Sagging Span - MapleSim Help
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Sagging Span

Web span component including sag due to gravity

 

Description

Usage

Connections

Parameters

Summary Variables

Description

The Sagging Span component models a span in which the effect of gravity is considered.

This components uses a discretization approach to account for the distributed mass of the span. Due to the added model complexity, the Sagging Span component should only be used where the span sag is significant.

Usage

The Sagging Span component must be used only as a connector between rollers, drums, a source, or a sink, from the Web Handling Library.

Connections

Name

Description

Modelica ID

framea

Left web 3-D connection point

frame_a

frameb

Right web 3-D connection point

frame_b

weba

Entrance web transfer information port

web_a

webb

Exit web transfer information port

web_b

Parameters

Web Properties

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

d0

1

Ns2m4

Quadratic damping per unit area applied to interior nodes to reduce lateral vibration.

d_0

Web Sensor

Name

Default

Units

Description

Modelica ID

Use sensor

false

 

When checked (true), two signal outputs are enabled for the tension in the span and the material transfer speed

useSensor

Velocity output unit

 

ms

Selects units of the velocity output; enabled when Use Sensor=true

toUnitV

Force output unit

 

N

Selects units of the force output; enabled when Use Sensor=true

toUnitF

Settings

Name

Default

Units

Description

Modelica ID

n

5

 

Number of interior nodes (n+1 segments)

n

Summary Variables

Summary variables provide easy access to quantities that maybe important in simulations to measure performance and other key metrics.

Name

Units

Description

Modelica ID

summary_Tension

[1]

Uniform tension in the web span

summary_Tension

summary_Length

[1]

Length of the web span

summary_Length

summary_MaxSag

[1]

Maximum sag of the web span

summary_MaxSag

summary_Stress

[1]

Stress of the web span

summary_Stress

summary_Strain

[1]

Strain of the web span

summary_Strain

[1] Units are set in the corresponding Web Properties block (under the Summary variables section).

See Also

Web Handling Library

Webs