Then get k fs from eq 632 k fs 1 q s k ts 1 example

Info icon This preview shows pages 21–30. Sign up to view the full content.

Then get K fs from Eq. (6–32): K fs = 1 + q s ( K ts – 1)
Image of page 21

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

Example 7–1 (continued)
Image of page 22
Example 7–1 (continued)
Image of page 23

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

Example 7–1 (continued)
Image of page 24
Example 7–1 (continued)
Image of page 25

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

Estimating Stress Concentrations Stress analysis for shafts is highly dependent on stress concentrations. Stress concentrations depend on size specifications, which are not known the first time through a design process. Standard shaft elements such as shoulders and keys have standard proportions, making it possible to estimate stress concentrations factors before determining actual sizes.
Image of page 26
Estimating Stress Concentrations
Image of page 27

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

Deflection Considerations Deflection analysis at a single point of interest requires complete geometry information for the entire shaft. For this reason, a common approach is to size critical locations for stress, then fill in reasonable size estimates for other locations, then perform deflection analysis. Deflection of the shaft, both linear and angular, should be checked at gears and bearings.
Image of page 28
Deflection Considerations Allowable deflections at components will depend on the component manufacturer’s specifications. Typical ranges are given in Table 7–2
Image of page 29

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

Deflection Considerations Deflection analysis is straightforward, but lengthy and tedious to carry out manually. Each point of interest requires entirely new deflection analysis. Consequently, shaft deflection analysis is almost always done with the assistance of software. Options include specialized shaft software, general beam deflection software, and finite element analysis software.
Image of page 30
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern