Wire-connected multi-ring vibration-isolating device applicable to spacecraft

Abstract

The invention provides a wire-connected multi-ring vibration-isolating device applicable to a spacecraft. The wire-connected multi-ring vibration-isolating device applicable to the spacecraft comprises nuts, an outer ring, connecting nails, one or more inner rings and memory alloy pins, wherein the memory alloy pins are made of memory alloy; the extension and contraction of the memory alloy pins are controlled by temperature control measures; if only one inner ring is provided , the outer ring and the inner rings are concentrically connected together through the connecting nails and the memory alloy pins; if more than one inner ring is provided and the outer ring and the inner rings are concentric, the outer ring and the inner ring adjacent to the outer ring are connected together through the connecting nails and the memory alloy pins and the inner rings are connected together through the connecting nails; and if the outer ring and the inner rings are not concentric, the outer ring and each inner ring are connected together through the connecting nails and the memory alloy pins and the inner rings are connected together through the connecting nails. The wire-connected multi-ring vibration-isolating device applicable to the spacecraft can meet a requirement on the connecting rigidity between the inner rings and the outer ring in a zero-gravity environment and can achieve a stable vibration-isolating purpose.

Description

technical field [0001] The invention relates to a vibration isolation device, in particular to a wire-connected multi-ring vibration isolation device suitable for spacecraft, and belongs to the technical field of spacecraft vibration isolation. Background technique [0002] With the development of high-resolution earth observation satellite technology and space-based laser communication technology, high-precision payloads on satellites, such as high-resolution cameras and laser communication terminals, are becoming more and more sensitive to the micro-vibration of spacecraft in orbit. . These microvibrations are generally caused by the dynamic imbalance in the work of the driving mechanism, attitude control device, etc., which usually lead to a significant decline in the working performance of the payload, and even lead to the complete failure of the payload in severe cases. Therefore, in order to ensure the stable operation of the payload, it is necessary to install a vibr...

AI Technical Summary

Problems solved by technology

Common vibration isolation devices include viscous fluid vibration isolation devices, electromagnetic vibration isolation devices, and viscoelastic vibration isolation devices. These vibration isolation devices often have relatively high requirements for shape and position accuracy during processing, and the composition is relatively complicated. Therefore, The development cost is relatively high, and it is generally necessary to use several vibration isolation devices in groups to achieve the purpose of vibration isolation

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