Task 4: A solid steel shaft in a rolling mill transmits 20 KW of power at 2 Hz. Determine the smallest safe diameter of the shaft if the shear stress Tw is not to exceed 40 MPa and the angle of twist O is limited to 6° in a length of 3m. Use G= 83 GPa.
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- A motor driving a solid circular steel shaft with diameter d = 1.5 in, transmits 50 hp to a gear at B, The allowable shear stress in the steel is 6000 psi. Calculate the required speed of rotation (number of revolutions per minute) so that the shear stress in the shaft does not exceed the allowable limit.What is the maximum power that can be delivered by a hollow propeller shaft (outside diameter 50 mm, inside diameter 40 mm, and shear modulus of elasticity 80 GPa) turning at 600 rpm if the allowable shear stress is 100 MPa and the allowable rate of twist is 3.0°/m?A tubular shaft being designed for use on a construction site must transmit 120 kW at 1,75 Hz, The inside diameter of the shaft is to be one-half of the outside diameter. If the allowable shear stress in the shaft is 45 MPa, what is the minimum required outside diameter d?
- A hollow tube ABCDE constructed of monel metal is subjected to five torques acting in the directions shown in the figure. The magnitudes of the torques are T1= 1000 lb-in., T2= T4= 500 lb-in., and T3= T5= 800 lb-in. The tube has an outside diameter of d2= 1.0 in. The allowable shear stress is 12,000 psi and the allowable rate of twist is 2.0°/ft. Determine the maximum permissible inside diameter d1, of the tube.Repeat Problem 11.2-3 assuming that R= 10 kN · m/rad and L = 2 m.A full quarter-circular fillet is used at the shoulder of a stepped shaft having diameter D2= 1.0 in. (see figure), A torque T = 500 lb-in. acts on the shaft. Determine the shear stress at the stress concentration for values as follows: D1= 0.7,0.8, and 0.9 in. Plot a graph showing versus D?
- The stepped shaft shown in the figure is required to transmit 600 kW of power at 400 rpm. The shaft has a full quarter-circular fillet, and the smaller diameter D1= 100 mm. If the allowable shear stress at the stress concentration is 100 MPa, at what diameter will this stress be reached? Is this diameter an upper or a lower limit on the value of D2?Question 4. The shaft is made from a solid steel section AB and a tubular portion made of steel and having a brass core. If it is fixed to a rigid support at 4, and a torque of T= 50 kN.m is applied to it at C, determine the angle of twist that occurs at C and compute the maximum shear stress and maximum shear strain in the brass and steel. Take Gst 115 GPa, Gbr 56 GPa. 3 m %D 2 m 100 mm 50 mm T= 50 kN. mA solid brass shaft is loaded as shown below by two torques TB- segments are LAB = 700 mm and LBC 600 mm. A dBc = dAB mm LAB mm B Com dBC For brass, G = 41 GPa. Neglect the effect of any stress concentrations. LBC Determine the smallest diameters dAB and dBC for which an allowable shear stress of 50 MPa is not exceeded. Express each diameter as an integer in units of mm. dAB To 1100 Nm and Tc = 300 Nm. The lengths of the two Determine the magnitude of the total angle of twist in the shaft caused by the two applied torques for the diameters found previously Express your result in units of radians with five decimal places of accuracy. PAC = rad
- Micro Bh Micros Bb Micros - с * Question Completion Status: Question 2 2.0 d=1.50 in. dia. 1.9 1.8 Class r = 0.08 in. The figure below show a stepped shaft in torsion. Compute the maximum shear stress at the step when it rotates at 100 rad/s and transmits 5000 lb-in/s. Use CamScanner app or Notes app of iPhone to scan all hand-written pages into one PDF file. Attach the PDF file here to answer in this question. Class ( bbhosted.cuny.edu/webapps/assessment/take/take.jsp?course_assessment_id=_2374 Class D = 2.00 in. dia. r= Fillet radius Class G Cuent Projec suntur Et WA AS hpA hollow circular shaft transmits 25 horsepower while operating at a rate of 180 rev/min. If the shear stress in the shaft is limited to 475O psi, find the smallest safe thickness (in inches) for the shaft if the outside diameter is 2.5 in and the angle of twist is limited to 8.75° with a length of 8 feet. Use G=12x106 psi for steel.Compute the torsional shear stress in a hollow shaft with an outside diameter of 40 mm and an inside diameter of 30 mm when transmitting 28 kilowatts(kW) of power at a speed of 45 rad/s.