Metallic triangular rollable and collapsible (TRAC) booms have deployed two Cubesat-based solar sails in low Earth orbit, making TRAC booms the most popular solar sail deployment method in practice. This paper presents some concerns and solutions surrounding the behavior of these booms in the space thermal environment. A 3.5-cm-tall, 4-meter-long TRAC boom of Elgiloy cobalt alloy, when exposed to direct sunlight in a 1 AU deep space environment, has a predicted tip motion of as much as 0.5 meters. Such large thermal deflections could generate unacceptable distortions in the shape of a supported solar sail, making attitude control of the solar sail spacecraft difficult or impossible. As a possible means of mitigating this issue, the thermal distortion behaviors of three alternative material TRAC booms are investigated and compared with the uncoated Elgiloy baseline boom. A tenfold decrease in induced curvature is shown to be possible relative to the baseline boom. Potential thermal distortions of the LightSail-A solar sail TRAC booms are also examined and compared, although inconclusively, with available on-orbit camera imagery.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Thermal Deformation of Very Slender Triangular Rollable and Collapsible Booms


    Beteiligte:

    Kongress:

    2016 AIAA SciTech Conference ; 2016 ; San Diego, CA, United States


    Erscheinungsdatum :

    2016-01-04


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Scalability of Triangular Rollable and Collapsible Booms

    Cox, Kevin / Medina, Kamron A. | AIAA | 2019


    Characterization of Ultra-Thin Composite Triangular Rollable and Collapsible Booms

    Leclerc, Christophe / Wilson, Lee L. / Bessa, Miguel A. et al. | AIAA | 2017


    Interface Failure Analysis of Triangular Rollable and Collapsible (TRAC) Booms

    Hasanyan, Armanj D. / Leclerc, Christophe / Pellegrino, Sergio | AIAA | 2020


    Thermal deformation of very slender TRAC booms

    Stohlman, Olive R. / Loper, Erik | AIAA | 2016


    CHARACTERIZATION OF ULTRA-THIN COMPOSITE TRIANGULAR ROLLABLE AND COLLAPSIBLE BOOMS (AIAA 2017-0172)

    Leclerc, Christophe / Wilson, Lee L. / Bessa, Miguel A. et al. | British Library Conference Proceedings | 2017