1. Ship Design

2. Ship Life Cycle Definition of Requirement
Determination of Data and Constraints
Concept Design
Preliminary Design
Contract Design
Detail Design
Production
Tests and Trials
Service
Scrapping

3. Design Spiral Length Breadth Depth Draught Form Power Area Weight
Definition of Requirements
Length
Breadth
Depth
Draught
Form
Power
Area
Weight
Displacement
General
Arrangement
Range
Seakeeping
Manouvrability
Strength
Economic
Analysis
Constraints
(Design)
(Design Process)
COnstraints
(Design Environment)
Next Design Step
Choice
Empirical
Calculations
Selection
Machinery
Ship
Type
Area/
Weather
Deck
Calculationsr
Preliminary
Control
Longitudinal
Life

4. Design Through Selection

5. Basic Ship Types Weight Critical Ships Volume Critical Ships
Unit Cargo Ships

6. The Weight Equations (1)
s : displacement due to shell, appendages
L: LBP or LWL
B: Breadth
T: Draught

7. The Weight Equations (2)

8. DW/D Ratio

9. DW/D Ratio

10. Volume

11. Volume

12. Length Beam Relation

13. Ship Length

14. Critical Factors Effecting Ship Length
Construction limitations of the shipyard (Length of slipway, port limitations, canal limitations etc)
Structural-Regulative limitations (number of bulkheads,
Interference of bow waves and stern waves
L/D limitations of class societies

15. Breadth Resistance (L/B) considerations suggests minimum breadth
Stability (B/T, B/D) considerations suggests maximum breadth

16. Length-Breadth Relation

17. Length-Breadth Relation

18. Beam-Depth Relation

19. Beam-Draught Relation

20. Draught-Depth Relation

21. Length-Depth Relation

22. Block Coefficient (CB) Alexander Formula
K varies between 1.03 for high speed ships to 1.12 for slow ships
Lf : Ship length in feet
Vk : Ship speed in knots

23. Block Coefficient (CB)

24. Hull Weight (WH)

25. Outfit Weight (WH)

26. Outfit Weight (WO)

27. Main Engine Weight

28. Main Engine Weight

29. Remainder Machinery Weight

30. Total MachineryWeight for Diesel-Electric Ships

31. Scrap Weight

34. Nmber of Containers