198_Problem CHAPTER 9

198_Problem CHAPTER 9 - PROBLEM 9.145 Determine the mass...

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PROBLEM 9.145 Determine the mass moment of inertia of the steel machine element shown with respect to the z axis. (The density of steel is 7850 kg/m 3 .) SOLUTION See machine elements shown in Problem 9.145 Also note 1 113.040 kg m = 2 45.216 kg m = 3 14.7969 kg m = 4 7.3985 kg m = Using Fig. 9.28 for components 1 and 2 and the equations derived above for components 3 and 4, have Now ( ) ( ) ( ) ( ) 1234 zz z z z I IIII =++− where () ( ) () 22 2 1 1 0.200 0.120 113.040 kg 0.200 0.120 m 12 2 2 z I   =+ + +      2 2.0498 kg m =⋅ ()() 2 2 1 45.216 kg 0.200 0.080 0.100 0.160 m 12 z I + + 2 1.78453 kg m 2 3 1 14.7969 kg 3 0.100 0.120 0.100
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This note was uploaded on 07/11/2011 for the course EGM 2511 taught by Professor Jenkins during the Spring '08 term at University of Florida.

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