- #1
RuhigBrauner
- 6
- 1
Hi,
I would like to ask you If you could help me with a (I guess quite simple) problem I have to solve. To put it into context: I want to program a helicopter for a videogame with a physical model. So the player controlls throttle, pitch, ... and the game calculates the correct response.
A helicopter basicly generates lift by spinning the rotor. So you have a acceleration vector at the rotors pointing up and the accelecation vector from the graviting pointing down.
Now when the rotor tilts to generate lift forward or to the side, the vector changes direction and does not align with the gravity vector. That's why the helicopter tilts as well.
The question I have is how can I calculate exactly how much a helicopter rotates when the rotor tilts.
I guess what you need is where the two accelerations take place (center of mass for gravity, rotors for lift) and where theyare pointing.
The mass is needed as well but I think what is also needed is the distribution of the mass. A object where 90% of the mass is near the center would rotate faster than
an object where the mass is mostly located away from the center.
Do you have an idea, how to solve this problem or what kind of model would work well here?
Btw. here is a simple graphic showing the problem:
https://studi.f4.htw-berlin.de/~s0539750/LiftMass.png
Thanks in advance! :)
I would like to ask you If you could help me with a (I guess quite simple) problem I have to solve. To put it into context: I want to program a helicopter for a videogame with a physical model. So the player controlls throttle, pitch, ... and the game calculates the correct response.
A helicopter basicly generates lift by spinning the rotor. So you have a acceleration vector at the rotors pointing up and the accelecation vector from the graviting pointing down.
Now when the rotor tilts to generate lift forward or to the side, the vector changes direction and does not align with the gravity vector. That's why the helicopter tilts as well.
The question I have is how can I calculate exactly how much a helicopter rotates when the rotor tilts.
I guess what you need is where the two accelerations take place (center of mass for gravity, rotors for lift) and where theyare pointing.
The mass is needed as well but I think what is also needed is the distribution of the mass. A object where 90% of the mass is near the center would rotate faster than
an object where the mass is mostly located away from the center.
Do you have an idea, how to solve this problem or what kind of model would work well here?
Btw. here is a simple graphic showing the problem:
https://studi.f4.htw-berlin.de/~s0539750/LiftMass.png
Thanks in advance! :)
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