camrod

Navigation:  Library > Iconic Diagrams > Mechanical > Rotation > Gears >

camrod

Previous pageReturn to chapter overviewNext page

Library

Iconic Diagrams\Mechanical\Rotation\Gears

Iconic Diagrams\Mechanical\Translation\Transmission

Use

Domains: Continuous. Size: 1-D. Kind: Iconic Diagrams (Translation).

Description

This models represents a cam and rod mechanism. If the input shaft is rotating with a constant speed, the output motion is a pure sinusoidal.

Sine

The mechanism is ideal, i.e., it does not have inertia, friction or geometrical limitations. It has one rotation port (p_in) and one translation port (p_out). The causality of this model is always mixed: one port has a force out causality while the other has a velocity out causality:

 

p_in.T = i * p_out.F

p_out.v = i * p_in.omega

 

The transmission ratio (i) is the ratio of the velocities of both ports (in fact a sinusoidal function of the shaft angle).

Interface

Ports

Description

p_in

p_out

Driving axis (Rotation)

Output port with resulting motion (Translation)

Causality

 

fixed torque out p_in

fixed velocity out p_out

 

Parameters

 

stroke

Stroke of the translation port (is equal to half the length of the rod).