Coaxial Propeller Drive

Рет қаралды 71,602

2 жыл бұрын

Contra-rotating, also referred to as coaxial contra-rotating, is a technique whereby parts of a mechanism rotate in opposite directions about a common axis, usually to minimise the effect of torque. Examples include some aircraft propellers, resulting in the maximum power of a single piston or turboprop engine to drive two propellers in opposite rotation.
#engineering #animation #3d #auto #engineon #how #automobile #automotive #car #coaxial #halicopter #engineering #mechanical

Пікірлер: 71

@jimparsons6803 2 жыл бұрын

I think that the "Mars Helicopter" uses a similar set up? Liked the clip. My thanks.

@nassernabih7142 2 жыл бұрын

شكرا ، لأنك من الذين يحبون تبسيط المعلومة وتقديمها لكل الناس. بالتوفيق دائما أنا من متابعيك وأتمنى لك السعادة والسلام

@vidyashreedake6527 2 жыл бұрын

Cracked it!

@shivajiraut4565 2 жыл бұрын

Superb 👍🏼

@UshaKhandagale-gp7ze Жыл бұрын

Very well explained.👌

@nasirshaikh6736 2 жыл бұрын

Nice work..👌👌👌👌👌

@ambikagawali4990 2 жыл бұрын

Nice presentation 👍

@pratikgawali6486 2 жыл бұрын

Amazing 👍👍👌👌

@workingsgotanimated 2 жыл бұрын

Mechanism and your explaination .. it rocks.👍

@HaiNguyen-wh6gc Жыл бұрын

I love this

@paradiselost9946 8 ай бұрын

this layout highlights something about contra rotating setups that no-one seems to comprehend. the reaction torque of the rotating input shaft. consider, that yoke holding this assembly has to be attached to something... the plane, the engine... to spin the crankshaft one way against any type of load, means there will be a reaction. if this setup was in a plane, the engine would be at right angles hence it would tend to have a PITCH... or YAW, depending on the engine orientation... in any case, it will be to twist the yoke over around the input(green) shaft, in opposition to any load imposed by the rotating assemblies... the contra rotating prop eliminates the "torque roll" of trying to rotate a single propellor in one direction, it eliminates the "torque roll" of the twisting helix of air induced by a single propellor acting on the plane itself, and it eliminates the gyroscopic precession of the propellor spinning in one direction... but it MAGNIFIES the torque reaction to whatever is producing rotating motion to the input shaft. it now has to fight extra friction, AND rotate two assemblies, or double the mass, double the inertia... double the load...

@nork7045 2 ай бұрын

this can be solved by adding a 4th gear infront of the input gear. It's more friction but if one really wanted no torque reaction it's the way to go

@paradiselost9946 2 ай бұрын

@@nork7045 no it doesnt. you overlook how an engine works. compare a standard radial to a rotary radial, perhaps you will get it. ever fired a gun? same idea. kickback. newtons law of action and reaction. a piston being forced down the bore of a cylinder is no different to a piston staying still and having the cylinder forced off. for the crankshaft to rotate one way means the cylinder, crankcase, the entire engine AND EVERYTHING CONNECTED TO IT will experience an opposing torque... adding a gear doesnt solve this. its still attached to the aircraft. its still part of it.

@nork7045 2 ай бұрын

@@paradiselost9946 Right, you also need to add weights to said gear to ensure it has an equal rotational inertia to the input gear and engine shaft. When the engine spins and accelerates the input gear, an equal acceleration is imparted on the opposing gear, but in the opposite direction, so the forces cancel out given that both have the same rotational inertia.

@STFocus 10 ай бұрын

Good intro👏👏👏

@kriptocugenc9851 2 жыл бұрын

Wow it looks superb, which program is used for making that

@jahangirak47 2 жыл бұрын

Nice! Which software you used for animation?

@I_killed_that_beard_guy 2 жыл бұрын

Beautiful dude

@EngineOn 2 жыл бұрын

Thank you.. 🙂👍🏻

@aldendrew9936 2 жыл бұрын

why power it from the side shaft? couldn't the green gear be an idler with power provided to the blue gear, allowing for a linear installation with the piston/turboshaft powerplant?

@22Tesla Жыл бұрын

It could, but then you wouldn't be able to shift gears between the props like it shows a little later in the video. I guess it depends on what you're using the props for, if they are both angled to provide thrust in one direction, or in opposing directions.

@alexchaudhri2405 Жыл бұрын

Amazing.

@EngineOn Жыл бұрын

Thank you.

