Cycloidal-CV50 Cam-Law, Motion-Law

The motion-law is not in the Motion-Law Selector.

You must:

1.Use the Motion-Law Selector to select a Ramp Motion-Law
2.Edit the segment with the Segment-Editor
3.Enter 25% for the Start-Fraction and the End-Fraction in the Segment Parameters separator.

How to edit

Use the Blend-Point Editor to edit the:

Start Position
End Position

Click the Next-Segment to edit the Position at the end of this segment.


Cycloidal CV50: a Traditional Motion-Law.

The Cycloidal CV50 has three phases:

Phase 1: Acceleration Phase with a Ca of 8.378. It is one-half of the Sine function
Phase 2: Constant Velocity for 50% of the Segment-Width
Phase 3: Deceleration Phase, again with a Ca of -8.378, that is one-half of the Sine function

It s the same as the Cycloidal, but with a constant-velocity period that is 50% of the segment width.

It is a symmetrical motion-law.

CamLaw-Cycloidal-CV50

Cycloidal CV50%:

The Motion-Law is a Sine function when viewed in acceleration.

Symmetrical
Position, Velocity and Acceleration Continuity
Finite Jerk

Motion-Law Coefficients

Velocity Coefficient: Cv = 1.33
Acceleration Coefficient: Ca= 8.378
Jerk Coefficient: Cj= ±105.276
Jerk at Cross-over: Cj(co)= ±105.276 (Effectively)

Application Notes:

Dynamic Performance

This Motion-Law is recommended in applications where you need the peak velocity to be low when compared to others.

It has a large Peak Acceleration, with a short duration, thus more likely to induce vibrations.

 

Pressure Angle Considerations

It gives a relatively low pressure angle - because of its low peak velocity.

 

Drive Torques

This Motion-Law is not recommended in applications as it will give a sudden change in torque.

Help Files for MechDesigner and MotionDesigner 11.1 + © Machine, Mechanism, Motion and Cam Design Software by PSMotion Ltd