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A pressure hull is a strong, sealed structure designed to withstand external pressure while maintaining a safe environment inside, commonly used in submarines and deep-sea vehicles. It is constructed from robust materials, such as steel or titanium, and is engineered to distribute stress evenly across its surface. As external water pressure increases with depth, the hull prevents water from entering and protects the occupants and equipment inside from the crushing forces of the ocean. The design includes features like rounded shapes to minimize stress concentrations and ensure structural integrity.
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What is a casing deck on a submarine?
A casing deck is another term for a submarine's superstructure hull, which is the outer hull that protects the inner pressure hull. Using a thermos bottle as an analogy, the inner container where liquid goes would be the pressure hull, and the outer case which protects it the superstructure, or outer hull.
Can water exert pressure on a submarine?
Yes, water exerts pressure on the hull of the submarine.
Why are submarines always built with very thick and heavy metal?
The pressure hull of a submarine must withstand the pressure of water at depth. Hundreds of pounds of pressure per square inch translates into many tons of pressure around a pressure hull. If that hull doesn't have the strength to stand up to this, the pressure hull will implode. Steel is a "known quantity" as far as metals. We've used it for a long time, and we have a good handle on its characteristics. Steel alloys are extremely strong, fairly easy to fabricate, and won't double the national debt if we use this metal to make a submarine pressure hull. Steel's weldability and its common availability make it a fine choice for submarine pressure hulls. It's really strong, too. That's a big plus. No one wants to be inside the pressure hull of a submarine when it fails.
How much pressure does a boat through hull pickup produce?
A will
What happens when a submarine reaches crush level?
When a boat reaches its crush depth limit, the inner pressure hull succumbs to the extreme outer sea pressure, causing the hull to implode.
What has the author D A Hull written?
D. A. Hull has written: 'Ideology and social work'
What kind of hull holds the most weight?
Maybe a pointed hull will work the best
Why might a submarine be crushed if it sinks too low in the ocean?
Submarine hulls are subject to sea pressure, and that pressure increases the deeper the submarine goes. There are design limits to the amount of pressure that a hull can take, and if that pressure is exceeded by diving too deep, the hull will fail and will be crushed.
Why does the strength of a submarine hull have to be stronger than the hull of a ship?
because if a submarine goes under water to deep levels, it needs to hold against the air pressure. Yes the person said above.. They have to have a MUCH higher ability to withstand the pressure of the water pushing in against the hull of it.
What are pressure hulls on a submarine?
Submarines have 2 or more hulls - the superstructure, which is the visible external hull you see, and the inner pressure hull, which contains all the primary equipment and houses the crew. The space between the superstructure and the pressure hull is where the main ballast tanks are located, as well as line lockers, access/weapons hatches, etc. The pressure hull is where the crew lives and works (and keeps on working...). The primary reason there are 2 hulls is that the pressure hull, while optimally designed for maximum sea pressure resistance, isn't designed for optimum speed and maneuverability underwater. The superstructure, built over the pressure hull, streamlines the boat and compensates for this, making modern boats extremely fast and maneuverable underwater. The best analogy is a thermos bottle, which has an outer shell (the superstructure) that protects and insulates the inner thermal bottle (the pressure hull). The Russians are known to use a double-layered superstructure on their larger boats, the theory being to insulate the pressure hull from a torpedo attack. The problem with that theory is that modern torpedoes don't need much proximity to severely damage or sink submarine, and any significant damage
Why is the hull of submarines specially strengthened?
To prevent it from collapsing from the high pressure of the water outside while submerged. Roughly every 30 feet of depth under water adds another atmosphere of inward pressure on the hull.
Why does a submarine not implode under water?
Submarines will implode very well if they go to a depth past their rated crush depth. All boats are designed to withstand a lot of PSI on the hull, and most boats are designed so that the hull contracts and expands with depth changes. This ability to flex increases the longevity of the hull, though not all navies build their boats that way. In addition to hull design (usually spherical or cigar shaped, the best design for pressure), boats maintain a positive air pressure inside while submerged. This is less about pressure on the hull than it is to maintain a vigil on hull integrity; if pressure in the boat drops, it means there's a leak or flooding somewhere, or a hatch not sealed properly.
