DroneDen
New Member
Hello everyone, we are designing a heavy-lift multirotor using RuiH-Tech PX-18 motors (datasheet attached). The copter will operate at low RPM for higher energy efficiency.
We have run into a problem choosing the frame and would like to do it properly rather than just picking something at random, so if anyone can help, our whole team would be very grateful.
What kind of strength/structural calculations should be performed, and do we need to take fatigue (multi-cycle) loads into account? We are thinking of using a 40×1.5 mm duralumin alloy tube, but due to its relatively low Young’s modulus we believe it may be prone to vibrations. In this case, would it be better to consider a carbon-fiber frame instead?
We have run into a problem choosing the frame and would like to do it properly rather than just picking something at random, so if anyone can help, our whole team would be very grateful.
What kind of strength/structural calculations should be performed, and do we need to take fatigue (multi-cycle) loads into account? We are thinking of using a 40×1.5 mm duralumin alloy tube, but due to its relatively low Young’s modulus we believe it may be prone to vibrations. In this case, would it be better to consider a carbon-fiber frame instead?
