GHS Version 9.00 Update
New features and changes since version 08.50
**** Attention all users of GHS/BHS Longitudinal Strength ****
A bug has been discovered that affects Longitudinal Strength results.
Description: A potential inaccuracy in shear values and to a lesser
extent in bending moments.
Versions affected: 8.94 through 9.08B
The error is caused by the light ship weight curve being shifted slightly,
the amount being proportional to trim. It is absent at zero trim and becomes
more evident as the trim angle increases. The shear values are affected more
than the bending moment values. Tests have shown that the error in maximum
shear is approximately 0.5% per degree of trim. The error in maximum bending
moment is an order of magnitude less (approximately 0.05% per degree of trim).
Although this is not a large error and is insignificant compared to
the approximations inherent in typical light ship distribution curves,
we recommend that all GHS and BHS users with version 9.00 who have the
LS module contact Creative Systems for download instructions.
If you wish to receive a new program CD with version 9.10 on it, please
send an email to Creative Systems at
GHS, BHS & BHSY Version 9.00 Shipments Are Complete
As of November 17th the GHS, BHS and BHS/Yacht version 9.00 update has been shipped
to all users who are current with their Maintenance/Support subscriptions. If
you have not received your update package please contact Creative Systems.
GHS Version 9 - Something For Everybody
Along with the usual cornucopia of performance improvements, minor bug fixes,
and fulfilled customer requests, this year's version 9 upgrade release includes
a full range of exciting new features for every category of GHS user. Here's
a whirlwind tour of 9 news items, so you can see for yourself how GHS 9 can
improve the work you do on a daily basis as well as open up GHS' usefulness
in whole new areas:
1) Wizards and templates get you started fast
GHS' comprehensive new Wizard system is ideal for novice users to get a
quick handle on powerful GHS methods. System administrators can adapt the
growing bank of GHS wizards and friendly template dialogs as models for
customizing procedures and input forms for their local users.
2) Enhanced Load Editor module
For the last few years, ships running GHS-based General Load Monitors have
enjoyed a modern Graphic User Interface complete with button-driven control
panels, numerous right-click options, and customizable macros and templates
which can be run without leaving this enhanced load editor. Now GLM
developers can enjoy these great features as well.
3) MultiBody module supports dynamic vessel modification
Vessel parts can now be added and removed on the fly during GHS execution
using the new Read Append feature of the MultiBody (MB) module. MB's multi-
vessel interactions now quickly communicate through silent memory channels,
among many other internal improvements. (Note that Read Append is useful
for adding and subtracting geometry elements of a single vessel that is
not necessarily involved in a multi-body interaction.)
4) GHSCOM module - in spreadsheets and everywhere
The core computational features of GHS can now be accessed "under the hood"
by any program whose language supports Microsoft COM technology such as Java
COM bridge, VB Script, and Visual Basic. In particular, this includes AutoCad
and Microsoft Office applications such as Excel spreadsheets with cells
calling GHS functions. What's more, C/C++ programmers can command GHS via
direct DLL access. All this is possible using the exciting new GHSCOM module.
5) GHSPI module - make and market your own custom GHS plug-ins
The longstanding GHSPI module is now available for Windows in a big way,
providing advanced users with a programming interface for writing their own
custom DLL plug-ins to expand the capabilities of GHS as desired. This module
also provides the ability to sell or freely distribute your plug-in creations
to other GHS users in a secure manner.
6) IDLE macro for easy background processing
It's now easy to have GHS perform special tasks in the background while waiting
for commands or Load Editor operator input - just create a macro named IDLE.
One of the many possible uses is for real-time monitoring of external gauges
via a GHSPI plug-in.
7) Report writing to PDFs
GHS supports the Acrobat Distiller print driver for saving your reports in
the popular PDF format. Several other problematic printing situations have
likewise been addressed.
8) Variables - smarter than ever
Dozens of new system variables have been added for returning GHS status
information, such as LCF, TCF, and WPA. But the real news in this department
are the new unit-smart variable types LENGTH, AREA, VOLUME, WEIGHT, and
MOMENT that automatically convert their values to the current unit settings,
however they might change.
9) Enhancements, enhancements, enhancements
Hundreds of features, big and small, have been enhanced throughout the GHS
system for version 9 - for example: Vertical points of attachment may be
specified for tanks and weights. Graphics have been made brighter, with
dialogs and buttons for errors and waiting to continue. Exact text files
may be written using the MESSAGE (REPORT) command. Grain Shift, Hopper,
Tank Soundings, and Shape Assembler boast new Windows versions. Tanks can be
protected at will from any load changes. And the list goes on.
Previous Version Update Features
Copyright (C) 2008
Creative Systems, Inc.