Translational Linear Speed Dependent Force - MapleSim Help

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Linear Speed Dependent Force

Linear dependency of force versus speed

 Description The Linear Speed Dependent Force component generates a force at the flange that is linearly dependent on the speed of the flange. The boolean parameter Force Direction determines whether the force is the same direction regardless the direction of motion. 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 $f={f}_{\mathrm{flange}}=-{f}_{\mathrm{nominal}}\left\{\begin{array}{cc}\left|\frac{v}{{v}_{\mathrm{nominal}}}\right|& \mathrm{Force Direction}=\mathrm{true}\\ \frac{v}{{v}_{\mathrm{nominal}}}& \mathrm{otherwise}\end{array}$ $v=\stackrel{.}{s}$ $\mathbf{if}\mathrm{Use Support Flange}\mathbf{then}{f}_{\mathrm{support}}=-f$ $s={s}_{\mathrm{flange}}-\left\{\begin{array}{cc}{s}_{\mathrm{support}}& \mathrm{Use Support}\\ 0& \mathrm{otherwise}\end{array}$

Variables

 Name Units Description Modelica ID $f$ $N$ Accelerating force acting at flange f ${f}_{\mathrm{flange}}$ $N$ Accelerating force acting at flange flange.f ${f}_{\mathrm{support}}$ $N$ Force acting at support support.f $s$ $m$ Distance between flange and support s ${s}_{\mathrm{flange}}$ $m$ Position of flange flange.s ${s}_{\mathrm{support}}$ $m$ Position of support support.s $v$ $\frac{m}{s}$ Velocity of flange with respect to support v

Connections

 Name Description Modelica ID $\mathrm{flange}$ Flange of component flange $\mathrm{support}$ support

Parameters

 Name Default Units Description Modelica ID ${f}_{\mathrm{nominal}}$ $N$ Nominal force (if negative, force is acting as load) f_nominal ${v}_{\mathrm{nominal}}$ $\frac{m}{s}$ Nominal speed v_nominal $\mathrm{Force Direction}$ $\mathrm{true}$ True (checked) means the sign of the force is independent of direction of movement ForceDirection Use Support Flange $\mathrm{false}$ True (checked) enables 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.