has been installed on hundreds of vessels including tankers, bulkers,
container ships, drill ships, research vessels, naval vessels, ice
breakers, fishing vessels and passenger vessels.
not rely on pre computed hull and tank characteristics; rather,
it computes these directly from geometrical models of the ship and
its tanks. This simplifies the initial data preparation and eliminates
a source of errors. It also leads to more accuracy over a wider
range of trim angles, and makes possible flooding and grounding
calculations using the same software.
GLM is straightforward and easy to use. It is entirely under menu
control where the operator need only select among choices presented
on the screen. A spreadsheet-style interface parallels graphics
showing the locations of tanks and other weights items. The program
presents immediate responses of draft, trim and stability margin
when the operator changes loads. Connections to tank gauging systems
can also be arranged for automatic tank load monitoring.
versions of GLM can easily be produced to meet special requirements.
The flexibility of this program and the willingness of the developers
to meet special requirements cannot be overemphasized. Many features
are available through configuration settings, making it economical
to apply GLM to all kinds of vessels without incurring extra development
crane and offshore applications, detailed simulations of cranes
and mooring systems can be included in the configuration. For tanker
applications, volume expansion of petroleum products with temperature
change is available. Integrated tug/barge systems can make use of
the GLM Multi-Body capability to find loadings that minimize vertical
force at the coupling. A Ballast Advisor feature helps determine
the amount of ballast to shift in order to achieve trim and list
corrections. Hull-twisting torque calculations and flexible container
loading arrangements are available for container ships.
scalable, graphical views of loading conditions that accurately
show tank loading levels are available in a wide variety of configurations.
These can be viewed on screen and also included in reports. Righting-arm
curves and various longitudinal strength curves are also available
both on-screen and in reports.
GLM software is available not only from Creative Systems but also
from many of the naval architects who use GHS in the course of preparing
Trim and Stability books. Supplying GLM along with the T & S
book is a cost-effective way to make sure the client is able to
make good use of the information.