antiterror13
Brigadier
Very interesting, I thought the submarine construction was indoor
Yuan Class AIP & Kilo Submarine Thread
- Thread starter Jeff Head
- Start date
Very curious i have never see it sailors help for build seems... we see severals whose 2 inside and seems not build in modules as actually all submarines strange.
These pics from ?
SamuraiBlue
Captain
I doubt this is an actual photo of construction and just a photo op.They are pumping this sub fast
建造中の039型潜水艦
039 type submarine under construction
Welding steel pieces to construct the hull is very weak in creating structural integrity and will buckle at the seams under compression.
To my knowledge a single sheet of steel is bent under either the cold press method or the heat warp method and then a single seam is welded through friction stir wield to create a circular hull compartment. The compartments are then welded together with the same friction stir weld to create a tube as they construct the interior of the hull.
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The outer (hydrodynamic) hull does not need be bent from a single sheet of steel since it's not built to have to withstand high water pressures.
SamuraiBlue
Captain
Where do you think water pressure is mounting against the inner hull????
The water surround the sub is in contact with the outer hull meaning the pressure is also pressing against the outer hull as well.
The pressure hull is always in interior but exist different types of construction
- 1 hull but not completely in fact some minor parts have 2 for Western Submarines style
- And Soviet style as China logicaly have copied for several classes especialy SSNs/Yuan with 2 hull external do several mm internal several cm for Oscar SSGN 4,5 to 6.8 cm ! and exist also one hull and half for new Yasen normaly Borey with one hull in front and rear double hull to the center reason why despite yasen is more big than a Akula have same displacement.
Only the Lada have only one hull.
The double hull include huge ballasts for Oscar also SS-N-19 launchers but for empty necessary big holes not good for hydrodynamic but allow more important depth and more resistant for an eventual critical hit a breach in the pressure hull also better buoyancy.
Attachments
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RU Yasen 885.jpg
Alright, genius.
Since pressure differential between the two sides of the outer hull is negligible, total shear forces and bending moments are negligible. Thus, the outer hull has no need to be anywhere near as solid as the inner hull.
SamuraiBlue
Captain
And what is filled between the two hulls?Alright, genius.
Since pressure differential between the two sides of the outer hull is negligible, total shear forces and bending moments are negligible. Thus, the outer hull has no need to be anywhere near as solid as the inner hull.
If your answer is ballast water then what do you think will happen when they blow the ballast water out between the hulls to gain bouncy ?
If your answer is fuel then again what happens as you use fuel and the space between the two hulls becomes empty?
Basically your illustration and more importantly the equation written within fails within the situation I had wrote above.
More over double hull does not mean an interior hull is completely shelled inside by an outer hull.
Hendrik_2000
Lieutenant General
039 type of submarine early model
Look modern control panel
Look modern control panel
Hendrik_2000
Lieutenant General
Torpedo room?
