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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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At least 919 records · Page 51
All sourcesNASA NTRSDOE OSTI
NASA NTRS1997

Design of the Cassini Gimbal Actuator: Some Lessons Learned Along the Way

The evolution of a linear servoactuator design is presented. The linear actuator was needed to position Cassini's redundant rocket motors. A device design inherited from JPL's Mariner and Viking Mars missions served as a starting point. The various improvements made and the efforts involved in developing new component sources are discussed. Because the brush type DC motor from the old design was retained, special attention was placed on the reliability testing of the motor and mechanism at all stages of procurement and assembly.

actuators DC motors reliability lifetime↗
NASA NTRS1994

Lessons Learned in Building a Telerobotic System

The Supervisory Telerobotics Laboratory (STELER) at the Jet Propulsion Laboratory (JPL) developed a unique local and remote telerobotic system that has been described in earlier articles.

telerobotics MOTES↗
NASA NTRS1994

Lessons Learned During the Integration Phase of the NASA IN-STEP Cryo System Experiment

The Cryo System Experiment (CSE), a NASA In-Space Technology Experiments Proram (IN-STEP) Class D Flight Experiment, was developed by Hughes Aircraft Company (Hughes) to validate in zero-g space a 65 K cryogenic system for focal planes, optics, instruments, or other equipment (gramma-ray spectrometers and infrared and submillimeter imaging instruments) that require continuous cryogenic cooling.

cryogenic launch-vibration restraints thermal stra↗
NASA NTRS2004

Flight software issues in onboard automated planning: lessons learned on EO-1

This paper focuses on the onboard planner and scheduler CASPER, whose core planning engine is based on the ground system ASPEN. Given the challenges of developing flight software, we discuss several of the issues encountered in preparing the planner for flight, including reducing the code image size, determining what data to place within the engineering telemetry packet, and performing long term planning.

planning↗