122_Problem CHAPTER 10

122_Problem CHAPTER 10 - PROBLEM 10.102 The position of...

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PROBLEM 10.102 The position of boom ABC is controlled by the hydraulic cylinder BD . For the loading shown, determine the force exerted by the hydraulic cylinder on pin B when 70 . θ = ° SOLUTION First note, by the Law of Cosines ()() () 22 2 3 ft 2 ft 2 3 ft 2 ft cos =+− DB [] ( ) 2 13 12cos ft =− 13 12cos DB Then ( )( ) 12 sin 1 2 13 12cos δ δδ == B DB or 6sin 13 12cos δθ = B Also 4.5cos = A y Then 4.5sin θδθ A y Virtual Work
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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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