Results 61 to 70 of about 4,234 (146)
Gyrodampers for large space structures [PDF]
The problem of controlling the vibrations of a large space structures by the use of actively augmented damping devices distributed throughout the structure is addressed.
Aubrun, J. N., Margulies, G.
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Magnetic attachment mechanism [PDF]
, 1990 A magnetic attachment mechanism adapted for interfacing with the manipulator arm (11) of a remote manipulator system and comprising a pair of permanent magnets (31,32) of rare earth material which are arranged in a stator-rotor relationship.
Harwell, William D., Wu, Mitchell B.
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Communications techniques and equipment: A compilation [PDF]
This Compilation is devoted to equipment and techniques in the field of communications. It contains three sections. One section is on telemetry, including articles on radar and antennas.
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Index to nasa tech briefs, issue number 2 [PDF]
, 1965 Annotated bibliography on technological innovations in NASA space ...
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Publications in acoustics and noise control from the NASA Langley Research Center during 1940 - 1974 [PDF]
This document contains reference lists of published Langley Research Center papers in various areas of acoustics and noise control for the period 1940-1974.
Laneave, J. N., Smith, G. C.
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Influence of Lift Offset on Rotorcraft Performance [PDF]
The influence of lift offset on the performance of several rotorcraft configurations is explored. A lift-offset rotor, or advancing blade concept, is a hingeless rotor that can attain good efficiency at high speed, by operating with more lift on the ...
Johnson, Wayne
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Performance of Advanced Heavy-Lift, High-Speed Rotorcraft Configurations [PDF]
, 2007 The aerodynamic performance of rotorcraft designed for heavy-lift and high-speed cruise is examined. Configurations considered include the tiltrotor, the compound helicopter, and the lift-offset rotor. Design conditions are hover and 250-350 knot cruise,
Acree, C. W., Jr. +2 more
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Block 3 X-band receiver-exciter [PDF]
The development of an X-band exciter, for use in the X-Band Uplink Subsystem, was completed. The exciter generates the drive signal for the X-band transmitter and also generates coherent test signals for the S- and X-band Block 3 translator and a Doppler
Johns, C. E.
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Integrated gas turbine engine-nacelle [PDF]
, 1977 A nacelle for use with a gas turbine engine is presented. An integral webbed structure resembling a spoked wheel for rigidly interconnecting the nacelle and engine, provides lightweight support.
Adamson, A. P. +2 more
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Turbine instabilities: Case histories [PDF]
Several possible causes of turbine rotor instability are discussed and the related design features of a wide range of turbomachinery types and sizes are considered.
Laws, C. W.
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