Technology is advancing at an alarming rate and with more people requiring prosthetic limbs to be able to get on with their daily lives, it’s crucial that every avenue is explored when it comes to creating artificial limbs which are durable and comfortable.

Now, thanks to a team of biomedical engineers at North Carolina State University and the University of North Carolina at Chapel Hill, prosthetic limbs may require less tuning during wear in order for them to remain working correctly.

Re-tuning Prosthesis

People who don’t need prosthesis may not understand how much work goes into maintaining the limb. Every so often, the wearer will be required to visit a prosthetist to “tune” the limb up to keep the patient walking and moving smoothly and comfortably.

This is an essential visit which can be quite time consuming and may even be quite costly as more often than not, adjustments will need to be made.

Juming in Patagonia Argentina. Saltando en la patagonia.

Due to the essential nature of a prosthetic limb, it isn’t a simple case of “one size fits all; much like a custom shoe, the limb must be modelled to the remaining portion of the limb and tuned up to the individual user. This usually takes into account the weight, strength and movement range of the wearer.

The Self-Tuning Algorithm

So how do these self-tuning prosthetic limbs work? It’s pretty simple in theory; a software algorithm is installed into a powered prosthesis and will be able to tune the power which moved the motors in the limb’s joints.

This allows for faster, real-time tuning, making it easier for the wearer to deal with activities which may have required extensive tuning, such as carrying heavy objects which would put more strain on the joints.

Handicapped mountain bike rider downhill track

It also reduces the need to go and see a prosthetist as regularly, as the algorithm will be able to adapt the limb to any changes that may occur within the patient, such as weight loss or gain, and even adapt when the user becomes accustomed to the limb.

So will we be seeing these self-tuning limbs very soon? Associate professor of the biomedical engineering program at North Carolina State University and University of North Carolina says not just yet.

In a statement, she has reported that “We’re not yet able to replicate the prosthetist’s success in achieving those comfortable ‘trunk motions,’ but it’s something we’re working on.”

So, although it’s not happening just yet, it is something that we will hopefully be seeing implemented in the future of prosthetic limbs.

As leading spring manufacturers, we understand how much work and effort go into such life saving devices. That’s why we supply only the finest spring solutions for your needs, whatever they may be. For more information on our products, simply contact our expert team today by calling 028 9083 8605 and we will be more than happy to help you.

Scientists have been looking to nature to help solve engineering problems for years – and now they’ve turned their attention to the subject of helicopter landings.

Helicopters are often used in rescue situations because, compared to planes, they offer better manoeuvrability, can hover, and can land in a more restricted area. However, they still need a flat surface to land on; something that is noticeably hard to find in disaster-struck areas.

Helicopter flying

It can also be difficult to land safely on transport ships at sea, as rough conditions can require split second timing to come down level whilst the deck rocks beneath the pilot. Time it poorly, and the rotor blades could hit the deck, with disastrous consequences.

DARPA, the Defense Advanced Research Projects Agency in the USA, has recently demonstrated a new design to overcome these issues. Developed at the Georgia Institute of Technology, the Robotic Landing Gear takes inspiration from the legs of insects to provide a much more flexible landing.

Instead of the traditional skids, the DARPA prototype features four articulated robotic legs, each equipped with a contact sensor in the foot. On landing, these sensors allow the legs to flex and adapt to the surface, determining the best angle to create a level landing. During flight, these legs can be drawn up against the helicopter’s body to maintain an aerodynamic profile.

According to the researchers, the Robotic Landing Gear should allow helicopters to land on slopes of up to 20 degrees in gradient, more than twice the gradient which is currently possible. In addition, they will be able to land on uneven ground, as demonstrated by the radio-controlled prototype safely landing with two feet on the ground and two on an elevated piece of wood.

The design is currently only in prototype, and it’s not known when it will be available for either military or civilian use. However, it could offer potential not only for safer landings on rough terrain here on Earth, but also on far away planets if adapted for space exploration vehicles.

One potential disadvantage is in the extra weight that the adaptive legs carry compared to traditional skids; in flight, and particularly in a rescue situation, weight is naturally a very important consideration. The full-size Robotic Landing Gear will need to be designed with enough strength to carry the helicopter and its load, yet without adding too much weight of its own.

At European Springs, this is exactly the type of problem we often help our clients with; not only finding the right components from die springs to disc springs but also creating them with the most appropriate materials for the task at hand. Whatever you’re building, whether you’re at prototype stage or the finished product, we’ll be happy to help. For more information, get in touch with us on 028 9083 8605 today.

Engineering UK have recently hired two video bloggers ‘vloggers’ to help inspire the new generation of engineers. After a huge search nationwide, the chosen two will be joining the Tomorrow’s Engineers Week 2015 campaign.

Lily Kate France, a young A Level student who lives in Lancashire, and Nayeeb Chowdhury, a chemical engineering student from a university in London, have been given the challenge of creating engaging YouTube content that gives lots of information on the latest news in science and technology. The aim is to bring the science and technology sector to life across the whole of the UK, so that more young people will be encouraged to join the engineering industry.

