A rotating shaft of 25-mm diameter is simply supported by bearing reaction forces R1 and R2. The shaft is loaded with a transverse load of 13 kN as shown in the figure. The shaft is made from AISI 1045 hot-rolled steel. The surface has been machined. Determine (a) the minimum static factor of safety based on yielding. (b) the endurance limit, adjusted as necessary with Marin factors. (c) the minimum fatigue factor of safety based on achieving infinite life. (d) If the fatigue factor of safety is less than 1 (hint: it should be for this problem), then estimate the life of the part in number of rotations. 25 mm 200 mm 13 kN 50 mm R₁ Not to scale. Figure 3 R₂
A rotating shaft of 25-mm diameter is simply supported by bearing reaction forces R1 and R2. The shaft is loaded with a transverse load of 13 kN as shown in the figure. The shaft is made from AISI 1045 hot-rolled steel. The surface has been machined. Determine (a) the minimum static factor of safety based on yielding. (b) the endurance limit, adjusted as necessary with Marin factors. (c) the minimum fatigue factor of safety based on achieving infinite life. (d) If the fatigue factor of safety is less than 1 (hint: it should be for this problem), then estimate the life of the part in number of rotations. 25 mm 200 mm 13 kN 50 mm R₁ Not to scale. Figure 3 R₂
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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Transcribed Image Text:A rotating shaft of 25-mm diameter is simply supported by bearing reaction forces R1 and R2. The
shaft is loaded with a transverse load of 13 kN as shown in the figure. The shaft is made from AISI
1045 hot-rolled steel. The surface has been machined. Determine
(a) the minimum static factor of safety based on yielding.
(b) the endurance limit, adjusted as necessary with Marin factors.
(c) the minimum fatigue factor of safety based on achieving infinite life.
(d) If the fatigue factor of safety is less than 1 (hint: it should be for this problem), then estimate
the life of the part in number of rotations.
25 mm
200 mm
13 kN
50 mm
R₁
Not to scale.
Figure 3
R₂
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