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Create and animate a wheel/rail-geometry function

• Introduction
• Download the example
• Examine the directory "kpf"
• Run the example kpff/uic60_i40_i20.kpff
• Examine the results in kpfr
• View PDF results
• Examine the results in postprocessor GPLOT

Introduction

To speed up simulation times, most wheel/rail-coupling elements requires that the wheel- and rail- profiles are given via so called "wheel/rail-geometry functions". These functions are created by preprocessor KPF.
However wheel/rail-coupling element creep_tanel_springs_1 do not need pre-calculated wheel/rail-geometry functions.

Download the example

• Download the tar-file kpf.tgz
• List the contents of the tar-file with "tar tvfkz kpf.tgz"
• Extract the contents of the tar-file with "tar xvfkz kpf.tgz"

Examine the directory "kpf"

Run the example kpff/uic60_i40_i20.kpff

Double-click file kpff/uic60_i40_i20.kpff and select open->run with the right mouse button. The execution of program KPF will now start, using file kpff/uic60_i40_i20.kpff as input.

As output three result files will be produced:

kpfr/uic60_i40_i20.kpfr	Wheel/rail-geometry function to be used as input in the main calculation programs in GENSYS
diags/uic60_i40_i20.pdf	A PDF file showing the wheel/rail-geometry functions
gp/uic60_i40_i20.gp	GPdat-file for animation of the wheel/rail-geometry functions

Examine the results in kpfr

File kpfr/uic60_i40_i20.kpfr is a plain text-file. Just mark the file by double-clicking the file and with the right mouse-button select open->op

View PDF results

File diags/uic60_i40_i20.pdf is a PDF file. View its contents by double-clicking the file and with the right mouse-button select open->run

For an explanation of the diagrams, see this link kpf.html#jOutput

Examine the results in postprocessor GPLOT

• Double-click directory runf/ in the subdirectory text area.
• Double-click file runf/kpfr_animation.tsimf in the file text area.
• Press the Gplot-pushbutton.
• Open file gp/uic60_i40_i20.gp by selecting "File->read_GPdat" in the pulldown menu bar
• Select "View->show 4 diags" from the pulldown menu bar
• The upper-left and upper-right drawing areas now shows a figure of the wheel/rail-geometries
• Please fill in wheel number 111l for the lower left drawing area and 111r for the lower right drawing area
• Set the radio buttons Drfn for the lower left and right drawing areas.
• Start the animation by pressing the "Fwd"- or "Back"- pushbutton.
• The animation can also be controlled by pulling the right scale in the bottom of the GPLOT-window.