Triple-Harmonic: 'Approximate Modified Trapezoidal'

To use this Motion-Law:

1.Select the Triple Harmonic in the Motion-Law Selector
2.Use the Segment Editor, to edit the Segment Parameters:
•First Harmonic = 6.04 (optionally 5.96)
•Second Harmonic = 0.0
•Third Harmonic = 0.7296 (optionally 0.9696)

MotionDesigner calculates the third harmonic, based on the fact that the segment always creates a D-R-D segment.

CamLaw-TripleHarmoinc-ModifedTrap

Summary

This law is continuous.

The output motion is near to the traditional Modified Trapezoidal Acceleration Cam Law. However, it can be described by one mathematical function.

The maximum velocity is the same as the traditional law, but the nominal acceleration is slighter greater.

Example Harmonic Settings that give an Acceleration similar to a Modified Trapezoid.

Example Harmonic Settings that give an Acceleration similar to a Modified Trapezoid.

Tutorials and Reference Help Files for MechDesigner and MotionDesigner 14.2 + © Machine, Cam, Mechanism, and Motion Design Software by PSMotion Ltd