Downloaded 53 times
More Related Content
Similar to Early stage Ship design Process
Early stage Ship design Process
- 1. mission: SHIP DESIGN TheEarly Stage Ship Design PRAVEEN K CH.
- 2. Contents 1. Introduction 2. ConceptDesign 3. Preliminary Design
- 3.
- 4. Ship Design (Activity) What isShip Design? Goals (Input) Data to make a ship (Output) Ship Design is an activity that makes data needed to make a ship Tools
- 5. Goals Requirements the shipshould fulfil.. I N C L U D E S What it should be capable do?What is the purpose of making the ship? How it should be? What it should withstand? How it should do what it does? How much it should cost?
- 6. Ship Design Data Specifications,Drawings, Plans etc., that satisfactorily define a ship to construct, operate... How it actually looks? How to construct?? How it performs? What are the specs? What are all there in it? Certificates I N C L U D E S How things are arranged inside? How to Operate?? Where lies what? Design Conditions
- 7. Make the builderhappy, Construction = Mission Possible Make the owner happy, Meets the requirements with less $$$$$$ Make the operator happy, i.e., make $$$$$$$ without much trouble Make the People & Government happy, Safe Environment, Safe Life Make the Insurance guy happy, Be as per their rules and get the class certificate S H O U L D
- 8. Ship Design isnot done in one go by one individual Split into Done in By TASKS PHASES TEAMS Ship Design is
- 9. System Oriented DesignProduction Engr. Prelim. Design Contract Design Concept Design Functional Design Transition Design Workshop Info. Structural Design Total Ship Analysis & Checks (Weight, Stability, Cost etc.) Hull Design General Arrangements Machinery & Systems Design Product- ion Info. Work Breakup Etc., Blocks Zones Build Plan 3D Model Material INTERNAL CONFIG. EXTERNAL CONFIG. ANALYSIS PHASES / STAGES T A S K S REQUIRMENTS STUDY
- 10. System Oriented DesignProduction Engr. Prelim. Design Contract Design Concept Design Functional Design Transition Design Workshop Info. Structural Design Total Ship Analysis & Checks (Weight, Stability, Cost etc.) Hull Design General Arrangements Machinery & Systems Design Product- ion Info. Work Breakup Etc., Blocks Zones Build Plan 3D Model Material INTERNAL CONFIG. EXTERNAL CONFIG. ANALYSIS PHASES / STAGES T A S K S REQUIRMENTS STUDY
- 11. Prelim. Design Contract Design Concept Design Functional Design Transition Design Workshop Info. Structural Design Total ShipAnalysis & Checks (Weight, Stability, Cost etc.) Hull Design Machinery & Systems Design Product- ion Info. Work Breakup Etc., Blocks Zones Build Plan 3D Model Material PRE BID DESIGN AGREEMENT POST AGREEMENT CONTRACT EXECUTION Tender Notice Bid & Selection Contract Agreement Production Starts LEVEL OF DETAILING INCREASES General Arrangements
- 12.
- 13. Concept Design: Why? •Work with owner & deduce RequirementsREQUIREMENTS • Check feasibilityFEASIBILITY • Search similar ship data & AnalyseSHIPS • Build a Concept model of the shipMODEL
- 14. Highlights : Conceptdesign • Not in detail Design • Assumptions • First Principle Calculation • Empirical • Iterative : Trail and Error • Rough Sketches • Finish in short time
- 15. Cargo type Cargo Capacity Size Restrictions Endurance Speed Rules& Regulations Port Requirements Environment Conditions Manning Accommodati on Vessel Design Life Propulsion Electrical plant Structure Navigation Communicati on Automation Stability Sea keeping Mission Systems Weapons & Payloads Damage Survivability Work with owner and deduce REQUIREMENTS Tender documents contain requirements List of Typical REQUIREMENTS INITIATION REQUIRE STUDY
- 16. SHIP TYPE STUDY: GENERALCHARACTERISTICS • Categories • Size Categorise etc., • Performance Characteristics • Speed, Endurance, Capacity, etc. • Hull Characteristics • Dimensions, Ratios, Coefficient etc. • Typical Arrangements • Systems & Machinery on board • Structural Configuration GET SIMILAR SHIP DATA • 5-20 Most similar ships data set • Similarity based on requirements • Data set includes • Principal Dimensions • Capacities (DWT, TEU etc.,) • Speed • Etc., relevant data • Analyse data • Deduce relations INITIATION REQUIRE STUDY
