Thanks for the explanation. In the planetary setup, how can I achieve contra-rotation without fixing any one of the gears? If the input is to the sun, how can I get contra rotating outputs from the planet/carrier and ring without fixing the carrier?
What's the efficiency difference (%) between bevel/planetary gear one and the helical gear coax (the one you also did in the other video)? Also, are these models available online (download)?
Why aren't they using hydraulic systems like a torque converter instead? Using hydraulics instead of mechanicals you could actually alter the difference between the two different rotational speeds for the two different blades
That's an interesting question. I'm not sure of the answer, but cars use fluid couplings (automatic transmisions) and clutches (manual transmisions) because they need to operate at zero speed while the engine is operating. Airplane propellers don't have this requirement, so maybe the loss of energy in a slipping hydraulic coupling is why??
Very good effort explaining a very novel piece of engineering
Thanks for the explanation. In the planetary setup, how can I achieve contra-rotation without fixing any one of the gears? If the input is to the sun, how can I get contra rotating outputs from the planet/carrier and ring without fixing the carrier?
Very helpful visualization Thank You
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Is there a ratio difference with the planetary contra-rotating propeller?
I believe it can vary depending on friction on the sun and the ring.
Which one propeller rotate the right and the left to got maximum faster running.
What's the efficiency difference (%) between bevel/planetary gear one and the helical gear coax (the one you also did in the other video)?
Also, are these models available online (download)?
There could be. But it could also be 1:1 depending on the gear ratios.
Nice
Why aren't they using hydraulic systems like a torque converter instead? Using hydraulics instead of mechanicals you could actually alter the difference between the two different rotational speeds for the two different blades
That's an interesting question. I'm not sure of the answer, but cars use fluid couplings (automatic transmisions) and clutches (manual transmisions) because they need to operate at zero speed while the engine is operating. Airplane propellers don't have this requirement, so maybe the loss of energy in a slipping hydraulic coupling is why??