Space telescopes have been used for acquiring images, which allows us to understand planets and the universe. Observing targets that have not been found is a challenging purpose in future space observation missions. As space telescopes observe a target existing in deep space, vibration and heat generated by the bus part cause deviation and blur on observed images. In this paper, a contactless micro-vibration isolator using the flux pinning effect is proposed to suppress the internal disturbances such as vibration and heat for future space observation missions. The flux pinning effect occurs between a type II superconductor and a material generating magnetic flux such as a magnet. Relative distance and attitude between a type II superconductor, which is cooled below critical temperature, and a magnet are maintained passively by the flux pinning force. The flux pinning force has nonlinear spring damping characteristics. Based on those characteristics of the flux pinning effect, the proposed contactless micro-vibration isolator suppresses passively micro-vibration and heat propagation. The proposed isolator consists of permanent magnets, type II superconductors, and metal plates. The aim of this paper is to confirm the feasibility of the proposed isolator numerically. A numerical calculation validated by an experiment is used for understanding the flux pinning effect, and the performance of the proposed isolator is discussed.
A Contactless Micro-Vibration Isolator Using the Flux Pinning Effect for Space Telescopes
Journal of Spacecraft and Rockets ; 59 , 2 ; 651-659
2022-03-01
Article (Journal)
Electronic Resource
English
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