Asked in PhysicsMechanical EngineeringFluid Dynamics
How is rotary motion transferred into linear motion?
December 04, 2010 10:40AM
"Think of a simple single cylinder engine....crankshaft goes round & round,piston goes up & down,connecting rod keeps the two tied together...wa la!"
This type of linear motion is known as reciprocating motion, where the linear motion is a repetitive up and down, or back and forth action.
The linear motion velocity of a wheel and crank system is not uniform and conforms to a sinusodial curve, i.e. it is slowest at the 0º and 180º positions and fastest at the 90º position.
To get uniform linear motion from uniform rotary motion, you can use a threaded shaft and thread follower arrangement, or a rack and pinion.
btw, it's "voila!".