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Dynamics of a superconducting linear slider

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URI: http://hdl.handle.net/10016/39918
ISSN: 1048-9002
DOI: https://doi.org/10.1115/1.4028928
UXXI: AR/0000016661
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Dynamics_JVA_2015_ps.pdf (853.03 KB)
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2015-04-01
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ASME
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Abstract
In this paper, the dynamic behavior of a one degree-of-freedom (DOF) contactless linear slider based on superconducting magnetic levitation is experimentally analyzed. The device is intended for precision positioning of an optic mirror in cryogenic environments. Different prototypes of this device have been tested at cryogenic temperatures (77 K), and their mechanical behavior characterized in the sliding direction for forced and unforced oscillations. Experimental results reveal that the slider is self-stable at the initial equilibrium position and the dynamic behavior fits well an underdamped harmonic oscillator. Finally, the device showed great potential for horizontal vibration isolation, acting as a low-pass filter with a resonance at about 0.9 Hz.
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Damping, Cryogenic mechanism, Nonlinear dynamics, Superconducting magnetic levitation, Vibration isolation
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Valiente–Blanco, I., Pérez-Díaz, J., & Díez-Jiménez, E. (2015). Dynamics of a superconducting linear slider. Journal of Vibration and Acoustics, 137(2).
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