Determine the maximum inside diameter, din, permitted for a hollow driveshaft if the outside diameter is D = 2.25 in. Answer: din = in. Determine the percent savings in weight realized if the hollow shaft is used instead of the solid shaft. Answer: Savings in weight = i %

Mechanics of Materials (MindTap Course List)
9th Edition
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Barry J. Goodno, James M. Gere
Chapter3: Torsion
Section: Chapter Questions
Problem 3.7.8P: A tubular shaft being designed for use on a construction site must transmit 120 kW at 1,75 Hz, The...
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Determine the maximum inside diameter, din, permitted for a hollow driveshaft if the outside diameter is D = 2.25 in.
Answer: din =
in.
Determine the percent savings in weight realized if the hollow shaft is used instead of the solid shaft.
Answer: Savings in weight = i
%
Transcribed Image Text:Determine the maximum inside diameter, din, permitted for a hollow driveshaft if the outside diameter is D = 2.25 in. Answer: din = in. Determine the percent savings in weight realized if the hollow shaft is used instead of the solid shaft. Answer: Savings in weight = i %
An automobile engine supplies power, P = 240 hp, at a rotational speed of 3200 rpm to a driveshaft. If the allowable shear stress in the
driveshaft must be limited to Tallow = 4.75 ksi, determine:
(a) the minimum diameter required for a solid driveshaft.
(b) the maximum inside diameter permitted for a hollow driveshaft if the outside diameter is D = 2.25 in.
(c) the percent savings in weight realized if the hollow shaft is used instead of the solid shaft.
Part 1
Calculate the torque T in the driveshaft.
Answer: T= i
Part 2
lb-ft.
Determine the minimum diameter d required for a solid driveshaft.
Answer: d = i
in.
Transcribed Image Text:An automobile engine supplies power, P = 240 hp, at a rotational speed of 3200 rpm to a driveshaft. If the allowable shear stress in the driveshaft must be limited to Tallow = 4.75 ksi, determine: (a) the minimum diameter required for a solid driveshaft. (b) the maximum inside diameter permitted for a hollow driveshaft if the outside diameter is D = 2.25 in. (c) the percent savings in weight realized if the hollow shaft is used instead of the solid shaft. Part 1 Calculate the torque T in the driveshaft. Answer: T= i Part 2 lb-ft. Determine the minimum diameter d required for a solid driveshaft. Answer: d = i in.
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