Results 51 to 60 of about 10,240 (167)
A 3D printed wheel with constant mass and variable moment of inertia for lab and demonstration
, 2017 We present a versatile experimental apparatus for exploring rotational motion through the interplay between the moment of inertia, torque and rotational kinetic energy.
Aragoneses, Andrés, Hazlett, Eric
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Conceptual design and analysis of roads and road construction machinery for initial lunar base operations [PDF]
Recent developments have made it possible for scientists and engineers to consider returning to the Moon to build a manned lunar base. The base can be used to conduct scientific research, develop new space technology, and utilize the natural resources of
Banks, Joel +2 more
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Formulation of design guidelines for automated robotic assembly in outerspace [PDF]
The approach for arriving at design guidelines for assembly by robots in outerspace is illustrated. The use of robots in a zero gravity environment necessitates that extra factors over and above normal design guidelines be taken into account.
Banerjee, S. +3 more
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Optimization design and analysis of mobile pump truck frame using response surface methodology. [PDF]
PLoS One, 2023 Cheng L, Lin HB, Zhang YL.
europepmc +1 more source
Headset with variable acoustic impedance [PDF]
, 2015 A headset apparatus including a speaker housing having an acoustic impedance and configured for conversion between a first listening mode and a second listening mode by rotation of the at least one speaker housing about an axle.
Blonder, Greg
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Study of CNC skew rolling of hollow rail axles with a mandrel
Archives of Civil and Mechanical EngineeringAbstractThe manuscript presents a new manufacturing technology for the production of hollow railway axle forgings. The manufacturing technology analyzed is based on three-roll skew rolling (TRSR) using a computer numerically controlled (CNC) rolling mill.
Tomasz Bulzak +3 more
openaire +1 more source
Overcenter collet space station truss fastener [PDF]
, 1991 A quick-connect fastener is arranged with a tubular body that is arranged to be engaged against the exterior surface of a hollow attachment fitting and coincidentally aligned with an opening in the fitting.
Sheridan, Philip L.
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Latching mechanism for deployable/re-stowable columns useful in satellite construction [PDF]
, 1986 A column longeron latch assembly provides the securing mechanism for the deployable, telescoping column of a hoop/column antenna. The column is an open lattice structure with three longerons disposed 120 deg apart as the principle load bearing member ...
Ahl, E. L., Jr.
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Compton scatter attenuation gamma ray spectrometer [PDF]
, 1972 A gamma ray spectrometer is described for use in intense radiation fields such as those in the vicinity of a rocket engine exhaust. A collimated radiation beam is Compton scattered toward shielded spectrometers to reduce the energy and intensity of the ...
Austin, W. E.
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