|
|
 |
 |
- The
programs are written to use MATLAB's graphic user
interface capabilities.
- The
database assumes six different rope materials, Steel,
Nylon, Dacron, Polypropylene, Polyethylene, and Kevlar
-
Property data for the mooring lines is supplemented by
“joiners” such as shackles.
-
Design and evaluation of single point oceanographic
moorings, mooring data, and towed body apparatus.
- Both
surface (including "S" moorings) and sub-surface
moorings can be designed.
-
Spatial position of each mooring element relative to the
anchor is determined under the influence of time
dependent 3 dimensional currents.
Users:
-
Oceanographic institutions and universities.
-
Over 500 users worldwide.
Computer
systems:
-
Matlab version 5.x or higher required.
-
Windows 95, 98, NT, and HP-UNIX tested.
-
Supports common printer configu-rations.
Postprocessor output:
- The
mooring is plotted.
-
The
final element positions, wire tensions, lengths and
angles are printed.
Solution:
-
Once all of the angles have been calculat ed, the
position of each element is calculated using the length
of each element.
Modelling:
- Each
mooring element has a static force balance in each
direction (x, y, and z).
-
Between solutions the mooring has time to adjust.
- No
inertial affects are considered.
-
A Wood Hole (WHIO) safety factor is used to estimate a
safe, realistic anchor weight.
Loading:
-
Static current, wind and density fields.
- Load
time dependent currents and density profiles.
-
Wave action is not considered.
Summary:
Mooring Design and Dynamics
is a set of
MATLAB routines to assist in the design and evaluation
of single point oceanographic moorings, mooring data, and
towed body apparatus. Both surface (including "S" moorings)
and sub-surface moorings can be designed and evaluated using
a set of graphic user interfaces and a preliminary database
of components. The package allows the user to design and
evaluate the dynamics of oceanographic moorings under the
influence of time dependent 3 dimensional currents by
solving a set of force balance equations in order to
determine the spatial position of each mooring element
relative to the anchor. Wire, rope, and chain segments are
divided into multiple "hinged" pieces, so that the shape of
the mooring and towed line will realistically represent a
sub-surface, surface mooring, or towed body under the
influence of a sheared current. For the Towed body problem,
both the currents and ship velocity can be set for complex
cross flow operations.
|
 |
 |
|