"The submarine will approach ideal bioforms": the submarine SMX31E is being developed in France

The new fully electric submarine will be able to stay submerged for 40 days thanks to its batteries. Extremely smooth hull shapes, "close to ideal bioforms", and a scaly coating will provide a high level of stealth, and on board Drones will provide additional combat capabilities.

Biomimicry in action

So the publication Mer et Marine describes the submarine being developed by the Naval Group.

From concept to reality is now only one step away

- writes the edition Mer et Marine.

The new project was first introduced in 2018 under the designation SMX31. Since then, significant adjustments have been made to it and now it appears under the SMX31E index. The length of the submarine now reaches 80 m, the width is about 10 m, the displacement is about 3200 tons. When designing the product, the developer was guided by the principle of biomimicry, "to get closer to the fluidity of the natural ideal forms of large marine mammals."

For the same purpose, the submarine's coating was made scaly. It consists of rubber plates that suppress echolocation. It is envisaged that individual slabs will be fitted with sensors that assess the environment.

Traditionally, submarines consist of several horizontal "cylinders" interconnected by airlocks, since this position of the blocks is believed to provide the greatest resistance to pressure at depth. The developer went against this practice. The "cylinders" are in an upright position, which is said to "result in greater strength and new possibilities, such as easier placement on the seabed." The operational depth of the submarine will correspond to the current realities, reaching 300-350 m.

Li-ion filling

The power plant will be represented by lithium-ion batteries (LIB). As stated, in contrast to lead-acid, they are characterized by increased energy consumption, the possibility of a sharp increase in speed, significantly faster recharging, increased safety and easier maintenance. A prototype of these batteries is currently being tested on land.

Test results in recent years, coupled with recent technological advances at the LIB, should enable conventional submarines to experience a true revolution.

- writes the edition.

As noted, LIB was once attributed to a big drawback - the need to rise to the surface for recharging. However, in the near future, the period of their autonomous operation will be 40 days at a speed of 8 knots, the maximum possible stroke when using LIB is over 20 knots, which exceeds the performance of the old generation submarines. At the same time, LIB allows you to achieve a great advantage - fast ascent to the surface. Competitor LIB - Anaerobic systems (AIP) provide at best two to three weeks of immersion at a significantly slower rate.

With the SMX31E we get to a fully electric submarine that does not need AIP or battery recharging during the mission

- indicates the publication, noting that a small diesel engine is provided, but only in case of an emergency.

The propulsion system will drive two streamlined side propellers that will replace the traditional rear propeller.

Crew from a platoon of sailors

The duration of the immersion and the high speed of travel will increase the monitoring of space by 10-12 times in comparison with the submarine "Skorpen". It is planned to install a hangar for robotic vehicles and buoys. They are planned to be placed in the feed area. One of the drones can be the D19 product (intended for reconnaissance), created on the basis of the 533-mm AUV torpedo. It can be launched through torpedo tubes. Underwater gliders (gliders) can be used, which are able to surf the oceans for several weeks.

The submarine will carry an ammunition load of about 20 torpedoes and missiles (with horizontal launch from vehicles in the stern and on the sides of the hull), not including 6 D19s and 2 AUVs located in external modules.

Thanks to deep automation, the crew will be only 15 sailors with the ability to take on board from 12 to 20 people, for example, commandos.

Drone D19

Comments

[Daniil Konovalenko]

Yes, we already wrote about this ...

[Koval Sergey]

Quote: Daniil Konovalenko

Yes already wrote about it

"Repetition is the Mother of Teaching!" ©

[The eye of the crying]

Thanks to deep automation, the crew will be only 15 sailors

Ok so.

[Arthur 85]

And no one has ever tried to make a boat in the form of a "donut". So that the pipe goes through the body, install screws in it?

[Daniil Konovalenko]

They won't, there are no such fish and animals ... in the form of a donut

[Arthur 85]

Duc, wheels are also not found in nature, or for example, animals do not tend to use fire ... And if a significant part of the water in front of the boat is sucked into this pipe, this will greatly reduce the hydrodynamic resistance ... True, there will be a problem with the sucked fish and logs, but at the hydroelectric power station they are struggling with it ... Squids still swim on jet propulsion.
Perelman seems to have proved that the ideal figure is not a ball, but a torus. Well, this, of course, will be left to the conscience of mathematicians.
And so, if you think about it, a donut boat at great depth will be crushed by water, but a ship with an underwater part in the form of a donut will not be crushed. At the same time, the screws will not fail from one torpedo.

