Merged Web Properties
Record of web parameters
Description
Usage
Equations
Parameters
The Merged Web Properties record specifies the parameters that define the mechanics of the web and its visualization.
A Merged Web Properties record defines the properties of the merged web based on law of mixtures. The Merged Web Properties record uses information from other Web Properties records.
Example:
A Merged Web Properties record is used the same way as a Web Properties record.
The merged web properties are calculated according to the following equations:
Thickness:
thout=cr⁢∑i=1nthi
where subscript out is for the merged web, index i is for the i-th incoming web, cr is the compression ratio, and 2≤n≤10 is the number of merging webs.
Density:
ρout=∑i=1nthi⁢ρicr⁢∑i=1nthi
Modulus of Elasticity (assuming all webs have the same width):
Eout=∑i=1nthi⁢Ei∑i=1nthi
Poisson's ratio (assuming all webs have the same width):
νout=∑i=1nthi⁢νi∑i=1nthi
Damping ratio:
drout=1n⁢∑i=1ndri
Properties
Name
Default
Units
Modelica ID
n
2
Number of merging webs
Merging Web Properties
Names of Web Properties records defining the incoming webs
wp_i
Comp Factor
1
Ratio of the thickness of the mixed web to the sum of the thicknesses of the component webs
CompressionFactor
Width option
Averaged
Select how to treat differences in the web width
width_option
Visualization
thvis
0.01
m
Thickness for visualization
th_v
Transparent web
false
When checked (true), web is transparent
transparent_web
Use tension
When checked (true), web color is based on its calculated tension
colorMode
Web color
White
web_color
Min tension color
Green
Minimum tension web color
web_color1
Max tension color
Red
Maximum tension web color
web_color2
Roll color
Roll color. Only used in wind/unwind drums for the color of the roll
roll_color
τmin
0
N
Minimum Tension: color 1
minTension
τmax
1000
Maximum Tension: color 2
maxTension
ndiv
Number of segments used for web visualization
nDiv
Summary Variables
Value
Force unit
Unit for summary variable summary_Tension
forceUnitSummary
Length unit
Unit for summary variable summary_Length
lengthUnitSummary
Wrap angle unit
degree
Unit for summary variable summary_WrapAngle
angleUnitSummary
See Also
Laminating
Web Handling Library
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