Quadratic Speed Dependent Torque - MapleSim Help

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Quadratic Speed Dependent Torque

Quadratic dependency of torque versus speed

 

Description

Equations

Variables

Connections

Parameters

Modelica Standard Library

Description

The Quadratic Speed Dependent Torque component models a torque that is quadratically dependent on the angular velocity of the flange. The Torque Direction parameter determines the sign of the torque when the velocity is reversed.

The Use Support Flange boolean parameter enables a support flange on the housing. When true (checked) the support flange must be connected in the drawing. When false the component is internally fixed to ground.

Equations

τ=τflange=τnomωnom2{1Torque Direction=truesignωotherwise

ω=φ.

if Use Support Flange then τsupport=τ

φ=φflange{φsupportUse Support0otherwise

Variables

Name

Units

Description

Modelica ID

ω

rads

Angular velocity of flange with respect to support

w

φ

rad

Angle of flange with respect to support

phi

φflange

rad

Angle of flange

flange.phi

φsupport

rad

Angle of support

support.phi

τ

Nm

Accelerating torque acting at flange

tau

τflange

Nm

Torque at flange

flange.tau

τsupport

Nm

Torque at support

support.tau

Connections

Name

Description

Modelica ID

flange

Flange of shaft

flange

support

Conditional Support Flange

support

Parameters

Name

Default

Units

Description

Modelica ID

τnom

 

Nm

Nominal torque

tau_nominal

ωnom

 

rads

Nominal speed

w_nominal

Torque Direction

true

 

True (checked) means the sign of the torque is independent of direction of rotation

TorqueDirection

Use Support Flange

false

 

True (checked) enables the support flange

useSupport

Modelica Standard Library

The component described in this topic is from the Modelica Standard Library. To view the original documentation, which includes author and copyright information, click here.

See Also

1-D Mechanical Overview

Torque Drivers