Vibration Characteristics of Flexible Steel Plate on Proposed Magnetic Levitation System Using Gravity

IF 1.9 Q3 ENGINEERING, MECHANICAL
Vibration Pub Date : 2022-12-18 DOI:10.3390/vibration5040054
A. Endo, Rintaro Itoyama, J. Kuroda, Daigo Uchino, K. Ogawa, K. Ikeda, T. Kato, T. Narita, H. Kato
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引用次数: 1

Abstract

Flexible steel plates are generally transported by rollers; however, the contact between the rollers and the steel plate degrades the surface quality of the plate. To solve this problem, noncontact transportation of steel plates using electromagnetic force has been proposed. However, ultrathin flexible steel plates can easily fall owing to deflection. A magnetic levitation system using electromagnets installed in the horizontal direction has also been proposed to improve the levitation performance of a conventional system. However, it is difficult to control vibrations with such a system because flexible steel plates are elastically deformed into complex shapes by gravity. Therefore, an electromagnetic levitation system was proposed, wherein electromagnets were installed near the edge of the steel plate such that it could be controlled with noncontact grip, such as by allowing one side of the steel plate to hang. This system is expected to improve levitation stability because the moment of inertia increases with vertical levitation and simplifies the control system. In addition, this system actively uses gravity acting on a steel plate to decrease its deflection. The use of gravity to suppress deflection is novel. In this study, the feasibility of magnetic levitation using the proposed system was investigated using magnetic field analysis. Its usefulness was investigated experimentally using a constructed magnetic levitation system. In addition, it was found that a magnetic levitation system that maintains the standing position generates a peculiar vibration.
柔性钢板在重力磁悬浮系统中的振动特性
柔性钢板一般采用滚筒输送;然而,轧辊与钢板之间的接触会降低钢板的表面质量。为了解决这一问题,提出了利用电磁力进行钢板非接触输送的方法。然而,超薄柔性钢板容易因挠曲而掉落。为了改善传统磁悬浮系统的悬浮性能,还提出了一种采用水平方向安装电磁铁的磁悬浮系统。然而,这种系统很难控制振动,因为柔性钢板在重力作用下会弹性变形成复杂的形状。因此,提出了一种电磁悬浮系统,其中电磁铁安装在钢板的边缘附近,这样就可以用非接触式抓地力来控制,例如通过允许钢板的一侧悬挂。由于惯性矩随垂直悬浮的增加而增加,该系统有望改善悬浮稳定性,并简化控制系统。此外,该系统积极利用重力作用在钢板上,以减少其挠度。利用重力来抑制偏转是新颖的。在本研究中,利用磁场分析研究了该系统磁悬浮的可行性。利用自制的磁悬浮系统对其有效性进行了实验研究。此外,研究人员还发现,保持站立位置的磁悬浮系统会产生一种特殊的振动。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
3.20
自引率
0.00%
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0
审稿时长
10 weeks
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