Design 02: A rotating circular shaft, machined from AISI 1137cold drawn steel (Su-1083 MPa, Sy-938 MPa), issubjected to a torque that varies from a value of 200 N.mto 400 N.m and an variable axial tensile force of 5 kN &10 kN acts on the neutral axis, see Figure (2).Find: the factor of safety of the element for an infiniteFigure (2)R=3 mm50 mm40 mm-operation life at the worse point assuming the reliability as0.999. Assume that: K-1.8

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Engineering

Mechanical Engineering

nsile force of 5 kN & gure (2). ement for an infinite ming the reliability as

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Concept explainers

Introduction to Engineering Design Process

The engineering design process is a set of steps that engineers follow to come up with a solution to a particular problem. The solution to the problem involves the designing of a product that can accomplish a certain task and can qualify certain criteria. The process of designing is completely different from that of the scientific method, that you may be familiar with. If the project utilizes the observations, and the experiments then the engineering design process must be followed. The diagram shows the steps of the engineering design process, and the table below describes each step in more detail:

Question

Design

02: A rotating circular shaft, machined from AISI 1137
cold drawn steel (Su-1083 MPa, Sy-938 MPa), is
subjected to a torque that varies from a value of 200 N.m
to 400 N.m and an variable axial tensile force of 5 kN &
10 kN acts on the neutral axis, see Figure (2).
Find: the factor of safety of the element for an infinite
Figure (2)
R=3 mm
50 mm
40 mm-
operation life at the worse point assuming the reliability as
0.999. Assume that: K-1.8

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