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Structural Elements of a Ship's Hull. This diagram shows the key structural elements of a ship's main hull (excluding the bow, stern, and deckhouse). Deck plating (a.k.a. Main Deck, Weatherdeck or Strength Deck) Transverse bulkhead; Inner bottom shell plating; Hull bottom shell plating; Transverse frame (1 of 2) Keel frame
Ship stability is an area of naval architecture and ship design that deals with how a ship behaves at sea, both in still water and in waves, whether intact or damaged. Stability calculations focus on centers of gravity , centers of buoyancy , the metacenters of vessels, and on how these interact.
The most forward and lowest curved part of the ship is the stem (not normally the extended part beyond the hull). The bow of the oil and chemical tanker Bro Elizabeth in dry dock in Brest, France. This ship does not have a stem. The stem is the most forward part of a boat or ship's bow [1] and is an extension of the keel itself. It is often ...
Hogging is the stress a ship's hull or keel experiences that causes the center or the keel to bend upward. Sagging is the stress a ship's hull or keel is placed under when a wave is the same length as the ship and the ship is in the trough of two waves.
A structural keel is the bottom-most structural member around which the hull of a ship is built. The keel runs along the centerline of the ship, from the bow to the stern . The keel is often the first part of a ship's hull to be constructed, and laying the keel , or placing the keel in the cradle where the ship will be built, may mark the start ...
Frames support the hull and give the ship its shape and strength. In wooden shipbuilding, each frame is composed of several sections, so that the grain of the wood can follow the curve of the frame. Starting from the keel, these are the floor (which crosses the keel and joins the frame to the keel), the first futtock , the second futtock , the ...
The blue and white part of the ship is the superstructure and the yellow part of the ship is the hull. A superstructure is an upward extension of an existing structure above a baseline. This term is applied to various kinds of physical structures such as buildings, bridges, or ships. [1]
The first part of the code represents a numbered deck, the second part of the code is a hull support frame numbered sequentially from the bow, the third part of the code is a number representing compartment position with respect to the ship's centerline, and the fourth part of the code is alphabetic representing the use of that compartment. [13]