It is a dream of mankind to fly like a bird. Birds are very agile. They fly, not with rotating components, so they fly only by flapping their wings. So we looked at the birds, and we tried to make a model that is powerful, ultralight, and it must have excellent aerodynamic qualities that would fly by its own and only by flapping its wings.
San ljudske rase je da leti kao ptica. Ptice su veoma pokretne. Lete bez komponenti koje rotiraju, samo mašući krilima. Posmatrali smo ptice, i pokušali da napravimo model koji je snažan, a veoma lak, i vrlo aerodinamičan koji bi leteo sam od sebe samo mašući krilima.
So what would be better than to use the herring gull, in its freedom, circling and swooping over the sea, and to use this as a role model? So we bring a team together. There are generalists and also specialists in the field of aerodynamics, in the field of building gliders. And the task was to build an ultralight indoor-flying model that is able to fly over your heads. So be careful later on.
Dakle, šta bi bilo bolje kao model nego galeb, koji slobodno leti nad morem i u njega zaranja? Okupili smo tim. Šire i uže specijalizovanih stručnjaka u oblasti aerodinamike i izgradnje jedrilica. I zadatak je bio da se napravi vrlo lak, leteći model za unutrašnji prostor koji može da leti iznad nas. Tako da, budite oprezni kasnije.
(Laughter)
Zadatak je bio
And this was one issue: to build it that lightweight that no one would be hurt if it fell down.
napraviti ga veoma lakog kako niko ne bi bio povređen ukoliko se sruši.
So why do we do all this? We are a company in the field of automation, and we'd like to do very lightweight structures because that's energy efficient, and we'd like to learn more about pneumatics and air flow phenomena.
Dakle, zašto radimo sve ovo? Mi smo kompanija koja se bavi automatikom, i voleli bismo da pravimo lake strukture zbog uštede energije. I voleli bismo da naučimo više o pneumaticima i fenomenu protoka vazduha,
So I now would like you to put your seat belts on and put your hats on. So maybe we'll try it once -- to fly a SmartBird.
Sada bih voleo da se vežete i stavite svoje kape. Pa da pokušamo da poletimo SmartBirdom.
Thank you.
Hvala.
(Applause)
(Aplauz)
(Cheers)
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So we can now look at the SmartBird. So here is one without a skin. We have a wingspan of about two meters. The length is one meter and six, and the weight is only 450 grams. And it is all out of carbon fiber. In the middle we have a motor, and we also have a gear in it, and we use the gear to transfer the circulation of the motor. So within the motor, we have three Hall sensors, so we know exactly where the wing is. And if we now beat up and down --
Sada možemo pogledati SmartBird. Ovde je jedna bez kože. Raspon krila je oko dva metra. Dužina metar i šezdeset. težina je samo 450 grama. I cela je od karbonskih vlakana. U sredini je motor, koji ima menjač. Menjač koristimo za prenos cirkulacije motora. U motoru imamo tri "Hol" senzore, tako da tačno znamo gde je krilo. I ako sad mašemo gore dole
(Mechanical sounds)
možemo
We have the possibility to fly like a bird. So if you go down, you have the large area of propulsion, and if you go up, the wings are not that large, and it is easier to get up.
da letimo kao ptica. Tako da, ako idete dole, imate veliku površinu za pogon. A ako idete gore krila nisu toliko velika, i lakše je podići se.
So, the next thing we did, or the challenges we did, was to coordinate this movement. We have to turn it, go up and go down. We have a split wing. With the split wing, we get the lift at the upper wing, and we get the propulsion at the lower wing. Also, we see how we measure the aerodynamic efficiency. We had knowledge about the electromechanical efficiency and then we can calculate the aerodynamic efficiency. So therefore, it rises up from passive torsion to active torsion, from 30 percent up to 80 percent.
Naredna stvar koju smo napravili, ili, naredni izazov koji smo prihvatili, bilo je da koordiniramo ove pokrete. Moramo da je okrenemo, idemo gore i dole. Imamo podeljeno krilo. Njime stvaramo pritisak na gornjem krilu, i imamo pogon na donjem krilu. Takođe, možemo da vidimo kako da izmerimo aerodinamičnu efikasnost. Znali smo za aerodinamičnu efikasnost i mogli smo da je izračunamo. Dakle, penje se od pasivne ka aktivnoj torziji, od 30 odsto do 80 odsto.
Next thing we have to do, we have to control and regulate the whole structure. Only if you control and regulate it, you will get that aerodynamic efficiency. So the overall consumption of energy is about 25 watts at takeoff and 16 to 18 watts in flight.
Sledeća stvar koju moramo da uradimo kako bismo kontrolisali i regulisali celu strukturu. Samo ukoliko je kontrolišete i regulišete, postići ćete aerodinamičnu efikasnost. Tako je ukupna potrošnja energije oko 25 vati pri uzletanju i od 16 do 18 vati u toku leta.
Thank you.
Hvala.
(Applause)
(Aplauz)
Bruno Giussani: Markus, we should fly it once more.
Bruno Đusani: Markus, mislim da bi trebalo da to ponovimo.
Markus Fischer: Yeah, sure.
Markus Fišer: Da, sigurno.
(Audience) Yeah!
(Smeh)
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