768_Dynamics 11ed Manual

768_Dynamics 11ed Manual - ⎜ ⎜ ⎝ ⎞ ⎟ ⎟ ⎠ lb...

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Engineering Mechanics - Dynamics Chapter 21 a 2f t = α 2 rad s 2 = g 32.2 ft s 2 = Solution: I G W g L 2 12 = Guesses A x 1lb = A y 1lb = A z 1lb = M x 1lbf t = M y 1lbf t = M z 1lbf t = Given A x A y A z 0 0 W + W g 0 a L 2 + 2 L 2 α = 0 L 2 0 A x A y A z × M x M y M z + I G 0 0 0 0 0 0 0 I G α 0 0 0 0 ω I G 0 0 0 0 0 0 0 I G 0 0 ω × + = A x A y A z M x M y M z Find A x A y , A z , M x , M y , M z , () = A x A y A z 0.00 4.89 5.47 lb = M x M y M z 8.43
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Unformatted text preview: ⎜ ⎜ ⎝ ⎞ ⎟ ⎟ ⎠ lb ft ⋅ = Problem 21-59 Four spheres are connected to shaft AB . If you know m C and m E , determine the mass of D and F and the angles of the rods, θ D and F so that the shaft is dynamically balanced, that is, so that the bearings at A and B exert only vertical reactions on the shaft as it rotates. Neglect the mass of the rods. 766...
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This note was uploaded on 08/16/2011 for the course EGN 3321 taught by Professor Christianfeldt during the Spring '08 term at University of Central Florida.

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