modelR_Fric

Rotational resistance describing friction

Extends from Interfaces.FrictionBase.

Information

A bondgraphic modulated resistor describing the torque characteristic of mechanical (rotational) friction.

Parameters

TypeNameDefaultDescription
Real[:,:]mue_pos[0, 0.5][w,mue] positive sliding friction coefficient (w_rel>=0)
Realpeak1peak*mue_pos[1,2] = maximum value of mue for w_rel==0
Modelica.SIunits.Positioncgeo1Geometry constant containing friction distribution assumption
Modelica.SIunits.Forcefn_max1Maximum normal force

Components

TypeNameDefaultDescription
Realmue0Friction coefficient for w=0 and forward sliding
Modelica.SIunits.ForcefnNormal force (fn=fn_max*inPort.signal)
BondLib.Interfaces.BondConBondCon1Bond graph connector
Modelica.Blocks.Interfaces.RealInputf_normalizedNormalized force signal 0..1 (normal force = fn_max*f_normalized; clutch is engaged if > 0)