Geometria navei

Nava este

un corp

tridimensional ce

poate

fi

reprezentat:

• În formă grafică –

planul de forme (lines plan)-

transversalul (body plan (front View) )

-

longitudinalul (shear plan (side view))-

orizontalul (half breadth plan (top view))

• În forma de numerica

-

tabel

de trasaj

(Table of Offsets)Table of Offsets)

0.000.00 0.250.25 0.500.50 0.750.75 1.001.00 1.501.50 2.002.00 3.003.00 4.004.00 5.005.00 6.006.00 7.007.00 8.008.00 9.009.00 10.0010.00 11.0011.00

--0.500.50 -- -- -- -- -- -- -- -- -- -- 0.000.00 1.151.15 1.811.81 2.262.26 2.622.62 2.942.94

0.000.00 -- -- -- -- -- -- -- -- -- -- 0.990.99 1.941.94 2.512.51 2.932.93 3.293.29 3.613.61

0.500.50 -- -- -- -- -- -- -- -- -- 0.560.56 1.921.92 2.692.69 3.183.18 3.573.57 3.913.91 4.234.23

1.001.00 0.030.03 0.380.38 0.510.51 0.590.59 0.660.66 0.770.77 0.860.86 0.970.97 1.071.07 1.771.77 2.782.78 3.393.39 3.813.81 4.174.17 4.504.50 4.824.82

1.501.50 0.120.12 0.860.86 1.131.13 1.311.31 1.451.45 1.681.68 1.881.88 2.132.13 2.312.31 2.852.85 3.573.57 4.054.05 4.414.41 4.734.73 5.045.04 5.365.36

2.002.00 0.350.35 1.381.38 1.761.76 2.022.02 2.222.22 2.552.55 2.812.81 3.163.16 3.403.40 3.803.80 4.304.30 4.674.67 4.974.97 5.275.27 5.565.56 5.855.85

2.502.50 0.730.73 1.951.95 2.412.41 2.722.72 2.962.96 3.363.36 3.663.66 4.074.07 4.344.34 4.634.63 4.964.96 5.245.24 5.505.50 5.765.76 6.036.03 6.306.30

3.003.00 1.251.25 2.562.56 3.063.06 3.423.42 3.693.69 4.124.12 4.434.43 4.854.85 5.125.12 5.345.34 5.555.55 5.775.77 5.995.99 6.226.22 6.476.47 6.716.71

4.004.00 2.642.64 3.953.95 4.464.46 4.814.81 5.095.09 5.485.48 5.745.74 6.086.08 6.286.28 6.426.42 6.556.55 6.706.70 6.876.87 7.047.04 7.217.21 7.397.39

...... ......16.0016.00 4.954.95 5.935.93 6.296.29 6.536.53 6.706.70 6.906.90 7.007.00 7.127.12 7.197.19 7.247.24 7.297.29 7.377.37 7.477.47 7.587.58 7.687.68 7.787.78

17.0017.00 3.673.67 4.614.61 4.964.96 5.205.20 5.385.38 5.615.61 5.745.74 5.925.92 6.046.04 6.136.13 6.236.23 6.376.37 6.566.56 6.796.79 7.017.01 7.237.23

17.5017.50 2.932.93 3.843.84 4.184.18 4.414.41 4.594.59 4.834.83 4.984.98 5.185.18 5.325.32 5.405.40 5.495.49 5.665.66 5.915.91 6.196.19 6.486.48 6.776.77

18.0018.00 2.192.19 3.053.05 3.383.38 3.613.61 3.793.79 4.054.05 4.224.22 4.454.45 4.584.58 4.594.59 4.644.64 4.824.82 5.115.11 5.445.44 5.805.80 6.156.15

18.5018.50 1.421.42 2.232.23 2.572.57 2.802.80 2.982.98 3.273.27 3.473.47 3.723.72 3.833.83 3.723.72 3.673.67 3.853.85 4.174.17 4.554.55 4.974.97 5.395.39

19.0019.00 0.640.64 1.401.40 1.741.74 1.981.98 2.172.17 2.482.48 2.722.72 3.013.01 3.063.06 2.782.78 2.582.58 2.762.76 3.093.09 3.513.51 3.993.99 4.484.48

