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Nov 25, 2013 (3 years and 8 months ago)

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NAME 338

SHIP DESIGN PROJECT & PRESENTATION
-
3

DATE
-
18 ,April,2011



Project Supervisor

Khabirul

Haque

Chowdhury

Professor

Department of Naval Architecture & Marine
Engineering,BUET


Presented By
-

Hasib
-
Ul
-
Haque

(0712014)

Ahmad
Shibli

Saleheen

(0712018)


To use the circular water ways around
Dhaka city


To ease the water way communication
with comfortable service


To reduce the pressure on land transport.


To safe people from horrible traffic jam.


LENGTH:



OVERALL : 24.90 meter



Load water line : 24.122 meter


L.B.P : 22.95 meter

BREADTH
:


MAXIMUM : 6.5 meter


MOULDED : 6.3 meter

DEPTH(MLD)

: 2.0 meter

DRAFT(MLD)

: 1.1 meter




1
.
Rudder

design
.


2
.
Engine

selection

and

foundation
.


3
.
GA

and

Lines

plan

update


4
.
Weight

calculation

update


5
.
Hydrostatic

calculation

update


6
.

Trim

and

Stability

update



PROPERTY


Dimension


Rudder area


0.44
m
2


Aspect ratio


1.5


Torque


10763.850N


Rudder stock dia.


54.67
mm


Coupling
bolt dia


5.47
mm


No. of bolt


06


rudder plate thickness


16
mm


R
T
= R
F
(1+K
1
) + R
APP

+ R
W

+ R
B

+ R
TR

+
R
A



Where,


R
F

= Frictional
resistance according
to ITTC 1957 friction
formula


(1+K
1
) = Form factor describing the viscous resistance of the
hull form in relation to R
F


R
APP

= Appendage resistance


R
W

= Wave making and wave breaking resistance


R
B
= Additional pressure resistance due to bulbous bow near
the water surface


R
TR

= Additional pressure resistance of immersed transom
stern


R
A

= Model ship correlation resistance





For
our ship we get,


R
F

= 4.6430 KN

(1+K
1
) =
1.22

R
APP

= 0.1417 KN

R
W

= 9.0478 KN

R
B
= 0

R
TR

= 0

R
A

= 1.7609 KN

So, R
T

= 16.6149
KN


Effective
power,P
E

= R
T

×

V



=
16.6149
×

12
×
0.5149


=
102.65 KW = 137.68 HP




Shaft
Power,P
s
=
P
E
/[
η
R

η
0
η
s
(1
-
t)/(1
-
w)] = 188.19 HP


Delivered
Power,P
D
=
η
s
×

P
s
= 0.99
×

188.19
=
186.31 HP


Break horse power =
P
S
/
η
G

=
194.01 HP

Where,

η
G

= gear efficiency = 97%






Yanmar type 4JH4
-
HTE


Steyr Motor Engines
-
M0114K33



The Yanmar type 4JH4
-
HTE Engine is designed for high
performance.


The innovative fuel injection technology enables an excellent torque
and speed range.


Service Life
-
this engine is manufactured using high alloy materials
to provide enduring longevity for all running components.


Comfort
-
The patented 2
-
stage UNIT Injector fuel injection
technology provides for a worldwide approped and smooth operation
noise


Exhaust Emissions
-
The trend
-
setting UNIT INJECTOR system
enables us already today to conform with the valid emission
regulations.


Transmission
-
this engine allow the installation with different
driving system in our boat.

Yanmar type 4JH4
-
HTE


Steyr Motor Engines
-
M0114K33

Yanmar type 4JH4
-
HTE

Steyr Motor Engines
-
M0114K33

Yanmar type 4JH4
-
HTE

Steyr Motor Engines
-
M0114K33

Aft view

Right View

Floor Plate Thickness

6mm

Inner Bottom Plating

9mm

Longitudinal Girders

10mm

Foundation Bolts(Dia)

15mm

Face Plate

40mm

Web Frame

T
-
section
-
128
×
50
×
5mm


ITEM


NO
.


SPECIFICATION


ENGINE


02


Yanmar type 4JH4
-
HTE



GEAR BOX


02


ZF 25

STEERING GEAR

01

GROVEREADY LIMITED

MODEL: WR KS 650 C

DIESEL GENERATOR

02

KohlerPower
-
20EFOZD, 1
-
Phase


FIRE& BILGE &GENERAL
SERVICE PUMP

01

BOMBUS ITUR

MODEL:ILC
-
40/160

FUEL OIL TRANSFER PUMP

01

BOMBUS ITUR

MODEL:RCV1

PORTABLE DIESEL PUMP

01

BOMBUS ITUR

MODEL:AU
-
50/25

FRESH WATER PUMP

01

BOMBUS ITUR

MONOBLOCK PUMP EZ
-
4/2


PROPERTY


PREVIOUS


UPDATE


Max. Draught

1.5

1.1


LBP/B
(mld)

3.86

3.64


B
(mld)
/
h

4.2

5.73


D/h

1.73

1.82


C
b

0.54

0.47


D.W.T

44.96

17.48


L.W.T

72.55 tons

57.4 tons


DISP.

