Applied Statics and Strength of Materials (6th Edition)
6th Edition
ISBN: 9780133840728
Author: Limbrunner
Publisher: PEARSON
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Chapter 12, Problem 12.50SP
Two shafts-one a hollow steel shaft with an outside diameter of 100 mm and an inside diameter of 40 mm, the other a solid steel shaft with a diameter of 100 mm-are to transmit 90 kW each. Compare the shear stresses in the two shafts if both operate at 150 r/min.
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Chapter 12 Solutions
Applied Statics and Strength of Materials (6th Edition)
Ch. 12 - Determine the internal resisting torque in the...Ch. 12 - Determine the internal resisting torque in the...Ch. 12 - Calculate the maximum shear stress developed in a...Ch. 12 - Calculate the allowable torque for a hollow steel...Ch. 12 - Calculate the allowable torque that may be applied...Ch. 12 - A hollow circular steel shaft has a 100-mm outside...Ch. 12 - Design a solid circular steel shaft to transmit an...Ch. 12 - Calculate the shear stresses at the outer and...Ch. 12 - A hollow shaft is produced by boring a...Ch. 12 - Pulleys C and D are attached to shaft AB, as...
Ch. 12 - Calculate the angle of twist a 3-in-diameter...Ch. 12 - Calculate the angle of twist a 65-mm-diameter...Ch. 12 - Calculate the angle of twist a 4-in.-diameter...Ch. 12 - Prob. 12.14PCh. 12 - Prob. 12.15PCh. 12 - A solid steel shaft is to resist a torque of 9000...Ch. 12 - A hollow steel shaft has a 50-mm outside diameter...Ch. 12 - If the shaft of Problem 12.17 were solid, with the...Ch. 12 - An automobile engine develops 90 hp at 3500 rpm....Ch. 12 - Calculate the speed (rpm) at which a...Ch. 12 - Select the diameter of a solid circular steel...Ch. 12 - Select the diameter for a hollow steel shaft that...Ch. 12 - A 6-ft-long solid steel shaft with a diameter of 4...Ch. 12 - The outside and inside diameters of a hollow steel...Ch. 12 - Calculate the maximum shear stress developed in a...Ch. 12 - Write a program that will calculate the allowable...Ch. 12 - Write a program that will generate a table of...Ch. 12 - Rework the program of Problem 12.27 using SI...Ch. 12 - Write a program that will generate a table of...Ch. 12 - Compute the maximum shear stress in the hollow...Ch. 12 - Calculate the allowable torque that may be applied...Ch. 12 - Design a hollow steel shaft to transmit a torque...Ch. 12 - A 32-in.-long solid steel circular shaft, 3 in. in...Ch. 12 - The 65-mm-diameter solid shaft shown is subjected...Ch. 12 - Rework Problem 12.34, changing the diameter of...Ch. 12 - Compute the maximum shear stress in the circular...Ch. 12 - Determine the allowable torque a hollow steel...Ch. 12 - A 1.00-m-long steel wire, 4 mm in diameter, is...Ch. 12 - Select the outside and inside diameters for a...Ch. 12 - A solid aluminum shaft, 6 ft in length, is to...Ch. 12 - A 25-mm-diameter solid shaft with an allowable...Ch. 12 - Compute a. the maximum shear stress developed in a...Ch. 12 - What horsepower can a solid steel shaft 6 in. in...Ch. 12 - Calculate the maximum power that may be...Ch. 12 - A small ski lift has a main cable driving wheel 11...Ch. 12 - A 32-mm-diameter solid shaft transmits 100 kW of...Ch. 12 - A solid steel shaft is to transmit power of 58 kW...Ch. 12 - Select the diameter for a solid steel shaft that...Ch. 12 - A solid steel shaft is to transmit 100 hp at a...Ch. 12 - Two shafts-one a hollow steel shaft with an...Ch. 12 - A 112 -in.-diameter solid steel shaft is 40 ft in...Ch. 12 - A solid steel shaft is to transmit 120 hp. The...
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- A solid shaft is transmitting 15 MW of power at 1760 rpm. If the allowable shear stress must not amount to 500MPa, determine the size of the shaft.arrow_forwardThe shaft of a vertical turbogenerator set in a hydroelectric power plant has an outside diameter of 305 mm and an inside diameter of 254 mm. The shaft transmits 5000 hp at a 750 rpm. The total weight of the shaft and the turbine runner is 54 metric tons. Determine the maximum normal stress in the shaft.arrow_forwardA solid shaft is transmitting 1MW at 240rpm . Determine the diameter of the shaft if the maximum torque transmitted exceeds the mean torque by 20%.Take the maximum allowable shear stress are 60MPa.arrow_forward
- A shaft is used to transmit 24 kw at a speed of 1,779 rev/min. Using a maximum allowable shear stress of 48 MPa, find the shaft diameter in mmarrow_forwarda hollow shaft for a rotary compressor is to be designed to transmit maximum torque of 4750 n-m. the shear stress in the shaft is limited to 50 mpa. determine the inside outside diameter of the shaft if the ratio of inside to outside diameter of the shaft is 0.4arrow_forwardQ2. A mild steel shaft transmits ‘P’ kW at ‘N’ r.p.m. It carries a central load of 900 N and is simply supported between the bearings 2.5 metres apart. Determine the size of the shaft, if the allowable shear stress is 42 MPa and the maximum tensile or compressive stress is not to exceed 56 MPa. Power P in KW= 25 , Speed N in rpm=150arrow_forward
- A flat belt, of density 1000 kg/m3 has a maximum permissible stress of 2·5 MN/m². Thebelt is 200 mm wide and 12 mm thick.(a) Determine the maximum power that can be transmitted if the ratio of tight-side toslack-side tension is 2. The diameter of the driving pulley is 900 mm and the required speed of the output shaft is955 rev/min(b) Taking the belt thickness into account, determine the required diameter of theoutput pulley. (c) What would the required diameter be, assuming a total slip of 4%? (d) If the mass of the belt was neglected, explain the effect (with reasons) this wouldhave on the maximum power calculated in (a)arrow_forwardIn a pipe of diameter 100 mm, carrying water, the velocities at the pipe center and 30 mm from the pipe center are found to be 2.5 m/s and 2.2 m/s respectively. Find the wall shearing stress.arrow_forwardA steel propeller for a windmill transmits 5.7 kW at 43.4 rpm. If the allowable shear stress in the shaft must be limited to 72 MPa, determine the minimum diameter d required for a solid shaft.arrow_forward
- A line shaft rotating at 320 rpm is to transmit 35 kW power. The allowable shear stress for the shaft material is 56 N/mm2. Determine the diameter of the shaft?arrow_forwardThe propellers of a ship are connected to an A-36 steel shaft that is 60 m long and has an outer diameter of 340 mm and inner diameter of 260 mm. If the power output is 4.5 MW when the shaft rotates at 20 rad>s, determine the maximum torsional stress in the shaft and its angle of twist.arrow_forwardA hollow shaft for a rotary compressor is to be designed to transmit a maximum torque of 4750 N-m.The shear stress in the shaft is limited to 50 MPa. Determine the inside and outside diameters of theshaft, if the ratio of the inside to the outside diameter is 0.4. [Ans. 35 mm ; 90 mm]arrow_forward
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