WOLFRAM SYSTEMMODELER

Engine1b

Model of one cylinder engine with gas force and preparation for assembly joint JointRRP

Diagram

Wolfram Language

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Click for copyable input
SystemModel["Modelica.Mechanics.MultiBody.Examples.Loops.Engine1b"]
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Information

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

This is a model of the mechanical part of one cylinder of an engine. It is similar to Loops.Engine1a. The difference is that a simple model for the gas force in the cylinder is added and that the model is restructured in such a way, that the central part of the planar kinematic loop can be easily replaced by the assembly joint "Modelica.Mechanics.MultiBody.Joints.Assemblies.JointRRP". This exchange of the kinematic loop is shown in Loops.Engine1b_analytic. The advantage of using JointRRP is, that the non-linear algebraic equation of this loop is solved analytically, and not numerically as in this model (Engine1b).

An animation of this example is shown in the figure below.

model Examples.Loops.Engine

Components (17)

Piston

Type: BodyCylinder

Description:

Rod2

Type: BodyBox

Description:

Bearing

Type: Revolute

Description:

world

Type: World

Description:

Inertia

Type: Inertia

Description:

Crank4

Type: BodyBox

Description:

Crank3

Type: BodyCylinder

Description:

Crank1

Type: BodyCylinder

Description:

Crank2

Type: BodyBox

Description:

Mid

Type: FixedTranslation

Description:

cylPosition

Type: FixedTranslation

Description:

gasForce

Type: GasForce2

Description:

B2

Type: RevolutePlanarLoopConstraint

Description:

B1

Type: Revolute

Description:

Cylinder

Type: Prismatic

Description:

Rod1

Type: FixedTranslation

Description:

Rod3

Type: FixedTranslation

Description: