Print 28 comment(s) - last by wordsworm.. on Aug 11 at 2:07 AM

  (Source: DSME)
New suits are expected to reduce employee injuries and allow for more rapid construction

South Korea's "Big Three" shipbuilders -- Hyundai Heavy Industries Comp., Ltd. (KRX:009540), Daewoo Shipbuilding and Marine Engineering Comp., Ltd. (KRX:042660), and Samsung Heavy Industries Comp., Ltd. (KRX:010140)(KRX:010145) -- are the world's top three shipbuilders, respectively.  
I. South Korea's Shipbuilding "Big Three" Dominate Large Freighter Contracts
The trio is locked not only in fierce competition with each other, but with Chinese and Japanese shipbuilders.  Currently, China's shipbuilding industry cumulatively commands the biggest global market share, but it's been unable to crack the top three -- spots owned solely by South Korea's elite.

Daewoo Okpo-Dong
Located on the small island of Geoje off the southeast coast of South Korea, Okpo-Dong is a hub of industry thanks to the shipyards of Daewoo, the world's second largest shipbuilder.
[Image Source: Google Maps (top) / DSME (bottom)]

Key to South Korea's dominance of shipbuilding revenue has been its unparalleled mastery of building super-large oceanic freight ships.  In a Jan. 2014 interview with The Wall Street Journal, Hyundai Heavy Industries -- the world's largest shipbuilder by revenue -- commented:

Super large containerships are gaining popularity among shipping companies.

Daewoo S&M Eng. (DSME), the second largest shipbuilder, is hoping to bump Hyundai to third with the help of a lucrative contract with top Dutch shipper A.P. Møller–Mærsk A/S (OMX:MAERSK A)(OMX:MAERSK B).  

Daewoo shipyard
The shipyard, packed with bleeding-edge robotics, is manufacturing the world's largest cargo ships, built with a robotically welded steel hull. [Image Source: GCaptain]

Worth $1.9B USD, the contract is a massive moneymaking opportunity for Daewoo S&M Eng., but also represents literally gargantuan engineering challenges.
II. A Gargantuan Challenge
The South Korean shipbuilder has been tasked with producing 400 meters (1,312 ft.) long and 59 meters (194 ft.) wide oceanic freighters that are the current record holders for the biggest cargo ships in the world.  The vessels will be dubbed EEE-Class ("Triple E") and will carry up to 18,340 twenty-foot shipping containers (TEU).  The ships will weigh 55,000 tons unloaded and are capable of carrying 165,000 tons of cargo, crew, ballast, fuel, and provisions (dead weight tonnage).
Driven by 32-megawatt (43,000 hp) ultra-long stroke two-stroke diesel engines they will cruise at a relatively slow, but deliberate speed of 19 knots (35 km/h; 22 mph) which will allow them to cut fuel consumption by 37 percent.

Maersk Triple-E Class ship
Møller–Mærsk A/S has ordered twenty of the record-setting freight ships, half are currently in service providing heavy hauling between Asia and Europe. [Image Source: Wikimedia Commons]

Daewoo S&M Eng. is building the massive craft primarily at its shipyard in Okpo-dong, located on Geoje Island off South Korea's southeast coast.  The company has a video discussing some of the facility’s cutting edge innovations, which allow construction of such massive vessels.

After producing the first ten EEE-class vessels, as promised, Daewoo S&M Eng. is currently in the process of delivering its second set of ten vessels (for another $1.9B USD).  In an effort to reduce costs, it's testing out an exoskeleton designed in-house for use at its shipyard in Okpo-dong, South Korea which will help its employees lift and carry very heavy loads without risking injury or requiring less agile traditional heavy lifters.

