Weipeng Hu, Xinying Yan, Zhuangzhuang Li, Fan Zhang and
Chuan Xiao
Vol. 20 (2025), No. 5, 587–604
DOI: 10.2140/jomms.2025.20.587
Abstract
The coupled dynamics of extremely large deformations and small deformations in
tethered satellite towing systems pose significant challenges in dynamic analysis. To
address this, the present study develops an MPM-FEM framework by integrating the
advantages of the finite element method (FEM) in solving small-deformation
problems and the material point method (MPM) in simulating extremely large
deformations. This hybrid approach is specifically designed to model the dynamic
behavior of tethered satellite towing systems. First, the theoretical framework of the
MPM-FEM containing the beam element as well as the rod element is established. In
the framework, procedures for incorporating beam and rod elements into the MPM
formulation are presented in detail. Subsequently, the validity of the proposed
method is rigorously verified through two benchmark cases: a tether oscillation model
and a cantilever beam impact dynamics model. Finally, MPM-FEM is applied
to simulate the dynamic process of a tethered satellite towing a flexible
beam. Key results include time-resolved displacement-deformation profiles
of the towing system and the temporal evolution of total energy, kinetic
energy, and strain energy. These findings provide critical insights for the
design of dynamic systems and control strategies in tethered satellite towing
applications.
Keywords
material point method, finite element method, tethered
satellite towing system, large deformation