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Features
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Click
to enlarge screen captures
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adjacent picture shows web deflection measurements taken with
reference zero angle in the pin-down position and positive angles
in the clockwise direction as viewed from the flywheel end.
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The
configuration screen:
- Bearings
and throws are depicted on the bar at the bottom of the
screen, where they can be dragged into correct position,
using the mouse.
- Fields
for entering the shaft geometry (shaft diameter, pin diameter,
etc.).
- Fields
for Manufacturer, Model, Site, and Unit name allow tracking
of machine identity.
- The
zero-up / zero-down selector allows choice of angle zero
reference.
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The
data entry screen allows you to rotate the crankshaft and
enter new deflection measurements:
- The
throw list (upper left) allows selection from the available
throws for entry.
- The
extension slider (upper center) adjusts the extension used
for the current throw.
- The
throw (pictured in upper center) can be dragged via the
mouse to enter an angle.
- The
deflection field (below the throw picture) can be used to
enter a deflection.
- The
reading list (upper right) shows all readings entered for
the current throw.
- The
analysis (center right) shows the r2 value of
the curve fit to the data.
- The
graph(lower right) shows each reading entered, and the least
squares curve.
- The
notes field (at bottom) allows the user to attach a comment
to the current data set.
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| If
you prefer, you can enter the measurements into a table. |
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| From
the entry screen, you can also recall saved data, or save the
current data to disk. A WEB file can have up to 99 data sets |
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| A
graph screen shows the displacement of each bearing and each
throw, predicted from the measured web deflections.
Also shown
are the numerical values of each bearing displacement, and
an estimation of the stress parameter at each throw as a result
of the deformed shaft shape. The stress parameter is based
on the allowable bending in a straight shaft of the same main
diameter.
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| If
there has been more than one set of readings taken and stored
for a given machine, an animation screen can show the history
of bearing displacements, as an aid to detecting trends. |
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| A
3-dimensional graph can show the deformed shaft shape.
The user
can rotate the shaft to any desired orientation in 3-D space,
for clearer visualization.
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| A
complete report can be given, with all entries, and all results.
The report can be printed directly, or put into a file for importation
into a word processor. |
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| WEBMAP
2 is designed to operate with the new Andiron Model 4003 electronic
Web Deflection Indicator, and receive readings every 10 degrees
as you bar the unit over! No more writing down readings and
then keying them in. |
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