Question

A3. A general aviation airplane has just cleared the runway with a takeoff speed v 100km/h. Each of its freely spinning wheels of radius r 0.25m has a mass of m 20kg, with a radius of gyration about its axle k 0.2m. As seen from the front of the airplane, the wheel precesses at the angular rate ?-90deg/s as the landing strut is folded into the wing about its pivot O. As a result of the gyroscopic action, the supporting member A exerts a torsional moment M on B to prevent the tubular member from rotating in the sleeve A a) Determine the torsional moment M (12 marks) b)Draft the vector diagram showing orientation of the wheel angular the applied torque to B from sleeve A, is in the sense of Mt or M2 (13 marks) momentum and the angular precession and identify whether M, as illustrated in Figure A3. Figure A3.

Answer 1