The shaft of a hand operated wire rope hoist is supported on bearings A and B. The shaft is keyed to the drum of diameter of 200mm and the wire rope is turned around it. A tangential load of 4500 N is applied at the end of the rope. The yield stress for the shaft material is taken as 310 MN/m?. a. Calculate the maximum and minimum principal stresses in the shaft b. Calculate the required shaft diameter d based upon Tresca theory of failure using a factor of safety of 3 c. Determine the factor of safety for the shaft diameter d as obtained in (b) above based upon von-Mises theory of failure. Comment on the value obtained

The shaft of a hand operated wire rope hoist is supported on bearings A and B. The shaft is keyed to the drum of diameter of 200mm and the wire rope is turned around it. A tangential load of 4500 N is applied at the end of the rope. The yield stress for the shaft material is taken as 310 MN/m?. a. Calculate the maximum and minimum principal stresses in the shaft b. Calculate the required shaft diameter d based upon Tresca theory of failure using a factor of safety of 3 c. Determine the factor of safety for the shaft diameter d as obtained in (b) above based upon von-Mises theory of failure. Comment on the value obtained

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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Mechanical Drawings

A mechanical drawing is described as a technical drawing created by engineers following standard layout conventions, terminology, interpretation, and many other factors. It is also known as an engineering drawing.

Question

Dont copy from chegg its wrong over there

4. The shaft of a hand operated wire rope hoist is supported on bearings A and B. The
shaft is keyed to the drum of diameter of 200mm and the wire rope is turned around it.
A tangential load of 4500 N is applied at the end of the rope. The yield stress for the
shaft material is taken as 310 MN/m?.
a. Calculate the maximum and minimum principal stresses in the shaft
b. Calculate the required shaft diameter d based upon Tresca theory of failure using a
factor of safety of 3
c. Determine the factor of safety for the shaft diameter d as obtained in (b) above based
upon von-Mises theory of failure. Comment on the value obtained
200тm,
300тm
A.
Bearing
200mm
Shaft
Bearing
Drum
75mm
4500 N
= 96 N/mm2]
[Ans d= 44.18mm; 0, = -7.144N/mm2; 0,

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