Cyclocopter - University of Maryland

[@slevinshafel9395]

2:12 compared with tha actual propelers?

[@simonmultiverse6349]

The CycloCopter needs THREE rotors: one left, one right, and one at the rear. That gives you roll control and pitch control. In particular, it does not need FOUR rotors. You can control the lift on a rotor by EITHER aerofoil speed control OR aerofoil incidence control. That gives you more than one way to control the thrust magnitude and direction of each rotor. Therefore, you can get roll, pitch and yaw control using the combination of rotor speeds and/or pitches. One imagines that the net speed for a rotor (in metres per second) scales with the craft's net flight speed. That will keep the local incidence for each blade within a steady/consistent range.

[@daverotors]

Awesome to see the concept fly! First saw a prototype in Romania a few years back. It was on display at the flight museum in Bucharest. Almost full-sized, but never actually flew. It had two counter-rotating, longitudinal rotors - really baffled me at the time! Google for "Virvas 4000" for some images.

[@sslavi]

Nice, but I would have preferred to hear the sound of rotors instead of the horrible music you have chosen for the sound backgroud.

[@ГеннадийВажнов]

Класс! Новое -это забытое старое, но на основе современных материалов и технологий. Возможно это прорыв! Но... вопрос с габаритами и защитой роторов.

[@stormzel]

Да впечетляет! это не magnus effect случаем ? а то очень напоминает ... Интерстно насколько он шумный по сравнению с квадрокоптером

[@АлександрКакушкин-л9ж]

@@stormzel Нет, на эффект Магнуса это похоже только внешне. Эффект Магнуса это возникновение подъёмной силы на обдуваемом потоком вращающемся цилиндре. Чтобы не ставить на цилиндр двигатель можно [полый] цилиндр разрезать на дольки и эти дольки немного повернуть, чтобы между ними образовались щели. Тогда поток проходя через эти щели будет раскручивать цилиндр. На подъёмную силу щели влияют не очень сильно. Были опыты, и достаточно успешные, по использовании роторов Магнуса вместо крыльев, но у них оказалось слишком большое лобовое сопротивление. В общем несмотря на более сложную конструкцию по аэродинамическому качеству роторы Магнуса всё равно уступали крыльям.

[@mainerockflour3462]

What force creates the lift if each wing is spinning tangentially?

[@भारतीयYouTubeपररूसीब्लॉगररूसी]

google search engine and youtube search engine know how it works

[@UrBaNMCPaladinZ]

@@भारतीयKZbinपररूसीब्लॉगररूसी a bum beng beng wit ya body yo

[@tony22745]

Anybody know where I can buy a rotor off the shelf? Dimensions (say) 1000 mm x 300 mm. Some CAD drawings would get me part of the way.

[@tomcass240]

would it be possible to have the cyclorotors counter-rotate and get rid of the nose rotor?

[@Varue]

I think the nose rotor is to just help with balance

[@htomerif]

Not really sure what the point is other than "because you can". The rotor blades are dead weight through half their cycle and the added structure to control their cycle looks like it weighs more than the rotors themselves. Also, unlike a prop or wing, these rotors are producing energy-consuming drag through half their cycle. Isn't it objectively worse in every way than a variable pitch prop pointing up?

[@libenasukro]

You should read about cyclorotors.

[@htomerif]

@@libenasukro I did but... no. Everything I said still applies. The aerodynamics of them aren't complicated. They're interesting I guess but they don't compete with any other aerodynamic system in any way. The only way you can kind of make them seem more efficient is by comparing them to something not being used for its intended purpose. Compared to a fixed wing they literally at least quadruple the mass you need for wing spars which are the heaviest structural part of a fixed wing aircraft. Compared to a regular swashplate helicopter the're more massive, less efficient and slower. Compared to a gyrocopter they're again more massive and just hugely more complex. The only use I can think of for them is if you don't have the space for a conventional wind turbine they MIGHT be SLIGHTLY more efficient than a regular VAWT. MIGHT. Like I said, interesting. Not useful.

[@libenasukro]

@@htomerif Oh. Okay. What I read claims there are a lot of advantages. Maybe that's only applicable in systems used on marine craft.

[@_JustinCider_]

I agree a little, but that doesn't mean the concept shouldn't be further explored. "Interesting" is where a lot of advancements can be made.

