The rotation in degrees of a shaft, 800 mm long subjected to a torque of 80 N-m, 10 mm in radius and shear modulus of 85 GPa is

Problem 2. A 300-mm diameter solid disk is to be used as a flywheel in a machine to reduce speed fluctuations. If the disk material has yield strength S Y =720 MPa, density p=7000 kg/m^ 3 . and Poisson's ratio J = 0.2 ^ c , find the maximum allowable rotational speed (in rpm) for a safety factor of 1. a) Solve using the MSST. b) Solve assuming that the disk is mad of cast iron having Sut = 207MPa , Fuc = 780MPa, p = 7000 kg/m³, and Poisson's ratio v r = 0.26 , Use Coulomb-Mohr theory.

A shaft has a diameter of 45.08 mm and is an interference fit with a sleeve 60 mm outer, 45 mm inner 45 mm inner diameters and 80 mm long. Calculate: i. The force needed to slide the sleeve on the shaft, and ii. the change in radius of the shaft and sleeve at the inside. Assume the elastic properties for both are the same with Young's modulus of elasticity as 200 GPa and Poisson's ratio of 0.3.

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A solid circular shaft has a diameter of d mm and is made from steel, which fail when tested in simple tension test at a stress of 150 MPa. The shaft was subjected by bending moment and torque which are 22.2 kNm and 44.4 kNm respectively. Calculate the minimum allowable shaft diameter, d according to:- (a) Tresca failure criterion  (b) Von Mises theory of elastic failure

Problem 2 A solid steel shaft 5 m long is stressed at 80 MPa when twisted through 4°. Using G = 83 GPa, compute the shaft diameter and torsional stiffness. What power can be transmitted by the shaft at 20 Hz? Answers: 138 mm, 591.2 kN.m/rad and 5.19 MW

A winch raises a 60# bucket of paint, as shown. The main shaft of the winch is simply supported by bearings at A and C. The winch uses a 6"diameter pulley (B) and torque is applied at the end of the shaft to pull the cart. Determine the minimum shaft diameter based on the Distortion Energy (Von Mises) criterion using on a yield strength of 50ksi and a design factor of 2.0. 12" winch 18" C A Paint Rope

A Hollow power transmission shaft of length ‘L’ 1103 mm, outer diameter ‘D’ 73mm and inner diameter 'd' 50. is required to transmit a power of P 60kW at a speed of 2950rpm. The modulus of rigidity of hardened carbon steel, which the shaft is made of, is 79.5 GPa Calculate the angle of twist of the above stating your answer in degrees?

A solid shaft made from AISI 1040 cold-drawn steel is used to carry two V-belt, as shown in the Fig. 3. Pulley A receives power from a motor through a belt, with the belt tensions shown in Fig. 3. The power is transmitted through the shaft and delivered to the belt through pulley B. Assume the belt tension on the loose side is 10 percent of the tension on the tight side.

Compute the nominal shear stress at the surface in MPa for a 40 mm diameter shaft that transmit 750 kW at 1500 rpm. Axial and bending loads are assumed negligible. Torsional shearing stress is 28 MPa