Active vibration control based on the equivalent dynamic model of a large space telescope truss structure

Tang, Yingzhuo; Liu, Xiaofeng; Cai, Guo‐Ping; Liu, Xiang; You, Chaolan; Yao, Saijin

doi:10.1007/s40435-022-01098-x

Cited by 4 publications

(2 citation statements)

References 30 publications

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“…Seboldt et al [12] put forward the concept of solar sail tower space solar power station. Tang et al [13] studied the equivalent dynamic model of a large space telescope truss structure. Guo et al [14] designed a kind of large space umbrella truss structure and studied its nonlinear dynamic characteristics.…”

Section: Introductionmentioning

confidence: 99%

Stability Analysis and Dynamic Simulations for Gravity Gradient of a Large Rigid Space Structure

Tang,

Sun,

Jin

2024

Preprint

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The attitude dynamics and orbit dynamics of large rigid space structures are coupled with each other under gravity gradient, which may affect the stability of the large rigid space structures. In this paper, the gravity gradient stability of a large rigid space structure is studied under both small and large disturbances. Based on the rigid body dynamics and orbit dynamics, an accurate dynamic model without any linearization of the large rigid space structure is established via the natural coordinate formulation (NCF), which is able to describe the large overall motions of the structures. By using the generalized-α algorithm, the gravity gradient stability of the large rigid space structure is simulated and analyzed via various examples, including the influence of large disturbance angles, the positions at the stabilization and unstabilization regions. Finally, the relationship between spinning stability and gravity gradient stability is also investigated via a large spinning space structure.

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Section: Introductionmentioning

confidence: 99%

Stability Analysis and Dynamic Simulations for Gravity Gradient of a Large Rigid Space Structure

Tang,

Sun,

Jin

2024

Preprint

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“…Liu et al [5] used proportional differential control for active control of a multi-layer planar electric elastic actuator. Tang et al [6] used a linear quadratic regulator for the vibration of the space telescope. Sheng et al [7] designed a nonlinear damper using the velocity and displacement of the system as control raw and explored the selection of control parameters.…”

Section: Introductionmentioning

confidence: 99%

Construction and Experimental Research of Active Vibration Control System of Voice Coil Motor with Integral Acceleration Feedback

Pu,

Xiong,

Wang

2024

J. Phys.: Conf. Ser.

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The skyhook control technology is widely used in active vibration isolation and has proven effective. However, the absolute speed sensor used in the skyhook control technology is easily affected by external factors and may be easily damaged. There are few application scenarios for the skyhook control technology. To overcome this limitation, a brand-new approach is proposed for the design of an isolator that involves a voice coil motor (VCM) and an accelerometer. First of all, the proposed structure is introduced, and the dynamic model is established to achieve an analytical solution. Then, an integral acceleration feedback (IAF) algorithm is introduced and simulations are carried out. Finally, a prototype is constructed to verify its vibration isolation performance. From the experimental results, it can be concluded that the proposed active vibration control system (AVCS) can effectively reduce the peak value near the natural frequency, with a peak value reduction of 14.77 dB. Compared with the simulation results, the peak change rate at 12.5 Hz is 3.92%. AVCS with IAF can be applied to more application scenarios with a similar isolation effect to skyhook control technology.

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Vibration-attitude integrated control of large membrane diffraction space telescope

Yu,

Liu,

Cai

et al. 2024

Acta Astronautica

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Active vibration control based on the equivalent dynamic model of a large space telescope truss structure

Cited by 4 publications

References 30 publications

Stability Analysis and Dynamic Simulations for Gravity Gradient of a Large Rigid Space Structure

Stability Analysis and Dynamic Simulations for Gravity Gradient of a Large Rigid Space Structure

Construction and Experimental Research of Active Vibration Control System of Voice Coil Motor with Integral Acceleration Feedback

Vibration-attitude integrated control of large membrane diffraction space telescope

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