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VESSEL STRUCTURE CONDITION CBT
Tài liệu
VESSEL STRUCTURE CONDITION CBT
Nguồn: khoa hàng hải
1.1) Which is the correct Hierarchy of Hull Strength Members?
- Plate, Stiffeners, Girders, Tank and Hull Girder.
1.2) Which of the bellow structures of bulk carriers one considered critical?
- Upper and lower connections of main side frames.
1.3) Click the different ship conditions and text and drag them, by moving the mouse, to the corresponding
beam. Click the continue – bottom when finished.
Combination
Tension
Shear
Compression
1.4) What is the purpose girders in the tank?
- They support the stiffeners and also take up same of the sea force.
2. Externals and Internals Forces…
2.1) What is the difference between static and dynamic forces on the ship hull?
- Static forces are set up by the cargo and the sea, and dynamic forces are set up by the sea(wave – action)
2.2) Will the internal and external forces acting on Bulk Carrier Cross Section change during loading?
- Yes, the internal forces from load and the sea water pressure will increase during loading.
2.3) What is the worse case consideration for the hull girder at sea?
- When a wave length between the crests is approximately equal to the length of the ship.
2.4) What type of dynamic force may cause indent in plating on forecastle deck and main deck in way of pillars inside forecastle?
- Pressure force causes by green water on deck.
3. Combination of Strength…
3.1) When does a bulk carrier experience extreme tension in bottom structure during fast rate loading.
- During loading of heavy cargo in mid – ship holds.
3.2) Point and click at the critical area most subjected to crack in the bottom web frame in the oil tanker.
