A study on restriction of electro-mechanical coupling vibration in magnetic levitation system by power conversion technique

功率变换技术限制磁悬浮系统机电耦合振动的研究

基本信息

批准号：
12650276
负责人：
HIKIHARA Takashi
金额：
$ 2.24万
依托单位：
KYOTO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2000
资助国家：
日本
起止时间：
2000 至 2001
项目状态：
已结题

项目摘要

This research project has been targeting the magneto-elastic coupled beam system, the multi-bodies suspended by magnetic bearings, magnetically levitated structures and so on as electro-mechanical coupled systems. The systems have a spatially distributed continuous structure, but the magnetic force is placed discretely. Our research group has studied on the restriction of the coupled vibration which appears between the electrical system and mechanical one. The method through the electrical system has a possibility of the restriction by using power electronics. Conventionally, the coupled complex system has been designed to avoid the resonance and nonlinearity of the coupling. The method did not achieve the optimal design of the systems. Then it is important to grasp the dynamics of the system based on the both fundamental researches. In this project the dynamics of magnetically suspended systems have been studied experimentally and numerically.The obtained results are as follows:(1) Th … More e placements of magnets are substantial to suspend the spatially distributed steel structure by magnetic levitation techniques. The importance was confirmed by experimental and numerical discussion. Especially, the dynamics of waves, which appear in the distributed structure, is should be clearly understood to restrict the vibration in an element of the system.(2) The fundamental equations in the mechanical dynamics were reconsidered to represent the characteristics of the coupling vibration. The control method through the power electronics did not show the remarkable restriction in the system.(3) The iron slab, which is driven by a linear motor, was considered. The relation between the mechanical system and magnetic one was grasped.(4) The method for restricting the resonant vibration in multi-body system was proposed and confirmed. The experimental result showed the possibility to apply it teself to the magnetically levitated distributed structures.The obtained results have been published in transactions and domestic meetings. Less

该研究项目一直针对磁弹性耦合光束系统，磁轴悬挂的多体，磁性悬浮的结构等作为电力机械耦合系统。该系统具有空间分布的连续结构，但是磁力被离散地放置。我们的研究小组研究了电动系统和机械系统之间出现的耦合振动的限制。通过电气系统的方法可以通过使用电力电子设备限制限制。通常，耦合复合系统旨在避免耦合的共振和非线性。该方法没有实现系统的最佳设计。然后，重要的是要根据两种基本研究掌握系统的动力。在该项目中，磁悬浮系统的动力学已通过实验和数值进行了研究。所获得的结果如下：（1）磁铁的更多E位置可通过磁性悬浮技术悬挂空间分布的钢结构。实验和数值讨论证实了这一重要性。特别是，应清楚地理解出在分布式结构中出现的波动动力学，以限制系统元素中的振动。（2）重新考虑机械动力学中的基本方程式以表示耦合振动的特征。通过电源电子设备的控制方法没有显示系统中的显着限制。（3）考虑由线性电动机驱动的铁平板。（4）提出并确认了机械系统与磁性系统之间的关系。（4）限制多体系统中谐振振动的方法。实验结果表明，将其应用于磁性悬浮的分布式结构的可能性。获得的结果已在交易和国内会议上发表。较少的