A generator shaft in a small hydroelectric plant turns at 120 rpm and delivers 38 kW (see figure). a) If the diameter of the shaft is d = 75 mm, what is the maximum shear stress τmax in the shaft? b) If the shear stress is limited to 28 MPa, what is the minimum permissible diameter dmin of the shaft?
A generator shaft in a small hydroelectric plant turns at 120 rpm and delivers 38 kW (see figure). a) If the diameter of the shaft is d = 75 mm, what is the maximum shear stress τmax in the shaft? b) If the shear stress is limited to 28 MPa, what is the minimum permissible diameter dmin of the shaft?
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
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Question
A generator shaft in a small hydroelectric plant turns at 120 rpm and delivers 38 kW
(see figure).
a) If the diameter of the shaft is d = 75 mm, what is the maximum shear stress τmax
in the shaft?
b) If the shear stress is limited to 28 MPa, what is the minimum permissible
diameter dmin of the shaft?
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