Abstract This paper presents an experimental study on wrinkle reduction in a rectangular membrane structure with elliptical boundary cuts. The structure is subjected to two different heat loads: 145°C and 205°C. Wrinkling induced by the thermal expansion of the membrane is measured using a photogrammetry system and the root mean square of the membrane's surface above a plane of best fit. A fuzzy logic controller is developed to track a desired flatness level when the membrane is subject to either application or removal of a thermal load. Experimental verification is conducted using a membrane structure test facility and the results show that wrinkles have been reduced significantly and quickly using the proposed fuzzy logic controller.

    Highlights ► We perform experiments on a space rectangular membrane structure. ► The membrane is subjected to a varying thermal load creating flatness deviations. ► We design and implement a fuzzy logic controller for active flatness control. ► The controller enables a desired flatness level for the membrane to be tracked.


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    Title :

    Fuzzy logic active flatness control of a space membrane structure


    Contributors:

    Published in:

    Acta Astronautica ; 77 ; 68-76


    Publication date :

    2012-03-09


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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