[Daniil Konovalenko]

There have already been round ships, the so-called "popovka", have not justified themselves .... The question is tormenting, but what you wrote is in all seriousness? Or is it technical humor?

[Arthur 85]

Well, as a joke, of course, but in every joke there is a grain of a joke. After writing, I opened a video on YouTube, which shows the operation of a two-circuit turbojet engine. Indeed, in fact, the water, flowing around the ship and falling on the propeller, plays the role of the external circuit of the turbojet engine, only the fan at the back. And there is simply no inner contour ... What if it suddenly appears? At first glance - nonsense, but ... The propeller itself, instead of a paddle wheel, was rejected for a long time.
So I wonder if someone tried to build such a propulsion system. And if nonsense - get it out of your head ...
Round ships, you probably meant floating batteries?

[Daniil Konovalenko]

Round ships, you probably meant floating batteries?

Yes they...

[Knell wardenheart]

I think the unnatural forms from the point of view of acoustics will be one of the reasons that they prefer the traditional "cigar-shaped" one.
All the same, the main quality of submarines is stealth in the complex - that is, not only the stealth of movement and its low noise, but also passive stealth as well.

[Arthur 85]

Yes, I also thought about that, how quiet such a boat would be? But this can be verified, of course, only by experiment.
But here they wrote that modern means of detection are supposedly capable of finding a boat at a depth along the "hump" on the surface. In my opinion, this is nonsense - it does not float in jelly, but if suddenly it is not nonsense, then the engine that sends part of the water into the "internal circuit" will reduce such a "hump".

[Knell wardenheart]

A fair conclusion, perhaps the underwater UAV of the future will take into account such a direct-flow design. But human-inhabited vehicles are vryatli, it would turn out incredibly loud and more than twice as technologically difficult as it would be, because it would turn out to make 2 cases on both sides of such a torus and take into account the pressure from above and the pressure difference in the torus, etc. And without a person on board, this is already a pure UUV, unlike modern ones, even without the possibility of operator control (due to problems with communication at depths) - that is, a pure intelligent drone. While the vskidku comes out very boldly and beyond expediency and sovr. technologies.

[Arthur 85]

Well, yes, if there is no person, you can simply run water into the case and equalize the pressure.
On the other hand, according to Bernoulli, the pressure drops in the flow, and the pressure in the motion inside the torus will be less. The result is a kind of "sleepy shark", which at great depths can exist only in motion.

[Mwg]

But there are animals in the form of a squid with a water cannon

[Falcon5555]

As far as I understand, with a sufficient level of perfection of forms, resistance is determined mainly by the surface area, and not by small features of the form, bio or non bio. Therefore, the lack of felling is a highly controversial thing. In emergency situations, at the port, during maintenance, at the entrance and exit from the port, this will be a big problem - my couch opinion.

[Operator]

Lithium-ion - yesterday, for the future, sodium-ion with a solid electrolyte from borohydrides rule.

[The eye of the crying]

Quote: Operator

Lithium-ion - yesterday, for the future, sodium-ion rule

Lithium-ion is the past, sodium-ion is the future. And in the present what?

[Operator]

Why do you need the present if the submarine is promising?

[The eye of the crying]

And I'm checking to see if you know what you're talking about.

[astepanov]

Quote: Operator

Lithium-ion - yesterday, for the future, sodium-ion with a solid electrolyte from borohydrides rule.

Here it is, a breakthrough in applied electrochemistry! Until now, no one has ever heard of the fact that borohydrides (they are also boranes) can be electrolytes. And the Operator took, and opened the veil of fog. The next step, obviously, is the crew's waste batteries.
For reference: in electrochemical power generation, borohydrides can be used, which, when reacted with water, give hydrogen, which is used (together with oxygen) in the fuel cell. This is considered to be an unacceptably expensive process. And boranes are extremely unstable gases or liquids that do not conduct electricity and cannot be used as a solid electrolyte.

