论文部分内容阅读
为了研究高速磁浮导向及曲线通过性能,利用组装模型曲线通过仿真,提出了磁浮导向原理及菱形变位解决方案。基于三类基本模块(悬浮导向单元、悬浮框架和车体及牵引机构),组装半车(2转向架)模型、整车模型和动车组模型。这些组装模型具有约束的柔顺性、动力学与控制的高度集成性和模块化组装等特点。曲线通过仿真表明:在主动导向控制下,电磁横向力应使走行部弯曲并与轨道对中。与轮轨转向架类似,前后悬浮框架间的菱形变位可以降低电磁横向力,提高悬浮转向架的横向稳定性。由于车体端部摆杆摆角较大,所以车体空气弹簧支承刚度对两端电磁横向力产生了非常敏感的影响,进而产生端部减载问题。这种端部横向力敏感变化及端部减载问题得到了测试数据的证实。
In order to study the high-speed maglev guidance and the curve passing performance, the maglev guidance principle and the diamond displacement solution are proposed by using the assembly model curve through simulation. Based on the three basic modules (levitation guide unit, levitation frame and body and traction mechanism), semi-truck (2-bogie) model, vehicle model and EMU model are assembled. These assembly models have the features of compliance flexibility, high degree of integration of dynamics and control and modular assembly. The curve shows that under the active guidance control, the lateral force of electromagnet should make the running part bend and align with the track. Similar to the wheel-rail bogie, the rhombic displacement between the front and rear suspension frames can reduce the electromagnetic lateral force and improve the lateral stability of the suspension bogie. Due to the large swing angle of the pendulum at the end of the vehicle body, the support stiffness of the air spring of the vehicle body has a very sensitive influence on the electromagnetic lateral force at both ends, thereby causing the problem of end load shedding. This type of end lateral force sensitive change and end load shedding test data has been confirmed.