797_Dynamics 11ed Manual

797_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 22 Solution: ω n g l = A θ 0 = B v l n = t () A cos n t () B sin n t () + = CA 2 B 2 + = C 16deg = Problem 22-15 The semicircular disk has weight W. Determine the natural period of vibration if it is displaced a small amount and released. Given: W 20 lb = r 1f t = g 32.2 ft s 2 = Solution: I O W g r 2 2 W g 4 r 3 π 2 W g r 4 r 3 2 + = W r 4 r 3 sin () I O '' = '' r 4 r 3 W I O + 0 = n r 4 r 3
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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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