AbstractA rotationally symmetric receptacle is touching down with a high horizontal but small vertical velocity component on a lunar slide-and-roll landing strip. The subsequent process of harenodynamic braking is characterized by two main quantities: the maximum angular rate imparted to the receptacle and the length of the path covered before it comes to a halt. We give a phenomenological description of the dynamics of this process and solve the resulting, highly non-linear equations for the case of a landing strip that is not compressible. A numerical analysis shows that practical values of the maximum frequency of rotation and the landing strip length for a receptacle radius of 1 m and mass of 1 ton are of the order of 50 Hz and 1.5–3 km, respectively. Peripheral mass concentration reduces the maximum frequency as well as the landing strip length substantially.


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    Titel :

    Harenodynamic landing of rotationally symmetric bodies


    Beteiligte:
    Lemke, E.H. (Autor:in)

    Erschienen in:

    Acta Astronautica ; 11 , 10-11 ; 673-678


    Erscheinungsdatum :

    1984-01-06


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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