Calculate the speed of the flywheel for my drone motor

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SUMMARY

The discussion centers on calculating the rotational speed of a flywheel attached to a drone motor. The flywheel has a diameter of 18 inches and weighs 2 kg, while the drone motor operates at 5200 RPM and generates 900 grams of thrust. To determine the RPM of the flywheel, one must apply basic gearing calculations, using the formula: Flywheel RPM = 5200 RPM / (Flywheel Diameter / Propeller Drum Diameter). This calculation is essential for optimizing the performance of the drone's propulsion system.

PREREQUISITES
  • Understanding of basic physics principles related to rotational motion
  • Familiarity with gearing ratios and their calculations
  • Knowledge of drone motor specifications and performance metrics
  • Experience with prototype development and testing
NEXT STEPS
  • Research the principles of rotational dynamics and torque
  • Learn about gear ratio calculations and their applications in drone design
  • Explore the impact of flywheel inertia on motor performance
  • Investigate methods for measuring RPM in prototype testing
USEFUL FOR

This discussion is beneficial for drone engineers, hobbyists designing drone propulsion systems, and anyone involved in the optimization of motor-driven flywheel mechanisms.

Tony Singh
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I have drone motor with propellers attached to the top of ring flywheels rim at the edge and the flywheel is 18 inches in diameter and weigh's 2kg.
The drone motor with propellers rpm 5200 and thrust 900 grams.
What rpm will the flywheel be rotating at.
 
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Tony Singh said:
Summary: I working on if we put drone motor with propellers on rim of flywheel

I have drone motor with propellers attached to the top of ring flywheels rim at the edge and the flywheel is 18 inches in diameter and weigh's 2kg.
The drone motor with propellers rpm 5200 and thrust 900 grams.
What rpm will the flywheel be rotating at.
What work have you done so far? What have you found out?
 
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phinds said:
What work have you done so far? What have you found out?
I have patented, building prototype.
 
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Tony Singh said:
I have patented, building prototype.
Which tells us exactly nothing in terms of answering your question, so I ask again: what work have you done on answering your question?
 
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If you've built it, why not simply measure the speed?
 
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Can you provide the patent number/country? I have a hard time believing you can patent an invention you don't understand and can't explain. But at least the application should give us more information about what you are trying to do.
 
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If you're powering it with a 5200RPM motor, it should eventually hit 5200RPM, given enough time. I will admit that I'm having a rather hard time envisioning exactly what you're trying to do here though.
 
This looks like basic gearing calculations. Motor is attached to flywheel, which spins propellers.

Let's say propellers are spun from flywheel's edge with belts or gears and they need to spin at 5200rpms in order to generate 900g lift. Simple enough to calculate ratios of 18" flywheel diameter to propeller's gear/drum diameter. Divide propeller's 5200rpms by ratio and that's what you need to spin flywheel to.

FlywheelRPM = 5200rpms / (FlywheelDiameter/PropDrumDiameter)
 
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