Parameterised finite element model for S&C Benchmark in Matlab and Abaqus format

A finite element model of a 60E1-R760-1:15 turnout with parameterised rail pad and ballast properties for simulation Benchmark purposes. The matlab script WriteAbaqus_210927 generates a turnout FE model in Abaqus format with the track stiffness properties (ballast and pad) and nodal constraints defined at the top of the file. An overview of the model is provided in the article Björn A. Pålsson, Ramakrishnan Ambur, Michel Sebès, Ping Wang, Jou-Yi Shih, Demeng Fan, Jingmang Xu, and Jiayin Chen, A comparison of track model formulations for simulation of dynamic vehicle–track interaction in switches and crossings, Vehicle System Dynamics, https://doi.org/10.1080/00423114.2021.1983183 The main file for the FE model is called TurnoutMaster.inp An optional tangent track extension section of 25.2 metres can be written if trackExtensionFlag=1. The main file is called TrackExtensionMaster.inp The rail and sleeper body files are provided "as is" while the bushing properties and nodal constraint files are updated each time the script is run. The rail and sleeper bodies are available in the zip folder RailAndSleeperBodies.zip Example models for the calulation of track receptance are included in the folders Turnout_1 and TrackExtension_1. The Turnout_1 model also includes a file called RUNNING_SURFACE_NODES.inp with sets of nodes for the different rails required for some software implementations (e.g. Simpack linear flextrack) and for simulations of traffic in the through and diverging routes. If the track extension is used, additional node sets would have to be created for those rails as well, but it's straightforward to use the nodes of the straight rail bodies for this purpose.本数据集包含一款用于仿真基准测试的、带参数化轨枕垫板与道砟属性的60E1-R760型1:15道岔（Turnout）有限元模型（Finite Element Model）。 Matlab脚本WriteAbaqus_210927可生成Abaqus格式的道岔有限元模型，文件头部已定义轨道刚度属性（道砟与垫板）以及节点约束。 该模型的整体概述可参阅以下论文：Björn A. Pålsson、Ramakrishnan Ambur、Michel Sebès、Ping Wang、Jou-Yi Shih、Demeng Fan、Jingmang Xu与Jiayin Chen，《道岔与交叉道口动态车轨耦合互动仿真的轨道模型公式对比》，《Vehicle System Dynamics》，https://doi.org/10.1080/00423114.2021.1983183 该有限元模型的主文件为TurnoutMaster.inp。当设置trackExtensionFlag=1时，可生成一段可选的25.2米直线轨道扩展段，其主文件为TrackExtensionMaster.inp。 钢轨与轨枕实体文件将按原始状态提供，而衬套属性与节点约束文件会在每次运行脚本时自动更新。 钢轨与轨枕实体文件均封装于压缩包RailAndSleeperBodies.zip中。 轨道导纳计算示例模型分别存放于Turnout_1与TrackExtension_1文件夹中。 Turnout_1模型还包含RUNNING_SURFACE_NODES.inp文件，该文件包含了部分软件实现（如Simpack线性弹性轨道）所需的不同钢轨节点集，以及直向与侧向行车仿真所需的节点集。 若需使用轨道扩展段，则需为对应钢轨创建额外的节点集，但直接利用直线钢轨实体的节点即可轻松完成该操作。