1. Evaluating Harmonic Motion for a Packaging Machine Cam
Mechanical Design EngineerBackground
Designing a high-speed packaging machine where a cam must lift a follower by 20 mm over a 120-degree rotation. The base circle radius is 40 mm.
Problem
Need to find the displacement and pressure angle at a cam angle of 60 degrees using Simple Harmonic Motion (SHM).
How to use
Set the Motion Law to 'Harmonic (SHM)', enter 20 for Rise, 120 for Rise Angle, 60 for Cam Angle, and 40 for Base Circle Radius.
{
"motionLaw": "harmonic",
"rise": 20,
"riseAngle": 120,
"camAngle": 60,
"baseRadius": 40
}Outcome
The calculator outputs a displacement of 10 mm, a velocity coefficient of 31.4159 mm/rad, and a pressure angle of 16.6992°.