@inproceedings{f52ef2f9ccfd458fa1a18bb6c57a0f2f,
title = "Deployment dynamics of a large-scale ring truss mesh antennas",
abstract = "The deployment dynamics of a large-scale satellite mesh reflector is studied via Absolute Nodal Coordinate Formulation (ANCF). The large scale multibody system model is firstly decomposed into several independent subsystems by cutting its joints or an ANCF element grid. Then, the static condensation method is used to eliminate each subsystem's internal generalized coordinates and Lagrange multipliers for joint constraint equations. To reduce the order of these simultaneous linear equations, the subsystems are further divided by using the multilevel decomposition approach. The equations of motion are solved by using an OpenMP based parallel generalized-alpha algorithm. Finally, the dynamics computation for a 500 seconds deployment process of a complex AstroMesh reflector with over 190, 000 generalized coordinates is efficiently achieved within 78 hours.",
keywords = "Absolute Nodal Coordinate Formulation (ANCF), Deployment dynamics, Mesh reflector, Parallel algorithm, Static condensation",
author = "Pei Li and Cheng Liu and Qiang Tian and Haiyan Hu",
year = "2015",
language = "English",
series = "Proceedings of the ECCOMAS Thematic Conference on Multibody Dynamics 2015, Multibody Dynamics 2015",
publisher = "International Center for Numerical Methods in Engineering",
pages = "274--285",
editor = "Font-Llagunes, {Josep M.}",
booktitle = "Proceedings of the ECCOMAS Thematic Conference on Multibody Dynamics 2015, Multibody Dynamics 2015",
note = "2015 ECCOMAS Thematic Conference on Multibody Dynamics, Multibody Dynamics 2015 ; Conference date: 29-06-2015 Through 02-07-2015",
}