Thesis Defence DASARAPALLI HARSHAVARDHAN REDDY

EMSHIP 4 TH COHORT (2013-2015)

DATE OF PRESENTATION-2ND OF FEBRUARY 2015.

Thesis Information

Title of the thesis

Interaction of design-production stages in hull and piping shipbuilding works.

FOCUS AREAS OF WORK- SHIP PRODUCTION,ECONOMICAL ANALYSIS AND DESIGN ATTRIBUTES .

Supervisor: Prof.Ionas Ovidiu, "Dunarea de Jos" University of Galati.

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CONTENT OF THE THESIS1.INTRODUCTION

2.SOFTWARE DESCRIPTION

3.DETAILED DESIGN AND PRODUCTION INFORMATION STAGES OF HULL AND PIPING WORKS

4.SHIP PRODUCTION AT THE SHIPYARD

5.ECONOMIC ANALYSIS

6.CONCLUSIONS

7.QUESTIONAIRE SESSION

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INTRODUCTIONTHE STAGE AT WHICH THE THESIS IS CARRIED OUT

Requirements

Conceptual designBasic design

Detailed designProduction

InformationShipyard

Ship

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INTRODUCTIONCRITICAL AREAS WHERE THE THESIS IS CARRIED OUT

HULL PIPING

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SOFTWARE DESCRIPTIONSOFTWARES USED IN THE THESIS DEVELOPMENT

NUPAS-CADMATIC

AUTONESTING

AUTOCAD

POSSIBLE OPTIONS OF USING OTHER SOFTWARES FOR MODELLING

AVEVA MARINE

NESTIX

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SOFTWARE DESCRIPTIONNUPAS CADMATIC SOFTWARE

A BLEND OF TWO MODULES WHERE NUPAS IS USED FOR HULL DESIGN AND CADMATIC IS USED FOR PIPING DESIGN.

AUTOCAD

A COMMONLY USED DRAFTING SOFTWARE FOR CREATION OF DRAWINGS AND PROVIDING ANY ADDITIONAL INFORMATION

AUTONESTING

A SPECIAL NESTING SOFTWARE USED FOR THE NESTING OPERATIONS OF THE PLATES

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DETAILED DESIGN AND PRODUCTION INFORMATION STAGES

STAGE 1

• CREATION OF THE 3D MODEL

•AT THE DESIGN OFFICE

STAGE 2

• EXTRACTION OF INFORMATION MADE FROM 3D MODEL

•AT THE DESIGN OFFICE

STAGE 3

• PRODUCTION USING THE INFORMATION

•AT THE SHIPYARDS

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DETAILED DESIGN AND PRODUCTION INFORMATION STAGES

PIPING PART OF THE PACKAGE

DETAILLED DESIGN STAGE

ASSEMBLY DRAWINGS

PRODUCTION INFORMATION STAGE

PIPE ISOMETRICS

PIPE SCHEMATICS

SPOOL DRAWINGS

BILL OF MATERIALS

ISO SKETCHLIST

DESCRIPTION OF MATERIALS FOR A SECTION

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DETAILED DESIGN AND PRODUCTION INFORMATION STAGES

HULL PART OF THE PACKAGE

DETAILLED DESIGN STAGE

ASSEMBLY DRAWINGS

PRODUCTION INFORMATION STAGE

LIST OF MATERIALS

PART SKETCHES

PROFILE SKETCHES AND PANEL SKETCHES

ASSEMBLY SKETCHES

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DETAILED DESIGN AND PRODUCTION INFORMATION STAGES

ADDITIONAL INFORMATION FOR THE ACTIVITIES

NESTING OPERATIONS

BENDING OF PLATES FOR THE HULL

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SHIP PRODUCTION AT THE SHIPYARD

2D DRAWINGS AND 3D MODEL ARE

SENT TO THE SHIPYARD

VALIDATION AND COMMENTS TO THE

DESIGN OFFICES FROM THE YARD

INTIALISTING THE WORK FOR

PRODUCTION AT THE YARD

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SHIP PRODUCTION AT THE SHIPYARD