19.5019.50 -- 0.550.55 0.890.89 1.141.14 1.351.35 1.701.70 1.971.97 2.312.31 2.282.28 1.771.77 1.381.38 1.531.53 1.871.87 2.322.32 2.862.86 3.413.41

20.0020.00 -- -- -- 0.290.29 0.520.52 0.910.91 1.231.23 1.621.62 1.491.49 0.690.69 0.000.00 0.180.18 0.500.50 0.990.99 1.581.58 2.192.19

20.2520.25 -- -- -- -- -- 0.520.52 0.860.86 1.281.28 1.081.08 -- -- -- -- -- 0.480.48 1.471.47

Tabel de trasaj

Plutiri

Cup

le

Half-Breadth Plan-

Intersection of planes (waterlines) parallel to the baseline (keel).

Orizontalul planului de formeOrizontalul planului de forme

Shear Plan-Intersection of planes (buttock lines) parallel to the centerline

plane

Longitudinalul planului de formeLongitudinalul planului de forme

Body Plan-

Intersection of planes to define section line

-

Sectional lines show the true shape of the hull form-

Forward sections from amidships : R.H.S.

-

aft sections from amid ship : L.H.S.

Transversalul planului de formeTransversalul planului de forme

x y z

84.5 0.0000 0.0588

84.5 1.0000 0.3126

84.5 2.0419 1.0000

84.5 2.7758 2.0000

84.5 3.0532 3.0000

84.5 2.9589 4.0000

84.5 2.6635 5.0000

84.5 2.3954 6.0000

84.5 2.4763 7.0000

84.5 2.9641 8.0000

84.5 3.6611 9.0000

84.5 5.0000 10.5442

84.5 7.8939 13.8543

x y z

4.2791 0.0000 2.0000

5.7885 0.4454 2.0000

6.5325 0.7093 2.0000

7.1087 1.0000 2.0000

8.4402 2.0000 2.0000

9.4798 3.0000 2.0000

10.4784 4.0000 2.0000

11.5321 5.0000 2.0000

12.9020 6.0000 2.0000

14.9774 7.0008 2.0000

18.8209 7.9249 2.0000

23.5932 8.1998 2.0000

61.1767 8.1949 2.0000

64.3088 8.1657 2.0000

67.8427 8.0000 2.0000

70.5885 7.7695 2.0000

75.2944 7.0703 2.0000

80.0003 5.9730 2.0000

84.7062 4.5753 2.0000

89.4121 2.9590 2.0000

92.2498 1.9977 2.0000

94.1300 1.6555 2.0000

96.4830 0.8461 2.0000

97.0783 0.0000 2.0000

?

2.5 Basic Dimensions and Hull Form Characteristics

• LOALOA(length over all )(length over all )

: overall length of the vessel• DWLDWL(design waterline)(design waterline)

: water line where the ship is designed to

float• FPFP(forward perpendicular)(forward perpendicular)

: imaginary vertical line where the bow

intersects the DWL• APAP(aft perpendicular)(aft perpendicular)

: imaginary vertical line located at either

the rudder stock or intersection of the stern with DWL

LOA

Lpp

APFP

DWLShear

2.5 Basic Dimensions and Hull Form Characteristics

• LppLpp(length

between perpendicular) : horizontal distancefrom FP and AP

• AmidshipsAmidships : the point midway between FP and AP•• ShearShear : longitudinal curvature given to deck

LOA

Lpp

APFP

DWLShear

Beam: B Camber

Depth: D

Draft: T

FreeboardWL

KCL

View of midship

section

•

Depth(D):Depth(D): vertical distance measured from keel to deck taken at amidships and deck edge in case the ship is cambered on the deck.

• Draft(T)Draft(T) : vertical distance from keel to the water surface• Beam(B)Beam(B) : transverse distance across the each section

Breadth(B)Breadth(B) : transverse distance measured amidships

Beam: B Camber

Depth: D

Draft: T

FreeboardWL

KCL

View of View of midshipmidship

sectionsection

• FreeboardFreeboard : distance from depth to draft (reserve buoyancy)• Keel(K)Keel(K) : locate the bottom of the ship • CambeCamberr

: transverse curvature given to deck

FlareFlare TumblehomeTumblehome

•• FlareFlare : outward curvature of ship’s hull surface above the waterline

• Tumble HomeTumble Home : opposite of flare