[@htomerif]

@@_JustinCider_ Yeah sure. The magnetron was invented as a compact radar source for allied bombers in WWII and it gave us microwave ovens. Its been a while but I think my biggest gripe with this thing is that they claimed its somehow more efficient or superior to quadcopters or helicopters or fixed wing aircraft. Its a more and more common thing to do in the scientific community: suggesting unrealistic applications to justify a proof of concept device, like all the people making 6dof wire driven "robots". As an application for this I could see a very simplified version of it maybe being applicable to MEMS robotic propulsion? I could also see some of the rigid structures here being replaced with compliant structures. There might be a future in that.

[@carlosalbertosilva3176]

Fantastico, Brilhante, parabéns

[@mikemoye8600]

proof of concept is amazing! but with todays materials(2015-2020) and FMS can it be scaled up to function as a VTOL UAM vehicle?

[@midgetman4206]

a normal heli is probably be the better option, if you want something cool looking than you can go for a co-axial design

[@khalidahmad1317]

Very beautiful

[@ahmedalnemr3282]

Good job keep going please do not stop

[@mileshy]

pitch control always makes things more exciting . . . . nicely done . . . my turn . . . . stay tuned

[@stormzel]

Good Work!!!

[@Freedom2x462]

Making a car fly? The time is about to overdue! I think this is the technology that will do it! The 21st century, Everything seems to be electric even the turbojet

[@louisgag]

Thanks for sharing !

[@ahmdabdallah5811]

What Is Islam? Islam is not just another religion. It is the same message preached by Moses, Jesus and Abraham. Islam literally means ‘submission to God’ and it teaches us to have a direct relationship with God. It reminds us that since God created us, no one should be worshipped except God alone. It also teaches that God is nothing like a human being or like anything that we can imagine. The concept of God is summarized in the Quran as: { “Say, He is God, the One. God, the Absolute. He does not give birth, nor was He born, and there is nothing like Him.”} (Quran 112:1-4) Becoming a Muslim is not turning your back to Jesus. Rather it’s going back to the original teachings of Jesus and obeying him

[@arunfernandez1999]

think this Cyclocopter like a insect becouse it flyes like a insect it has a vibreasion simelar to the insect has the vibration but it has a couter leg movement or any this balensing its darection of flight to have a perfect stabelity (so if we figer out a counter balancing system it might be great to give stability to this Cyclocopter ) and the counter balancing must be 360 degree any darection as we change the flow of thrust .

[@gensyed]

Anybody knows how they work?

[@भारतीयYouTubeपररूसीब्लॉगररूसी]

google search engine and youtube search engine know how it works

[@yansmaryadi1797]

where i can learn it?

[@भारतीयYouTubeपररूसीब्लॉगररूसी]

google search engine and youtube search engine know how it works

[@leekresge1268]

Interesting work. Annoying music.

[@ahmdabdallah5811]

What Is Islam? Islam is not just another religion. It is the same message preached by Moses, Jesus and Abraham. Islam literally means ‘submission to God’ and it teaches us to have a direct relationship with God. It reminds us that since God created us, no one should be worshipped except God alone. It also teaches that God is nothing like a human being or like anything that we can imagine. The concept of God is summarized in the Quran as: { “Say, He is God, the One. God, the Absolute. He does not give birth, nor was He born, and there is nothing like Him.”} (Quran 112:1-4) Becoming a Muslim is not turning your back to Jesus. Rather it’s going back to the original teachings of Jesus and obeying him

[@azertyuiop432]

@@ahmdabdallah5811 Brother, it's absolutely unrelated to the video, don't spam

[@SenSei9991]

And why can not you put this propeller in a casing - like a hairdryer? The flow will be directed in one direction and the thrust will be greater. And then here it blows in all directions equally ..

[@nssherlock4547]

Because it isn't a propeller, it's a controlled pitch rotary wing, thrust is only developed, with in its rotation when the wing has an angle of attack, 6 o'clock, and 12 o'clock make vertical lift,3 and 9 fore and aft. Forward flight will be a combination of say 4 and 10 o'clock in one direction of flight and 8 and 2 o'clock in the opposite. en.wikipedia.org/wiki/Cyclorotor

[@xtraobraatelier2308]

Next, full scale...

[@eeeeeek]

my brain's too dumb for this

[@Collateralcoffee]

That's a thumbs down for the music. Who the fuck selected that?!?!

[@hornypervert3781]

They would be inefficient at higher speeds just like normal helicopters.

[@jeylful]

Disagree - Angular speed?

[@libenasukro]

Oh, I have a great idea! Let's completely drown out the sound of our cutting edge drone with USELESS FUCKING MUSIC.

[@LensSchneider]

음악 시끄러워