General Procedure of Shipbuilding - PowerPoint PPT Presentation

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General Procedure of Shipbuilding

Soo-Kwan Oh

Technical/ Marketing Manager

For the benefit of business and people

SUMMARY

1FROM CONTRACT TO DELIVERY

2 CLASSIFICATION SOCIETY

3 LARGE CONTAINER VESSEL

1

>From Contract to Delivery

1

CONCEPT

From Contract to Delivery

Owner Project

Shipyard

Contract/ Business Dept.

Ship Sales Engineering Dept.

CONTRACT

Basic/ Production

Purchasing of Material Purchasing Dept.

Owner/ Class Approval

DESIGN

Hull

Hull Outfitting

Machinery Outfitting

Electric Outfitting

Painting

Quality Assurance

Production Control

PRODUCTION

DELIVERY

A/S

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

1

INITIAL STAGE

Broker

* Owner

* Shipyard

Owner

Project Planning

Contract/ Business Dept.

Ship Sales Engineering Dept.

Shipyard

Purpose

Route

Economic

OFFER

BRIEF SPEC’

Full Spec’/ Class

Cost Balance

Negotiation

Technical Meeting

Total Quantity

Option

Delivery Date

Letter of Intent

Contract Specification

Contract G/A, Midship, Piping Diagram

Accommodation Plan

CONTRACT

1

INITIAL STAGE

GENERAL ARRANGEMENT

1

INITIAL STAGE

75K MIDSHIP

1

INITIAL STAGE

75K MIDSHIP

1

INITIAL STAGE

DIAGRAM OUTFIT

1

INITIAL STAGE

DIAGRAM OUTFIT

1

INITIAL STAGE

DIAGRAM OUTFIT

1

INITIAL STAGE

DIAGRAM-MACHINERY

1

INITIAL STAGE

DIAGRAM-MACHINERY

1

INITIAL STAGE

DIAGRAM-MACHINERY

1

INITIAL STAGE

ACCOMMODATION PLAN

1

INITIAL STAGE

ACCOMMODATION PLAN

1

INITIAL STAGE

ACCOMMODATION PLAN

1

DESIGN STAGE

Key Design

Production Design

DESIGN STAGE

Lines, Propeller

General Arrangement

Trim & Stability

Loading, etc.

Basic Design

Hull Key Plan : Midship Section

Construction Profile & Deck Plan

Shell Expansion

Structure Drawing : Cargo Hold

Engine Room/ Fore Body/ Aft Body

Stern Frame/ Accommodation

Production Drawing : Shop Drawing/ Cutting Plan

Structural Analysis : Static Analysis –Coarse Mesh/ Fine Mesh

Fatigue Analysis

Sloshing Analysis

Bow Impact & Slamming Analysis

Vibration Analysis

Painting

Purchasing Order : Steel Plate, Angle etc, Paint

Hull Design

1

DESIGN STAGE

Key Design : Piping Diagram, Ventilation

Mooring, Anchoring, Steering

Life Saving, Fire Fighting

Traffic Arrangement

Production Design : Pipe Piece, Traffic Piece, etc

Small Equipment

Accommodation Design : Interior, Piping, Outfitting

Purchasing Order : Pipe, Valve, Equipment

Hull Outfitting Design

Key Design : E/R Piping Diagram,

Machinery Arrangement, M/E,

Generator, Boiler, Compressor

Production Design : Pipe Piece, Vent Piece, etc.

Small Equipment

Purchasing Order : Equipment, Valve, etc.

Machinery Outfitting

1

DESIGN STAGE

Key Design : Automation

Electrical System

Navigation Equipment

Production Design : Cable Piece

Light Equipment

Purchasing Order : Switch Board

Equipment, Cable, Sensor

Electric Outfitting

1

PRODUCTION STAGE

Production Control

Production – Hull, Hull Outfitting,

Machinery Outfitting, Paint

Quality Assurance

Yard Facility

Production Control

Material Control

CONDITION

HULL PRODUCTION

Each Block

Cutting

Sub-Assembly

Assembly

Inspection

Owner/ Class

Block

Painting

P.E

Pre-Outfitting

Dock Erection

Grand P.E

1

PRODUCTION STAGE

OUTFITTING PRODUCTION

Pre-Outfitting

In Block

Outfitting

In Dock

Outfitting

In Quay

PAINTING

Cosmetic

Painting

Dock Painting

Block Painting

1

DELIVERY & A/S

READY TO SEA TRIAL

Official Sea Trial

Shipyard, Owner, Class

Shipyard Ship owner

Speed

Endurance

Tank Test

Anchoring/ Mooring

Rudder, Steering

Vibration, Noise

Equipment Operation

Navigation

Correction

If Any

Delivery

Sign

A/S

Departure

(1 YEAR)

