Shape control of large reflecting structures in space
- Paper number
IAC-11,C2,3,6,x10298
- Author
Prof. Anatoliy Alpatov, Institute of Technical Mechanics of the National Academy of Science and National Space Agency of Ukraine, Ukraine
- Coauthor
Dr. Vjacheslav Gusynin, National Space Agency of Ukraine (NSAU), Ukraine
- Coauthor
Dr. Pavel Belonozhko, Institute of Technical Mechanics of the National Academy of Science and National Space Agency of Ukraine, Ukraine
- Coauthor
Dr. Sergey Khoroshilov, Institute of Technical Mechanics of the National Academy of Science and National Space Agency of Ukraine, Ukraine
- Coauthor
Dr. Alexandr Fokov, Institute of Technical Mechanics of the National Academy of Science and National Space Agency of Ukraine, Ukraine
- Year
2011
- Abstract
Large reflecting structures are functionally necessary element of perspective space systems [1]. Development of satellite communication, radio astronomy, solar energy, investigation of the Moon, planets of Solar system and deep space determines the necessity for characteristic improvement of large-sized space reflectors. The variant when reflecting surface is fastened on a cellular frame, which shape is provided by the cable tension system, is a perspective constructive decision for development of various technical systems. Exacting requirements are imposed to reflecting surface accuracy of such structures. These requirements determine the shape control topicality of the reflector frame. Research results of the shape control problem for the large reflecting surface of large space structure [2-4] are submitted. Different factors causing shape distortion of the reflecting surface in various operating modes [3-5] are considered. The approach for forming investigation, which is based on decomposition of mechanical system and allocation independent shape-building elements, is offered. Applicability conditions for using quasistatic models are determined on the basis of the feature structure analysis in view of results of imitating modeling dynamics . Discrete and continual models for shape-building are developed. Algorithms for reflecting surface shape control are proposed and variants of their technical realization [4-5] are considered. Efficiency of the models and algorithms is confirmed by the comparative analysis of the results of computer simulations. \begin{center}References\end{center} 1. The large reflecting surfaces in space. Antennas of a satellite communication / A.P.Alpatov, P.A.Belonozhko, P.P.Belonozhko, A.A.Vitushkin, A.A.Fokov // System technologies - 2007. - № 3 (50). - P. 73 - 87. 2. Matematische Modellierung der Konfiguration der formbildenden Elemente der ausgedehnten Weltraumkonstruktionen mit den Tauelementen / Alpatov A.P., Belonoshko P.A., Belonoshko P.P. // Book of Abstracts. Annual Meeting GAMM-99. - Metz (France), 1999. - P. 17 - 18. 3. Algorithms for shape stabilization of the surface of the cable reflector / P.P.Belonozhko // Technical mechanics. - 2004. - № 2. - P. 50 - 55. 4. Dynamics modelling of detached meridian line of theof frame-bearing type reflector / P.A.Belonozhko, P.P.Belonozhko, A.A.Fokov // Problems of control and computer science. - 2005. - № 1. - P. 115 - 125. 5. Investigation of large deployable reflector thermal strains in space conditions/ Alpatov A.P., Khoroshilov S.V. // Proceedings of the International Scientific Conference "Advanced Lightweight Structures and Reflector Antennas", 14-16 October 2009, Tbilisi, Georgia. -P. 177-184.- Abstract document
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