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en:wheel_subsys

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en:wheel_subsys [2018/01/23 15:47]
ashley
en:wheel_subsys [2019/09/16 15:40]
golikov
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 Virtual [[power_subsys|consumption]] - 2000mA Virtual [[power_subsys|consumption]] - 2000mA
  
-{{ ru:wheel.jpg?​direct&​200|}}+{{ :ru:маховик.png?​direct&​200| ​Двигатель-маховик}} 
 When in orbit, many satellites require precise orientation of certain surfaces in the correct direction - relative to the Earth, the Sun, stars or some other reference point. For example, the [[camera_subsys|camera]] should be oriented towards the [[sim_earth|ground]] and the [[sun_battery|solar panels]] should be oriented towards the Sun. There are several known approaches for solving this problem. For example, you can use jet (rocket) orientation engines, which causes the spacecraft to rotate in the desired direction relative to the center of mass. However, this method requires the consumption of a working fluid (fuel), requires a complex system of engine nozzles, is potentially unsafe, etc. On small spacecraft, ​ [[wheel_subsys|flywheels]] are most often used to provide a given orientation of the satellite in space relative to the center of mass.  When in orbit, many satellites require precise orientation of certain surfaces in the correct direction - relative to the Earth, the Sun, stars or some other reference point. For example, the [[camera_subsys|camera]] should be oriented towards the [[sim_earth|ground]] and the [[sun_battery|solar panels]] should be oriented towards the Sun. There are several known approaches for solving this problem. For example, you can use jet (rocket) orientation engines, which causes the spacecraft to rotate in the desired direction relative to the center of mass. However, this method requires the consumption of a working fluid (fuel), requires a complex system of engine nozzles, is potentially unsafe, etc. On small spacecraft, ​ [[wheel_subsys|flywheels]] are most often used to provide a given orientation of the satellite in space relative to the center of mass. 
  
-The flywheel is an electromechanical device that consists of an electric motor with a wheel mounted on its axis of rotation. As the engine accelerates or decelerates,​ the spacecraft itself rotates faster or slower according to the law of conservation of the kinetic moment. Since there are no external forces in outer space and the amount ​{{ ru::​arch.php.gif?​200|}}of motion cannot change, turning the flywheel clockwise causes the whole spacecraft to rotate counterclockwise. Thus, by controlling the engine and the rotation of the [[wheel_subsys|flywheel]],​ you can control the motion of the whole spacecraft (in fact, the rotation) around its center of mass.+The flywheel is an electromechanical device that consists of an electric motor with a wheel mounted on its axis of rotation. As the engine accelerates or decelerates,​ the spacecraft itself rotates faster or slower according to the law of conservation of the kinetic moment. Since there are no external forces in outer space and the amount of motion cannot change, turning the flywheel clockwise causes the whole spacecraft to rotate counterclockwise. Thus, by controlling the engine and the rotation of the [[wheel_subsys|flywheel]],​ you can control the motion of the whole spacecraft (in fact, the rotation) around its center of mass.
  
 In our model, free rotation of the spacecraft, and hence the [[wheel_subsys|flywheel]],​ is possible only around one axis - vertical. Therefore, only one orientation flywheel is installed on the "​satellite."​ In our model, free rotation of the spacecraft, and hence the [[wheel_subsys|flywheel]],​ is possible only around one axis - vertical. Therefore, only one orientation flywheel is installed on the "​satellite."​
en/wheel_subsys.txt · Last modified: 2019/09/16 15:40 by golikov