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A.A. B. Dinariyana; Soemartojo W.A. 19 March 2010

Jurusan Te ni Sistem Per apa anFakultasTeknologi Kelautan ITS SurabayaTA 2009 2010

The scantlings of floors are to be determined according to A.1.2.1 for the reatest s an measured in the en ine room.

Scantling of floor lates

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3

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w w y

engine foundation

should

be

as

large

as

possible

The depth of plate floors connected to web frames shall be similar to the depth of the longitudinal foundation girders.

w y , less than 0,5 h.

The web thickness is not to be less than:

5

The thickness of the longitudinal foundation girders is to be determined according to 3.2.1.The thickness of the longitudinal girders above theinner bottom is not to be less than:

P = sin le en ine out ut in kW

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No centre girder need be fitted in way of longitudinal foundation irders. Intercostal dockin rofiles are to be fitted instead. The sectional area of the docking profiles is not to be less than :

Docking profiles are not required where a bar keel is fitted. Brackets connecting the plate floors to the bar ee are to e itte on eit er si e o t e oors.

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Double Bottom General (Section 8, C.2.1)

g en ng o es n way o eng ne oun a on are o be kept as small as possible with due regard, however, to accessibilit .

Where necessary, the edges of lightening holes are to

panels are to be stiffened.

Local strengthenings are

to

be

provided

beside

the

following minimum requirements, according to the

.

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Plate floors are to be fitted at every frame.The floor thickness is to be increased by:

Minimum 5 percent, maximum 15 percentP = single engine output in [kW]

The thickness of the late floors below web frames is to be increased in addition to the above provisions. In this case the thickness of the plate floors is not to be taken less than

9

the web thickness according to Section 9, A.6.2.1.

Double bottom Side girders/Longitudinal girders

The thickness of side girders under an engine foundation top plate inserted into the inner bottom

the inner bottom.

10

P = single engine output in [kW]

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Side girders

Side girders with thickness of longitudinal

girders in full height of the double bottom.

Where two side girders are fitted on either ,

girder under the inner bottom for engines up .

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Side girders

Side girders under foundation girders are to be extended into adjacent spaces and to be connec e o e o om s ruc ure.

room bulkheads shall be two or four frame spacing if practicable.

No center girder is required in way of the engine .

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, plating required according to B.4.1. to be increased by 2 mm.

The stren thened late is to be extended be ond the en ine seating by three to five frame spacing.

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General The following rules apply to low speed engines. Seating for medium and high speed

engines as well as for turbines will be specially considered.

The rigidity of the engine seating and the

to keep the deformations of the system due to the loads within the permissible limits.

In special cases, proof of deformations and .

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at the seating shall be spaced no more than 3

the longitudinal foundation girder.

Where the distance of the foundation bolts

greater, proof of equivalence is to be .

15

Engine seating

bottom is not less than:

P = single engine output in [kW]

the engine, their thickness may be reduced by 4 mm.

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Engine seating Top plate

The sizes of the top plate (width and thickness) shall be sufficient to attain efficient attachment

:Seating height and type of engine

.

The thickness of the to late shall approximately be equal to the diameter of the fitted in bolts.

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Engine seating Top plate

than:

Where twin engines are fitted, a continuous top plate is to

propeller shaft.18

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Engine seating Top plate

op p ates are pre era y to e connecte to longitudinal and transverse girder thicker than a roximate 1 mm b means of double bevel butt joint.

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Ship Construction

Sketches

and

Notes , ,

1984Peraturan Biro Klasi ikasi Indonesia Volume II, Edition 2006

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