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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Air brake-dynamometer assembly combines the principles of the air turbine and the air pump to apply braking torque. The assembly absorbs and measures power outputs of rotating machinery over a wide range of shaft speeds. It can also be used as an air turbine.
Direct current torque amplifier for driving gyro-stabilized platform - amplifier design
Electrodynamic forces and torques on charged Echo II moving through rarefied ionized upper atmosphere and magnetic field of Earth
Feeder attachment, which fits on a standard power driver, drives a series of longitudinally attached torque bolts into place with great speed. It allows loading of a series of bolts and then positions individual bolts in the driving head for assembly. The attachment contains a socket gun which may be modified to accommodate different types and sizes of bolts.
Torque wrench with an adjustable drive shaft permits indicator to remain in view when used on sections of equipment with limited access. The shaft is capable of protruding from either side of the wrench head by means of spring loaded balls.
Rolling element bearing with stainless steel races and rolling elements and a porous bronze cage successfully operates in ultrahigh vacuum environments at a low torque and with small temperature rise. All components are burnished in molybdenum disulfide.
Torques, gravity-gradient force, and Coulomb drag due to electrodynamic interactions calculated for 750-foot extensible boom antenna for Radio Astronomy Explorer
Design of electromechanical satellite solar paddle orientation model including conservative torques and inertia of rotation axis
Gas bearing used as low-torque support system to study spacecraft attitude control systems in simulated space environment
Analytical investigation of reentry behavior of flying wind tunnel test vehicle with some effects of threshold and torque level of roll-rate control system
Earth oblateness effect on torque experienced in nonuniform geogravitational field by satellite with unequal principal moments of inertia
Combined effect of aerodynamic and gravity torques on stability of motion of passive satellites investigated by Liapunov direct method
Time dependent orientation of body fixed coordinate system relative to stars for spinning rigid torque-free body
Electrodynamic forces and torques on charged bodies moving through rarefied and partially ionized earth magnetosphere and upper atmosphere
Fast-response coil drive circuit, for electromagnetic torque motors, reduces the inductive coil time constant with a minimum of circuit sophistication. The low-cost modulator servoamplifier is used with a compatible preamplifier stage which provides the servo-loop function of summing, adjustable gain and compensation.
Design of torque motor controller, and operation of breadboard control circuit
Friction torque of ball bearings in vacuum to determine lubricating capability of polytetrafluoroethylene-composition retainer materials
Theoretical approach to determination of magnetic torques on orbiting spacecraft by near-field measurement