Ship profile
The "Triple-E" class cargo liner is among the largest craft ever to travel the seas.
[Image Source: Wikimedia Commons]

Daewoo, Samsung, and Hyundai's shipbuilding wings are already setting a standard for the use of bleeding edge robotics in manufacturing.  According to a U.S. Navy study they rely on robots for over two thirds of the welding, as well as much of the cutting, grinding steel, and polishing.  But keeping the robotic assembly components fed with material requires a lot of heavy lifting and transfer of large metal components.
III. A Helping Hand
That's where the Daewoo S&M Eng. is having the RoboShipbuilder step in.  Currently the exosuit is being used by employees and can lift up to 30 kg (66.1 lb.).  That's enough to lift a variety of smaller steel components, and precisely position them for the most difficult welding tasks.

Daewoo SME
A Daewoo S&M Eng. employee poses using the crane extension of the RoboShipbuilder exosuit.
[Image Source: DSME]

The suit uses a mixture of hydraulics and electric servomotors to carry the load.  Workers start by standing on footpads and then strap the exoskeleton legs frame to their legs, followed by a backpack-like section and arm frame.  The exoskeleton accommodates workers of heights between 1.6 and 1.85 meters (5'3" to 6'1").

Daewoo Exosuit
An employee tests the Daewoo exosuit. [Image Source: DSME]

The exoskeleton is made of a complex mix of carbon fiber, aluminum alloys, and steel alloys.  It weighs 28 kg (61.7 lb.) and is capable of 3 hours of operation via lithium-ion batteries that accompany the control circuitry in the backpack of the suit.  The suit is capable of walking at a "normal" human pace while carrying the 30 kg objects.
Daewoo S&M Eng. first showed off its "Iron Man" technology in April 2013.

Daewoo SME iron man
DSME first showed off its "Iron Man" suit technology in April 2013. [Image Source: DSME]

Lead engineer Gilwhoan Chu of Daewoo S&M Eng.'s research and development wing is spearheading the project.  His team has produced several prototypes that have reportedly received positive reviews from the shipyard workers at the Okpo-dong docks.  He told New Scientist in an interview that the only complaints were that employees wanted to move faster and be able to lift heavier weights.

The DSME exosuit is extensible with a crane that helps lift the load. [Image Source: Yonhap News]

To that end he's working on a new set of prototype RoboShipbuilder suits that will be capable of 100 kilograms (220.5 lb).  That's roughly the weight of a standard 2-meter steel support beam.  He said the project leverages more than a decade of robotics expertise of his team at Daewoo S&M Eng., experience which has helped his firm win contracts for giant freighters and become the world's second largest shipbuilder.
IV. A New Paradigm?
One interesting feature of the RoboShipbuilder suit is its use of plugins/extensions, which modify its motion.  One example Mr. Chu gives is a crane-type extension capable of holding components in place high above the user's head after the basic lift.
Both its South Korean rivals and U.S. manufacturers such as the Boeing Comp. (BA) are likely keenly following Daewoo's progress with the exosuit, as will the U.S. military which has issued contracts to build and test similar suits for purposes such as carrying heavy crates of ammo short distances on the battlefield.  
One prototype by Raytheon Comp. (RTN) dubbed the "SARCOS Suit" is capable of lifting at least 91 kg (200 lb).  But in some ways Daewoo's design is more advanced as the SARCOS suit in its last demonstrated form only had a sixth the battery life (half an hour of juice), moved somewhat slower, and was less extensible than the RoboShipbuilder.  The SARCOS suit also weighs more than twice as much -- 57 kg (125 lb).
Currently Boeing is funding a robotics limbs project of its own -- the Massachusetts Institute of Technology's (MIT) Supernumerary Robotic Limbs (SRLs) project.  The SRL project is led by Professor H. Harry Asada, the principle investigator of MIT's d'Arbeloff Lab.  It differs slightly from Daewoo's RoboShipbuilder and most other exosuits in that it gives the worker a second set of limbs.
Boeing Example
A worker uses the limbs to prop up an airframe during aircraft construction.
[Image Source: d'Arbeloff Lab]

Boeing last month revealed details of its plans to use robots to build much of the fuselage of the Boeing 777-8X/9X, an under-development design which will be the longest, largest, and most fuel-efficient passenger planes in the world, according to Boeing.  In a comment to reporters Boeing described:

[The craft] will be built using automated, guided robots that will fasten the panels of the fuselage together, drilling and filling the more than approximately 60,000 fasteners that are today installed by hand.

