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Rotational Inertia

1D-rotational component with inertia

 Description The Rotational Inertia (or Inertia) component models rotational inertia with two rigidly connected flanges.
 Equations $\mathrm{\phi }={\mathrm{\phi }}_{a}={\mathrm{\phi }}_{b}$ $w=\stackrel{.}{\mathrm{\phi }}$ $a=\stackrel{.}{w}$ $Ja={\mathrm{\tau }}_{a}+{\mathrm{\tau }}_{b}$

Variables

 Name Units Description Modelica ID $\mathrm{\phi }$ $\mathrm{rad}$ Absolute rotation angle of component phi $w$ $\frac{\mathrm{rad}}{s}$ Absolute angular velocity of component w $a$ $\frac{\mathrm{rad}}{{s}^{2}}$ Absolute angular acceleration of component a

Connections

 Name Description Modelica ID ${\mathrm{flange}}_{a}$ Left flange of shaft flange_a ${\mathrm{flange}}_{b}$ Right flange of shaft flange_b

Parameters

General Parameters

 Name Default Units Description Modelica ID $J$ $1$ $\mathrm{kg}{m}^{2}$ Moment of inertia J

Advanced Parameters

 Name Default Units Description Modelica ID $\mathrm{default}$ Priority to use $\mathrm{\phi }$ and $w$ as states stateSelect

 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.

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