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The airfoil is a 3d printed piece weighing 10 grams supported on a metal rod weighing 10 grams. The current setup is controlled using a stepper motor controller. Everything works perfectly fine but I'm able to get only a max Hertz of 3 for my max flow rate with an estimated torque req for this...
Buddy, I know servo motors can "also" solve the purpose. I'm looking for a frequency of 50-100Hz. I don't see anything with that high of a frequency. For ex: example servo motor does not have a high freq in my range. Without a load, its max freq is around 8Hz.
Hey thanks for suggesting, I would prefer a higher frequency/rpm than a higher torque. The mass of the airfoil is very less, and looking at the graph in post#3 lower Torque values can give you a higher rpm and freq. Is that something servo can do?
I did I tried with the motor outside the flow-field as well. It has a torque of 190 N.cm. I saw this chart where it mentions torque vs freq vs rpm. We bought high torque motor to be safer just in case but it makes sense that’s why we are not able to achieve high freq. I have attached the image...
Hi! For my experiment, I am trying to fluctuate (front and back motion) a 3-D printed airfoil using a stepper motor with the capability of 1000RPM (and I use 999 RPM forward and 999 backward) but I'm not getting the desired frequency. This is with a water flow of 50 liters per minute flowing...
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