[The robotic build system] will be implemented first on today’s 777 [and after validation on that craft] is expected to be baseline to 777X fuselage production.

An exosuit like Daewoo S&M Eng.'s would be the perfect complement to such a system, filling in with agile superhuman lifting in cases where the robotic system needs assistance or restocking of heavy material components.

Sources: DSME [1], [2], New Scientist

Comments     Threshold

This article is over a month old, voting and posting comments is disabled

Much use such wow
By FaceMaster on 8/5/2014 1:03:51 AM , Rating: 4
It weighs 28 kg and can lift up to 30 kg. Yayyyyyy

RE: Much use such wow
By Milliamp on 8/5/2014 1:32:24 AM , Rating: 2
It's probably several times less useful and more expensive than just a machine without a person in it that can be controlled to lift and move objects. Exosuits are over rated because it's so hard to exactly align pivot points and range of motion with the human under it.

Extremely powerful exosuits likely have potential to injure a person too if they turn their knee as the suit bends he joint or something.

RE: Much use such wow
By Strunf on 8/5/2014 7:26:27 AM , Rating: 2
The weights is supported by the robotic legs so it's not on your back, and 30kg may not be much but you also have to see the long term benefits of this suit, I know many workers move weights around even when they are over what is the maximum recommended, this in turn may lead to health problems and cost a lot of money to the company and society.

RE: Much use such wow
By FITCamaro on 8/5/2014 7:56:40 AM , Rating: 3
65 pounds is not that much. You are not going to injure yourself from properly carrying that amount of weight. Assuming you're strong enough to lift it. Seem to me this is more about helping weak people do the jobs of people who are stronger but possibly less qualified(technically not physically) to do the work.

Seems to me they need to hit the gym more than spending millions developing exo-suits to do the work for them. I'm no jock myself but I can still lift 65 pounds without injuring myself.

RE: Much use such wow
By Reclaimer77 on 8/5/2014 8:34:50 AM , Rating: 1
"Hit the gym"?

lol the average South Korean spends all his free time on a computer. Video games are it's national pastime. And StarCraft is their national sport.

RE: Much use such wow
By ShaolinSoccer on 8/5/2014 10:50:37 AM , Rating: 2
If that were true, wouldn't there be an obesity epidemic over there?

lol the average South Korean spends all his free time on a computer. Video games are it's national pastime. And StarCraft is their national sport.

RE: Much use such wow
By Reclaimer77 on 8/5/14, Rating: -1
RE: Much use such wow
By thesaxophonist on 8/5/2014 11:16:46 AM , Rating: 2
Reclaimer has gotten to the point that he uses Huffington Post as a "source".

RE: Much use such wow
By Reclaimer77 on 8/5/14, Rating: 0
RE: Much use such wow
By thesaxophonist on 8/5/2014 3:23:26 PM , Rating: 3
I wasn't debating the issue-that's totally true. I just saw an opportunity to take a dig at Huffington Post. :)

RE: Much use such wow
By Reclaimer77 on 8/5/2014 3:52:43 PM , Rating: 1
lol well by all means, dig away. I have no love for that rag.

RE: Much use such wow
By Masospaghetti on 8/5/2014 10:51:56 AM , Rating: 1
Just when I think you couldn't be more ignorant, you manage to outdo yourself. You really should get out of your basement every once in a while.

RE: Much use such wow
By Reclaimer77 on 8/5/2014 10:57:25 AM , Rating: 2
Oh come on it was funny and you know it. And partly true.

The Government of South Korea has imposed a midnight gaming ban due to MASSIVE nation-wide video game "addiction".

Go look it up as$hole, this isn't some Reclaimer just made up to be "ignorant".

This makes YOU ignorant. How's that feel? Now STFU.

So yeah I'm sorry but this isn't a culture that's know for hitting the gym and getting "swolled up".

