A simple band brake operated by an air cylinder that applies a force Fof 300 N. The drum radius is 500 mm. The band is 30 mm wide and is lined with a woven material that provides a coefficient of friction of 0.45. (a) What angle of wrap, f, is necessary to obtain a brake torque of 800 N.m? (b) What is the corresponding maximum lining pressure? Note: maximum lining pressure pmax=T, *r*b [Ans.: (a) 235°, (b) 127 kPa] Rotation 500 mm F = 300 N

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A simple band brake operated by an air cylinder that applies a force Fof 300 N. The drum radius is 500 mm. The
band is 30 mm wide and is lined with a woven material that provides a coefficient of friction of 0.45.
(a) What angle of wrap, f, is necessary to obtain a brake torque of 800 N.m?
(b) What is the corresponding maximum lining pressure?
Note: maximum lining pressure pmax=T, *r*b
[Ans.: (a) 235°, (b) 127 kPa]
Rotation
500 mm
F = 300 N
Transcribed Image Text:A simple band brake operated by an air cylinder that applies a force Fof 300 N. The drum radius is 500 mm. The band is 30 mm wide and is lined with a woven material that provides a coefficient of friction of 0.45. (a) What angle of wrap, f, is necessary to obtain a brake torque of 800 N.m? (b) What is the corresponding maximum lining pressure? Note: maximum lining pressure pmax=T, *r*b [Ans.: (a) 235°, (b) 127 kPa] Rotation 500 mm F = 300 N
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