The thermal-control material of spacecraft is easily impacted by micrometeoroid and space debris in orbit. Optical solar reflector is a kind of silvered glass second-surface mirrors, which are applied as spacecraft outer-surface material to reflect sunlight. A system for launching flyer using a Q -switched Nd:YAG laser with a flattop-appearance beam has been developed for simulating space-debris-impact effects on optical solar reflector. The velocities of the flyer were obtained by laser no-contact velocity-measurement apparatus based on the principle of laser light curtain, which could measure impact velocity unto 10    km / s with a high accuracy of 95%. By launching three kinds of flyer diameter and five kinds of flyer thickness, 56 impact tests have been conducted in flyer velocity ranging from 3.15 to 8.77    km / s . The results had shown that the splashed-zone diameter of the impacted sample increased obviously, as impact velocity was improved at the same flyer diameter and flyer thickness. The surface thermal-radiation-property degradation was obviously as the change of flyer velocity, flyer thickness, and flyer diameter.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Thermal-Control-Material-Impact Effect by Micron Space Debris


    Contributors:
    Yang, Jiyun (author) / Ma, Ziliang (author) / Feng, Weiquan (author)

    Published in:

    Publication date :

    2016-11-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





    The Development of Laser-Driven Flyer System and Research on Micron Space Debris Impact Effects

    Yang, J.Y. / Cao, Y. / Gong, Z.Z. | British Library Conference Proceedings | 2013


    Growth of Micron-Sized Space Debris During the Years 1983-1990

    Maag, C. R. / Linder, W. K. / University of Kent at Canterbury; Unit for Space Sciences | British Library Conference Proceedings | 1992


    Resolved 350 micron images of famous debris disks

    Dowell, Charles Darren / Marsh, K. / Velusamy, T. et al. | NTRS | 2005


    Active debris removal by micron-scale dust injection

    Ganguli, Gurudas / Crabtree, Christopher / Rudakov, Leonid et al. | IEEE | 2012