117.51 tons

74.88 tons



1.Canteen facility has been cancelled

2.Number of Bulkhead is reduced

4.Seating arrangement has been renovated and
updated

5.Change in
Cabin
type,size
and position

GA
-
Updated

GA
-
Previous

Comparison between GA plans

No of person on board:

No of passenger = 100

No of crew = 6

Total = 106


Weight allowance per person:

Weight per person = 75 kg

Luggage per person = 5 kg

Total = 80 kg


Total weight for persons = 80
×

106


= 8.48 tons


Fuel tank

Fresh water tank

Station spacing = 1.8 m


Station spacing = 1.575 m


Volume of tank= 0.83 m
3



Volume of tank= 2.857 m
3



Weight of disel oil= 0.75 tons


Weight of fresh water= 1.5 tons


TYPE


DEADWEIGHT (tons)

Persons

8.48

Fuel oil

1.5

Lube oil

0.5

Fresh water

3

Storage

2

Allowance

2

Total deadweight

17.48

MEMBER

AREA

(m²)

THICKNESS
(m)

WEIGHT (tons)

Shell plate

45.28

6

3.24

Bilge Plate

29.41

7

2.6

Keel Plate

12.72

7

1.17

Bottom plate

22.54

7

2.46

Total

=9.47

ITEM

WEIGHT (tons)

Centre keelson

0.94

Side keelson

2.37

Floor plate

4.24

Main frame

6.24

Web frame

5.38

Side stringer

1.54

Deck girder

0.814



Deck web

3.69



Deck beam

1.97

Deck plate

1.34

Roof girder

1.22



Roof beam

0.86

Bracket

0.6

Bulkhead
1(st
.5)

0.19

Bulkhead 2(st 2)

0.25

Bulkhead 3(st 4)

0.32

Bulkhead 4(st 5)

0.33

Bulkhead 5(st 7)

0.25

Bulkhead 6(st 8.5)

0.18

Gear box

0.8

Propeller

0.55

Propeller shaft

0.6

Rudder

0.4

Winch

0.5

Anchor

1

Pump

0.12

Main engine

0.434

Seating arrangement

4

Wood and outfit

2

Glass of window

2

Generator

0.726

Miscellaneous

2

Total

47.93

1.DAMAGE
CONTROL
EQUIPMENT

2.FIRE FIGHTING
EQUIPMENT

3.PANEL(PLASTIC
SHEET)

4. REFRIGERATOR

5.AIR
CONDITIONER

6.RECREATIONAL
FAILITY
(T.V,VCD/DVD
PLAYER)

7.DIESEL ENGINE
EQUIPMENTS


8.BEDDING ITEMS

9.GENERAL TOOLS


10.ACCESSORIES
(DECK)

11.ENGINE ROOM
OUTFIT

So,the total lightweight of the vessel is = (9.47+47.93) tons


= 57.4 tons



Therefore,

the displacement of the vessel=
Lightweight+Deadweight


= 57.4 + 17.48


= 74.88 tons

Which was previously 123.48 tons

OFFSET TABLE

Half Breadth Plan

Height Above Base Line

Station

Wl
-
1

Wl
-
2

Wl
-
3

Wl
-
4

Deck

Keel

Btk
-
A

Btk
-
B

Deck

0

-

-

-

-

3150.0

1100.0

1122.0

1221.0

2336.7

0.5

-

-

-

1980.0

3150.0

0891.0

0867.6

1058.1

2302.1

1

-

-

1688.4

2419.2

3150.0

0689.9

0730.7

0936.2

2273.9

1.5

-

0921.6

2313.0

2611.8

3150.0

0501.3

0553.9

0706.0

2245.6

2

-

2115.0

2554.2

2759.4

3150.0

0106.9

0239.1

0538.1

2223.6

3

2032.2

2622.6

2835.0

2953.8

3150.0

0

0088.1

0290.6

2200.0

4

2478.6

2833.2

3025.8

3099.6

3150.0

0

0078.6

0155.6

2200.0

5

2525.4

2953.8

3112.2

3150.0

3150.0

0

0078.6

0155.6

2200.0

6

1452.6

2545.2

2876.4

3056.4

3150.0

0

0210.2

0377.2

2200.0

7

0750.6

1760.4

2377.8

2734.2

3146.4

0

0356.1

0675.9

2200.0

8

0414.0

0937.8

1510.2

2012.4

3052.8

0

0600.9

1.1497

2228.3

8.5

0279.0

0617.4

1013.4

1432.8

2928.6

0

0845.4

1.5053

2251.9

9

0154.8

0347.4

0599.4

0889.2

2669.4

0

1.2233

1.7790

2280.1

9.5

0048.6

0140.4

0248.4

0428.4

2253.6

0110.0

1580.3

1954.6

2313.1

10

-

-

-

0036.0

1690.2

0986.9

1850.1

2081.3

2352.4

Draft

(m)

