Dynamics of spacecraft in design deployment of elastic structure of large dimensions
Journal Title: Технічна механіка, Техническая механика, Technical Mechanics - Year 2014, Vol 4, Issue 4
Abstract
The paper deals with the dynamics of the spacecraft, which carries an elastic variable-geometry body, dur-ing the deployment of a compact system of the circular antenna type in accordance with a given program. A research objective is to simulate mechanically and mathematically the dynamic processes. Methods of analytical mechanics of bodies with non-stationary coupling are used. Mechanical and mathematical models of the system under consideration are built, a comprehensive numerical simulation of the deployment dynamics is made and the basic laws of the spacecraft dynamics are derived. The numerical simulation was carried out considering the theorem of changes in a total moment of momentum of the system. Similar problems in the field of the spacecraft dynamics were not earlier investigated for various reasons. They became actual with the advent of small spacecraft, whose dynamics depends essentially on the deployment of the carried transformable structures. The obtained results demonstrate a method of the mathematical description of the dynamics of the system with a programably-changed geometry and the behaviour of a real small spacecraft during the deployment of the large elastic structure. Data of the numerical simulation allow the selection of parameters of the practical deployment law.
Authors and Affiliations
A. Zakrzhevskii, V. Khoroshilov
Keywords
Related Articles
- EP ID EP359195
- DOI -
- Views 69
- Downloads 0
Analysis of ways and models of deployment of space tethered systems
Space tethered systems consisting of satellites conducting with flexible wires (tethers) can form the basis for advanced facilities for removing space debris from near-earth orbit. This raises the question of the deploym...
Development of a combined technology for parts strengthening
The aim of this work is to develop a combined technological process for improving the performance characteristics of units and parts with moving contacting surfaces. The process is based on metal surface property modific...
Synthesis of robust controller for ion beam shepherd control system
The study objective is to synthesize a motion controller for an ion-beam shepherd with respect to space de-bris object during its contactless de-orbiting. It is assumed that the control system has sensors for measuring t...
Numerical simulation of transonic turbulent flow through impeller of axial compressor…
The work discusses the numerical simulation of a transonic turbulent flow through impeller of the Rotor 67 axial compressor with the application of the OpenFOAM open programming code. The selection of the turbulence mode...
Vibrations and stability of motion of a maglev vehicle along straight and curved sections of a plane track structure
Based on the solution of differential equations of motion for the vehicle of the unconventionally designed maglev system developed, which features four lines of superconducting magnets on the vehicle and two lines of tra...