2

>Classification

2

MAJOR WORK

Classification

SHIP’S SAFETY DURING LIFE TIME

Yard Design

Maker Design

DRAWING APPROVAL
INSPECTION DURING BUILDING
CERTIFICATION
INSPECTION AFTER DELIVERY

Intermediate

Periodical

CLASS PROCESS

SHIP NEW CONSTRUCTION :

Design review

Commercial

Follow-up in service

T0

Contract

RFC Signed

T0 + C

Deliveryto Owner

Ad 523 signed byLPO

DTM support

BVN surveyors

Field surveyor

LPO

Marine Center

CLASS PROCESS

Design review : basically 4 BV actors

CLASS PROCESS

Design review

T0

Contract

RFC Signed

T0 + C

Deliveryto Owner

Ad 523 signed byLPO

LPO core activity : Design review
Design review can start before RFC signed ( TAKE CARE - CONTRACT DEFINITION )
Completed when Ad 523 + annexes are examined and signed ( technical green light given to CM for Class certificate )

CLASSPROCESS

Design review

LPO core business : Design review against Referential
Referential : BV Rules / IMO Reg.
LPO Interpretations : - allowed with BV Rules ( within general conditions) - not allowed for IMO Reg.
Rules : technical interpretations / protect interest of Owner ( final CLIENT )
High technical knowledge frequently requested as Clients may be less educated / powerfull than BV
Great risk of uncontrolled move from design review activity to Consultancy activity

T0

Contract

RFC Signed

T0 + C

Deliveryto Owner

Ad 523 signed byLPO

CLASS PROCESS

Follow-up in service

T0 + C

Deliveryto Owner

Ad 523 signed byLPO

Scrap

or

Changeof Class

LPO activity :
Design review at any time in case of conversion
Rules : technical interpretations / protect interest of Owner
Technical support of CMs / Station surveys
Several LPOs may be concerned
Technical documentation processing ( drawings + calculation sheets )

Different from Class design review : BV acts as designer in scope of Consultancy

Technical expertise and knowledge is ( must be ) sold to Client

Highly profitable

HIGH RISK OF : - transfer of Yard know-how - confusion on status of conclusions - pressure from management

ALWAYS BE CLEAR ABOUT THE CAP YOU WEAR / THE FORMAT OF COMMENTS YOU ARE ALLOWED TO GIVE

TECHNICAL ASSISTANCE

2

IACS MEMBERS

Classification

MEMBER
ABS : American Bureau of Shipping
BV : Bureau Veritas
CCS : China Classification Society
DNV : Det Norske Veritas
GL : Germanischer Lloyd
KR : Korean Register of Shipping
LR : Lloyd Register
NK : Nippon Kaiji Kyokai
RINA : Registro Italiano Navale
RS : Russian Maritime Register of Shipping

2

IACS MEMBERS

Classification

ASSOCIATES

IRS : Indian Register of Shipping

REQUIREMENTS

Procedural Requirement
Unified Requirements
Unified Interpretations
Guide Line & Recommendations, etc.

Web Site

www.iacs.org.uk

SUMMARY

1General : Large Container Vessels

2 Bureau Veritas References in Large Container Vessels

BV Hull Expertise

- Steps of review process

- Torsion analysis

- Fatigue analysis

- Bow flare analysis

4 BV Lashing Expertise

BV Shaft Alignment Expertise

Parametric Roll Calculation

1

LARGE CONTAINER VESSELS

GENERAL

The size range for the largest containerships is expected to increase significantly in the near future as economies of scale remains the dominant operational factor driving efficient transport.
The Largest containerships currently in service are in the 7000-8000 TEU range. Many leading shipyard have developed designs for vessels with additional containers rows, tiers and holds. Increase main dimension and capacity up to 9000/10000 TEU.
In the future the carrying capacity of containerships is expected to increase to 12000 TEU and above

1

GENERAL

Fleet development for container ships

1

GENERAL

Order Books for container ships

Challenges with the increase of size of containerships

Torsion/Warping stress

Fatigue

Acceleration forces on lashing

Engine power

Shaft alignment

Parametric roll

Slamming/Bow impact

1

GENERAL

LAST MAIN REFERENCES

HHI

1x5,500 TEU containerships for YANG MING LINE

1x7,800 TEU containership for CMA CGM

10x5,100 TEU containerships for CMA CGM (under building)

