利用虚拟样机分析空中轨道结构车轨耦合特性

Application of Virtual Prototyping to Simulation of Vehicle rail Coupling of AERORail Structure

摘要:

预张弦索空中轨道结构不同于常规桥梁等结构，需要进行大量基础试验，而借助虚拟样机技术对这种新型轨道结构开展研究，能节省大量的时间和经费.针对预张弦索空中轨道结构的柔性特点，分析了利用虚拟样机技术开展其结构相关分析的可行性.在介绍了虚拟样机软件的柔性体建模方法与理论后，结合1∶15的模型试验，重点介绍了1∶1的预张弦索空中轨道仿真步骤及相应的建模方法，得到了相应的竖向位移和加速度时程曲线，总结了柔性弦索空中轨道的模型特点与方法.

Abstract:

The prestressed cable AERORail structure is different from the common bridges, more fundamental experiments are required especially for its dynamics behaviors. Virtual prototyping technology (VPT) is an economical and timesaving way to study this new structure. After an analysis of the feasibility and the merit, this paper introduces the flexible model theory and method with VPT software. Based on the 1∶15 model experiment, the simulation process and skills with 1∶1 model are presented and the vertical displacement and acceleration time history curve is obtained. Finally, the paper presents a summary of the model skills for the flexible cable rail structure.