Designer modern home office desk with laptop

Video Blogging AKA Vlogging

They are hoping that vlogging will be the thing needed to bridge the generation gap and bring a new dimension that has never been seen before. Lily Kate and Nayeeb will be capturing and highlighting as much engineering in action as possible, so that everyone can see what happens on a daily basis. They will be looking to record behind the scenes footage from well known brands, conduct interviews with up and coming engineers, as well as analyse and review some of the newest innovations. It’s said that they hope to collaborate with well known vloggers, to help get their message across.

With studies showing that more than half of teenagers today now use YouTube to search for information, it’s only natural that vlogging has been chosen as the means to showcase information across the country. YouTube stars such as Zoella are now using it to connect with the whole teenage generation, becoming a role model for a lot of young girls under the age of 16.

The Future?

The people behind Tomorrow’s Engineers Week want to dispel common myths surrounding engineering and inspire young people to seriously consider it as a valid career option. It uses topical issues, celebrities and competitions to reach young people and to get them to listen to what they have to say about STEM (science, technology, engineering and maths) subjects.

If you’re interested in working with these two young vloggers, the Tomorrow’s Engineers Week encourages you to contact them.

site engineers

As leading gas spring manufacturers, it’s only natural that we are passionate about both engineering and technology. We find the STEM industries fascinating, and therefore fully support the hunt to inspire the younger generation.

If you’re looking for any type of spring products, we can help you out. Just contact us on 048 9083 860 and a member of our team will be happy to help.

No, we aren’t predicting the next Terminator film, we’re commenting on the news that has been driving scientific media wild over the past few days; the world’s first 3D printed titanium sternum and rib cage operation has been performed!

Although we agree that it sounds like something straight out of Hollywood, we have been incredibly interested in the process behind creating such a vital structure, as well as the procedure itself.

As we engineer die springs which are designed to function well under environmental stress, we couldn’t help but be a little intrigued as to how this new rib and sternum system was designed to cope with the internal stresses of being inside a living, breathing human; one of the most complexly engineered things on the planet.

Why Use 3D Printing?

No two human bodies are the same. Not even identical twins will have the exact same bone structure and shape, so it can be extremely difficult to adapt such crucial medical implants which are designed to a generic style.

With 3D printing, a unique model can be created using a 3D digital CAD programme, giving engineers and surgeons a fully customisable platform to work with on a patient-to-patient basis.

Titanium Implants

3D printing is not a new concept, especially in prosthetics, with a titanium 3D printed jaw implant being successfully transplanted earlier this year.

Previously, titanium implants were created using plate components which have been known to come loose and cause complications for the person with the implant. The move to 3D printing eradicates this possibility by building the implant up layer by layer, rather than in separate components.

The Procedure

This impressive procedure was performed in Spain at Salamanca University Hospital on a 54 year old patient who had to have certain sections of his chest removed as a result of a tumor.

During the procedure, the 3D printed titanium sternum with specific rib placements was inserted and attached to the patients existing ribs and sternum to mimic the missing section of his chest.

Rib Cage

We bet you’re wondering how long it took the patient to be discharged and begin his recovery after this very delicate operation.  Six months? A Year?

A fortnight. It took the man twelve days to be well enough to be discharged after such an intense surgery and the hospital has reported that he has been recovering well following his innovative operation.

This is just the beginning for the prosthetics industry. Working alongside medical professionals and engineers, who knows what else can be achieved using this ground breaking technique. It may seem very Terminator for the moment, but we’re willing to bet that more and more people will be able to live their lives to the fullest with the help of this new, innovative procedure.

Sadly, we don’t have any titanium jaws or rib cages in stock, but we do have a wide range of spring products that can aid the creation of these life-saving implants. For more information on how our springs can help you and your business, don’t hesitate to contact us on 028 9083 8605 and one of our friendly staff members will be happy to help you.

Space has been involved in many different experiments over the years. From space travel to exploring new galaxies and discovering new information about our solar system and beyond, it’s had quite an influence on some of the most established research ever undertaken.

Our work with space is far from done, however. A new study by the Scottish distillery Ardbeg has decided to use space as their new testing ground to find out how differently whiskey can taste when subjected to microgravity.

How Distillery Works                                          

Before we delve into the study’s findings, we thought it might be a good idea to give you an idea of the distillery process that a whiskey goes through.

Whiskey is a clear, colourless liquid when it is freshly distilled with an extremely harsh taste. Its colouring and other flavours come from the maturing process in which it is stored in barrels which have held other alcoholic drinks; the wood of the barrel has been soaked with various flavours previously.

Whiskey and Ice - iStock_000062180124_Medium

Some of the taste can come from the wood itself, which is where the oaky and charred undertones are derived from.

Space Whiskey

Ardbeg decided to send some of their whiskey into space to test the effects of microgravity on the molecules which affect the flavouring of whiskey and other foods known as terpenes.

