Micro-vibration suppression methods and key technologies for high-precision space optical instruments

Micro-vibration caused by disturbance sources onboard spacecraft can severely degrade the working environment of high-precision space optical instruments (HPSOIs) in orbit. Some notable micro-vibration suppression methods have been developed in recent decades. Micro-vibration suppression of spacecraft mainly involves three techniques: disturbance source suppression, payload isolation and transfer path suppression. The first two techniques, together forming one of the most practical suppression methods for micro-vibration suppression tasks, are mainly focused on isolation, whereas the third is a novel suppression method developed for the integrated optical satellite (IOS). Two combinations of them have been effectively used in some spacecraft for a number of years. In these three micro-vibration suppression techniques, the inherent structural performance can be adjusted to deal with variations in the space environment. Usually, passive isolation techniques are deployed in aerospace engineering. Active isolators, however, are often proposed to deal with the low-frequency vibration common in spacecraft. Some emerging advanced suppression methods that exploit the benefits of IOS for microvibration have also been reported in the literature. This represents an interesting and highly promising approach to solve some challenging problems in the field. This work serves as an effective state-of-the-art review of the micro-vibration suppression methods and/or technologies that have been developed, mainly over the last few years, specifically for or that potentially could be used for micro-vibration suppression onboard spacecraft with HPSOIs.

Automated summary

Micro-vibration caused by disturbance sources onboard spacecraft can severely degrade the working environment of high-precision space optical instruments (HPSOIs) in orbit. Notable micro-vibration suppression methods have been developed in recent decades, mainly focusing on disturbance source suppression, payload isolation, and transfer path suppression. Passive isolation techniques are commonly used in aerospace engineering, while active isolators are proposed for dealing with low-frequency vibrations in spacecraft. Additionally, emerging advanced suppression methods utilizing the advantages of IOS have also been reported.