Ball Screw - Driving Torque
A ball screw is a mechanical linear actuator that translates rotational motion to linear motion with little friction. A threaded shaft provides a helical
Energy transmission with a rotating shaft is very common in engineering practice. Often the torque T applied to the shaft is constant which means that the
Rotating unbalance is the uneven distribution of mass around an axis of rotation. A rotating mass, or rotor, is said to be out of balance when its center
True anomaly - elliptic orbits
In celestial mechanics, true anomaly is an angular parameter that defines the position of a body moving along a Keplerian orbit. It is the angle between
The Archimedean spiral is the locus of points corresponding to the locations over time of a point moving away from a fixed point with a constant speed
In astrodynamics an orbit equation defines the path of orbiting body around central body relative to , without specifying position as a function of time.