2x5,100 TEU containerships for CMA CGM (under building at HSHI)

1x8,200 TEU containership for YANG MING LINE (under building)

DSME

1x6,500 TEU containership for CGM CMA

2

CONTAINER SHIPS BUILDING

BV REFERENCES

LAST MAIN REFERENCES

HHIC

2x1,600 TEU containerships for DELMAS

4x1,600 TEU containerships for VROON

2x4,300 TEU containerships for CMA CGM

3x6,500 TEU containerships for CMA CGM

SHI

8 x 5,770 TEU containerships for CMA CGM

CSBC

18x2,200 TEU containerships for WAN HAI LINES, DELMAS, CMA CGM, YANG MING LINE

IMABARI

3x5,500 TEU containerships for COSCO

2

CONTAINER SHIPS BUILDING

BV REFERENCES

< 9,200 TEU CONTAINERSHIP >

Main Dimensions:

Length btw. PP 333,44 m

Breadth 42,8 m

Depth, to upper deck 27,3 m

Draught, summer 14,5 m

Speed 24,25 kn

Power 68656 kW

Key elements: Between half December and the end of March the complete structure has been reviewed. This was only possible in close cooperation with the Shipyard. Several meetings at the shipyard site, exchanging information and calculation results and discussing the findings, have taken place. Two offices of Bureau Veritas, Korea and Paris, have been working around the clock in order to make the deadlines of the shipyard.

2

PROJECT MANAGEMENT

BV REFERENCES

Hatch coamings /

Superstructures connection

Longitudinal Hatch Coamings

Bow Flare

impact

Bottom

Slamming

Transverse Bulkhead

connections

Cross-deck structures

Hatch corners

3

CRITIAL AREA OF LARGE CONTAINER SHIPS

BV HULL EXPERTISE

3

STEP OF REVIEW PROCESS

BV HULL EXPERTISE

DESIGN REVIEW PROCESS

General and subdivision arrangement
Mid-ship section : Longitudinal strength and local rule scantlings
All sections : Longitudinal strength and local rules scantlings
Torsion model : Warping stress estimation all along the vessel (to be included in the global stress)
Key drawings: primary members calculation (local + global stress)
Detail drawings / reinforcement : bracket reinforcement under stack...
Bow impact and flat forward bottom area
Other calculations: Loading manual strength analysis, Lashing...

IN PARALLEL TO DESIGN REVIEW PROCESS

FEM (VeriSTAR) calculations: double check for design review
Fatigue Analysis with Mars/VeriSTAR

3

TORSION ANALYSIS

BV HULL EXPERTISE

MARS - TORCIS ANALYSIS

TORCIS calculation

2 calculations:

wave 60 degree

wave 120 degree

Modelisation of

all cargo holds

Estimation of shear force

in cross deck beams

Estimation of warping stress

in side shell , upper-deck

all along the vessel N/mm2

3

TORSION ANALYSIS

BV HULL EXPERTISE

MARS - TORCIS ANALYSIS

Buckling due to warping

Fatigue due to warping

(L27) 16 years

(L28) 17 years

(L29) 13 years

(L30) 15 years

(L31) 17 years

3

TORSION ANALYSIS

BV HULL EXPERTISE

Analyses based on complete ship model

VeriSTAR is use for

- Buckling analysis (coarse mesh)

- Yielding analysis (fine mesh)

- Fatigue analysis (very fine mesh)

Full model of 9200 TEU containership

3

TORSION ANALYSIS

BV HULL EXPERTISE

Methodology and steps of a VeriSTAR CSM calculations

σX1 = γs1σs1 + γw1(Cfvσwv1+Cfhσwh1+CfΏσΩ )

Quartering sea: Maximize static , vertical bending (50%), horizontal bending (100%) and torsion (100%)

50% Vertical Bending moment

Maximum Torsion at fore part

6

COMPLETE SHIP MODEL

3D FEM CALCULATIONS VERISTAR

Methodology and steps of a VeriSTAR CSM calculations

Coarse mesh modelling : full ship
Definition of ballast areas and container loading points
Static calculation with lightship weight: loading conditions

lightship (checking case)
ballast (maximum Bending moment)
full load (maximum draft)
compare data with loading manual (draft,displacement,still water bending moment…)