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Unformatted text preview: supported (as shown in the figure above). Consider a steel shaft of diameter 1.75 in. (l=8-in;a=4-in;b=8-in;P=1000-lb; Tmin=0;Tmax=2000 lb-in). The shaft material properties are: S ut = 108 kpsi; S y = 62 kpsi. For the specifications given above, determine the diameter of the shaft for a fatigue factor of safety of 2. What are the maximum, minimum and average power values for the shaft if the shaft speed is 750 rpm? T T 4. Determine the critical frequency of shaft whirl for the assembly shown below with the following dimensions (l=17 in; a=6in; b=12in; P=1500-lb; Tmin= - 200 lb-in; Tmax= 500 lb-in). The diameter of the steel shaft is 4cm. The cast iron roller diameter is 2 times the shaft diameter. d Bearings act as simple supports...
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This note was uploaded on 11/10/2010 for the course ME 338 taught by Professor Campbell during the Fall '09 term at University of Texas at Austin.
- Fall '09