Comprehensive Investigation on Active-Passive Hybrid Isolation and Tunable Dynamic Vibration Absorption

Abstract

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Multiple-Frequency Force Estimation of Controlled Vibrating Systems with Generalized Nonlinear Stiffness

“…Moreover, information of excitation frequencies can be employed to tune efficiently dynamic vibration absorbers. Several configurations of this class of practical vibration control devices known as dynamic vibration absorbers are described in the books [34,35] and references therein.…”

Levitated-body ultra-high pointing accuracy and stability satellite platform of the CHASE mission

“…Active vibrating isolation methods will not only bring the waterbed effect [8] that amplifies low-frequency noise but also introduce complicated coupling among the attitude control loop, flexible accessories vibration control loop, and active micro-vibrating isolation control loop [9,10]. Furthermore, neither the passive nor the active vibrating isolation method can avoid the residual micro-vibration, which is still the major cause of payload data quality deterioration [11].…”

Modeling and Pointing Performance Analysis of Disturbance-Free-Payload System With Flexible Umbilical Connection

“…However, vibration isolation performance of passive isolators is limited within low frequency region (0 to 100 Hz) [9]. In order to address the challenge of low frequency vibration isolation, various studies are dedicated to active isolation techniques [9], [10]. Active isolators have proved to achieve excellent vibration isolation, especially in the low frequency range at the expense of external energy cost and weight increase of spacecraft system.…”