Dynamics modeling and experiment of a large space umbrella truss structure

Guo, Jiaojiao; Sun, Jialiang; Guo, Wei; Li, Xinyuan; Jin, Dongping

doi:10.1016/j.asr.2023.01.048

Cited by 9 publications

(1 citation statement)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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. Due to their large-scale sizes and masses, the gravity gradient torque of large space structures may seriously affect their attitude stability and the success of their on-orbit missions.…”

Section: Introductionmentioning

confidence: 99%

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

Tang,

Sun,

Jin

2024

Preprint

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%