RE: Much use such wow
By nick2000 on 8/5/2014 9:08:13 AM , Rating: 5
Spend your day lifting 65 pounds in all kinds of awkward positions (because you need to position the part) and it builds up. Sure you can do it but there are consequences.
It is more about repetitive stress than anything else.

RE: Much use such wow
By ClownPuncher on 8/5/2014 10:26:08 AM , Rating: 4
Lifting 65 pounds is fine, lifting it hundreds of times during a 10hr shift is less fine.

RE: Much use such wow
By vortmax2 on 8/5/2014 10:42:05 AM , Rating: 2
Plus, holding it in place for a time while welding makes it even more straining.

RE: Much use such wow
By AlvinCool on 8/5/2014 10:56:31 AM , Rating: 5
it's not about being able to lift 65 lbs. It's about being able to lift and "manipulate" 65 pounds. It's not the same thing when you have to put that piece at an angle and hold it there for a time period.

RE: Much use such wow
By Belegost on 8/5/2014 11:16:19 AM , Rating: 2
Looking at the design it seems like the most useful aspect is that it will hold the weight while leaving the user's hands free to do other things - for instance a operate a welder.

The real value I see here is in being able to have the machine hold the part in position, and user do the welds (or place bolts, whatever), instead of needing an assistant to keep the piece held up. This of course lowers costs by cutting the number of people needed, but it also speeds up production because ships involve a lot of tight spaces and having two people trying to work in a tight area is not efficient, and mildly hazardous when welding.

RE: Much use such wow
By Apone on 8/5/2014 12:29:16 PM , Rating: 2
@ FITCamaro

Seem to me this is more about helping weak people do the jobs of people who are stronger but possibly less qualified(technically not physically) to do the work.

Seems to me they need to hit the gym more than spending millions developing exo-suits to do the work for them. I'm no jock myself but I can still lift 65 pounds without injuring myself.

I don't think it's so much needing to hit the gym but more of endurance and reducing the probability of work-related injuries. I can imagine it would get exhausting having to lift 60+ lbs of metal pipes, etc. all day, everyday (which no amount of gym lifting would completely remedy). The chance of injury sustained from neglect (due to fatigue) would also be reduced.

RE: Much use such wow
By flyingpants1 on 8/7/2014 11:17:53 PM , Rating: 2
Are you drunk or something?

RE: Much use such wow
By wordsworm on 8/11/2014 2:07:48 AM , Rating: 2
He's not drunk. He's a Republican.

RE: Much use such wow
By Jeffk464 on 8/7/2014 9:57:27 PM , Rating: 2
It seems like it would be cheaper to pump the ship workers full of steroids.

By geekman1024 on 8/5/2014 12:27:23 AM , Rating: 2
When talking about exosuit, I was expecting at least Power Loader type of construction. Stop comparing these almost naked thingie to the Iron Man suit, please.

Good news
By StinkyWhizzleTeeth on 8/5/2014 6:31:39 AM , Rating: 2
My country (U.S.) is #1 riveting robots.

European Countries
By Kharadmon on 8/5/2014 9:13:52 AM , Rating: 2
with the help of a lucrative contract with top Dutch shipper A.P. Møller–Mærsk A/S

Fairly sure that Mærsk is Danish, not Dutch.

By ninjaquick on 8/5/2014 12:07:59 PM , Rating: 2
The DAPS looks like the real hero of this tale... System to automatically detect and then deter pirates? Now that sounds useful.

By Joz on 8/5/2014 7:42:46 PM , Rating: 2
It is a miniature, personal crane, essentially, with very limited range...

By KendoTek on 8/9/2014 2:47:06 PM , Rating: 2
I for one welcome my cyborg overlords! But seriously, in spite of technical limitations (weight capacity, battery life, etc), these appear to be quite useful tools. These will save many backs and therefore save a lot of money in the long run.

"Well, there may be a reason why they call them 'Mac' trucks! Windows machines will not be trucks." -- Microsoft CEO Steve Ballmer

Copyright 2016 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki