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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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Combination indexer and drive unit drills equally spaced circular hole patterns on rotary tables. It automatically rotates the table a distance exactly equal to one hole spacing for each revolution of a special idler gear.
Two magnetically geared microscope stages for nuclear track plates
Mathematical prediction model for landing dynamics of impacting struts, and trusses of lunar vehicle landing gear
Vertical impacts of LM-type landing gear system under simulated lunar landings
Worm gear lubrication with bonded solid film lubricants, discussing efficiency and wear life test apparatus
Soft landing spacecraft landing gear design for legged assemblies, discussing load, clearance and stability requirements
Solid film lubrication of instrument spur gears
Full scale dynamic landing impact investigation of prototype lunar module landing gear
Vacuum and atmospheric tests of selected gear materials for wear resistance
Nose gear steering system for vehicles with main skids to provide directional stability after loss of aerodynamic control
Vertically descending flight vehicle landing gear for rough terrain
Gear materials evaluation program for space environment application with unlubricated or solid film lubricated operation mode
Gear materials evaluation program for space environment application with unlubricated or solid film lubricated operation mode
Lubrication considerations in design of gears
Design, fabrication, and test of research model roller-gear drive consisting of transmission driven by dc motor
Self lubricating gears and other mechanical parts having surface adapted to frictional contact
Lubrication considerations concerning mechanical and service variables for obtaining optimum gear performance under severe operating conditions
The development and evaluation of a main landing gear door for space shuttle applications are discussed. The door is constructed on composite materials using a rib-stiffened titanium panel selectively reinforced with boron/epoxy composite. A weight comparison between the hybrid design and the all-titanium baseline design showed a weight saving of approximately fifteen percent. Detailed descriptions of the door structure and method of manufacture are presented.