Sine-Squared Cam-Law, Motion-Law

Sine-Squared Motion-Law is a Traditional Motion-Law

Use the Blend-Point Editor to edit its:

Start Position
End Position

To edit the Position at the end of this Segment you must select the Next-Segment.


The Start and End Velocity and Accelerations are zero.
The Start, End and Cross-over Jerk values are zero.
The Segment is symmetrical about the mid-point.

Motion-Law Coefficients

Cv = 2.000

Ca = ±8.000

Cj = ±52.265

See also: Motion-Law: Sine-Constant-Cosine for Modified Sine with Constant-Velocity options.


Application Notes

This law produces finite jerk throughout the segment. It also produces a relatively low nominal peak velocity, but a relatively high peak nominal acceleration. This Motion-Law also has a relatively low jerk value at the cross-over point (the mid-point).

Dynamic Performance :

This Motion-Law is recommended in applications where the period ratio is between 5 and 10, particularly where the input drive is flexible with backlash. Residual Vibration is less than many other laws.


Pressure Angle Considerations

This one of the Traditional Motion-Laws that produce a relatively small pressure angle - and so might allow a smaller cam for a given lift and pre-prescribed maximum pressure angle.


Drive Torques

Both the nominal drive torque characteristics and the actual drive torques for low period ratio values are very good for this law. The low peak values and smooth variation of the drive torque during the motion segment further emphasise the suitability of this Motion-Law in applications where the input drive is flexible or exhibits backlash.


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