This paper describes the development, operation and testing of an across-gimbal ambient thermal transport system (GATTS) for carrying cryocooler waste heat across a 2-axis gimbal. The principal application for the system is space-based remote sensing spacecraft with gimbaled cryogenics optics and/or infrared sensors. GATTS uses loop heat pipe (LHP) technology with ammonia as the working fluid and small diameter stainless steel tubing to transport 100–275 W across a two-axis gimbal. The tubing is coiled around each gimbal axis to provide flexibility (less than 0.68 N-m [6 lbf-in] of tubing-induced torque per axis) and fatigue life. Stepper motors are implemented to conduct life cycling and to assess the impact of motion on thermal performance. An LHP conductance of approximately 7.5 W/C was demonstrated at 200 W, with and without gimbal motion. At the time this paper was written, the gimbal had successfully completed over 500,000 cycles of operation with no performance degradation.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Across-Gimbal Ambient Thermal Transport System


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Marland, B. (Autor:in) / Tomlinson, B. (Autor:in) / Stouffer, C. (Autor:in) / Bugby, D. (Autor:in) / Yun, J. (Autor:in) / Davis, T. (Autor:in)

    Kongress:

    31st International Conference On Environmental Systems ; 2001



    Erscheinungsdatum :

    09.07.2001




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Across-Gimbal Ambient Thermal Transport System

    Marland, B. / Yun, J. / Bugby, D. et al. | British Library Conference Proceedings | 2001


    Development and Testing of a Gimbal Thermal Transport System

    Bugby, D. / Marland, B. / Stouffer, C. et al. | British Library Conference Proceedings | 2001


    Development and Testing of a Gimbal Thermal Transport System

    Bugby, D. / Marland, B. / Stouffer, C. et al. | Springer Verlag | 2002


    CONTROL METHOD, GIMBAL, AND GIMBAL SYSTEM

    CHEN JIAYONG / ZENG DEHAO / CHEN XIN et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    GIMBAL SYSTEM

    JONES PETER | Europäisches Patentamt | 2017

    Freier Zugriff