WOLFRAM SYSTEMMODELER

FirstGrounded

First example: simple drive train with grounded elements

Diagram

Wolfram Language

In[1]:=
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SystemModel["Modelica.Mechanics.Rotational.Examples.FirstGrounded"]
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Information

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

The drive train consists of a motor inertia which is driven by a sine-wave motor torque. Via a gearbox the rotational energy is transmitted to a load inertia. Elasticity in the gearbox is modeled by a spring element. A linear damper is used to model the damping in the gearbox bearing.

Note, that a force component (like the damper of this example) which is acting between a shaft and the housing has to be fixed in the housing on one side via component Fixed.

Simulate for 1 second and plot the following variables:
angular velocities of inertias inertia2 and 3: inertia2.w, inertia3.w

Parameters (6)

amplitude

Value: 10

Type: Torque (N·m)

Description: Amplitude of driving torque

freqHz

Value: 5

Type: Frequency (Hz)

Description: Frequency of driving torque

Jmotor

Value: 0.1

Type: Inertia (kg·m²)

Description: Motor inertia

Jload

Value: 2

Type: Inertia (kg·m²)

Description: Load inertia

ratio

Value: 10

Type: Real

Description: Gear ratio

damping

Value: 10

Type: Real

Description: Damping in bearing of gear

Components (9)

fixed

Type: Fixed

Description:

torque

Type: Torque

Description:

inertia1

Type: Inertia

Description:

idealGear

Type: IdealGear

Description:

inertia2

Type: Inertia

Description:

spring

Type: Spring

Description:

inertia3

Type: Inertia

Description:

damper

Type: Damper

Description:

sine

Type: Sine

Description: