497_Dynamics 11ed Manual

497_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 16 Problem 16-142 The “quick-return” mechanism consists of a crank AB , slider block B , and slotted link CD . If the crank has the angular motion shown, determine the angular motion of the slotted link at this instant. Given: a 100 mm = ω AB 3 rad s = l 300 mm = α AB 9 rad s 2 = θ 30 deg = φ 30 deg = Solution: u 1 cos () sin 0 = u 2 sin cos 0 = r 1 a u 1 = r 2 l u 2 = k 0 0 1 = Guesses CD 1 rad s = CD 1 rad s 2 = v rel 1 m s = a rel 1 m s 2 = Given AB kr 1 × CD 2 × v rel u 2 + = AB 1 × AB 2 r 1 CD 2 × CD 2 r 2 a rel u 2 + 2 CD k v rel u 2 × + = CD CD v rel a rel
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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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