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General Procedure of Shipbuilding. Soo-Kwan Oh Technical/ Marketing Manager. For the benefit of business and people. SUMMARY. 1 FROM CONTRACT TO DELIVERY 2 CLASSIFICATION SOCIETY 3 LARGE CONTAINER VESSEL. 1. > From Contract to Delivery. 1. CONCEPT. From Contra ct to Delivery.

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slide1

General Procedure of Shipbuilding

Soo-Kwan Oh

Technical/ Marketing Manager

For the benefit of business and people

summary

SUMMARY

1FROM CONTRACT TO DELIVERY

2 CLASSIFICATION SOCIETY

3 LARGE CONTAINER VESSEL

slide3

1

>From Contract to Delivery

concept

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

initial stage

1

INITIAL STAGE

From Contract to Delivery

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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

initial stage6

1

INITIAL STAGE

From Contract to Delivery

  • GENERAL ARRANGEMENT

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

initial stage7

1

INITIAL STAGE

From Contract to Delivery

  • 75K MIDSHIP

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

initial stage8

1

INITIAL STAGE

From Contract to Delivery

  • 75K MIDSHIP

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

initial stage9

1

INITIAL STAGE

From Contract to Delivery

  • DIAGRAM OUTFIT

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

initial stage10

1

INITIAL STAGE

From Contract to Delivery

  • DIAGRAM OUTFIT

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

initial stage11

1

INITIAL STAGE

From Contract to Delivery

  • DIAGRAM OUTFIT

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

initial stage12

1

INITIAL STAGE

From Contract to Delivery

  • DIAGRAM-MACHINERY

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

initial stage13

1

INITIAL STAGE

From Contract to Delivery

  • DIAGRAM-MACHINERY

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

initial stage14

1

INITIAL STAGE

From Contract to Delivery

  • DIAGRAM-MACHINERY

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

initial stage15

1

INITIAL STAGE

From Contract to Delivery

  • ACCOMMODATION PLAN

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

initial stage16

1

INITIAL STAGE

From Contract to Delivery

  • ACCOMMODATION PLAN

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

initial stage17

1

INITIAL STAGE

From Contract to Delivery

  • ACCOMMODATION PLAN

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

design stage

1

DESIGN STAGE

From Contract to Delivery

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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

design stage19

1

DESIGN STAGE

From Contract to Delivery

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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

design stage20

1

DESIGN STAGE

From Contract to Delivery

Key Design : Automation

Electrical System

Navigation Equipment

Production Design : Cable Piece

Light Equipment

Purchasing Order : Switch Board

Equipment, Cable, Sensor

Electric Outfitting

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

production stage

1

PRODUCTION STAGE

From Contract to Delivery

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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

production stage22

1

PRODUCTION STAGE

From Contract to Delivery

OUTFITTING PRODUCTION

Pre-Outfitting

In Block

Outfitting

In Dock

Outfitting

In Quay

PAINTING

Cosmetic

Painting

Dock Painting

Block Painting

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

delivery a s

1

DELIVERY & A/S

From Contract to Delivery

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)

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide24

2

>Classification

major work

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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide26

CLASS PROCESS

SHIP NEW CONSTRUCTION :

Design review

Commercial

Follow-up in service

T0

Contract

RFC Signed

T0 + C

Deliveryto Owner

Ad 523 signed byLPO

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide27

DTM support

BVN surveyors

Field surveyor

LPO

Marine Center

CLASS PROCESS

Design review : basically 4 BV actors

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide28

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 )

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide29

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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide30

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 )

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

technical assistance
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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

iacs members

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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

iacs members33

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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide34

3

>Large Container Vessel

summary35

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

large container vessels

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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

large container vessels37

1

LARGE CONTAINER VESSELS

GENERAL

  • Fleet development for container ships

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

large container vessels38

1

LARGE CONTAINER VESSELS

GENERAL

  • Order Books for container ships

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

large container vessels39
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

LARGE CONTAINER VESSELS

GENERAL

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

container ships building
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)

2x9,200 TEU containerships for CMA CGM (under building)

2x9,200 TEU containerships for CMA CGM (under building at HSHI)

2x8,200 TEU containerships for CMA CGM (under building)

2x8,200 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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

container ships building41
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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

project management
< 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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide43

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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide44

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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide45

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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide46

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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide47

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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide48

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

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide49

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…)
    • Wave Load calculations: load cases
      • based on selection of design waves (table 5)
      • Head Sea (longitudinal strength)
      • Beam Sea (transverse strength)
      • Quartering sea (torsion strength)
    • Fine mesh analyses
      • based on areas to be analysed (Table 1)
      • Hatch corners, cross deck, connection superstructure,connection girders...

