AbstractThe new generation of telecommunication antennas for space applications working at frequencies above 20 GHz (which will be generally manufactured by sandwich structures) needs an accurate thermostructural design due to the envisaged increase of the dimensions of the reflectors and the related decrease of the required RMS thermal distortion.In an integrated design which takes into account the reciprocal influence of thermal and structural aspects, the thermal expansion coefficient (C.T.E.) of the structures which are part of the reflector assembly, is a very important parameter.A good prediction of this value is a contribution to an accurate estimate of the electrical performance of the antenna system in the space environment. This work describes a prediction method to evaluate the C.T.E. of a sandwich validated by some experimental results and checked by an analytical study. Numerical results illustrate the procedures; graphs and appendices complete the work.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Prediction of thermal expansion coefficients of sandwiches using finite elements methods validated by experimental test results


    Contributors:

    Published in:

    Acta Astronautica ; 10 , 5-6 ; 409-427


    Publication date :

    1983-01-06


    Size :

    19 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    HOT SANDWICHES

    RAWUKA, A. / BURTON, T. L. | SAE Technical Papers | 1954


    Septumization of honeycomb sandwiches

    BUTLER GEOFFREY ALLEN / LAN JUSTIN HONSHUNE / GERKEN NOEL T et al. | European Patent Office | 2017

    Free access


    Septumization of honeycomb sandwiches

    BUTLER GEOFFREY ALLEN / LAN JUSTIN HONSHUNE / GERKEN NOEL T et al. | European Patent Office | 2019

    Free access

    Sandwiches mit Noppenwabenkern: Leichtbau

    Bauer,M. / Friede,P. / Uhlig,C. et al. | Automotive engineering | 2006