Displacement

(tons)

L.C.B.

(m)

V.C.B.

(m)

T.P.C.

(
tonnes
)

BM
T

(m)

BM
L

(m)

MCT
1m

L.C.F.
from
midship

(m)

1.1

74.68

0.72 A

0.69

1.0871

4.39

43.38

141.16

1.08 A

0.825

46.92

0.61 A

0.52

0.9778

5.20

46.67

100.94

0.75 A

0.550

23.91

0.57 A

0.35

0.7404

6.60

56.60

67.97

0.58 A

0.275

6.87

0.55 A

0.18

0.4671

10.31

79.12

28.52

0.56 A

WL NO.

C
B

C
M

C
P

C
W

4

0.47

0.84

0.56

0.75

3

0.42

0.79

0.53

0.69

2

0.37

0.74

0.50

0.63

1

0.25

0.57

0.44

0.47

Updated

Previous

0
0.2
0.4
0.6
0.8
1
1.2
0
0.5
1
Draft (m)

Longitudinal centre of
buoyancy (m)

Longitudin
al centre of
buoyancy
Updated

Previous

0
0.2
0.4
0.6
0.8
1
1.2
0
50
100
Draft (m)

Longitudinal metacentre
(m)

Longitudin
al
metacentre
Updated

Previous

0
0.2
0.4
0.6
0.8
1
1.2
0
10
20
Draft (m)

Transverse metacentre (m)

Transvers
e
metacentr
e
Updated

Previous

0
0.2
0.4
0.6
0.8
1
1.2
0
50
100
Draft (m)

Displacement (m³)

Displaceme
nt
Updated

Previous

0
0.2
0.4
0.6
0.8
1
1.2
0
0.5
1
Draft (m)

Water plane coefficient

Water
plane
coefficient
Updated

Previous

0
0.2
0.4
0.6
0.8
1
1.2
0
0.5
1
Draft (m)

Prismatic coefficient

Prismatic
coefficien
t
Updated

Previous

0
0.2
0.4
0.6
0.8
1
1.2
0
0.5
1
Draft (m)

Vertical centre of buoyancy
(m)

Vertical centre of
buoyancy

Vertical
centre of
buoyanc
y
Updated

Previous

0
0.2
0.4
0.6
0.8
1
1.2
0
0.5
Draft (m)

Block coefficient

Block
coefficient
Updated

Previous

0
0.2
0.4
0.6
0.8
1
1.2
0
0.5
1
Draft (m)

Midship section coefficient

Midship
section
coefficie
nt
0
0.2
0.4
0.6
0.8
1
1.2
0
1
2
Draft(m)

Longitudinal centre of
flotation(m)

Longitudi
nal
centre of
flotation
Updated

Previous

Previous

0
0.2
0.4
0.6
0.8
1
1.2
0
50
100
150
Draft(m)

MCT 1m

MCT 1m
Updated

ANGLE

OF
INCLINATION(degree)

RIGHTING LEVER,GZ

(m)

