Self balancing bicycle prototype using flywheel(reaction wheel)

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Discussion Overview

The discussion centers around a project involving a self-balancing bicycle prototype that utilizes a flywheel for stabilization. Participants are exploring the calculations necessary for selecting appropriate motors and flywheel specifications, as well as the potential need for a gearbox.

Discussion Character

  • Exploratory, Technical explanation, Homework-related

Main Points Raised

  • One participant describes their project and requests assistance with torque calculations for the flywheel motor, using the formula T=J*alpha, where J is the moment of inertia and alpha is the angular acceleration.
  • The participant provides assumed values for the overall mass of the prototype, radius of the flywheel, mass of the flywheel, radius of the driving wheel, and maximum permissible tilting angle.
  • There is a request for help in selecting specifications for a 12V DC flywheel motor and driving motor, including rpm and torque, as well as flywheel specifications such as radius and mass.
  • The participant also inquires about the necessity of a gearbox and its potential ratio.
  • Subsequent posts indicate issues with the provided links to video resources, with participants unable to access them.

Areas of Agreement / Disagreement

Participants have not reached a consensus, as the initial request for assistance remains unanswered and there are technical issues with the shared links.

Contextual Notes

The discussion lacks detailed assumptions regarding the dynamics of the self-balancing mechanism and the specific requirements for motor selection, which may affect the calculations and recommendations.

ykhoody
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Hello everybody,
Well I'm a level 4 mechatronics students from Mauritius and doing my project on a self balanced bicycle which uses a flywheel to achieve this.A better view of it can be seen on:

OR EVEN ON:
http://www.youtube.com/watch?v=0312BNqIBFI&feature=related
http://www.youtube.com/watch?v=AvGUuuq7DOE&feature=related

During the past 3 weeks,I've been struggling on calculation of torque(flywheel motor) and I'm stuck.
I have been using the formula T=J*alpha,
where J=moment of inertia and alpha=angular acceleration.

I have assumed overall mass of prototype to be around 2.5 kg,radius of flywheel=5 cm,mass of flywheel=0.5kg,radius of driving wheel=5 cm,max permissible tilting angle=30 degrees.

Could you please help me in selecting my 12V DC motors:flywheel motor(rpm,torque)
Driving motor(rpm,torque)
and flywheel specifications(radius and mass)
and finally if gear box(reduction gear) is needed,its ratio??
Thanking you all in advance.
Best regards
 
Last edited by a moderator:
Engineering news on Phys.org
Your links don't work.
 



Can't find the other one
 
Last edited by a moderator:
sorry...do not know how it changes...maybe by default...need to remove url...just edited it..
 

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