Rotational Damper - MapleSim Help

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Home : Support : Online Help : MapleSim : MapleSim Component Library : 1-D Mechanical : Rotational : Common : Rotational Damper

Rotational Damper

Linear 1D rotational damper

Modelica Standard Library

	Description
	The Rotational Damper (or Damper) component models a linear velocity-dependent damper.

	Equations
	$τ = d w_{rel} = - τ_{a} = τ_{b}$ $w_{rel} = {\overset{&period;}{φ}}_{rel}$ $φ_{rel} = φ_{b} - φ_{a}$ $a_{rel} = {\overset{&period;}{w}}_{rel}$ $lossPower = τ w_{rel}$

Variables

Name	Units	Description	Modelica ID
$a_{rel}$	$\frac{rad}{s^{2}}$	Relative angular acceleration	a_rel
$φ_{rel}$	$rad$	Relative rotation angle	phi_rel
$φ_{x}$	$rad$	Absolute angle of ${flange}_{x}, x \in \{a, b\}$	flange_x.phi
$τ$	$N m$	Torque between flanges	tau
$τ_{x}$	$N m$	Torque applied to ${flange}_{x}, x \in \{a, b\}$	flange_x.tau
$w_{rel}$	$\frac{rad}{s}$	Relative angular velocity	w_rel
$lossPower$	$W$	Loss power leaving component via heatPort	lossPower

Connections

Name	Description	Modelica ID
${flange}_{a}$	Left flange of compliant 1-dim. rotational component	flange_a
${flange}_{b}$	Right flange of compliant 1-dim. rotational component	flange_b
$heatPort$	Optional heat port	heatPort

Parameters

General Parameters

Name	Default	Units	Description	Modelica ID
$d$	$0$	$\frac{N m s}{rad}$	Damping constant	d
Use Heat Port	$false$		True (checked) means heat port is enabled	useHeatPort

Advanced Parameters

Name	Default	Units	Description	Modelica ID
$φ_{nominal}$	$1 \cdot 10^{−4}$	$rad$	Nominal value of $φ_{rel}$	phi_nominal
State Select	$prefer$		Prioritize $φ_{rel}$ and $w_{rel}$ 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.

See Also

1-D Mechanical Overview

Rotational Springs and Dampers

Download Help Document