Parametrically excited horizontal and rolling motion of a levitated body above a high-T/sub c/ superconductor

Sugiura, Toshihiko; Aoyagi, Takaaki; Ura, Hiroki; Yoshizawa, Masatsugu

doi:10.1109/tasc.2003.813057

Cited by 19 publications

(7 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The normal modes of oscillation are, rather, swing along the superconductor surface normal and two combinations of the twist and swing modes. These modes of oscillation correspond to the "rolling" modes described in Sugiura et al [11]. Frequencies and stiffnesses of these modes are shown here as "translation" or "rotation" according to the coordinate with which the mode shape is best aligned.…”

Section: Pendulum Mode Modificationmentioning

confidence: 68%

Flux-Pinned Interfaces for the Assembly, Manipulation, and Reconfiguration of Modular Space Systems

Shoer

2008

AIAA Guidance, Navigation and Control Conference and Exhibit

View full text Add to dashboard Cite

Non-contacting interactions between permanent magnets and superconductors known as "flux pinning" provide a novel way to fix many modular space systems in desired relative positions and orientations, from space stations to close-proximity formations. When cooled appropriately, these flux-pinned interfaces require no power or active control and very little mass but provide very high mechanical stiffness (Ͼ200 N/m for a few hundred grams of material) and damping (2% of critical) between modules, making the technology ideal for in-orbit assembly applications. We describe new measurements and simulations to characterize these values for spacecraft applications. Flux-pinned interfaces have so far achieved inter-module separations in the 8-10 cm range with ϳ100 g of mass on each module, with the prospect of larger separations. We also discuss several means to actuate the noncontacting couplers, which is a first step toward the development of devices for the noncontacting manipulation and reconfiguration of modular space systems.

show abstract

Section: Pendulum Mode Modificationmentioning

confidence: 68%

Flux-Pinned Interfaces for the Assembly, Manipulation, and Reconfiguration of Modular Space Systems

Shoer

2008

AIAA Guidance, Navigation and Control Conference and Exhibit

View full text Add to dashboard Cite

show abstract

“…The pendulum setup largely removes gravity from the dynamic model. Other flux pinning experiments treating the pinned pair as a dynamic system 14,15 have been performed, but with the application of levitating systems in mind. In those situations, the forces on the magnet represent a balance between gravity and interactions with the superconductor.…”

Section: Methodsmentioning

confidence: 99%

A Flux-Pinned Magnet-Superconductor Pair for Close-Proximity Station Keeping and Self-Assembly of Spacecraft

Shoer

Peck

2007

AIAA Guidance, Navigation and Control Conference and Exhibit

View full text Add to dashboard Cite

“…Just as Cansiz et al discussed in [23], the thermodynamical, magnetomechanical and the magnetic field inhomogeneity should be taken into consideration. Furthermore, Sugiura et al discussed in [24] that the magnet levitated on the HTS bulk has two vibration modes of linearly coupled horizontal translation and roll motion. These works provide good reference for the drift study in dynamic aspects.…”

Section: The Regularity Of Ldmentioning

confidence: 99%

Vertical and lateral drift behavior of a linear superconducting magnetic bearing system under multi-operating modes

Lei

Ling

Wang

et al. 2020

Supercond. Sci. Technol.

View full text Add to dashboard Cite

Since the discovery of high temperature superconducting (HTS) material, HTS maglev with the characteristics of self-stabilization and zero magnetic drag, has shown excellent potential for future transportation applications. However, this stability characteristic of HTS maglev is difficult to fully ensure in a spatial position, because of the magnetic flux flow and creep of the HTS bulk. Hence, to study the drift phenomenon of the HTS maglev vehicle excited by this unguaranteed stability characteristic, the linear superconducting magnetic bearing system, composed of a ring permanent magnetic guideway line (double track) and a HTS maglev vehicle, the 'Super-Maglev', was utilized. This system aims to explore the drift phenomenon in the vertical and lateral directions of the whole maglev vehicle under various operating conditions: different running speeds, unbalanced loading and cyclic loading situations. As an illustration induced by the experimental results, the lateral drift (LD) at a faster running speed (15 km h −1 ) is twice than that at 10 km h −1 . Also, compared to the constant load condition, the vertical drift (VD) under cyclic load is larger. Moreover, with time going by, both LD and VD tend to be stable. Specifically, for the LD curve, it can be fitted by an exponential function. Finally, all the above experimental results support references for the future design and study of linear SMB systems.

show abstract

Parametrically excited horizontal and rolling motion of a levitated body above a high-T/sub c/ superconductor

Cited by 19 publications

References 6 publications

Flux-Pinned Interfaces for the Assembly, Manipulation, and Reconfiguration of Modular Space Systems

Flux-Pinned Interfaces for the Assembly, Manipulation, and Reconfiguration of Modular Space Systems

A Flux-Pinned Magnet-Superconductor Pair for Close-Proximity Station Keeping and Self-Assembly of Spacecraft

Vertical and lateral drift behavior of a linear superconducting magnetic bearing system under multi-operating modes

Contact Info

Product

Resources

About