The rotating joint: rotation mechanics

Particles in some point in to slip ring the right on the circumference of the radius of r sports, namely its trajectory is bound movement called "circle". It is one of the most common curve motion. For example motor rotor and wheels, pulley, etc are circular motion. In circular motion, the most common and most simple is uniform circular motion.

The characteristics of uniform circular motion: track is round, angular velocity, cycle, the size of the linear velocity and acceleration to heart the size of the same. The line definition: the particle motion through the arc length S and the amount of time the ratio of the t. Linear velocity of the physical meaning: describe particles along the circumference of the movement and screw is vector. The definition of angular velocity: the radius in a certain time of the NaZhuan angle and the ratio of the time. The definition of cycle: more uniformly and in a circular motion of the object, turned the week of the amount of time. Circular motion Any objects in a circle for the need when a centripetal force, as it continues to revolving joint change speed. The speed of the same objects sizes, but the direction has been changed. Only the size of the right to maintain the centripetal force objects in double path movement. The acceleration (speed is a vector, change the direction at the same time cannot change the size) is provided by centrifugal force, if do not have the conditions, the objects will be from round orbit. Objects in circular motion the speed when the tangent direction in a circular path. The direction of the force has been pointing to the right. That is to change the direction of the speed. Now, the centripetal force any object not from orbit. A good example is gravity.

The ground gravity to satellite necessary force along the track in the game. Now backs to Rotary union the physics up. The object of the centripetal force and speed and its quality and square radius is proportional to the countdown: F = (mc ^ 2) / r, F = mw ^ 2 r (w is angular velocity) So if we know the force size, quality, radius, we can calculate object rotation speed. If we know the speed, quality, radius, we can calculate the output size. Symbols are recorded as the following: F = ma Yes, Force = Mass multiplied by acceleration. So: Yes, speed = quality times Acceleration A = (v ^ 2) / r Quality symbol-by removing F and may be replaced. You don't have to know that the mass of the object, isn't it?