程。用户使用UM Loco可以创建全参数化的机车车辆模型, 物体几何、惯量和力元等参数都可以用标识符。参数化的模型更适用于动力学性能分析和 优化

　　有时我们需要获得更精确的解或进行 耐久性分析, 这就需要在多刚体车辆模型中引入柔性体, 目前支持 ANSYS 和 NASTRAN, 这项功能由 UM FEM 模块实现。

　　文章"Simulation of dynamics of railway vehicles in Universal Mechanism software" (8页)简要介绍了UM在轨道交通行业应用情况。

　　UM数学模型的正确性已得到曼彻斯特标准考题的认证。

istory UM Loco 模块功能

 

    - 计算机车车辆临界速度
    - 车辆或列车在直线、曲线和道岔等线路条件下的三维动力学分析, 并考虑轨道不平顺激扰
    - 基于轮轨型面的车辆动力学分析
    - 基于多变量优化的车辆或列车动力学分析(需要UM Experiments模块)
    - 计算车辆系统固有频率和模态分析, 绘制根轨迹
    - 机车车辆刚柔耦合分析(需要UM FEM模块)
    - 机车车辆零部件耐久性分析(需要UM FEM和UM Durability模块)

点击观看动画 点击观看动画
EP200电力机车牵引的客运列车模型 18-100三大件式转向架模型

 

istory UM Loco 专业工具

 

    - 标准的轮对子系统
    - 根据不同的蠕滑力模型(Mueller model, FastSim algorithm, modified Kik-Piotrowski method, etc.)自动计算轮轨接触力, 并支持非赫兹多点接触(non-elliptical)
    - 动态显示轮轨接触力和接触斑的动画窗口
    - 创建轮轨型面和轨道不平顺的工具
    - 设置曲线线路参数的工具
    - 内置轮轨蠕滑力、蠕滑率、磨耗指数、脱轨系数和轮重减载率等30多个标准变量

car vl80
货车模型 VL80电力机车模型
istory UM Loco 软件认证


　　曼彻斯特城市大学铁道技术系 是全球轨道车辆动力学仿真软件的标准测试和认证机构, 旨在帮助研究者考察各个商业软件的适用性和可信度。

　　曼彻斯特标准考题发表于1998年, 既有客车模型也有货车模型。各大商业软件的测试结果详见参考文献[1]。 UM的测试结果请见 10_UM_Loco_Manchester_benchmarks.pdf (1 Mb)。

　　许多科研人员进行了现场试验并验证了UM的仿真结果。Sakalo和Kossov [2, 3]建立了完整的TE116机车模型并做了现场试验,他们认为“… 仿真和试验结果吻合, 最大偏差不超过15 %。” Pavlukov和他的合作者用一个三大件式货车转向架做了仿真和试验, 其最大偏差不超过10%[4].

参考文献

    1. Iwnicki, Simon D. The Manchester benchmarks for rail vehicle simulation / ed. by S. Iwnicki. - Lisse: Swets & Zeitlinger, 1999. Available on Amazon

    2. Kossov, V. S. Reducing dynamical loading of running gears of locomotives and railway track. Doctoral thesis, Kolomna, 2001 (in Russian)

    3. Sakalo V.I., Kossov V.S. Contact problems of railway transport. Moscow: Mashinostroenie, 2004. (in Russian)

    4. Pogorelov D.Yu., Pavlukov A.E., Yudakova T.A., Kotov S.V. Simulation of contact interactions in multibody system dynamics. / Dynamics, strength and reliability of transport machines / ed. by V.I. Sakalo. Bryansk: Bryansk State Technical University, 2001. P. 11–23. (in Russian)

istory UM主要用户


    轨道交通行业越来越多的高等院校、科研单位和企业选用UM进行产品创新设计:

Russian Railways, Russia,
All-Russian Railway Design Institute , Moscow, Russia,
All-Russian Locomotive Design Institute , Kolomna, Russia,
Central design office of transport engineering, Tver, Russia,
State Unitary Enterprise "Production Association "URALVAGONZAVOD" , Nizhniy Tagil, Russia,
JSC «Kolomna Locomotive Works», Kolomna, Russia,
JSC "Bryansk Machine Building Works", Bryansk, Russia,
All-Russian Design Institute of Electric Locomotives , Novocherkassk, Russia,
JSC Metrowagonmash, Mytischy, Russia,
Vossloh Spain company, Spain,
INKA, Indonesian Railway Industry, Indonesia,
Bryansk State Technical University, Bryansk, Russia,
Far-Eastern State University of Railway Transport, Khabarovsk, Russia,
Irkutsk State University of Railway Transport, Irkutsk, Russia,
Russian State Open University of Railway Transport, Moscow, Russia,
Ural State University of Railway Transport, Ekaterinburg, Russia,
Samara State Academy of Railway Transport, Samara, Russia,
Moscow State University of Railway Transport, Moscow, Russia,
Rostov State University of Railway Transport, Rostov-on-Don, Russia,
State Research and Design Center of Railway Transport, Kiev, Ukrane,
Silesian Technical University, Katowice, Poland,
Seoul National University, Seoul, Korea.

Chinese Academy of Railway Sciences (CARS)
CRRC Qingdao Sifang Rolling Stock Research Institute Co., Ltd
East China Jiaotong University
Southwest Jiaotong University
Shijiazhuang Tiedao University
Beijng Jiaotong University
CRRC Nanjing Puzhen Co., Ltd.
Southwest Jiaotong Univeirsity Emei Campus
CRRC Zhuzhou Times New Material Technology Co.
BYD Company Limited
China Railway Eryuan Engineering Group Co., Ltd.
Tongji University
China Railway Design Corporation
CRRC Zhuzhou Locomotive Co., Ltd.
Shanghai University of Engineering Science
Beijing General Municipal Engineering Design & Reearch Institute Co., Ltd.