WOLFRAM SYSTEM MODELER

Clutches

Model with inertias separated by coupled clutches.

Diagram

Wolfram Language

In[1]:=
SystemModel["IndustryExamples.AutomotiveTransportation.CoupledClutches.Components.Clutches"]
Out[1]:=

Information

The model consists of a series of coupled inertia components separated by clutches between them. When a clutch is engaged, friction will be present between two adjacent inertia components, causing them to transfer momentum to each other. The first and the last inertia components are damped by rotational dampers, and a constant torque is applied to the first inertia.

From left to right, the first two clutches are timed so that they disengage after 15 seconds and engage after 5 seconds, respectively. The third clutch can be controlled by user input. On the top level, that user input is also connected to a timer, engaging the clutch after 10 seconds.

Parameters (4)

T1

Value: Modelica.Constants.inf

Type: Time (s)

Description: Time when clutch1 is disengaged

T2

Value: 0

Type: Time (s)

Description: Time when clutch2 is invoked

d

Value: 1

Type: RotationalDampingConstant (N⋅m⋅s/rad)

Description: Damping constant

tau

Value: 5

Type: Torque (N⋅m)

Description: Input torque

Connectors (1)

u

Type: RealInput

Description: 'input Real' as connector

Components (14)

J1

Type: Inertia

Description: 1D-rotational component with inertia

torque

Type: Torque

Description: Input signal acting as external torque on a flange

clutch1

Type: Clutch

Description: Clutch based on Coulomb friction

clutch2Step

Type: Step

Description: Generate step signal of type Real

J2

Type: Inertia

Description: 1D-rotational component with inertia

clutch2

Type: Clutch

Description: Clutch based on Coulomb friction

J3

Type: Inertia

Description: 1D-rotational component with inertia

clutch3

Type: Clutch

Description: Clutch based on Coulomb friction

J4

Type: Inertia

Description: 1D-rotational component with inertia

fixed

Type: Fixed

Description: Flange fixed in housing at a given angle

d1

Type: Damper

Description: Linear 1D rotational damper

clutch1Step

Type: Step

Description: Generate step signal of type Real

d2

Type: Damper

Description: Linear 1D rotational damper

const

Type: Constant

Description: Generate constant signal of type Real

Used in Examples (1)

CoupledClutchesModel

IndustryExamples.AutomotiveTransportation.CoupledClutches

Example studing the effect of four inertias separated by clutches.