2) A shaft of a diameter of 30 mm is transmitting 14,9 kW at 400 rpm. The shaft is connected to a pulley of an axial length of 160 mm with the help of a rectangular key 16 mm × 12 mm ( b=16 mm, t=12mm). (The spokes are connected to the pulley, but the pulley is not shown in the figure). Axial length of the key, hub and pulley are 160 mm. Determine the shear and normal stresses developed in the rectangular key. Rectangular key Spokes A BY Hub Shaft

2) A shaft of a diameter of 30 mm is transmitting 14,9 kW at 400 rpm. The shaft is connected to a pulley of an axial length of 160 mm with the help of a rectangular key 16 mm × 12 mm ( b=16 mm, t=12mm). (The spokes are connected to the pulley, but the pulley is not shown in the figure). Axial length of the key, hub and pulley are 160 mm. Determine the shear and normal stresses developed in the rectangular key. Rectangular key Spokes A BY Hub Shaft

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter1: Tension, Compression, And Shear

Section: Chapter Questions

Problem 1.3.17P: A stepped shaft ABC consisting of two solid, circular segments is subjected to torques T}and...

See similar textbooks

Similar questions

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?
As seen in the figure, a construction machine is rotated by a drive mechanism consisting of belt-pulley and spur gear mechanisms. Engine power P = 5.5 kW ; engine shaft speednm = 1500 rpm ; drive pulley diameter Dt = 16 cm ; diameter of the opposite pulley Dk = 55 cm ; number of pinion teeth z1 = 21 ; number of teeth of the counter gearz2 = 60 ; pulley mechanism efficiency ηk = 0.95 ; Since the efficiency of the gear mechanism is ηd = 0.97: a) Find the output shaft speed nç and the torque Mç on this shaft.b) The force on the taut arm of the belt S1 = 450 N;coefficient of friction μ = 0.3 ; If the winding angle α = 160⁰, is the frictionally transmitted moment Ms sufficient to compensate for the Mg moment on the input shaft? Calculate.
A solid shaft 15 meters long is stressed to 85 MPa when twisted through 6 degrees. If G = 83 GPa. What power in kW can be transmitted at 1000 rpm?
A shaft is fixed at support C and has a torque of 75lb.ft with respect to free end at a distance of 0.75ft from C. It remains constant for 0.75ft before a negative uniformly distributed torque of 1200lb.ft/ft at a distance of 1.5ft is introduced. The shaft then remains flat for 1.5ft to free end with a torque of 600lb.ft. where in the shaft is the torque equals to negative 1200lb.ft measured from the free end?
Mechanical design A shaft with the following data: 1- The pulley (A) is 1000 mm in diameter and weight 300N. 2- The gear (B) pitch diameter is 600mm and weight -250N. 3- The pulley is keyed to the shaft at 400mm to the left of left hand bearing. 4-the distance between bearing C and B is 1250 mm. 5- The power is 20 kW at 750 rpm. 6- Tension ratio T1 / T2-2.5 7- The shaft d.livers power to a gear placed horizontally in front, the pressure angel of gear is 20. 8- The allowable shear stress is 70N / mm, kt-2 and km- 1.5. Determine: the diameter of shaft
What are the maximum, minimum, and average power values for the shaft shown in the figure below if the shaft speed is 50 rpm, l = 14 cm, a = 4 cm, b = 12 cm, P = 750 N, Tmin = -200 N-m, Tmax = 400 N-m.
A solid steel shaft, whose Sy= 300 MPa and Su= 400 MPa, is used to transmit 3000 kW at 800 rpm. Determine its diameter.
Falcon company Nizwa is conducting a campus interview to you. You are asked to design the propeller shaft with the following specification. (i) Power transmission =60 kW,(ii) Shaft speed = 160 rpm,(iii)The angle of twist / m length = 1.1º(iv)Maximum twisting moment is 30% greater than its mean. (v) Take Modulus of rigidity as 105 Gpa. (i) Mean torque of the shaft (unit in Nm) = (ii)Maximum torque of shaft (unit in Nm) = (iii) The diameter of the shaft (unit in mm) = iv) Maximum shear stress in the shaft (Unit in MPa) is
A solid steel shaft transmits 50 KW of power at the frequency of (50/ π) Hz. The initial torque needed in the shaft is A) 812 N-m B) 678 N-m C) 541 N-m D) 500 N-m
The disc clutch of an automobile is carried on a 2-inch 6-splined shaft and not to slide under load. The nominal dimensions are as follows: b = 0.25 D; t = 0.075 D and d = 0.85 D. The hub length of 150 % of shaft diameter. Determine the total horsepower transmitted at 3,600 rpm, if the yield strength of the shaft is 1,400 psi
A motor drives a shaft at 12 Hz and delivers 20 kW of power as shown in Fig.4. (a) If the shaft has a diameter of 30 mm, what is the maximum shear stress τmax in the shaft? (b) If the maximum allowable shear stress is 40 MPa, what is the minimum permissible diameter dmin of the shaft? A solid circular bar of diameter d = 50 mm is twisted in a testing machine until the applied torque reaches the value T = 500 Nm as shown in Fig.4. At this value of torque, a strain gage oriented at 45 ° to the axis of the bar gives a reading ε =339 ×10-6 . What is the shear modulus G of the material?
A hollow shaft of 1 m length is designed to transmit a power of 30 kW at 700 rpm. The maximum permissible angle of twist in the shaft is 1º. The inner diameter of the shaft is 0.7 times the outer diameter. The modulus of rigidity is 80 GPa. What is the outside diameter of the shaft?