The samples of freshly distilled whiskey were left to mature in a tube which contained shavings from the interior of a bourbon barrel and left to mature for 971 days- a period which is a lot shorter than normal whiskey is left to mature for.

Near Space photography - 20km above ground / real photo

The samples were compared to a controlled sample which was left at the distillery which were stored in the same tubes with the same shavings. Both samples were then analysed by gas chromatography, mass spectroscopy and taste.

The Results

In order to give an accurate representation of taste, Ardbeg used their own expert samplers who reported major differences in taste between the samples.

The controlled sample was said to have:

  • A woody aroma which was familiar to the aged Arberg style
  • Hints of cedar
  • Hints of sweet smoke
  • Balsamic vinegar
  • Raisins
  • Treacle toffee
  • Vanilla
  • Burnt oranges.

The expert tasters also noted that “its woody, balsamic flavours shone through, along with a distant fruitiness, some charcoal and antiseptic notes, leading to a long, lingering aftertaste, with flavours of gentle smoke, tar and creamy fudge.”

In comparison, the space sample was said to have the following taste:

  • Antiseptic smoke
  • Rubber
  • Smoked fish
  • A perfumed taste, much like violet or cassis
  • Powerful woody tones
  • A meaty aroma.

The taster commented that “The taste was very focused, with smoked fruits such as prunes, raisins, sugared plums and cherries, earthy peat smoke, peppermint, aniseed, cinnamon and smoked bacon or hickory-smoked ham. The aftertaste is intense and long, with hints of wood, antiseptic lozenges and rubbery smoke”

According to Ardbeg’s director of distilling has put this huge difference in taste down to different extraction of compounds from the wood.

Port - iStock_000044830360_Double

We think we’re going to give space matured whiskey a miss for now, but we hope that the results have paved a path for new research into new flavours of not just whiskey, but food and drink in general.

We don’t supply space matured whiskey here at European Springs Ireland, but we do provide durable spring solutions for a wide range of applications. As leading gas spring manufacturers we know a thing or two about springs, so if you would like to find out more information, contact our team today by calling 028 9083 8605

We’ve got another animal to add to our list of engineering inspirations and in this time, it comes in the form of the adorable (or terrifying, depending on your stance on furry, flying mammals) bat!

Researchers at the University of Strathclyde have developed a new sensor that uses ultrasonic frequencies to detect cracks in important structures, such as gas and oil pipelines, aircraft engines and nuclear plants.

The Transducer and It’s Natural Inspired

The new device, which is called a transducer, mimics the hearing system which is found in bats, as well as dolphins, moths and cockroaches.

Fruit Bat - iStock_000055481814_Medium

It has an extremely flexible structured based on fractals; irregular shapes which repeatedly occur to form a shape which looks inherently more complex than they actually are. This concept can be found in objects such as snowflakes, cauliflowers and ferns.

So Why is the Transducer Unique?

Most man-made transducers are created using regular geometry similar to that of a chess board in its make-up, which restricts its ability to use detect these cracks in structures which perform an extremely important job, and which pose a major safety risk if they are damaged or broken.

This is why the new transducer is such a breakthrough. The technology which is implemented can detect flaws and cracks at a very early stage, which reduces the risk of people being put in harm’s way when flaws and damage aren’t detected.

Bats flying in the sky - iStock_000000741781_Large

The use of varying ultrasonic frequencies not only increases the safety of these structures, but it also saves companies time and money when it comes to carrying out time consuming, essential inspections.

The fact that the transducer developed by the University of Strathclyde can detect these weaknesses a lot earlier than most other transducers means that they can be dealt with quicker, requiring less frequent inspections which may disrupt the service that a company may provide; something which some industries are expressing the need for.

Where Do Bats Come In?

Bats use a high frequency system which is known as echolocation. In essence, it works in a similar way to how sonar works; bouncing frequencies off objects to find out where and what they are.

Bats use this when they are flying to create a sonic image of their surroundings, as well as locate prey. They are able to tell how big an object is, and how far away it is, simply by emitting a high pitched frequency which bounces back to them.

Baby Bat (Pipistrellus pipistrellus)

These frequencies are often too high for the human ear to hear, and each species has a different frequency which they emit. As we have mentioned before, this is also seen elsewhere in the animal kingdom with another well known echolocation user; the dolphin.

This system is what inspired engineers and researchers to create a transducer which uses these sonic waves to create an image of a structure, allowing the user to see exactly where damage has occurred without having to put themselves in danger to check by themselves.

Here at European Springs Ireland, we love how much nature is inspiring some of the most unique and useful items created by engineers and researchers. After all, Mother Nature is probably one of the most successful engineers, it’s just up to us to research and replicate some of the fantastic engineering masterpieces that have been found in nature.

From compression springs to armour inspired by a fish, who knows what nature is going to inspire next; all we can say is… we can’t wait to find out!  If you want to find out more about our nature-inspired spring designs, don’t hesitate to get in touch with our team by calling 028 9083 8605 today.

 

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