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Users Manual for Program VAMPIRE2GENSYS  

Table of Contents

Introduction
Postprocessing
Input data commands
Example

Introduction

Program VAMPIRE2GENSYS translates a Vampire input data file into Gensys format.

Postprocessing

Program VAMPIRE2GENSYS does a lot of the translation work. However there are some translation work that needs to be done manually.

Before running program VAMPIRE2GENSYS:

1. Change all $ to S in all variable names
   In nedit this can be done by setting "Regular Expression" and replacing:
   \$(.)
   with:
   S\1
   
2. Change all @ to a in all variable names
   In nedit this can be done by setting "Regular Expression" and replacing:
   @(.)
   with:
   a\1
   
3. Remove longitudinal offsets in car-bodies c.g.
   In gensys the position of c.g. of all bodies are given relative to the local coordinate system of the body. The local coordinate system is often located in the geometric mid point of the body.
   In contrast Vampire defines c.g. of the bodies in absolute coordinates.
   To avoid complicated expressions for all longitudinal positions of all couplings connected to the car-body, please set c.g. in longitudinal direction of the car-body equal to its mid point. When the translation is ready add the offset in c.g. to the car-body manually.

After running program VAMPIRE2GENSYS:

1. Stiffness in longitudinal direction
   In order to keep the speed up through long simulation it is necessary to apply a longitudinal force on the train-set. The longitudinal force is applied via the spring kxcg. Program VAMPIRE2GENSYS assumes that the total weight of the vehicle is 60e3 [kg]. In order to make a better assumption please make a better calculation of the total weight mvhe.
2. Names of masses and couplings
   In Vampire the user cannot set names on the masses and couplings. Therefore they will in Gensys be called: mass0001, mass0002, ,,, etc.
   In order to give more descriptive names of the masses and the couplings. The names can be changed by replacing all occurrences of massXXXX with something else by a text editor.
3. Double signs
   Replace +- or -+ expressions with a - sign Replace ++ or -- expressions with a + sign

Input data commands

Input data is read in free format, valid separators between the input values are <space>, <comma>, <tab>, <equal sign> or <carriage return>. The commands can be written both in lower and upper case letters. The operation of the program is controlled by the commands described below; some of the commands also need arguments.

INFIL

Vampire *.run-file
On the third line of the *.run-file program VAMPIRE2GENSYS expects to find the reference to the Vampire *.veh-file. If the name of the *.veh-file starts with the letters C: they will be removed from the file name.
Declared= Character*132    Default= Blank

UTFIL

Output written in Gensys format.
Declared= Character*132    Default= Blank

Example of an input data file

Following example: Master.vampire2gensysf can be used as a master file:

##
##      Input data for program VAMPIRE2GENSYS
##

  INFIL= workegnl.run
  UTFIL= workegnl.tsimf