A deck is a permanent cover on a compartment or hull. Aboard a ship or ship, the main or upper deck is a horizontal structure that forms the "roof" of the hull, strengthens it and serves as the main working surface. Ships often have more than one level both inside the hull and on top of the building on the main deck, similar to the floor of a multi-story building, also called a deck, such as certain compartments and decks built over certain areas of the superstructure. The deck for some destinations has a specific name.
Video Deck (ship)
Structure
The main purpose of the upper or upper deck is structural, and only secondary to provide airtight and support people and equipment. The deck serves as a lid for the complex box girders which is paid off. It holds tension, compression, and squeezing power. Deck trimming is usually the same as the top, or may be heavier if the deck is expected to carry heavier loads (eg container vessels). Deck will be reinforced around deck fittings such as rollers, cleats, or bollards.
On ships with more than one level, the deck refers to the level itself. The floor surface is actually called single, the term deck refers to the structural members that bind the ship's frames or ribs together on top of the hull. On modern ships, interior decks are usually numbered from the main deck, the # 1, down and up. So the first deck below the main deck will be # 2, and the first on the main deck is # A2 or # S2 (for "Above" or "Superstructure"). Some merchant ships may choose deck under the main deck, usually the engine room, number, and above, in the accommodation block, with letters. Ships can also call a deck with a common name, or (especially on a cruise ship) can create fantastic and fantastic names for a particular deck or area of ​​a particular ship, such as the Lido Boot of Princess Cruises'
Deck-mounted equipment, such as ship wheels, binnacles, railroads, and so on, can be collectively referred to as deck furniture. The weather deck in the western design evolved from having the fore structure (front or front) and the rear (back) of the ship largely clear; in the 19th century, tenement/launch houses and stage houses began to emerge, eventually evolving into the superstructure of modern ships. The eastern design was developed earlier, with an efficient central deck and a minimalist front and rear cabin structure in various designs.
Maps Deck (ship)
Common name for deck
On boats that have more than one deck there are various naming conventions, numerical, alphabetical, etc. However, there are also various names and common types of decks:
- level 01 is the term used in the naval service to refer to the deck above the main deck. The next higher deck is referred to as level 02, level 03, and so on. Although these are formally called decks, they are usually referred to as levels, as they are usually incomplete decks that do not extend all the way from the rod to the stern or on the ship.
- Afterdeck the deck area opens to the stern.
- Berth deck : ( Naval ) The next deck under the deck of the weapon, the crew's hammock is draped.
- Deck ship : Especially on boats with sponsorship, deck area where lifeboat or ship show is kept.
- Boiler deck : (river evaporator) Passenger deck above boat boiler.
- Bridge deck : (a) Deck areas include steering and navigation stations, and where Deck/Watch Officers will be found, also known as conn (b) A structure altwartships at the front end of the cockpit with a deck, often somewhat lower than the main deck, to prevent waves from passing through the companion path. May also refer to the bridge deck.
- Flight deck : ( Naval ) Deck where the plane took off or landed.
- Flush Deck : Continuous uninterrupted deck from stem to stern.
- The Forecastle Deck : The deck is partly above the main deck where sailors have berths, extending from pole to bow.
- The freeboard deck : set by the classification community to determine the ship's freeboard; usually the highest continuous deck, which is equivalent to the main deck.
- Dek Gun : ( Naval ) on a multi-deck liner, deck below deck above where the ship's cannon was brought. The term was originally called a deck whose main function was the installation of a cannon to be fired in broadsides. However, on many smaller and irregular vessels, the upper decks, forecasts and quarterdeck bore all cannons but are not referred to as weapon decks.
- Hangar deck : ( Naval ) The deck above the aircraft carrier used to store and maintain the aircraft.
A traditional wooden deck will consist of boards placed in front of and behind the beams and along the carlins, the seams that are strung out and paid for with tar. A yacht or other luxury vessel may have a deck mounted, with a cloth laid out in a thick coat of paint or a sealant, and an additional coat is painted. The washer or apron forms a joint between the deck and the top, and is disguised equally.
Modern "built decks" are used primarily in fiberglass, composites, and cold-formed hulls. The bottom structure of the beams and carlins is the same as above. The jewelry itself is usually layered in layers of sea plywood, covered with fiberglass layers in plastic resins such as epoxy or polyester overlap onto the top of the stomach.
Methods in metal
In general, the methods outlined for "built decks" are very similar to metal decks. Deck coatings are placed on metal beams and carlins and taped temporarily. The difficulty in metal construction is to avoid plate distortion during welding due to the high heat involved in the process. The weld is usually passed twice, which means each layer is welded twice, a time-consuming process that may take longer than building a wooden deck. However, the weld results on the waterproof deck are strong and easy to repair. The deck structure is welded to the hull, making it structurally one unit.
Because the metal deck, painted to reduce corrosion, can take heat from the sun, and is quite slippery and noisy to work on, a thick layer of wood or a thick, non-slip paint is often applied to the surface.
Method in fiberglass
The process for constructing the deck in fiberglass is the same as for building the hull: the female mold is constructed, the layer of gel coat is sprayed, then the fiberglass layer in the resin is built up to the required deck thickness (if the deck has a core, the outer skin layer of fiberglass and resin is laid, core, and finally the inner skin layer.) The deck is removed from the mold and is usually mechanically fastened to the stomach.
Fiberglass decks are slippery enough with their mirror-smooth surfaces, so non-skid textures are often shaped onto their surfaces, or non-slip pads glued in the work area.
The rule of thumb for deck scantling
The thickness of the decking affects how strong the stomach is, and is directly related to how thick the skin of the stomach itself, which is of course related to how large the ship is, the type of work it is expected to do, and the type of weather that might be expected to last. While naval engineers or architects may have the right methods to determine what to do, traditional builders use previous experience and simple rules to determine how thick the deck should be built.
The numbers derived by this formula give a rough figure to determine the average thickness of the material based on some measurements of raw hull. Below the waterline, the thickness should be about 115% of the result, while the upper and upper deck can be reduced to 85% of the yield.
- In wood - For board thickness in inches, LOA (Length OverAll) and Beam are measured in feet. For the thickness of the inner board mm, LOA and Beam are measured in meters.
- The depth of the board inside =
- Board thickness mm =
- In fiberglass - For leather thickness in inches, LWL (Line Length) is in the foot. For thickness of skin in mm, LWL in meters.
- Skin thickness (inches) =
- Skin thickness (mm) =
- In fiberglass sandwiches - First define the thickness of the skin as a single skin, then multiplied by the transformer for the inner shell, outer shell, and core thickness. Cored decks can be modified more thickly, 2.6-2.7, to increase stiffness.
- Inner skin modifier = 0.3
- External skin modifier = 0.4
- Core modifier = 2.2
- Source:
Note
External links
- The history of the ship's deck and the old language of Northern Europe
- Equipment on the vessel deck approximate.
Source of the article : Wikipedia
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