Draw the vessel gz curve of statically stability

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Reference no: EM131248287

Assignment -

Scenario

You have been supervising the new building of a small commercial vessel. Part of your instructions is to assess the vessel's basic stability and hydrostatic information to produce the appropriate part of the statutory stability booklet for the vessel.

1a. Describe in detail (using appropriate diagrams/drawings) a common accepted method (the inclining experiment) you would use to obtain an accurate assessment of the vessel's initial GM.

1b. Using the following information provided below, calculate the following measurements for this vessel?

Mass Displacement.

Waterplane area.

LCF (longitudinal Centre of Floatation).

BM.

TPC (Tonnes per centimetre Immersion)

Initial KG

Initial GM

The vessel is in salt water.

Station

Half area, m2

Water plane half-breadths, meters

0

0.00

0.0

1

3.04

1.7

2

4.90

2.6

3

5.02

3.4

4

4.62

3.4

5

4.21

3.4

6

3.80

3.4

7

3.38

3.4

8

2.93

3.4

9

1.79

2.9

10

0.00

0.0

Waterline length = 50m

Mean draught 1.37m

KB = 0.737m

1c. On the same vessel.

 2 x weights A&B (1.8t each) are placed 2.2m each side of the LCB (v/l in equilibrium)

Weight A is moved to the position of weight B giving a pendulum movement of 75mm.

Pendulum length 3m (mounted at the LCB)

If the weight A is moved back to the original position and a new weight of 10t is loaded amidships with a CG of 3m.

What will be the shift of G and the new KG.?

1d. Explain how a KN (SZ) curve is used to determine the vessel's stability data?

Then using the vessel's calculated displacement from 1b and the KN (SZ) curve provided below for this small commercial work boat. (KS is 3.193m)

Draw the vessel's GZ curve of statically stability and state the maximum GZ value?

706_Figure.png

1e. A different vessel with the following dimensions:-

Waterline length of 100 metres

Displacement of 6300 tonnes.

Mean draught of 6 metres,

Longitudinal metacentre = 104m

Longitudinal Centre of Floatation (LCF) = Amidships

A weight of 60 tonnes is moved from forward to aft over a distance of 50 metres.

Calculate the MCT 1 cm and the new draughts forward and aft for this vessel?

Attachment:- Assignment.rar

Reference no: EM131248287

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Reviews

len1248287

10/19/2016 5:05:49 AM

No footnotes no copy paste and i want 15 pages. i don't want anyone have seem assignment as mine please. The use of photographs and clearly annotated drawings may be highly beneficial in answering parts of this assignment. When taking photographs be sure to include something which provides an indication of scale. For close-up pictures include a metric ruler. Your assignment must be supported by details of your research work in appendices. References must be placed in a bibliography using the Harvard style of referencing. Each new task should be started on a new sheet (page break) or separated by a horizontal line. Remember that the work presented should demonstrate knowledge and understanding, not your ability to copy material from other sources.

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