[Operator]

For what I bought, I sell for that: borocarbons are now actively used as a solid electrolyte in experimental sodium-ion batteries (they protect against dendridic breakdown and subsequent ignition).

[astepanov]

Either you have borohydrides, or borocarbons ... You will decide. By the way, "boron carbons" (they are boron carbides) are also not suitable as electrolytes: they are electronic conductors, and electrolytes are ionic conductors.
Don't read Yandex-Zen, it's brain poison!

[Operator]

As a fan of Yandex Zen, you know better.

"A new solid electrolyte for sodium-ion batteries based on borohydrides has also been developed. Swiss scientists have used it to create a completely solid and stable battery with a voltage of three volts, according to a study by Swiss scientists published in the journal Energy & Environmental Science."
https://naukatehnika.com/natrij-ionnyj-akkumulyator.html
naukatehnika.com

[The eye of the crying]

Quote: Operator

A new solid electrolyte for sodium-ion batteries based on borohydrides has also been developed.

Not "based", but with small additions of closoborate to prevent dendrite transformation.

And you shouldn't have read the article to the end.

[rocket757]

Extremely smooth hull shapes, "close to ideal bioforms," ​​and a scaly coating will provide a high level of stealth, while onboard drones will provide additional combat capabilities.

Cover with a masking mucus and add a nose like a sperm whale, then it will float! The tail, at the discretion of the customer!

[Alexey RA]

Quote: rocket757

Cover with a masking slime

Or accelerating - as on the 01710 project (supply of polymer solutions to the boundary layer to reduce hydrodynamic resistance).

Quote: rocket757

The tail, at the discretion of the customer!

[rocket757]

Mother Nature is a treasure trove of everything valuable that a person has not yet appreciated or cannot repeat!

[Undecim]

submarine SMX31E is being developed in France
A tabloid-style headline again. This is not a submarine. This is a submarine concept.
A concept is an innovative idea that contains a creative meaning. The product demonstrating this idea is called a concept product, that is, a model produced by the manufacturer in a single copy, intended for demonstration.

[Lexus]

Viktor ,
for all the futuristic appearance and performance characteristics, it is still worth noting that the concept is based on developments to one degree or another already being implemented, and not on "wet" fantasies. What, unfortunately, cannot be said about promising Russian "products", such as the Kalina and Husky / Laika nuclear submarines, although their declared "unparalleled" innovativeness is more declarative than practical.

[Undecim]

Naturally implemented. Moreover, the French announced that they would develop and build a prototype in ten years.

[Lexus]

Because in developed countries the probability of getting a contract / financing by a firm pointlessly "pointing a finger in the sky" is zero. It is accepted to pay there
for specific proposals, not fantasies and unsubstantiated statements.

[Undecim]

In developed countries, there are also failed projects, moreover, sometimes very expensive. Of the latter - the same Zamvolt and its predecessor, the cruiser CG (X), on the development of which they spent 200 million dollars and was never built.
Or the KEI kinetic interceptor, for which they spent $ 1 billion and terminated the program without achieving anything.
And on the development of a promising military radio communication system for the American army, the Joint Tactical Radio System, they spent 6 dollars, then canceled, then resumed, but so far they have not received anything.
there are many such examples.

[Liam]

Quote: Undecim

cruiser CG (X), on the development of which they spent 200 million dollars and was never built.

Because the project is bad or is it a political decision within the framework of budget cuts after the 2008 crisis?

[Undecim]

The program was closed in 2010, considering that the resulting cruiser is not particularly superior to the existing Arleigh Burke-class.

[Liam]

Quote: Undecim

considering

Washington (CNN) - President Obama on Monday unveiled a $ 3.8 trillion budget for next year.
Proposed budget savings

• Discontinue the program to build a repository for nuclear waste at Yucca Mountain, Nevada. Savings in 2011: $ 197 million

• End oil and gas company tax preferences. Savings in 2011: $ 2.6 billion. Over 10 years: $ 36.5 billion

• End coal subsidies. Savings over 10 years: $ 2.3 billion

• Terminate program to develop an alternative engine program for the Joint Strike Fighter. Savings in 2011: $ 465 million

