Stopping a frame from falling using gyros (but keeping agility/manoeuverability

[Deano12]

Hello,

I am trying to figure out if gyros could solve my problem i would like to design a frame that will not topple over (rough height 1 metre) it needs to stay upright i.e cant be pushed over (mainly left or right) but can still be moved forward or backwards easily .. if gyros could be a solution how could i figure out what force i could exert left or right without the frame toppling .

Thankyou in advanced with any insite or help

 

[IRstuff]

CMG control is non-trivial; drift requires resetting.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

https://www.youtube.com/watch?v=BKorP55Aqvg

faq731-376 forum1529

 

[gruntguru]

Deano12. As already mentioned above, it isn't "impossible" to topple a gyro, nor does it return to it's former orientation if disturbed. All it does is apply a torque about the third axis if a "toppling" moment is applied about an axis at 90 deg to the axis of rotation. So if you try to roll a vehicle with a vertically oriented gyro, it will try to pitch and vice-versa. Get yourself a bicycle wheel, spin it up the try to re-orient the axle. Or you could look for one of the many You Tube videos on the subject.

A self stabilising vehicle like the BMW in the link would have to have an active stabilising system - perhaps a vertical gyro with the roll orientation of its axis positioned by a motor.

je suis charlie

 

[IRstuff]

If the orientation is ostensibly fixed, i.e., "this side "up", then accelerometers might be a nice complement to a 3-axis or 2-axis gyro subsystem. Gyros are excellent for detecting low angular rates, but the integrated angular position will drift due to integration errors, while accelerometers can measure the absolute angle position without drift.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

https://www.youtube.com/watch?v=BKorP55Aqvg

faq731-376 forum1529