171_Problem CHAPTER 9

171_Problem CHAPTER 9 - PROBLEM 9.134 After a period of...

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PROBLEM 9.134 After a period of use, one of the blades of a shredder has been worn to the shape shown and is of weight 0.4 lb. Knowing that the moments of inertia of the blade with respect to the AA and BB axes are 32 0.6 10 lb ft s ×⋅ and 1.26 10 lb ft s × ⋅⋅ , respectively, determine ( a ) the location of the centroidal axis , GG ( b ) the radius of gyration with respect to axis . GG SOLUTION Have ( a ) () 4 0.33333 ft 12 BA A dd d =−= and 2 AA GG A I Im d ′′ =+ 2 B BG G B I d Then ( ) 22 B A I d d −= ) 2 2 0.33333 AA md d =− ( ) 0.11111 0.66666 A Then ( ) 1.26 0.6 10
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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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