WOLFRAM SYSTEMMODELER

PlanarFourbar

Planar four bars mechanism with one kinematic loop (with RevolutePlanarLoopConstraint joint)

Diagram

Wolfram Language

In[1]:=
SystemModel["Modelica.Mechanics.MultiBody.Examples.Loops.PlanarFourbar"]
Out[1]:=

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

A planar four link mechanism demonstrating possible usage of the RevolutePlanarLoopConstraint. In this planar example, all the revolute joints rotate about axes perpendicular to the x-y plane, i.e. they all are parallel to each other. To enable a unique numerical solution in such a case, one RevolutePlanarLoopConstraint has to be introduced instead of the common revolute joint.

Another option is to use the assembly joint Joints.Assemblies.JointRRR instead of a part of the mechanism, as demonstrated in the example PlanarLoops_analytic.

model Examples.Loops.PlanarFourbar

Components (11)

revolute1

Type: Revolute

revolute2

Type: Revolute

revolute3

Type: Revolute

revolute4cut

Type: RevolutePlanarLoopConstraint

body1

Type: BodyBox

body2

Type: BodyBox

body3

Type: BodyBox

body4

Type: BodyBox

world

Type: World

damper

Type: Damper

sensorJoint4

Type: RelativeSensor