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Users Manual for Program TRC_MAUZ

Table of Contents

Introduction

Program TRC_MAUZ translates track irregularities expressed in Cartesian coordinates into a Mauzin-registration. The input data file is read in free format, but the columns in the file shall have the same contents as in a trac-file. The output data file is written in mauz-format. The user also has the possibility to add designed curves to the track irregularities.

See also:

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.

IDENT1, IDENT2, IDENT3

Define up to 3 ident lines.

Declared= Character*80    Default= Blank

RIKTN

'A' If the A-end of the Mauzin vehicle is leading.
'B' If the B-end of the Mauzin vehicle is leading.

Declared= Character*1    Default= 'A'

A

Vector describing the distances between the different axles in the measuring vehicle. A(1) - A(8) defines the distances between the axles measuring the vertical irregularities. A(9), A(10) and A(11) defines the distances between the axles measuring the lateral irregularities. When the A-end of the vehicle is leading axle #5 measures vertical track irregularities. When the B-end of the vehicle is leading axle #4 measures vertical track irregularities. Lateral irregularities are measured by axle #10. The twist is measured by the axles #4 and #6 if the A-end of the vehicle is leading. The twist is measured by the axles #5 and #3 if the B-end of the vehicle is leading. When defining the axle distances it is recommended to use axle #10 as reference axle i.e. A(10) = 0. Axle #10 is used for measuring the gauge of the track.

Declared= Real*4(11)    Default= 11*0. [m]

INFIL

Input track data file
The file is read in free format. The columns in the file shall have the same contents as in a TRAC-file.

Declared= Character*132    Default= Blank

UTFIL

File containing the output data, written in *.mauz-format.

Declared= Character*132    Default= Blank

B

Semi-distance between the nominal running circle in a wheelset.

Declared= Real*4    Default= 0.750

TWIDTH

Nominal gauge in the track read from file INFIL.

Declared= Real*4    Default= 1.435

IPRINT

Print of the Mauzin registration to standard output.
IPRINT=0 Suppress the printout.
IPRINT=1 Print the Mauzin registration.

Declared= Integer*4    Default= 0

AAD

Scale factor for lateral irregularities read from file INFIL.

Declared= Real*4    Default= 1.

AAZ

Scale factor for vertical irregularities read from file INFIL.

Declared= Real*4    Default= 1.

AARF

Scale factor for cant irregularities read from file INFIL.

Declared= Real*4    Default= 1.

AASPV

Scale factor for gauge irregularities read from file INFIL.

Declared= Real*4    Default= 1.

XSTART

Longitudinal coordinate from where the translation will start.

Declared= Real*4    Default= 0.

LM

Length of track section to be transformed.

Declared= Real*4    Default= Entire INFIL

STEGM

Equidistant distance between two consecutive lines in the output data file UTFIL.

Declared= Real*4    Default= Same distance as in INFIL

IHV

Debug print to standard output.
IHV=0 No printing.
IHV=1 Print of lateral and vertical position of rail, left and right side.

Declared= Integer*4    Default= 0

RCURVE

Designed track curvature geometry to be added to the track irregularities read from file INFIL.

Declared= Real*4(20)    Default= 20*0. [m]

HCURVE

Designed track cant geometry to be added to the track irregularities read from file INFIL.

Declared= Real*4(20)    Default= 20*0. [mm]

XCURVE

Breakpoints defining where transition- and circular- curves starts and ends.

Declared= Real*4(38)    Default= 38*0. [m]

NXCURV

Number of breakpoints in vector XCURVE to be considered.

Declared= Integer*4    Default= 0

TCURVE

Type of transition curves to be used for the designed track geometry:

'R'	Clothoid type of transition curve, the curvature is a linear function of chainage.
'S'	Helmert type of transition curve, the curvature has the shape of two second-degree parabolas such that the curvature and its derivative are continuous functions (The Helmert curve is in Germany also known as the Schramm curve).

Declared= Character*1(19)    Default= 19*'R'

SFZH

Scale factor for vertical level, right rail, when writing the Mauzin filtered registration to file UTFIL.

Declared= Real*4    Default= 1.

SFZV

Scale factor for vertical level, left rail, when writing the Mauzin filtered registration to file UTFIL.

Declared= Real*4    Default= 1.

SFYH

Scale factor for lateral versine, right rail, when writing the Mauzin filtered registration to file UTFIL.

Declared= Real*4    Default= 1.

SFYV

Scale factor for lateral versine, left rail, when writing the Mauzin filtered registration to file UTFIL.

Declared= Real*4    Default= 1.

SFFI

Scale factor for column 3, cant unevenness, when writing the Mauzin filtered registration to file UTFIL.

Declared= Real*4    Default= 1.

SFC

Scale factor for column 4, twist, when writing the Mauzin filtered registration to file UTFIL.
Nota Bene: The scale factor 1:11/8 due to the fact that the axle distance is 2.75[m], but the result is presented as the track twist over 2[m], is included in the method and shall not be included here.

Declared= Real*4    Default= 1.

SFSPV

Scale factor for column 7, gauge, when writing the Mauzin filtered registration to file UTFIL.

Declared= Real*4    Default= 1.

Example of an input data file

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

##
##  Input data for program TRC_MAUZ
##

 RIKTN= A   IDENT1= MAUZ-file created by program trc_mauz(A)
 RIKTN= B   IDENT1= MAUZ-file created by program trc_mauz(B)

 INFIL= $gentrc/K0_4a21-n-k.trac   IDENT2= In file : $gentrc/K0_4a21-n-k.trac 
 UTFIL= test/K0_4a21-n-k.mauz      IDENT3= Out file: test/K0_4a21-n-k.mauz

 A(1)  =-6.710,-4.210,-2.075, -.675, 0.675, 2.075, 4.210, 6.710,
 A(9)  =-5.000, 0.000, 5.000,

 B     = 0.75, TWIDTH = 1.435, XSTART= 0.,

 HCURVE= 0,-90,0,-90,90,-90,90    RCURVE= 0,-600,0,-600,600,-600,600
 NXCURV= 0,    XCURVE=  40,80,120,160,200,240,280,320,
 TCURVE='R','S','R',

 SFZH = 1., SFZV = 1., SFFI = 1., SFC = 1., SFYH = 1., SFYV = 1., SFSPV= 1.