For the problem specified in the table, build

Chapter 7, Problem 7-7

(choose chapter or problem)

For the problem specified in the table, build upon the results of the original problem to obtain a preliminary design of the shaft by performing the following tasks.

(a) Sketch a general shaft layout, including means to locate the components and to transmit the torque. Estimates for the component widths are acceptable at this point.

(b) Specify a suitable material for the shaft.

(c) Determine critical diameters of the shaft based on infinite fatigue life with a design factor of 1.5. Check for yielding.

(d) Make any other dimensional decisions necessary to specify all diameters and axial dimensions. Sketch the shaft to scale, showing all proposed dimensions.

(e) Check the deflections at the gears, and the slopes at the gears and the bearings for satisfaction of the recommended limits in Table 7–2. Assume the deflections for any pulleys are not likely to be critical. If any of the deflections exceed the recommended limits, make appropriate changes to bring them all within the limits.

Problem Number

Original Problem, Page Problem

7-7*

3-68, 151

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