Name

Default

Units

Description

Modelica ID

Use Default Properties (WP1)

true

When checked (true), web properties are defined by the closest Web Properties block found

useDefault

Web Properties

WP1

Name of the record containing the web properties (enabled when Use default properties = false)

wp

Name

Default

Units

Description

Modelica ID

Use alternative configuration

$\mathrm{false}$

Choose between two possible solutions for the web/roll configuration

useAltConfig

Include slippage

$\mathrm{false}$

When unchecked (false), no-slip conditions are assumed

includeSlippage

Flip direction

$\mathrm{false}$

Use this option when building web lines that go from right to left

flipDirection

Use fixed base

$\mathrm{false}$

When checked (true), frame_c is disabled and the roller frame is fixed in the inertial coordinate frame (addition position and orientation parameters are enabled instead)

useFixedBase

$r$

$\left[0\,0\right]$

$m$

Location of frame_b with respect to ground. Available when Use fixed base = true

InitPos

$\mathrm{\theta }$

$0$

$\mathrm{deg}$

Rotation about z-axis. Available when Use fixed base = true

InitAng

Name

Default

Units

Description

Modelica ID

${\mathrm{D}}_1$

$0.2$

$m$

Diameter of roller 1

D1

Use CAD for roller 1

$\mathrm{false}$

When checked (true), mass and inertia for roller 1 are defined from an externally attached CAD component or a rigid body component

useCAD1

${\mathrm{D}}_{\mathrm{i1}}$

$0$

$m$

Inner diameter of roller 1

Di1

${\mathrm{D}}_2$

${\mathrm{D}}_1$

$m$

Diameter of roller 2

D2

Use CAD for roller 2

$\mathrm{false}$

When checked (true), mass and inertia for roller 2 are defined from an externally attached CAD component or a rigid body component

useCAD2

${\mathrm{D}}_{\mathrm{i2}}$

$0$

$m$

Inner diameter of roller 2

Di2

$L$

$1.2$

$m$

Roller length

L

Use cylindrical geometry

$\mathrm{true}$

When checked (true), roller inertia is calculated assuming a uniform cylindrical geometry

useCylindricalGeometry

$\mathrm{\rho }$

$2.7·{10}^3$

$\frac{\mathrm{kg}}{m^3}$

Roller density; enabled when using cylindrical geometry

rho_roll

$m_1$

$1$

$\mathrm{kg}$

Roller 1 mass; enabled when not using cylindrical geometry

m1

$m_2$

$1$

$\mathrm{kg}$

Roller 2 mass; enabled when not using cylindrical geometry

m2

$J_1$

$0.005$

$\mathrm{kg}{m}^2$

Roller 1 rotational inertia; enabled when not using cylindrical geometry

J1

$J_2$

$0.005$

$\mathrm{kg}{m}^2$

Roller 2 rotational inertia; enabled when not using cylindrical geometry

J2

$d_1$

$0$

$\frac{Nms}{\mathrm{rad}}$

Bearing viscous damping constant (roller 1)

d1

$d_2$

$0$

$\frac{Nms}{\mathrm{rad}}$

Bearing viscous damping constant (roller 2)

d2

Name

Default

Units

Description

Modelica ID

Add eccentricity, Roller 1

$\mathrm{false}$

When checked (true), a parameter is enable for the roller eccentricity

addEccentricity1

$e_1$

$0$

$m$

Roller eccentricity

ecc1

${\mathrm{\theta }}_{01}$

$0$

$\mathrm{deg}$

Initial eccentricity angle

theta_ecc01

Add eccentricity, Roller 2

$\mathrm{false}$

When checked (true), a parameter is enable for the roller eccentricity

addEccentricity2

$e_2$

$0$

$m$

Roller eccentricity

ecc2

${\mathrm{\theta }}_{02}$

$0$

$\mathrm{deg}$

Initial eccentricity angle

theta_ecc02

Name

Default

Units

Description

Modelica ID

${\mathrm{\mu }}_c$

$0.2$

Coulomb coefficient of friction

mu_c

Use constant coefficient of friction

$\mathrm{true}$

Checked (true) means the coefficient of friction is constant with velocity, otherwise the following parameters are enabled [2]

useConstantCoF

$\mathrm{Peak}$

$1$

Static friction is $\mathrm{Peak}\cdot {\mathrm{\mu }}_c$

peak

$v_s$

$0.01$

Stribeck sliding velocity

vs

$n_{\mathrm{Decay}}$

$2$

Decay exponent

nDecay

${\mathrm{\mu }}_d$

$0$

Viscous coefficient of friction

mu_d

$v_0$

$1·{10}^{\mathrm{-4}}$

$\frac{m}{s}$

Tight/slack side switching velocity boundary

v0

$P_1$

$0$

$\mathrm{Pa}$

Surface pressure for roller 1 (positive is suction) [1]

P1

$P_2$

$0$

$\mathrm{Pa}$

Surface pressure for roller 2 (positive is suction) [1]

P2

Name

Default

Units

Description

Modelica ID

$m_f$

$1$

$\mathrm{kg}$

Mass of frame

m_frame

$J_f$

$0.01$

$\mathrm{kg}{m}^2$

Rotational inertia of frame

J_frame

$Y_1$

$-{\mathrm{D}}_1$

$m$

Vertical offset for roller 1; see [1]

Y1

$Y_2$

$\+{\mathrm{D}}_2$

$m$

Vertical offset for roller 2; see [1]

Y2

Name

Default

Units

Description

Modelica ID

Show rollers

$\mathrm{true}$

When checked (true), a visualization of rollers is created

showVisualization_roller

Transparent roller

$\mathrm{false}$

When checked (true) the roller visualization is transparent

transparent_roller

Roller color

Blue

Roller color

color_roller

Band color

Yellow

Band color

color_band

Band angle

$20$

$\mathrm{deg}$

Band angle

band_angle

Show frame

$\mathrm{true}$

When checked (true), a visualization of the frame is created

showVisualization_frame

Transparent frame

$\mathrm{false}$

When checked (true) the frame visualization is transparent

transparent_frame

Frame color

Orange

Frame color

color_frame

Show reaction force arrow

$\mathrm{false}$

When checked (true) an arrow is shown for the reaction force

showReactionForce

Show reaction torque arrow

$\mathrm{false}$

When checked (true) an arrow is shown for the reaction torque

showReactionTorque

Name

Default

Units

Description

Modelica ID

Use effective radius

$\mathrm{false}$

When checked (true), the roller radius is padded with half the web thickness

useEffectiveRadius