1–16 von 16 Ergebnissen
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    The evolution of space mechanisms in the ESA R and D program

    Wyn-Roberts, D. | NTRS | 1989
    the European Space Agency are discussed. Among the subjects considered are Scientific Satellites, Columbus space station development ...
    Verlag: NASA National Aeronautics and Space Administration

    Age distribution among NASA scientists and engineers

    Ciancone, Michael L. | NTRS | 1989
    The loss of technical expertise through attrition in NASA and the aerospace industry is discussed. This report documents historical age ...
    Verlag: NASA National Aeronautics and Space Administration

    Flight telerobot mechanism design: Problems and challenges

    Dahlgren, John B. / Kan, Edwin P. | NTRS | 1989
    Problems and challenges of designing flight telerobot mechanisms are discussed. Specific experiences are drawn from the following system ...
    Verlag: NASA National Aeronautics and Space Administration

    Design and verification of mechanisms for a large foldable antenna

    Luhmann, Hans Jurgen / Etzler, Carl Christian / Wagner, Rudolf | NTRS | 1989
    , and the resulting features of the mechanisms are discussed. ...
    Verlag: NASA National Aeronautics and Space Administration

    Design and testing of a deployable, retrievable boom for space applications

    Becchi, P. / Dellamico, S. | NTRS | 1989
    The Deployable Retrievable Boom which was developed as a part of the joint U.S.-Italian Tethered Satellite System (TSS) is described. The ...
    Verlag: NASA National Aeronautics and Space Administration

    The design and analysis of a double swivel toggle release mechanism for the Orbiter stabilized payload deployment system

    King, Guy L. / Tsai, Ted | NTRS | 1989
    The NASA Stabilized Payload Deployment System (SPDS) is discussed. The lightweight and heavy-duty system rolls payloads over the orbiter's ...
    Verlag: NASA National Aeronautics and Space Administration

    The in-vacuo torque performance of dry-lubricated ball bearings at cryogenic temperatures

    Gould, S. G. / Roberts, E. W. | NTRS | 1989
    The performance of dry-lubricated, angular contact ball bearings in vacuum at a temperature of 20 degrees K has been investigated, and is ...
    Verlag: NASA National Aeronautics and Space Administration

    A unidirectional rotary solenoid as applied to stronglinks

    Kenderdine, Eugene W. | NTRS | 1989
    The design goals and results of an advanced development stronglink are discussed. Special emphasis is placed on a new rotary solenoid ...
    Verlag: NASA National Aeronautics and Space Administration

    Traction-drive force transmission for telerobotic joints

    Williams, D. M. / Kuban, D. P. | NTRS | 1989
    traction-drive differential that uses variable preload mechanisms. The differential provides compact design, with dextrous motion range and torque ...
    Verlag: NASA National Aeronautics and Space Administration

    Design and development of a high-stiffness, high-resolution torque sensor

    Socha, Michael M. / Lurie, Boris J. | NTRS | 1989
    A sensor has been designed and tested for precise pointing applications. The device is able to sense extremely small rotary motion and is ...
    Verlag: NASA National Aeronautics and Space Administration

    Carousel deployment mechanism for coilable lattice truss

    Warden, Robert M. / Jones, P. Alan | NTRS | 1989
    The development of a mechanism for instrumentation and solar-array deployment is discussed. One part of the technology consists of a smart ...
    Verlag: NASA National Aeronautics and Space Administration

    A family of BAPTAs for GEO and LEO applications

    Auer, W. | NTRS | 1989
    The application of a Bearing and Power Transfer Assembly (BAPTA) to a Solar Array Drive for communications satellites is presented. The ...
    Verlag: NASA National Aeronautics and Space Administration

    Pyro thruster for performing rocket booster attachment, disconnect, and jettison functions

    Hornyak, Stephen | NTRS | 1989
    The concept of a pyro thruster, combining an automatic structural attachment with quick disconnect and thrusting capability, is described ...
    Verlag: NASA National Aeronautics and Space Administration

    Practical experiences with worm gearing for spacecraft power transmission applications

    Purdy, William / Mccown, William | NTRS | 1989
    Verlag: NASA National Aeronautics and Space Administration

    Development of a precision, wide-dynamic-range actuator for use in active optical systems

    Lorell, K. R. / Aubrun, J-N. / Zacharie, D. F. et al. | NTRS | 1989
    The design, operation, and performance of a wide-dynamic-range optical-quality actuator are discussed. The actuator uses a closed-loop ...
    Verlag: NASA National Aeronautics and Space Administration

    A two-axis laser boresight system for a shuttle experiment

    Delorme, Joseph F. | NTRS | 1989
    A two-axis gimballed laser pointing mechanism is being developed for the Lidar In-space Technology Experiment (LITE) to be flown on the ...
    Verlag: NASA National Aeronautics and Space Administration