- 17. CONCEPT DESIGN Mono / Multi Displace. /Planning Form: Full/Fine Bow & Stern Section Shapes Entrance Run Parallel middle body SheerCamber Append. Etc.. ESTIMATE MAIN PARTICULARS LBP B D T V CD CB CP CM CW FN ΔT CONCEPT SKETCHES MIDSHIP WATERLINES PROFILE SECTIONS HULL FORM CHARACTER -ISTICS Features Size Sketches HULL GA SYSTEMS STRUCT ANLSY
- 18. SPACE ALLOCATION CONCEPT EARLY ESTIMATES CONCEPT SKETCHES Cargo MachineryLiving Bridge Weapons Tanks others Capacity Engine Room Manning Super structure Etc. Deck Plan Profile Section SUBDIVISION CONCEPT Framing system Bulkheads Decks What is Where ?? Scales & Walls How much can it take? Sketches CONCEPT DESIGN HULL GA SYSTEMS STRUCT ANLSY
- 19. CONCEPT DESIGN PROPULSION CONCEPT SKETCHES Resistance Power PlantPropeller Simple Line Diagrams LIST KEY SYSTEMS & THEIR TYPE Main Propulsion Service Systems Steering Gear Fire Safety Cargo handling Electrical Etc. Tech Specs Mover Diagrams HULL GA SYSTEMS STRUCT ANLSY
- 20. CONCEPT DESIGN LIST STRUCTURAL MEMBERS CONCEPT SKETCHES Midship Forward Aft STRUCTURAL CONFIGURATION MATERIAL LOADPATHS Framing Type Arrangement Functional Category Primary Secondary Tertiary Material Properties and limits How Loads are distributed along the structure? Grid (Skeleton) Bars Steel Logic Sketches HULL GA SYSTEMS STRUCT ANLSY
- 21. CONCEPT DESIGN CAPACITY WEIGHT STABILITY PROPULSION LSW+ DWT =Buoyancy Capacity = Required Sufficient GM Feasibility SEA KEEPING Roll, Pitch, Heave Natural Frequency Check LOADLINE Freeboard as per the ILLC COST Cost Estimation MANUVER ABILITY Rudder Area, Location STRUCT Midship Section Modulus VIBRATION Modal Freq. HULL GA SYSTEMS STRUCT ANLSY
- 22.
- 23. PRELIMINARY DESIGN • ShipSystems are designed • A basis for tender • Formal Calculations & Drawings
- 24. PRELIM. DESIGN MAIN PARTICULARS LINESPLAN SURFACE MODEL HYDROSTATICS LWL V ∆ LCB LCF KB AM AW CB CM CW CP BMT BML KMT KML TCP MCT LOADLINE CHECK DWT+LWL =∆ ILLC HULL GEOMETRY KN CURVES KN(φ,T) GZ(φ) @ T=DESIGN DRAFT Make Dip Tilt Check HULL GA SYSTEMS STRUCT ANLSY
- 25. PRELIM. DESIGN COMPARTMENTS & COMPONENTS ESTIMATES DECKS & PROFILES Cargo MachineryLiving Bridge Weapons Tanks others Cargo Capacity Engine Room Manning Super structure Etc. Deck Plan Profile Section SUBDIVISION Framing System Bulkheads Decks Stairs & Walls Rooms Capacity Plans HULL GA SYSTEMS STRUCT ANLSY
- 26. PRELIM. DESIGN Resistance Power Plant Propeller Design SYSTEMS COMPONENTS DIAGRAMS Main Propulsion Service Systems Steering Gear FireSafety Cargo handling Electrical Navigation Communica tion HVAC Access Equipment List Etc. Mover Working PROPULSION RUDDER Rudder GeometryTurning HULL GA SYSTEMS STRUCT ANLSY
- 27. PRELIM. DESIGN DRAWINGS Midship SectionForward Section Aft Section MATERIAL STRUCTURAL ARANGMENT SCANTLINGS ANALYSIS Long. Strength Stem Stern Bottom FMA Side FMA Deck FMA Bulkheads Super structure Rudder Neutral Axis FMA = Forward, Middle and Aft Structural Design HULL GA SYSTEMS STRUCT ANLSY Section Modulus
- 28. PRELIM. DESIGN CAPACITY WEIGHT STABILITY & LONG. STRENGTH PROPULSION LSW+ DWT= Buoyancy Capacity = Required Trim & stability book Probabilistic Damage stability Systems Analysis SEA KEEPING Motions and Loads LOADLINE ILLC Table COST Cost Estimation MANUVER ABILITY Characteristics VIBRATION Modal Analysis HULL GA SYSTEMS STRUCT ANLSY
- 29. HULL SYSTEM GA STRUCTURE What are itsFeatures? How much Size? How it looks?- Sketches Which Space is Where? Enough Space? How it Looks?- Sketches How to Propeller? What are key systems? Any Line diagrams. How to strengthen? What are Key members? Any Sketches? Empirical Checks - Weight, Capacity, Stability, Powering, Sea keeping, Manoeuvring, Vibration, Strength.. TOTAL ANALYSIS Generate Hull in detail Hydrostatics & KN Curves Load line check Subdivision Spaces & Components- Plans Capacity Propulsion & Powering Calculations Systems and Specifications Line Diagrams Structural Arrangement & Scantlings Longitudinal Strength & Section Modulus Midship section & structural drawings Analytical Calculations - Weight, Capacity, Stability, Powering, Sea keeping, Manoeuvring, Vibration, Strength.. CONCEPT DESIGN PHASE PRELIMINARY DESIGN PHASE
- 30. Main Rules &Regulations • IMO – International Load Line Convention 1966 • IMO – Intact Stability Code 2008 • IMO – SOLAS 1974 • IMO – MARPOL • ILO - Maritime Labor Convention, 2006 • CLASS Society – Rules and Regulation
- 31. That’s all Fornow…