3
EDITING INPUT FILES
3.1
GENERAL INFORMATION
Z88 works with the
following files:
(1) Input Files:
Z88I1.TXT (general structure data,
coordinates, coincidence, material informations)
Z88I2.TXT (boundary conditions, loads,
constraints)
Z88I3.TXT parameters for stress processor
Z88D)
Z88I4.TXT (parameters for the sparse matrix
solvers Z88I1/Z88I2 and Z88I1/Z88PAR)
Z88I5.TXT (surface and pressure loads – if
needed)
Z88NI.TXT (input file for the mesh generator)
Produce these input files
with your CAD program and the CAD converter Z88X
or with a 3D CAD system creating COSMOS files
and converting them with Z88G or with an
editor (e.g. Notepad
of Windows, Emacs, Joe at UNIX) or word processing
program (e.g. Word for Windows at Windows). If using a word
processor systems keep in mind to edit pure ASCII
texts without any hidden control characters ... every word processing
program
has such an option. Why not using your own editor (if you do not want
or cannot
work with a CAD program) ?
So how you can work with
the editor/word processor you are familiar with and used to.
Details to the input
files see sections 3.2 pp.
(2) Output Files:
Z88O0.TXT (processed
input data for documentation)
Z88O1.TXT (processed boundary conditions for documentation)
Z88O2.TXT (calculated displacements)
Z88O3.TXT (calculated stresses)
Z88O4.TXT (calculated nodal forces)
The files Z88O5.TXT and Z88O8.TXT
are not regular Z88 output files, containing the coordinates of the
stress
points and the reduced stresses for use for the plot program Z88O internally. It is a
pure ASCII file, so that advanced users can use it for own routines, if
necessary.
These files are used
internally and are not for editing. They serve the fast data
interchange
between Z88 modules.
Z88O1.BNY
Z88O3.BNY
Z88O4.BNY (only for internal communication of the sparse matrix solvers)
Why work with files? Is
that not old-fashioned and does "interactive" working not do a better
job? Z88 is designed as an open, transparent system according to the
UNIX
philosophy: Several, compact modules communicate via files together.
Downward compatibility:
Z88 files for V11.0 and V12.0
are okay for Z88 V13.0, if the the plate
flag and the surface and pressure loads flag are supplied.
Rules for entering
values:
There is no need for
special rules or field divisions, only the usual C rules apply:
Integer numbers
Correct |
1 |
345 |
55555 |
0 |
Wrong |
1. |
345. |
55555E+0 |
no entry |
Floating point
numbers (Z88
uses internally double precision floating point numbers [Double])
Correct |
1. |
345 |
5.5555E+10 |
0 |
Wrong |
1, |
345, |
O (letter O) |
no entry |
Z88 input files may have
comments in every line if all corresponding data has been filled out
before. Separate
the last data and the comment at least by one blank. Lines in Z88 input
files
can include 250 bytes (really needed are noticeably less than 80).
Blank lines
and pure comment lines are not permitted.
Always check input files
with Z88V before a Z88 run.