here is figure 17.28D O Take Test: Test 2-Shafts (3) Facebook e consider The Cas
ID: 1767190 • Letter: H
Question
here is figure 17.28D
O Take Test: Test 2-Shafts (3) Facebook e consider The Case Of A aunch sp?course assessment d- " Welcome, The Khoi, Wiktionary-t die Báo mat https://ilearnswin.edu.au/webapps/assessment take 21 1210 1&course;_ids_1 87465 1&content;_id:71439801 s Ung dng G Google R Facebook·Log in p Mail THE KHOING -Enrolment amendmt My activity-Studen O YouTube Dáu trang khác x Question Completion Status: QUESTION 2 0.25 points Save Answer Which of the following best describes the dfifferences between the two design options in figure P17.28D on Page 7427 O Option b is easiest to assemble because the assembled shaft can be installed from one end and the retaining clip is then Inserted. Option a on the other hand looks impossible to assemble. Option b is also a better choice because the shaft will not be subject to cyclic loading, which raises issues associated with fatigue. O Option a looks slightly more difficult to assemble, but there is less issue with fatigue. By spreading the bearings out in Option b, the shaft is better supported. This will reduce stress and make the whole assembly more resistant to fatigue and failure. Also, because option b has the bearings removed from the pully assmebly, there is less mass spinning that might be out of balance and away from the points of support.Ifeach bearing was a little out of balance. then this would add to the cyclic loading. At first option b looks easier to assemble, but it has an extra component. This extra component actually makes it just as hard to assemble as option a. QUESTION 3 1 points Save Answer Consider the situation in figure P17,27 of question 17.27 (Page 741). Click Save and Submit to save and submit. Click Save All Answers to save all answers Save All Answers Save and SubmitExplanation / Answer
Option (c) is the correct answer
The fatigue stress is always associated with cyclic loadings. The shaft in (a) is stationary and in (b) is rotating, that's why fatigue is associated with (b). Also, the arrangement in (b) takes care of balancing effects which can cause whirling of shaft. The bearings are so arranged that stress is minimized and life of shaft is increased. Therefore, (c) is the most suitable answer.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.