Wrapping Dynamics of a Tendon-Actuated Rollable Membrane Satellite Based on ALE-ANCF
Chuanxu Tang,Dongping Jin, Jialiang Sun
Abstract：To address the need for compliant wrapping of non-cooperative on-orbit targets, a tendon-actuated rollable membrane satellite is proposed. The proposed membrane satellite is equipped with distributed actuating units, which enable shape-adaptive deformation according to the geometry and motion state of the target. First, a coupled dynamic model of the rollable membrane satellite is established based on the absolute nodal coordinate formulation (ANCF) within the arbitrary Lagrangian-Eulerian (ALE) description and the natural coordinate formulation (NCF), so that the large deformation of flexible components and the overall motion of rigid bodies can be described in a unified framework. Then, to accurately characterize the motion and deformation of the actuating units, an equivalent dynamic model of the bending actuator is developed and validated through theoretical analysis, numerical simulations, and ground experiments. Finally, dynamic simulations of the on-orbit target wrapping process under different motion states are carried out to verify the effectiveness and feasibility of the proposed membrane-based wrapping system.
文章链接：https://www.sciencedirect.com/science/article/pii/S1270963826016391