TECHNICAL DOCUMENTS

JOB PREPARATION DEPARTMENT

PRODUCTION DEPARTMENT

OTHER DEPARTMENTS

COMBINEDSUPPORT AREA

QUALITY CONTROL DEPARTMENT

QUALITY ASSURANCE

DURING PRODUCTION

PRODUCTION OF THE SHIP

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SHIP PRODUCTION AT THE SHIPYARD

BLOCK BASED BUILDING IN THE SHIPYARD (SOURCED FROM DAMEN SHIPYARDS,GALATI)

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ECONOMIC ANALYSISTHIS ECONOMIC ANALYSIS WOULD VARY OVER A PERIOD OF TIME BY THE MAN HOUR CONSUMPTION WOULD BE CLOSE TO THE NUMBER OBTAINED

HULL PART

PIPING PART

NESTING PART

BENDING OF PLATES

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ECONOMIC ANALYSIS

60

231

60

181

0 50 100 150 200 250

MAN HOUR CONSUMPTION

TYP

E

Man hour consumption

Piping at Shipyard Piping at Design office Hull at Shipyard Hull at design office

MAN HOUR CONSUMPTION AT THE HULL AND PIPING AREAS AT THE YARD AND DESIGN OFFICECOST PER MAN HOUR AT THE DESIGN OFFICE AND SHIP YARD IS 45 AND 30 EUROS PER MAN HOUR RESPECTIVELY.

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ECONOMIC ANALYSIS

TOTAL COST INCLUDES MATERIAL COST AND DESIGN COST

DESIGN COST PER MAN HOUR- 45 EUROS/HR

MATERIAL COST PER TONNE- 1000 EUROS

ANALYSIS FOR A BLOCK OF 40 TONNES AND FOR ONE BLOCK

CASE 1 – MANUAL AUTOMATED NESTINGCASE 2 - QUICK AUTOMATED NESTINGCASE 3 - AUTOMATED NESTING

48.18

54

48.84

40

42

44

46

48

50

52

54

56

1 2 3

TOTA

L C

OST

IN T

ERM

S O

F EU

RO

S *1

00

0

TYPES OF NESTING

NESTING CASES

NESTING SCNARIOS

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ECONOMIC ANALYSIS

472.5

3800

0

500

1000

1500

2000

2500

3000

3500

4000

CO

ST IN

TER

MS

OF

EUR

OS

TYPE

Cost factors at the bending of plates

At design office At shipyard

AVERAGE NUMBER OF PLATES PER SECTION-7NUMBER OF SECTIONS CARRIED OUT-1COST OF MATERIAL-1000 EUROS/TONCOST OF MAN HOUR AT DESIGN OFFICE-45 EUROS/MAN HOURCOST OF MAN HOUR AT SHIPYARD -12 EUROS/MAN HOUR

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ECONOMIC ANALYSISFinal Analysis

Per section

Total savings -16312 Euros

If a ship has 20 sections

Total savings -326249 Euros

6930

5430

624.95

3327.5

Cost savings for a ship section

Hull Piping Nesting Bending

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CONCLUSIONS SPENDING MORE TIME AT THE DESIGN OFFICES ON DESIGN AND PRODUCTION INFORMATION STAGES HELPS THE SHIPYARDS IN COST SAVINGS.

LOWER SKILLED LABOUR AT THE YARDS AND REDUCTION OF IN-HOUSE WORKERS AT THE YARD IN TERMS OF DESIGN.

TIME CONSUMPTION SAVINGS AND STRUCTURED FLOW FROM DESIGN OFFICES TO SHIPYARDS.

MATERIAL CONSUMPTION SAVINGS.

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QUESTIONAIRE SESSIONMULTUMESC

THANK YOU

GRACIAS

DANKIE

PALDIES

GRAZIE

MERCI

TAKK

KIITOS

TERIMA KASIH

REDANKT

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