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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.
2
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
3
INTRODUCTIONTHE STAGE AT WHICH THE THESIS IS CARRIED OUT
Requirements
Conceptual designBasic design
Detailed designProduction
InformationShipyard
Ship
4
INTRODUCTIONCRITICAL AREAS WHERE THE THESIS IS CARRIED OUT
HULL PIPING
5
SOFTWARE DESCRIPTIONSOFTWARES USED IN THE THESIS DEVELOPMENT
NUPAS-CADMATIC
AUTONESTING
AUTOCAD
POSSIBLE OPTIONS OF USING OTHER SOFTWARES FOR MODELLING
AVEVA MARINE
NESTIX
6
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
7
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
9
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
10
DETAILED DESIGN AND PRODUCTION INFORMATION STAGES
ADDITIONAL INFORMATION FOR THE ACTIVITIES
NESTING OPERATIONS
BENDING OF PLATES FOR THE HULL
11
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
17
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
19
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.
20
QUESTIONAIRE SESSIONMULTUMESC
THANK YOU
GRACIAS
DANKIE
PALDIES
GRAZIE
MERCI
TAKK
KIITOS
TERIMA KASIH
REDANKT
21
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