A stepper motor mechanism activates the azimuth and elevation direction of an X-band downlink antenna-pointing mechanism for effective data transfer from a satellite to a ground station. The stepper motor activation, and an imperfect intermeshed teeth harmonic-drive-gear configuration of the antenna mechanism may induce micro-jitter in the system, which can seriously affect the image quality of high-resolution observation satellites. In this study, to confirm the feasibility of on-orbit micro-jitter isolation of a whole-antenna mechanism assembly, a new type of passive vibration isolation system was proposed and investigated. This proposed system uses a pseudoelastic shape memory alloy compressed mesh washer isolator. The basic characteristics of the isolator were measured by performing static test on the isolator. The effectiveness of the design was also demonstrated via a micro-jitter measurement test, with and without the isolation system.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Experimental feasibility study for micro-jitter attenuation of stepper-actuated X-band antenna-pointing mechanism by using pseudoelastic SMA mesh washer


    Beteiligte:
    Oh, Hyun-Ung (Autor:in) / Jeon, Su-Hyeon (Autor:in) / Kim, Tae-Hong (Autor:in) / Kim, Yong-Hoon (Autor:in)

    Erschienen in:

    Smart Materials and Structures ; 24 , 4 ; 045010/1-045010/12


    Erscheinungsdatum :

    2015


    Format / Umfang :

    12 Seiten, 11 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Micro Vibration Improvement of a Stepper Actuated Mechanism

    Kozilek, H. / Specht, B. / Yong, S.-S. et al. | British Library Conference Proceedings | 2013


    Analysis and Experimental Study on Dynamic Behavior of Stepper-Actuated Dual-Axis Data Transmission Antenna

    Zhaomingyue Zheng / Wei Cheng / Ming Li et al. | DOAJ | 2021

    Freier Zugriff

    Co-Design of Strain-Actuated Solar Arrays for Precision Pointing and Jitter Reduction

    Chilan, Christian M. / Herber, Daniel R. / Nakka, Yashwanth K. et al. | AIAA | 2016