Hi!
For my masters thesis i have to develop a scaled helicopter test bench. The helicopter I use is a RC helicopter. It gets it's power from a power supply which produces a DC current. After the supply there's an electronic speed controller, which uses PWM to produce a current that produces a specific rotor speed.
The problem I now have is that when i increase the angle of attack of the helicopter blades, so the load on the motor. The rotor speed decreases. I have to find a way to keep the correct rotor speed, but i have no clue how to do that.
extra information: the esc is coupled to a servo system which should keep the rotor speed constant. But this servo obviously fails.
Does anyone have an idea what I could do?
thanks in advance
Cathal
For my masters thesis i have to develop a scaled helicopter test bench. The helicopter I use is a RC helicopter. It gets it's power from a power supply which produces a DC current. After the supply there's an electronic speed controller, which uses PWM to produce a current that produces a specific rotor speed.
The problem I now have is that when i increase the angle of attack of the helicopter blades, so the load on the motor. The rotor speed decreases. I have to find a way to keep the correct rotor speed, but i have no clue how to do that.
extra information: the esc is coupled to a servo system which should keep the rotor speed constant. But this servo obviously fails.
Does anyone have an idea what I could do?
thanks in advance
Cathal