Firm attachment between loose objects is a critical issue in the absence of gravity like, e.g. on-board a space station. This fundamental issue of space travel led to the success of the bioinspired Velcro which is based on a statistical anchoring between a 'hook' surface and a 'loop' surface. Together with the increasing use of extra-vehicular activities, a system working on a broad variety of surfaces, e.g. the hull of a space station, is needed. Robotic devices need to locomote freely and safely on the outside of spacecraft. On top of that, complexity of the system must be kept at a minimum. Recent research on geckos and spiders, Evarcha arcuata, led to the description of an even more astonishing mechanism of so called dry attachment via van der Waals forces. Contrary to the gecko, the spiders control attachment passively via the kinematics of their legs. Their locomotive apparatus is highly versatile allowing for walking, jumping, and object handling. In the study presented here, the attachment systems of E. arcuata and geckos was analyzed and together with existing data on spider kinematics a legged walker suitable for space applications was conceptualized, for example working on the outer surface of a space station.


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    Title :

    Spider attachment for space applications


    Additional title:

    Haftungsmechanismus von Spinnen für Anwendungen für Raumstationen


    Contributors:


    Publication date :

    2008


    Size :

    10 Seiten, 4 Bilder, 5 Quellen


    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English




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