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide50

3

COMPLETE SHIP MODEL

BV HULL EXPERTISE

  • Principle Design wave load (see also Table 5)
    • Maximum Vertical Wave Bending Moment in Hogging condition
    • Maximum Wave Torque at vicinity of 0.25L (aft part)
    • Maximum Wave Torque at mid-ship
    • Maximum Wave Torque at vicinity of 0.75L (fore part)
    • Maximum vertical acceleration in inclined conditions
    • Maximum vertical acceleration in upright conditions
    • Maximum transverse acceleration
  • Wave design load to be associate with loading conditions
    • Ballast, full load
    • Load cases

Sea keeping calculation

Iterative process

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide51

3

TORSION ANALYSIS

BV HULL EXPERTISE

  • Stresses and Deformation

Stress in Hatch coaming

Connection superstructure

Stress Cross deck

Stress Hatch corners

Stress Girders

Buckling in bottom area

Buckling in bulkhead and bilge area

Head Sea Condition

Quartering sea condition

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide52

3

TORSION ANALYSIS

BV HULL EXPERTISE

  • Areas to be analysed through fine Mesh models

Examples:

- Hatch Corners

- Connection of hatch coaming

with superstructure

- Transverse Bulkhead

- Support Bulkhead

- Transverse Frame

- Bottom Girders

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide53

3

TORSION ANALYSIS

BV HULL EXPERTISE

HATCH CORNERS

Typical stress range in head sea

Typical stress range in oblique sea

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide54

3

TORSION ANALYSIS

BV HULL EXPERTISE

  • Support Bulkhead

Maximum pressure

in alternate condition

one bay empty

Shear stress

at maximum draft

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide55

3

TORSION ANALYSIS

BV HULL EXPERTISE

  • Connection with superstructure

Stress concentrations

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide56

3

FATIGUE ANALYSIS

BV HULL EXPERTISE

  • Steps for Fatigue calculation of side shell longitudinals:
    • 1st step : 2D Fatigue Analysis
    • 2nd Step: 3D Fatigue Analysis
  • Fatigue calculations for Hatch corners
    • One Step: 3D Fatigue Analysis

Cracks in side shell longitudinal due to fatigue

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide57

3

FATIGUE ANALYSIS

BV HULL EXPERTISE

  • Side Shell longitudinals

To compare with Mars results

Fatigue

Hot spot 1

Damage Fatigue

Life calculation

to be over 20 years

Fatigue

Hot spot 2

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide58

3

FATIGUE ANALYSIS

BV HULL EXPERTISE

  • Hatch Corners

In order to increase fatigue life,

compromise between:

- sufficient reinforcement

- smooth grinding

Especially fore part area due to high

torsional loads

Hot spot edge of the corner

Hatch corner in the midship and fore part

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide59

3

FATIGUE ANALYSIS

BV HULL EXPERTISE

  • Hatch Corners

In order to increase fatigue life,

compromise between:

- sufficient reinforcement

- smooth grinding

Smooth Grinding improves

the fatigue life by 2

Hot spot edge of the corner

Hatch corner in the aft part at ER

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide60

3

SLAMMING/ BOW IMPACT

BV HULL EXPERTISE

  • Slamming

Maximum impact in forward area:

- Buckling in transverse frames

- Buckling on side shell plate and stiffeners

- Detail connections in forward area

VeriSTAR calculations with maximum vertical

acceleration and in sagging condition.

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide61

3

SLAMMING/ BOW IMPACT

BV HULL EXPERTISE

  • Buckling in transverse frame at fore part

GENERAL PROCEDURE OF SHIPBUILDING - DD/MM/YY

slide62

END

Thank You

for

Your Attention !