+1 vote
in Machine Dynamics by (34.3k points)
For the given figure, the brake can sustain a torque of 350 N-m and coefficient of friction between the band and drum is 0.3, find OA for self locking condition during clockwise rotation.

(a) 114mm

(b) 130mm

(c) 57mm

(d) 88mm

This question was addressed to me in a national level competition.

The question is from Differential Band Brake topic in division Brakes and Dynamometers of Machine Dynamics

1 Answer

0 votes
by (38.6k points)
The correct choice is (a) 114mm

The explanation: For self locking condition, P=0

therefore T1x35 = T2xOA

OA = 114mm.

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