![]() ![]() Stated another way, an applied force to the axis of the spinning gyro does not cause the axis to tilt. Instead of responding to the force by moving about the horizontal axis, the gyro moves in response about its vertical axis. By applying a force to the horizontal axis of the gyro, a unique phenomenon occurs. Precession is a second important characteristic of gyroscopes. This characteristic of gyros to remain rigid in space is exploited in the attitude-indicating instruments and the directional indicators that use gyros. Minimum bearing friction keeps deflecting forces at a minimum. Bearing friction-any friction applies a deflecting force to a gyro.Radius at which the weight is concentrated- maximum effect is obtained from a mass when its principal weight is concentrated near the rim, rotating at high speed.Angular velocity-the higher the rotational speed, the greater the rigidity or resistance is to deflection.Weight-for a given size, a heavy mass is more resistant to disturbing forces than a light mass.Gyroscopic rigidity depends upon several design factors: The plane that the rotor spins in due to its rotation about its axle is not counted as a plane of rotation. Both of these are perpendicular to the spin axis of the rotor. Attachment of a bracket to this outer ring allows the rotor to rotate in two planes while spinning. The bearing points are the same as the bracket just described, 90° around the supporting ring from where the spin axle attached. The supporting ring can also be mounted inside an outer ring. ![]() It can rotate about only one axis that is perpendicular to the axis of spin. ![]() When in this configuration, the gyro is said to be a captive gyro. If brackets are attached 90° around the supporting ring from where the spin axle attached, the supporting ring and rotor can both move freely 360°. To suspend the rotor for rotation, the axle is first mounted in a supporting ring. Different mounting configurations are available for the rotor and axle, which allow the rotor assembly to rotate about one or two axes perpendicular to its axis of spin. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |