单词 momentum wheel 释义 BETA

Examples ofmomentum wheel

Dictionary> Examples ofmomentum wheelmomentum wheelisn’t in the Cambridge Dictionary yet. You can help!Add a definitionThe spacecraft was 3-axis stabilized with amomentumwheelthat was used to establish stability about the nominal rotation, or z-axis.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.Actuators were three momentum wheels, and hot gas (hydrazine mono-propellant) thrusters.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.This marks the technological improvement from spin-stabilisation, used in earlier cylindrical satellites, to three-axis stabilisation using momentum wheels and reaction wheels controlling the satellite gyroscopically.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.Momentum wheels are generally suspended on magnetic bearings to avoid bearing friction and breakdown problems.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.Most satellites have simple reliable chemical thrusters (often monopropellant rockets) or resistojet rockets for orbital station-keeping and some use momentum wheels for attitude control.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.Since momentum wheels make up a small fraction of the spacecraft's mass and are computer controlled, they give precise control.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.Rockets rely on momentum, airfoils, auxiliary reaction engines, gimballed thrust, momentum wheels, deflection of the exhaust stream, propellant flow, spin, and/or gravity to help control flight.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.

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