This study is concerned with a new method to apply consistent and known pretension to silicone rubber membranes intended for micro air vehicles. Pretension has a marked effect on the static and dynamic responses of membrane wings and controls the overall deflections, as such control and measurement of the membrane pretension are important. The technique developed employs thermal expansion to set the pretension and digital image correlation to assess the resulting spatial strain field. Two different frame geometries were fabricated to evaluate the technique. For open-cell frames, the pretension was not uniform, whereas it was for closed-cell frames. Results show developed full-field stress and strain fields as a function of membrane attachment temperature and frame geometry along with experimental iterations to prove repeatability. The membranes can be stretched to a specific pretension according to the temperature at which it adheres to frames.


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    Titel :

    Controlling pretension of silicone membranes on micro air vehicle wings


    Weitere Titelangaben:

    Steuerung der Vorspannung von Siliconmembranen von Flügeln von Mikroluftfahrzeugen


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2014


    Format / Umfang :

    10 Seiten, 13 Bilder, 1 Tabelle, 13 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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    Controlling Pre-tension of Silicone Membranes on Micro Air Vehicle Flexible Wings

    Abudaram, Yaakov / Ifju, Peter / Hubner, James et al. | AIAA | 2012


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