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Stability analysis, modeling, simulation and experimental testing of an EMS Maglev system with structural flexibility.

机译:具有结构灵活性的EMS Maglev系统的稳定性分析,建模,仿真和实验测试。

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Vehicle-guideway interaction studies of Magnetically Levitated (Maglev) vehicles indicate that structural flexibility can adversely affect the overall stability and performance of such systems. This is one of the reasons why guideways are generally made very rigid. This in turn leads to increased cost of the overall system since guideway construction forms a significant portion of the overall cost. In this dissertation, the influence of structural flexibility on the stability of Electromagnetic Suspension (EMS) Maglev systems is studied. It is shown how inherently unstable and flexible structure EMS Maglev systems can achieve guaranteed stability by using collocated actuators and sensors, along with de-centralized Proportional plus Derivative (PD) controllers. These results are valid even in the presence of Track/Guideway flexibility.;A detailed dynamic model is developed for the EMS Maglev demonstration system (Test Bogie) currently under research and development at Old Dominion University (ODU). This model incorporates structural dynamics with flexible modes of vibration, non-linear electrodynamics, feedback controllers, discrete time implementation, noise filters and disturbance inputs. This model is validated via real time experimental testing. The model thus validated is used for simulation case studies involving levitation and lateral disturbance, lateral control, and centralized control.
机译:磁悬浮(Maglev)车辆的车辆-导轨相互作用研究表明,结构灵活性可能会对此类系统的整体稳定性和性能产生不利影响。这就是通常使导轨非常刚性的原因之一。这反过来导致整个系统的成本增加,因为导轨的构造构成了总成本的很大一部分。本文研究了结构柔性对电磁悬浮磁悬浮系统稳定性的影响。通过使用并置的执行器和传感器以及分散的比例加微分(PD)控制器,可以证明固有的不稳定和灵活结构的EMS Maglev系统如何实现保证的稳定性。这些结果即使在使用Track / Guideway灵活性的情况下也是有效的。;为Old Dominion University(ODU)目前正在研究和开发的EMS Maglev演示系统(Test Bogie)开发了详细的动态模型。该模型将结构动力学与灵活的振动模式,非线性电动力学,反馈控制器,离散时间实现,噪声滤波器和干扰输入结合在一起。该模型通过实时实验测试进行了验证。如此验证的模型用于涉及悬浮和横向干扰,横向控制和集中控制的模拟案例研究。

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