@harishdake5267 2 жыл бұрын

👍👍👍👍

@andersonkenfack3439 11 ай бұрын

I'm a new subscriber to your page and I find your animations really ingenious. However, I'd like to know if it's possible to get the 2D version of this animation or the dimensions so that I can try it out too.

@SAGAR-cf1oh 2 жыл бұрын

It's really great video👌

@EngineOn 2 жыл бұрын

Thank you sagar sir.. 👍🏻

@shriramkanawade9247 2 жыл бұрын

Nice work 👍

@EngineOn 2 жыл бұрын

Thank you shriram sir... 👍🏻

@anurajsonawane25 2 жыл бұрын

Best animation

@EngineOn 2 жыл бұрын

Thank you anuraj sir.. 👍🏻

@djflywill6898 2 жыл бұрын

Good job 👌👍

@EngineOn 2 жыл бұрын

Thank you dj flywill 👍🏻

@swaroopraut3921 2 жыл бұрын

लेट पण थेट👌👌👌

@EngineOn 2 жыл бұрын

Thank you swaroop.. 👍🏻

@AmbadiBM 2 жыл бұрын

Which software your are using

@Foxeyify 6 ай бұрын

I'd love to find out if such a drive can function like a cars differential. If one gear is slowed or stopped, can the other gear then increase in speed? I'm not particularly proficient with gears. If this doesn't work in that way, do you know of a drive that functions like that for coaxial propellers?

@Thewaterlord Жыл бұрын

Awesome

@EngineOn Жыл бұрын

Thank you so much.. 👍🏻

@onlycomedy4641 2 жыл бұрын

👍👌

@Savvy07 2 жыл бұрын

I must say this channel is so underrated. You deserves more views.

@EngineOn 2 жыл бұрын

thank you arpit sir. please share the videos and support me.

@adrianemoreira5967 8 ай бұрын

Do you have the link of the project in the simulator to download?

@darshanvaibhav9098 2 жыл бұрын

Superb mechanism bro

@EngineOn 2 жыл бұрын

Thank you brother... 👍🏻

@darshanvaibhav9098 2 жыл бұрын

@@EngineOn the video deserves it bro. Thanks for it

@ghenkhoash2440 Жыл бұрын

What's that gear shifting for?

@yxhankun 8 ай бұрын

why a counter rotating helicopter will fly when the upper blades n lower blades are spinning at the same speeds in different directions?

@teddysuryadikusuma9307 Жыл бұрын

How the coaxial rotor helicopter make a yaw movement, there's must be have a slightly different speed among the rotors??

@moaazjutt4403 Жыл бұрын

In coaxial helicopters where there is no tail rotor to be used for yaw moment, we achieve it by changing pitch of rotors. Pitch of one rotor is increased which increases the drag on that rotor disk hence more opposing force on the body. At the same time the pitch of the other rotor is decreased to maintain height which in turn decreases drag on that body hence less opposing force. This difference in opposing forces on two rotor disks produces yawing moment.

@Patriottoo2 8 ай бұрын

Isn't yaw produced by using vanes at the rear of the heli that are affected by downwash from the rotors?

@altafhossain7793 Жыл бұрын

but it will have a great friction wont it?

@raimundosilva9553 Жыл бұрын

É banhado a óleo

@pritamdas5439 3 ай бұрын

IRL they use ball bearings to deal with that

@francescoquattrocchi2079 4 ай бұрын

Molto bene dove posso trovare il materiale ne devo o Costruire una

@rezoanmahmud5165 Жыл бұрын

wow interesting

@EngineOn Жыл бұрын

Thank you..

@Fatpumpumlovah2 8 ай бұрын

its better to have 2 idler gears vs just 1

@OscarGarcia-oq9sq Жыл бұрын

🥰🥰🥰❤❤

@EngineOn Жыл бұрын

Thanks

@mukbus5935 8 ай бұрын

Coaxial Propeller Drive

@mrjweate Жыл бұрын

How is yaw controlled? (without grinding the gears)

@pritamdas5439 3 ай бұрын

Yaw is controlled by creating a torque imbalance between both rotors. Torque imbalance can be created by changing the pitch (angle) of the blades.

@mrjweate 3 ай бұрын

@@pritamdas5439 I see. Thank you.

@mrjweate 3 ай бұрын

@@pritamdas5439 Another question: I am told (though it may not be true) that the conventional single-rotor helicopters have the benefit of the gyro effect to keep them stable. However, I am also told that two gyros on the same axis spinning in opposite directions will have no gyro effect. Does this mean that coaxial helicopters are less stable?