Fluid drag on a sphere rolling in a tube.
Incompressible fluid drag force on sphere rolling at constant speed in closed-end tube
CIRCULAR TUBE↗
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Results for “Rolling”
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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Roll diffusion bonding of titanium alloy panels
Roll diffusion bonding technique is used for fabricating T-stiffened panel assemblies from titanium alloy. The single unit fabrication exhibits excellent strength characteristics under tensile and compressive loads. This program is applied to structures in which weight/strength ratio and integral construction are important considerations.
Bennett, J.↗
Feasibility study 30 watt per pound roll up solar array Quarterly technical report, 30 Sep. - 31 Dec. 1967
Thirty watt per pound roll-up solar array feasibility
Blake, F. A.↗
Inflight and ground simulation measurements of pilot transfer characteristics in the compensatory roll tracking task
Inflight and ground simulation measurements of pilot transfer characteristics in compensatory roll tracking task
Newell, F. D.↗
Lubrication of sliding and rolling element electrical contacts in vacuum
Lubrication of sliding and rolling element electric contacts in vacuum
Przybyszewski, J. S.↗
Fabrication feasibility study of a 30 watt/pound roll-up solar array Quarterly report, 1 Oct. - 31 Dec. 1967
Design criteria for five element folding arm used in roll-up solar arrays
King, H. G.↗
Residual stress and subsurface hardness changes induced during rolling contact
Subsurface residual stress on steel inner races from ball bearings during rolling contact
Parker, R. J.↗
Feasibility study of a 30 watts per pound roll up solar array Quarterly technical report, 1 Jan. - 31 Mar. 1968
Feasibility of 30 watts per pound roll-up solar array - design of engineering demonstration model with deployability of selected flight configuration and thermal cycling tests of array
Blake, F. A.↗
A review of lubrication of sliding and rolling element electrical contacts in vacuum
Summary data on deposition and endurance lives of thin metallic films used for lubricating sliding and rolling element electrical contacts in vacuum environments
Przybyszewski, J. S.↗
Instrumentation to Determine and Improve Scout Vehicle Vertical and Roll Alignment Final Report
Vehicle instrumention and ground support equipment development to improve vertical and roll alignment of Scout launch vehicle
Cejka, K.↗
Roll Resonance for a Gravity-gradient Satellite
Roll and attitude stability for gravity gradient satellites
Anand, D. K.↗
Feasibility study 30 watts per pound roll-up solar array Final report
Design, construction, and testing of preliminary 30 watts per pound roll-up solar array
Blake, F. A.↗
Human transfer characteristics in flight and ground simulation for the roll tracking task Final technical report
Mathematical models of human pilot performance in roll tracking task derived from flight simulator and T 33 aircraft situations
Newell, F. D.↗
Production of a large, rolled ring forging of ''200'' grade maraging steel Final technical report
Manufacturing process for seamless, thin walled maraging steel cylinder by roll forming
Lillie, T. J.↗
Lunar ''rolling stones.''
Lunar Orbiter 2 spacecraft high resolution photographs used to study rolling boulders on moon, noting tracks on crater walls
Arant, W. H.↗
Two-position roll modulation of lift for aerodynamic braking of a Mars entry vehicle.
Two position roll modulation of lift for aerodynamic braking for soft landing on Mars, solving boundary value problem by quasi- linearization
Niemann, R. A.↗
Roll resonance for a gravity-gradient satellite.
Equation providing nodal angle for largest roll libration with twice orbital frequency derived for gravity gradient satellite
Anand, D. K.↗
Lubrication of sliding and rolling element electrical contacts in vacuum.
Lubricating sliding and rolling element electrical contacts in vacuum
Przybyszewski, J.↗