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首页> 外文会议>Smart structures : Requirements and potential applications in mechanical and civil engineering >CONTROLLING PANTOGRAPH DYNAMICS USING SMART TECHNOLOGY
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CONTROLLING PANTOGRAPH DYNAMICS USING SMART TECHNOLOGY

机译：使用智能技术控制缩放图动力学

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摘要

In this paper the authors have presented the results of a study using smart materials to control the contact force between the pantograph head and contact wire. They have shown that the PZT smart actuator has the potential of enhancing the swiftness of the control response for high-speed train by a head actuated active control system. It can be seen from the simulation results that the step response of the control loop is significantly improved, and the active contact force is maintained within a specified bandwidth after the disturbance has been applied to the system. The low damping of the pantograph head suspension is compensated by the controller design to increase the relative stability of the system. In addition, the dynamic model in this paper is not the complete model of the pantograph and the catenary system. The lumped mass of the contact wire in the model only mirrors the laboratory test. From a practical point of view the mechanical amplifier necessary to achieve the required pantograph head displacement from the small expansion of PZT stacks also needs further development. Controlling the pantograph dynamics using smart material technology should thus be considered as a preliminary study in this research field.
机译：在本文中，作者介绍了使用智能材料控制受电弓头和接触线之间的接触力的研究结果。他们表明，PZT智能执行器具有通过磁头驱动主动控制系统增强高速列车控制响应迅速性的潜力。从仿真结果可以看出，在将干扰施加到系统之后，控制回路的阶跃响应得到了显着改善，有效接触力保持在指定的带宽内。受电弓头悬架的低阻尼由控制器设计补偿，以增加系统的相对稳定性。另外，本文的动力学模型不是受电弓和接触网的完整模型。模型中接触线的集总质量仅反映了实验室测试。从实用的角度来看，从PZT烟囱的小膨胀中获得所需的缩放仪头位移所需的机械放大器也需要进一步开发。因此，使用智能材料技术控制受电弓动力学应被视为该研究领域的初步研究。

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