Dynamometer - MapleSim Help

Online Help

All Products    Maple    MapleSim


Home : Support : Online Help : MapleSim Toolboxes : MapleSim Driveline Component Library : Engines and Dynamometers : DrivelineComponentLibrary/dynamometer

Dynamometer

Dynamometer component

 

 

           

 

The Dynamometer component models a simple dynamometer providing a resistive load at the end of a power train. The dynamometer has rotary inertia and linear and quadratic damping. An optional real signal input is also provided for cases where a known load (torque) is applied to the input shaft.

 

Equations

 

 

τa =  J  · αa+ dlin· ωa + dquad · ωaωa  + L

 

Where

αa  = ⅆ2ⅆ t2 ϕa   and   ωa = ⅆⅆ t ϕa

 

   

Connections 

Name

Condition

Description

ID

flangea

-

Flange to drive shaft

flange_a

speed

-

Real output port for angular velocity

speed

L load

use external torque=true

Conditional real input port for the externally applied torque signal

loss

 

 

Parameters

Symbol

Condition

Default

Units

Description

ID

use external torque

-

false

-

Enables/Disables external load:

true - external load (torque) port is enabled

false - external load (torque) port is disabled

useExternalLoad

speed output unit

RPM

Defines the unit of the speed output. Three options are available:

• 

rad/s

• 

RPM

• 

user defined

outputunitmode

kω

speed output =user defined

1

Uuserrads

Defines the unit conversion factor from user defined unit [Uuser] to rad/s.

userspeedscale

J

1

kg·m2

Rotary inertia of the Dynamometer

J

dlin

0

N·mrads

Linear damping

d1

dquad

0

N·mrads2

Quadratic damping

d2

 

 

Initial Conditions

Symbol

Condition

Default

Units

Description

ID

ω0

-

0

rads

Initial angular velocity of the Dynamometer

w

 

See Also

MapleSim Driveline Library Overview

MapleSim Library Overview

1-D Mechanical Overview

Engines and Dynamometers

 

 

 


Download Help Document

Was this information helpful?



Please add your Comment (Optional)
E-mail Address (Optional)
What is ? This question helps us to combat spam