Shaft Problem

  • #1

Homework Statement


I'm supposed to design and analyze a shaft including all features to retain the shaft in the bearings and attach the coupling and sheave and the shaft shouldn't fail in static loading or through fatigue.


Homework Equations

3

-The flexible coupling attaches your shaft to the shaft of a driving motor. The motor shaft has a diameter of 0.4997” +0.0000 / -0.0005”.
- The pillow blocks can be aligned parallel to no better than 25 micrometers.
- The sheave can be of your choosing, but should have a diameter of about 150 mm.
- The shaft rotates at 1200 RPM while transmitting approximately 500 W of power



The Attempt at a Solution



So far all I've done is found the torque.

Power = Torque * [tex]\omega[/tex]

500 = T*(1200rpm*(2pi/60))
T = 3.97887 N*m


I'm not exactly sure where to move from here. I attached a copy of what I think the free body diagram is. Is my FBD correct and where should I go from here?
 

Attachments

  • fbd.JPG
    fbd.JPG
    13.9 KB · Views: 434

Answers and Replies

Related Threads on Shaft Problem

  • Last Post
Replies
5
Views
2K
  • Last Post
Replies
1
Views
5K
Replies
0
Views
2K
Replies
2
Views
645
  • Last Post
Replies
1
Views
8K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
3
Views
3K
  • Last Post
Replies
1
Views
18K
Replies
3
Views
4K
Replies
9
Views
6K
Top