A band brake embraces a 500 mm diameter drum with an angle of lap of 270° and produces a braking torque of 200 Nm. The coefficient of friction is 0.2. One end of the band is attached to the fulcrum pin and the other end is attached to a pin B. Which of the following is the tension in the slack side of the band? 75 -450 T₂ F 270⁰ O 280 N O 510N O 255 N 0445N All dimensions in mm.

A band brake embraces a 500 mm diameter drum with an angle of lap of 270° and produces a braking torque of 200 Nm. The coefficient of friction is 0.2. One end of the band is attached to the fulcrum pin and the other end is attached to a pin B. Which of the following is the tension in the slack side of the band? 75 -450 T₂ F 270⁰ O 280 N O 510N O 255 N 0445N All dimensions in mm.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Topic: Brakes
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The width of the simple band brake shown in the figure is 30 mm. The coefficient of friction between the brake and the drum surface is 0.20. Determine the braking torque and thickness of the band if the tensile stress is not to exceed 65 N/mm2.
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The static coefficient of friction between the brake pad and the brake drum of Fig s0.40. When a force of 350 N is being applied to the brake arm, determine the couple required to initiate rotation of the drum if the di- rection of rotation is (a) clockwise and (b) counterclockwise. 350 N 300 mm -850 mm- 300 mm 200 mm
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Q1/ Figure shows a single block brake applied to a drum by a lever AB which is pivoted at a fixed point A. The radius of the drum is 160 mm. The coefficient of friction at the brake lining is 0.3 and the angle of contact is 40°. If the drum rotates anticlockwise, find the braking torque due to the applied force of 600 N at B. 14-200-> mm 600 N