Mechanics of Materials (MindTap Course List)
9th Edition
ISBN: 9781337093347
Author: Barry J. Goodno, James M. Gere
Publisher: Cengage Learning
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Textbook Question
Chapter 3, Problem 3.7.10P
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?
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Design a hallow shaft (Diameter and length) that develops 80 kN of power
while rotating at a speed of 4000 rpm. The design constrains are as under:
The angle of twist not to exceed 0.200
Shear stress is not to exceed 480 MN/m?
The outer diameter is to be twice the inner diameter.
The shaft length is to be three times the outer diameter.
Modulus of rigidity = 79 GN/m?.
Design a hallow shaft (Diameter and length) that develops 80 kW of power while rotating at a speed of 4000 rpm. The design constrains are as under:The angle of twist not to exceed 0.200Shear stress is not to exceed 480 MN/m2The outer diameter is to be twice the inner diameter. The shaft length is to be three times the outer diameter. Modulus of rigidity = 79 GN/m2.
A hollow shaft must transmit 1400 kW at
180 rpm. The outside diameter must be 1.6
times the inside diameter. The maximum
torque is 30% more than the mean torque.
Calculate:
1. The diameters of the hollow shaft if the
allowable stress is 200 MPa.
2. The diameter of the solid shaft if the
allowable stress is 200 MPa.
Chapter 3 Solutions
Mechanics of Materials (MindTap Course List)
Ch. 3 - A circular tube is subjected to torque Tat its...Ch. 3 - -2. A plastic bar of diameter d = 56 mm is to be...Ch. 3 - A copper rod of length L = 18.0 in. is to be...Ch. 3 - A circular steel tube of length L = 1.0 m is...Ch. 3 - Solve the preceding problem if the length L = 56...Ch. 3 - A circular aluminum tube subjected to pure torsion...Ch. 3 - A solid steel bar of circular cross section has...Ch. 3 - A solid copper bar of circular cross section has...Ch. 3 - Repeat Problem 3.3-1, but now use a circular tube...Ch. 3 - A copper tube with circular cross section has...
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