0

0

15

1.609

30

2.791

45

2.598

60

2.168

75

0.289

90

-
0.012


Immerged

Side

Section

Ordinate

Multipliers

Functions of
Ordinate

Square of
ordinates

Functions of
Squares

Cubes of
Ordinates

Functions of
cubes

0

2.1

0.5

1.05

4.410

2.205

9.261

4.631

0.5

2.1

2

4.2

4.410

8.820

9.261

18.522

1

2.1

1

2.1

4.410

4.410

9.261

9.261

1.5

2.1

2

4.2

4.410

8.820

9.261

18.522

2

2.1

1.5

3.15

4.410

6.615

9.261

13.892

3

2.1

4

8.4

4.410

17.640

9.261

37.044

4

2.1

2

4.2

4.410

8.820

9.261

18.522

5

2.1

4

8.4

4.410

17.640

9.261

37.044

6

2.15

2

4.3

4.623

9.245

9.938

19.877

7

2.15

4

8.6

4.623

18.490

9.938

39.754

8

2.15

1.5

3.225

4.623

6.934

9.938

14.908

8.5

2.15

2

4.3

4.623

9.245

9.938

19.877

9

2.15

1

2.15

4.623

4.623

9.938

9.938

9.5

2.15

2

4.3

4.623

9.245

9.938

19.877

10

0.049

0.5

0.0245

0.002

0.001

0.000

5.88E
-
05

62.5995

132.753

281.667

Emmersed

Side

Section

Ordinate

Multipliers

Functions of
Ordinate

Square of
ordinates

Functions of
Squares

Cubes of
Ordinates

Functions of
cube
s

0

0

0.5

0

0

0

0

0

0.5

0.454

2

0.908

0.206

0.412

0.094

0.1872

1

0.787

1

0.787

0.619

0.619

0.487

0.487

1.5

1.098

2

2.196

1.206

2.412

1.324

2.648

2

1.587

1.5

2.380

2.518

3.777

3.995

5.993

3

1.850

4

7.401

3.424

13.694

6.335

25.339

4

1.982

2

3.964

3.928

7.857

7.786

15.572

5

1.980

4

7.920

3.920

15.680

7.761

31.045

6

1.655

2

3.311

2.740

5.481

4.536

9.073

7

1.402

4

5.608

1.965

7.861

2.755

11.021

8

1.092

1.5

1.638

1.193

1.789

1.303

1.954

8.5

0.886

2

1.771

0.784

1.568

0.694

1.389

9

0.641

1

0.641

0.410

0.410

0.263

0.263

9.5

0.350

2

0.700

0.123

0.245

0.043

0.085

10

0.037

0.5

0.0184

0.001

0.001

4.94E
-
05

2.47E
-
05

39.243

61.807

105.057

281.667



386.723

Inclinations of radial planes

Functions of squares of
ordinates(Immersed Side)

Functions of squares of
ordinates(Emmersed Side)

Multipliers

Functions of squares of
ordinates for volumes of
wedges(Immersed Side)

Functions of squares of
ordinates for volumes of
wedges(Emmersed Side)

Sums of functions of cubes of
ordinates for both side

Products of sums of functions of
cubes for both sides

Cosines of inclinations of radial
planes (cos(15
-
0 to 15))

Functions of cubes for moments
of wedges

0

192.4879

192.4879

1

192.4879

192.4879

1084.669

1084.669

0.866

939.351

15

271.2921

123.5844

4

1085.168

494.3376

1156.623

4626.492

0.966

4468.848

30

132.7525

61.80686

1

132.7525

61.80686

386.7233

386.7233

1.000

386.723

1410.409

748.6324

5794.922

V.C.G from keel= 1
.31

m

KB = 0.69 m


AREA AND POSITION OF C.G. OF RADIAL PLANE

Function

of

area

Function

of

moment


Immersed

62.5995

132.7525

Emerged

39.24295

61.80686

Summation and diff

101.8425

70.9456

Area(1/3*2.43*127.015*2)

164.9848

CG of radial plane immersed
side

0.348311

Thicknes of the
layer(Volume/Area)

0.267643

Volume of Immersed
wedge

= 1410.409

Emerged wedge

= 748.6324

Difference

= 661.7763

Volume
of the
Layer =(
1/2*(
1/3*2.295)*(
1/3*.2616
)*661.776)*2

=

44.15702

Uncorrected moment
=(
1/3*(
1/3*2.295)*(
1/3*.2616
)*5794.922)*2

=257.7775

Correction for layer (CG*volume)

=

15.38036

= 242.3971

Difference

Volume of Displacement in
m
3



= 74.68

BR
=(moment difference/displacement in
m
3
)

= 3.1008

BG=(KG
-
KB)


=0.62

BGsin

30
°



=0.31



= 2.7908

GZ=BR
-
BGsin

30
°


-0.5
0
0.5
1
1.5
2
2.5
3
3.5
0
20
40
60
80
100
GZ (m)

Angle of inclination


LCB At LWL = 0.72 m aft of
amidship


LCG of total ship = 0.93 m aft of
amidship


Displacement of the Ship = 74.68
tonne

At LWL,



MCT1m = 141.16
tonne
-
m



C.F. = 1.08 m aft of
amidship



Draft = 1.1 m

[The value of LCB,MCT1m,C.F. are taken from the
Hydrostatic Calculations earlier in the design
procedure]


Now,

Amount of Trim={(0.93
-
0.72)*74.68}/141.16


= 0.1111 m by stern

So,

Change in Trim aft= 0.05 m

Change in Trim Forward= 0.061 m


Therefore, resulting



Draft Forward= 1.1
-
0.061 = 1.039 m


Draft Aft= 1.1+0.05 = 1.15 m