Slider Crank

The Slider Crank mechanism considers the dynamically changing inertia, thrust and gravity effects for the Crank, Connecting Rod and Load Mass for any given motion profile. The motion profile can be specified at the Load (linear), or at the Crank (rotary).

The 'Slider Crank' feature is available with the PRO version

Notes:

  1. The Load position is relative to the Crank Pin. Ie. The Crank Pin is at Position = 0.
  2. Incline angle and gravity:
    1. If the incline angle > 0, then the Load is above the crank pin. In this instance, when the Load is moving in a positive direction, it is moving up against gravity.
    2. If the incline angle < 0, then the Load is below the crank pin. In this instance, when the Load is moving in a positive direction, it is moving down with gravity.
  3. The motion profile can be defined at the Crank (rotary), or at the Load (linear).

When the motion profile is defined at the Load (linear), the user must be aware of the fully retracted and extended positions. At these points, the effective gearing is infinite. Sequences specified exactly at or outside these limits results in very large torque values.

 

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