A shaft with a diameter of 51 mm rotates at 1,225 RPM. Three discs are mounted on the shaft, with weight of w,=9 N, W2=%3D26 N and wa = 8 N, respectively, as shown in Figure below. The deflection at the corresponding mounting locations are y, =W3= 0.179 mm, respectively. Calculate the fundamental critical speed (in RPM) usingУз0.305 mm, y, =Y20.45 mm andRayleigh's method neglecting shaft properties. Use the value of critical speed in RPM to estimate the factor of safety in termsof critical speed.Enter the factor of safety only as the answer upto 4 digits of decimal.Page 309y3y2W3W1w2150350300100

Given , Diameter of the shaft = 51 mm Speed of the shaft , N =1225 rpm. w1 = 9 N ,w2 = 26 N . w3…

A shaft with a diameter of 51 mm rotates at 1,225 RPM. Three discs are mounted on the shaft, with weight of w =9 N, W, = 26 N and wa= 8 N, respectively, as shown in Figure below. The deflection at the corresponding mounting locations are y, =D 0.305 Va = 0.179 mm, respectively. Calculate the fundamental critical speed (in RPM) using mm, y, = 0.45 mm and Rayleigh's method neglecting shaft properties. Use the value of critical speed in RPM to estimate the factor of safety in terms of critical speed. Enter the factor of safety only as the answer upto 4 digits of decimal. Page 309 yi y3 w3 W1 W2 300 100 150 350

A shaft with a diameter of 51 mm rotates at 1,225 RPM. Three discs are mounted on the shaft, with weight of w =9 N, W, = 26 N and wa= 8 N, respectively, as shown in Figure below. The deflection at the corresponding mounting locations are y, =D 0.305 Va = 0.179 mm, respectively. Calculate the fundamental critical speed (in RPM) using mm, y, = 0.45 mm and Rayleigh's method neglecting shaft properties. Use the value of critical speed in RPM to estimate the factor of safety in terms of critical speed. Enter the factor of safety only as the answer upto 4 digits of decimal. Page 309 yi y3 w3 W1 W2 300 100 150 350

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

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
4. Find the diameter of steel line shaft to transmit 10 hp at 150 rpm with a torsional deflection not to exceed 0.08 deg foot length.
Compute the twisting and bending moments of the shaft (AISI 4140 steel) given the following parameters: Shaft length = 42 in Shaft diameter = 0.945 in Force = 245.25 N Torque = 79.71 Nm
42. The static deflection at the center of the steel shaft in Fig. 3-53 is equal to 0.35 mm. Find the value of the critical speed. Shaft is steel. Ans. n = 1810 rpm. Design of Shafts Chap. 3 248 t. 50 30 1"dia 10" 10" Figure 3-52 Problem 41. 10 kg 10 kg C B 375 600 mm 375 Figure 3-53 Problem 42.
Consider a simply supported steel shaft as depicted below with 4 cm in diameter and 1 m span between bearings, carrying two gears weighing 100 and 80 kg., Calculate the critical speed of the shaft considering its own weight as well. (Sy = 240 Mpa, Sut = 400 Mpa, E=210 GPa, density=7800 kg/m3)
A shaft in torsion only is to transmit 2500 HP at 570 rpm with mild shock. Its material is AISI 1137 steel annealed. (a) What should be the diameter of a solid shaft? (b) If the shaft is hollow, Do = 2Di, what size is required? (c) What is the weight per foot of length of each of these shafts? Which is lighter? Use sp. weight = 0.286 Ibs/cu. in. (d) Which shaft is more rigid? Compute the torsional deflection of each shaft for a length of 10 ft.
Write legibly, provide manual step by step solution, and diagram for below given problem. A 2.5 in diameter 10 spline shaft ( d= 0.86D, w= 0.156D, h= 0.07D ) to slide when not under load has a compressive force of 2500 lb. Find the torque applied if hub length is 1 1/2 in. Ans. 2906.25 in-lb
The complex shaft assembly shown below is made of steel (Gst = 75 GPa). A solid shaft with a diameter of 20 mm is fixed to the tube at point B using a rigid disk. The outer diameter of the tube is at 40 mm, while the wall thickness is 5 mm. Find the: 2. Polar moment of inertia of the tube, m^4 b. Polar moment of inertia of the solid shaft, m^4 c. Angle of twist at D, radians (2 pts) A B 150 N-m 0.4 m 0.1 m D 0.3 m 50 N-m
The complex shaft assembly shown below is made of steel (Gst = 75 GPa). A solid shaft with a diameter of 20 mm is fixed to the tube at point B using a rigid disk. The outer diameter of the tube is at 40 mm, while the wall thickness is 5 mm. Find the: a Polar moment of inertia of the tube, m^4 a. Polar moment of inertia of the solid shaft, m^4 c Angle of twist at D, radians A GAm 150 N-m 0.1 m 0.3 m 50 N-m
A disc is mounted in the middle of a light shaft weighing 140N and has an unbalance of 0.002 Kg.m. The two bearings that support the shaft are not rigid and are assumed to have a stiffness of 8x106 N/m each. When the shaft runs at 10000 rpm the bearing deflection is 0.25mm. find the shaft deflection at that speed.
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?
For the free body diagram of the shaft shown below, the rolling contact bearings are located at A and C. For the bearing at A, the desired design load for the bearing is Tangential Direction for Gear Y-X axes: Radial Direction for Gear Z-X axes: 1000 Ibf 500 Ibf A A В 500 Ibf 500 Ibf 250 Ibf 250 Ibf