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Marine Kit - 1 Shipyard Operations

Marine Kit - 1 Shipyard Operations. Shipyard Operations Description. This shipyard operations activity requires two class periods Students work in groups of 4 Each session can be completed within one class period (55 min.)

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Marine Kit - 1 Shipyard Operations

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  1. Marine Kit - 1 Shipyard Operations

  2. Shipyard Operations Description • This shipyard operations activity requires two class periods • Students work in groups of 4 • Each session can be completed within one class period (55 min.) • Students learn about the various departments by building a paper container ship.

  3. Shipyard Operation Schedule Day 1: Shipyard Operations Day 2: Design Calculations

  4. Day 1 Day 2

  5. Production Layout Material Flow Information Flow There are three departments within our shipyard and an external supplier Plasma Cutting Bending Machine Supplier Welding Our shipyard builds a container ship

  6. Day 1: Activities • Instruction manual is provided to guide students in constructing the ship • Three departments are involved in this shipyard operation (excluding the Supplier) Teacher serves as the Supplier • Plasma Cutting Shop cuts the plates • Plate Shop bends the plates to form hull modules • Welding & Final Assembly Shop assembles the ship modules

  7. Starboard Stern Bow Port Bow : Front part of the ship Stern : Rear part of the ship Starboard : Right side of the ship Port : Left side of the ship Ship Terminology

  8. Ship Terminology Port Stern Bow Starboard

  9. Activity Involved in the Plasma Cutting Shop • Receives steel plates from the supplier • Cuts the plates along the solid line • Sends the parts to the Plate Shop • All the parts are numbered in the order in which they have to be sent to the next department.

  10. Bow – Cut Part from Plasma Shop Cut along solid lines

  11. Mid-Hull – Cut Part Fold along dashed lines

  12. Stern – Cut Part Directions for folding Part Number

  13. Bulk Head – Cut Part

  14. Bow Deck Plate – Cut Part Stern Deck Plate – Cut Part

  15. Mid-Hull Deck Plate – Cut Part

  16. Super Structure – Cut Part

  17. Activity Involved in the Plate Shop • Receives steel plates from the Plasma cutting shop • Bends the parts along the dotted lines using the instructions given in the instruction sheet • Sends the parts to the welding shop

  18. Bow – Bent Part Bow Deck Plate – Bent Part

  19. Mid – Hull Deck Plate – Bent Part Mid – Hull – Bent Part

  20. Bulk Head – Bent Part Stern – Bent Part

  21. Super Structure – Bent Part Stern Deck Plate – Bent Part

  22. Activity Involved in the Welding Shop • Receives bent plates from the Plate shop • Welds (gluing/taping) the plates along the length of the joints and then assembles the parts • All the parts are joined to build the final assembly

  23. Welding and Final Assembly of Bow

  24. Welding and Final Assembly of Mid-Hull

  25. Welding and Final Assembly of Stern

  26. Welding of Super Structure

  27. Final Assembly of the Ship

  28. Day – 2: Design Calculations In the first set of calculations students are required to calculate: • Weight of the ship • Weight of displaced water • Draft of the ship and • Kinetic Energy of the ship * The formulae and instructions for calculations are given to the students *

  29. A t Q 1. Calculation of Weight of the Water Displaced by the ship Step 1: Area of the Plates Step 2: Volume = Area*thickness where A = Area and t = thickness Step 3: Total Weight = Weight of the ship + Weight of the containers • Weight of the ship = Sum of weight of each steel part • Weight of the containers(1500 TEU containers)(Weight of 1 TEU container=24 tons) Weight of displaced water = Weight of loaded Ship = Weight of Ship+ Cargo Weight

  30. Q 2. Calculation of Draft of the Ship

  31. Q 3. Calculation of Kinetic Energy of Ship KE = ½ * m * v2 We know, 1 kg = 9.8 N 1 Ton = 9800 N Weight = m * g Therefore, m = weight/g where g = 9.8m/s2

  32. Sample Student Worksheets

  33. A1 A1=A3 A4 A4=A6 A2 A2 A5 A5 Area Calculations - Bow Area of Bow= A1+ A2+ A3+ A4+ A5+ A6 = __________sq. mm = ___________sq. m

  34. Hull Plate thickness: 5cm and Deck Plate thickness: 2.5cm

  35. Calculation’s of Weight of the Ship Total weight of the Steel Plates =6,336,720 kg

  36. Calculation of Weight of Water Displaced by the Ship Sum of weight of each part = _____________ kg = __________ tons Weight of steel used is approximately 50% of the weight of ship Therefore, the weight of the Ship = ___________ tons Weight of 1 TEU container = 24 tons Weight of 1500 TEU containers = ________________ tons Therefore, weight of water displaced by the ship = Weight of the Ship + Weight of the Containers = ___________________ tons

  37. Q 2. Calculation of Draft of the Ship - Sample For example: The draft for the corresponding weight of water displaced (shown by the arrow) is 4.73 m

  38. Calculation of K.E of the Ship KE = ½ * m * v2 Cruising speed = 26 knots (1 knot = .514 m/s) V = ___________ m/s We know, 1kg = 9.8 N, 1 Ton = 9,800 N So, 48,684 tons = _____________ N Weight = m * g (g= 9.8 m/s) m = _______________ kg KE = _________________ J

  39. Quality Assessment Shipyard Operations will be assessed based on the following quality characteristics • Cutting on the solid lines • Cutting the corners and intersections properly • Gluing the joints properly • Hull alignment • Bends are straight and creased

  40. Wrap-up • Make sure all the items are put back in the kit box and returned to the teacher. • Please clean the working area.

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