A countershaft carrying two V-belt pulleys is shown in the figure. Pulley A receives power from a motor through a belt with the belt tensions shown. The power is transmitted through the shaft and delivered to the belt on pulley B. Assume the belt tension on the loose side at B is 15 percent of the tension on the tight side. Given B(d_B) = 440 mm, T(A_1) = 600 N, and T(A_2) = 4002 N. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. At the point of maximum bending moment, determine the bending stress and the torsional shear stress. The bending stress at the point of maximum bending moment is ______ MPa. The torsional shear stress at the point of maximum bending moment is ______ MPa.
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Let's call the distance between the bearings L. The forces acting on the shaft are T(A1), T(A2), T(B1), and T(B2). We can find T(B1) using the given information that the tension on the loose side at B is 15% of the tension on the tight side: T(B2) = 0.15 * Show more…
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A pulley is driven by a flat belt, the angle of lap being 120 . The belt is 100 mm wide by 6 mm thick and density is 1000 kg/m . If the coefficient of friction is 0.3 and the maximum stress in the belt is not to exceed 1.5 MPa, calculate: 4.1. The speed of the belt in m/s using the information related to the driving pulley. 4.2. The centrifugal tension and the tension on the first tight side of the belt T1. 4.3. The greatest power the belt can transmit.
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