Input/Output, Hydrostatics for One Waterline (English
Units)
Description:
This spreadsheet
automatically computes hydrostatics characteristics for
one waterline. If the waterline is level this data may be used as an
input source for the vessel's "Curves of Form."
Though optional, this spreadsheet is best utilized in
conjunction with a Displacement Sheet (Product
Disp-e) and a
Waterplane Sheet (Product
WP-e). A
further enhancement is combining this sheet with a Displacement sheet and
a Waterplane sheet. In fact a product is available that combines all
these sheets together, it is called Waterline Hydrostatics Data Sheet
(Product WL-hydro-e). This combination facilitates faster and easier
computation for a given waterline. In the combined case calculations
are more automated, significantly minimizing entry input time.
Electronic
Document Type: Microsoft® Excel®
spreadsheet Cost:
Free
Number of
Pages: single
sheet
Inputs:
 |
The following dimensional and property input data are required:
 |
Define the
WL condition to be evaluated by entering
the forward draft (TFWD), midships draft
(TMID), aft draft (TAFT) and
maximum draft (T). |
|
Then enter
in the waterline length (LWL), waterline beam (BWL),
station spacing (s) and maximum hull cross sectional
area (SA) below the waterline. |
|
Then enter
in the specific gravity (S) of the water that the vessel is
in. If this is in regard to a stability test enter the average
specific gravity taken at the time of stability test. |
|
| Items related to sectional area inputs:
|
Enter in
the displaced volume (V), displacement (D), Longitudinal Center of
Buoyancy (LCB) and vertical center of buoyancy (VCB).
This data is normally obtained
from a displacement sheet which involves sectional area
characteristics. Hawaii Marine's displacement sheet, product
Disp-e, would work here.
Alternatively calculative results obtained by hand calculations,
CAD output or another source may inserted here. |
|
| Items related to half breadth inputs:
|
Enter in
the waterplane area (AWP), longitudinal center of floatation
(LCF), longitudinal moment of inertia (ILCF) and transverse
moments of inertia (IT). This data
is normally obtained from a waterplane sheet which involves half
beam characteristics. Hawaii Marine's waterplane sheet, product
WP-e, would work
here. Alternatively calculative results obtained by hand
calculations, CAD output, planimeter or
some another source may inserted here. |
|
|
Optional Input Items:
|
Vessel name, project description, client and
calculation date. |
|
Outputs:
| The
automatic output generated are the tons per Inch (TPI),
longitudinal metacentric radius (BML), transverse metacentric
radius (BMT), distance from keel to longitudinal metacenter (KML),
distance from keel to transverse metacenter (KMT), bock
coefficient (CB), prismatic coefficient (CP), and miship's
coefficient (CM). |
Suggested
Reading (see
References page for
more detail on these items):
|
Microsoft Excel user manuals |
|
Principles of Naval Architecture, Edward V. Lewis, SNAME |
|
Basic Ship Theory, Rawson & Tupper |
|
Applied Naval Architecture, Robert B. Zubaly |
|
Introduction to Naval Architecture, E. C. Tupper |
|
Introduction to Naval Architecture, Thomas Gillmer and
Bruce Johnson |
Terms:
Prior to purchase, read our
End
User License Terms.
Download
Now:
Click one of the following buttons to pay.
After payment you will be taken directly to the download page.
Download
Now: Click the following link to
download the free template.
Free Download
Minimum
System Requirements: Windows 95/98/NT/2000/XP
Sample:
A sample document is shown below.
|
|
