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Gyro Monorails and gyro cars?
With Gyro Monorails and gyro cars, the usual approach is to follow Louis Brennans approach where you have two counter-rotating gyros whose axis of rotation are perpendicular to the axis of support by the wheels and are fixed to the frame side to side so that attempts to tilt the frame would try to tilt the gyros resulting in a precession where the gyros tilt forwards and backwards, the two gyros being geared together so their precession are the same but opposite in direction.
But why allow the gyros that freedom of movement, why not just fix their axis of rotation to the frame, the unwanted forces of precession would just become a bending moment on the frame?
Yahoo answers is really messed up with the question asking stuff.
Bicycles, motorcycles and unicycles can bank without gymballing so I don't buy the no banking argument. Besides the rotations allowed for the gymballing are the precession translations caused by the torque which would bank the vehicle so you have an erroneous assumption of precession Rowlfe
4 Answers
- rowlfeLv 77 years ago
If you do not gimble the gyros, you can not bank into a turn! Think about it... If the gyros were locked to the frame, how would you make a turn without sliding sideways? You are essentially riding a bicycle and using the gyro to hold you upright. And as with a bicycle or motorcycle, you must lean to go around a corner. And THAT is why no commercial monorails use gyros. Instead they use an upside down U shape channel with wheels on top and on both sides of a typical I beam. The next big thing is to replace the top and side wheels with liner motors and use a magnetic field to levitate the train and to keep it centered on the rail, cutting rolling friction to almost nothing, leaving only air friction to contend with.
