WebMap is based on original development work by Ray W. James, P.E, PhD, with further development by Southwest Research Institute's Mechanical and Fluids Division (MECFE) and Culverson Software for the Gas Machinery Research Council (GMRC).
The use of crankshaft deflection measurements to assess the alignment of large stationary engines is common practice in industry. At best, these measurements are tedious and the analytical tools to collect, view, and process the data have been generally lacking. The WebMap software program was developed by SwRI and GMRC in 1992 to provide simplified input of crankshaft geometry and the systematic collection of the web deflection measurements. Web deflection measurements taken from all throws of a reciprocating machine can be used to infer displacements of individual journal bearing centers from their true end-to-end crankshaft centerline. These measurements can then be stored and retrieved for analysis, trending, and simplification of later measurements.
Once collected, the raw data and shaft deflection may be viewed in tabular or graphical form. The user may then make trial adjustments (when needed) to the model to develop the set of adjustments necessary to realign the crankshaft.
New and improved features for WebMap 2.1.4:
WebMap can now acquire readings electronically from the Indikon Model 4003 electronic Web Deflection Indicator, saving the tedious chore of writing them down and keying them in. Automatic data acquisition means more readings, for more accuracy.
WebMap can now use English units (inches and mils) or metric units (millimeters and microns) for readings and calculated measurements.
WebMap can now handle machines with up to 19 throws and up to 20 bearings.
WebMap can now handle up to 100 readings per throw.
WebMap now graphs the readings you enter, and the least squares curve fit to the data.
WebMap can now copy the 3-D distorted shaft image to the clipboard, for pasting elsewhere.
WebMap now has a "frozen" configuration state in which nothing about the configuration can be changed, accidentally. If an error needs to be corrected, the user can "un-freeze" it and make the necessary changes.
The installation package now includes configuration files for several popular engines - no need to start from scratch.