Q1/ Differential band brakes are shown in figure. Thediameter of the drum is 900 mm. The coefficient offriction between the band and the drum is 0.35 and theangle of embrace is 240°. When a force of 600 N isapplied at the free end of the lever, find foranticlockwise rotation of the drum the torque which canbe applied by the brake. (Note: all dimensions in mm).240°30'1201200-Ps 600 N

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Answered: Q1/ Differential band brakes are shown…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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The flywheel A rotates clockwise under the action of a700 N-m couple. A band break is to be used to stop therotation of A. The coefficient of friction between the beltand the flywheel is 0.40.a.) What is the minimum force applied at the end ofrod B that will stop the flywheel?b.) If the 700 N-m couple acts counterclockwise onA, what is the minimum braking force P?
The 100-mm-diameter pulley shown fits loosely on a 10-mm-diameter shaft for which the coefficient of static friction is Determine the minimum tension T in the belt needed to (a) raise the 100-kg block and (b) lower the block. Assume that no slipping occurs between the belt and pulley and neglect the weight of the pulley Choices: A. TMAX = 1075 N, TMIN = 906 N B. TMAX = 1075 N, TMIN = 690 N
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A shaft turning at a uniform speed carries two uniform discs A and B of masses 10kg and 8kg respectively. The centres of the mass of the discs are each 2.5mm from the axis of rotation. The radii to the centres of mass are at right angles. The shaft is carried in bearings C and D between A and B such that AC = 0.3m, AD = 0.9m and AB = 1.2m. It is required to make dynamic loading on the bearings equal and a minimum for any given shaft speed by adding a mass at a radius 25mm in a plane E. Determine: The distance of the plane E from plane A The dynamic loading on each bearing when the mass in plane E has been attached and the shaft rotates at 200 rev/min. For the bearing loads in the opposite direction determine all the unknown values. For the bearing loads in the same direction, show the diagrams and equations only to use for a possible solution. PS – Use graphical methods to solve the…
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The block brake consists of a pin-connected lever and friction block at B. The coefficient of static friction between the wheel and the lever is μs = 0.3, and a torque of 5 N ⋅ m is applied to the wheel. Determine if the brake can hold thewheel stationary when the force applied to the lever is(a) P = 30 N, (b) P = 70 N.
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Properties: • b1 = 300 mm • b2 = 180 mm • d1 = 250 mm • d2 = 350 mm • f'c = 28 MPa • fy = 414 MPa • eccentricity = 200 mm Determine the following: 1. Location of the plastic centroid measured from the y-axis in mm 2. Depth of the compression block in mm 3. Nominal Axial in kN 4. Moment Capacity in kN-m
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