A1 Journal article (refereed), original research

A parallel algorithm for the simulation of controlled motion of space tether systems


Open Access publication

LUT Authors / Editors

Publication Details
Authors: Zhidchenko Victor, Kovartsev Alexander
Publisher: IOP Publishing: Conference Series
Publication year: 2019
Language: English
Related Journal or Series Information: Journal of Physics: Conference Series
Volume number: 1368
ISSN: 1742-6588
eISSN: 1742-6596
JUFO-Level of this publication: 1
Open Access: Open Access publication

Abstract

Simulation of the controlled motion of space tether systems differs
significantly from the free motion case. Tether deployment increases its
length and adds new points into the discrete model of the tether. A set
of dynamic equations is expanded with equations that describe the
motion of the new points. The necessary condition at each step is the
consistency of the system. Tether deployment is supervised by the
control system which limits the tether length. The problem arises of
solving a system of differential equations with variable and increasing
number of equations. In this paper a parallel algorithm for simulating
the controlled motion of space tether systems is designed. The parallel
algorithm provides an ability to split the tether to such number of
points that the model becomes similar to the model with distributed
parameters. As a result, the simulation of several modes of tether
motion unavailable for other methods becomes possible. The estimation of
speedup provided by the algorithm is implemented. It shows that the
speedup is comparable with the more simple case of the free motion
simulation. Computational experiments have been carried out for the
algorithm performance evaluation.


Last updated on 2020-17-01 at 17:04