Reaction wheel

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Translations

roue de réaction

Mentioned in ?

Barker's mill

References in periodicals archive ?

Zhao, "Disturbance modeling and parameters identification of reaction wheel assembly on spacecraft," Journal of Beijing University of Aeronautics and Astronautics, vol.

Research on Microvibrations Generated by a Control Moment Gyroscope on a Flexible Interface Based on a Dynamic Substructure Method

The failure of one or more reaction wheels can cause a satellite to lose its ability to maintain position and thus potentially cause a mission failure.

Smart sensors monitor aerospace bearings: Jon Everett of the Barden corporation explains how smart sensor technology is helping to estimate remaining useful aerospace bearing life

Cage Instability of XMM-Newton's Reaction Wheels Discovered During the Development of an Early Degradation Warning System.

Enhanced telemetry monitoring with novelty detection

[J.sub.[omega]] is the inertia matrix of the reaction wheel and [??] = [J.sub.s] - [A.sub.i][J.sub.[omega]]][A.sup.T.sub.i] x [A.sub.i] is the layout matrix of the reaction wheels whose columns represent the influence of each wheel on the angular acceleration of the satellite.

Design of attitude control systems for CubeSat-class nanosatellite

In June 2010, on approach to Vesta, Dawn lost one of its four reaction wheels. These devices permit the spacecraft to maintain its orientation in space, to keep its solar panels facing the Sun, its dish antenna pointed at Earth, and its instruments aimed at science targets.

Dawn arrives at Ceres: NASA's spacecraft enters into orbit around the largest asteroid in the main belt

Millennium Space Systems said it has shipped its first set of RWA-1000 reaction wheels to commercial customer SSL in Palo Alto, CA.

Millennium Space Systems Ships flight reaction wheels to SSL

A reaction wheel, an actuator in a satellite's attitude control system, changes the satellite's position based on torque commands issued by the satellite's exterior sensors.

NASA optimizes wheel with vibration software

The quality of high-resolution images obtained from earth observation satellites can be degraded by undesirable microdisturbances induced by on-board appendages that have mechanical moving parts, such as reaction wheel assembly (RWA) [1], control moment gyro [2], cryogenic cooler [3], and gimbal-type antenna [4].

Experimental Validation of Fly-Wheel Passive Launch and On-Orbit Vibration Isolation System by Using a Superelastic SMA Mesh Washer Isolator

If Kepler points the peak of its solar panel roof at the sun, each side gets the same gentle nudge from sunlight and the forces cancel; the light acts like a third reaction wheel to steady the spacecraft.

Sun shines new life on Kepler space telescope: by balancing on sunlight, planet hunter reinvigorated

The other scheme, and this has never been tried, involves using thrusters and the solar pressure exerted on the solar panels to try and act as a third reaction wheel and provide additional pointing stability, he added.