• Terminate production of C-17 transport. Savings in 2010: $ 2.5 billion

• Cancel the Constellation Systems program intended to return astronauts to the moon by 2020. Savings per year: $ 2.5 billion to $ 5 billion Read more

• Eliminate subsidies to student loan providers and increase the Department of Education's capacity to make loans directly to students. Savings over 10 years: $ 43 billion

• Terminate program to build EP-X manned airborne intelligence, surveillance and reconnaissance aircraft. Savings in 2011: $ 10 million

• End grants to manufacturers of worsted wool. Annual savings: $ 5 million

• Eliminate grant program for inter-city bus security. Annual savings: $ 12 million

• End competitive grant program for local communities to reduce greenhouse gas emissions. Savings in 2011: $ 10 million

• Terminate the Navy's Next Generation Cruiser. Savings in 2011: $ 46 million

• End Corps of Engineers low-priority construction projects. Savings in 2011: $ 214 million

• Terminate Christopher Columbus Fellowship Foundation, aimed at fostering "new discoveries in all fields of endeavor for the benefit of mankind." Savings in 2010: $ 1 million

[Lexus]

In the process of implementing long-term projects, the situation and the customer's requirements that are actualized for it tend to undergo changes. At a certain stage of the work, it is no longer possible to make serious structural changes. As a rule, completed assembly units and run-in technologies are used in the future. The examples you have given are no exception. Also, topics that were previously shelved due to the lag of the "technical matter" from the scientifically grounded "flight of thought" also regularly "pop up". To top it off, the budget of the US Defense Ministry can afford to spend orders of magnitude larger than its Russian counterpart. That is why our problems are much more "mundane" and, in terms of the scale of military development, have a more serious impact on the overall combat effectiveness with a "minus" sign.

[sergo1914]

IMHO, a combat unit of the fleet should not look like a reproductive organ.

[Bersaglieri]

But now it became insulting, like the "jacket" of the Strategic Missile Forces :)

[Bersaglieri]

Hmm. No wonder. "Sail" on the software was needed so that the retractable devices "park" and the "bridge for observers" to be in a floating position. If the perisop is replaced by a "tethered" UAV, then the "sail" is not needed.

[Evgeny Seleznev]

Interesting idea. The robust wheelhouse is small and where the rescue capsule will be housed. And the rest, except for the mover, is no longer fiction.

[Bersaglieri]

"And where can I eat, gentlemen - In the bedroom!" :) High automation, crew of 15-20 people - there is room for a capsule. On the "Lear" there was (she, just, the first, had a "sail" - very symbolic)

[Aag]

Quote: rocket757

Mother Nature is a treasure trove of everything valuable that a person has not yet appreciated or cannot repeat!

Here you are in the previous post, sort of ridiculed this very ... Nature ... Then, they recovered. Nature, Mother,))) it is inexhaustible! Of course in the course, there is (or maybe there was) such a science as bionics, - roughly, borrowing ready-made solutions from Nature (and, at times, stupid copying, without realizing the prowess). Sometimes it helped. In some cases, the copying itself, without realizing the prowess, in others, the study of the processes led to breakthrough discoveries ...

[Grievous]

Kruuuutooooo.

[Jacket in stock]

Chot is slowed down by the French.
The only new thing here is scales, and I read somewhere for a long time that they have already tried it. True on small devices.
And everything else is not just "not fiction", but is already stupid.
The battery is lithium-ion - so the Yapas are already swimming on one.
UAVs are already available.
Well, perhaps even maximum automation with a minimum crew. But somehow I believe that they can do it too.

[Jacket in stock]

It is time for our Malachites / Rubies to tie up with "reciprocating movements" in the development of their own VNEU and throw all their strength into the development of reliable batteries. Otherwise, we will catch up with yesterday.

[Vitaly Lozovich]

Somehow, scientists wondered why the dolphin does not leave behind any streaks of water? Absolutely. They created an underwater vehicle that completely repeated the shape of a dolphin ... it left behind all the eddies of water, like other forms of underwater vehicles. We carried out an analysis, found out for a long time and found out - when a dolphin swims, its skin, sorry, vibrates along with the water that flows around it, because there are no stains. So, when they create a submarine with a surface that vibrates with water ... and this is all so - a hymn.