Abstract
A deployable structure based on the tension truss concept is used to develop unfurlable, large-aperture reflectors for space applications. The paraboloid surface of the reflector is approximated by a reflective mesh attached to a cable network consisting of triangular facets. Existing approaches try to minimize the root mean square error between the faceted surface and the local quadratic approximation of the paraboloid for designing the cable net. An alternate approach for computing the surface accuracy of the faceted reflector surface is proposed here based on the proximity of the reflected rays to the receiver of the antenna. The offset distance of reflected rays from the focus or offset error is a more geometrically relevant indicator for determining the accuracy of the facets. An offset paraboloid reflector of 3 m aperture diameter is designed for which the surface errors are computed using both the approaches. These errors are computed for individual facets, and their distribution throughout the reflector surface is compared.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Miura K, Miyazaki Y (1986) Concept of the tension truss antenna. In: 37th Congress of the International Astronautical Federation 28(6)
Tibert AG (2003) Optimal design of tension truss antennas. In: Structures, structural dynamics, and materials conference, Virginia, AIAA 2001-1629
Morterolle S, Maurin B, Quirant J, Dupuy C (2012) Numerical form-finding of geotensoid tension truss for mesh reflector. Acta Astronaut 76:154–163
Agarwal PK (1981) Preliminary design of large reflector with flat facets. IEEE Trans. Antennas Propag AP-29(4)
Yuan S, Yang B Improvement of surface accuracy for large deployable mesh reflectors. In: AIAA/AAS Astrodynamics specialist conference, AIAA 2016-5571. https://doi.org/10.2514/6.2016-5571
Acknowledgements
This work was supported in part by Electronics and Radar Development Establishment, Bengaluru, a laboratory of Defence Research and Development Organization (LRDE-DRDO) India.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2022 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Siddesh, S.S., Harisankar, R., Ananthasuresh, G.K. (2022). Surface Profile Accuracy of Deployable Mesh Reflectors Based on Focal Offset. In: Kumar, R., Chauhan, V.S., Talha, M., Pathak, H. (eds) Machines, Mechanism and Robotics. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-16-0550-5_129
Download citation
DOI: https://doi.org/10.1007/978-981-16-0550-5_129
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-16-0549-9
Online ISBN: 978-981-16-0550-5
eBook Packages: EngineeringEngineering (R0)