790_Dynamics 11ed Manual

790_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 22 x max A 2 B 2 + = x max 0.16 m = Problem 22-5 A weight W is suspended from a spring having a stiffness k. If the weight is pushed distance d upward from its equilibrium position and then released from rest, determine the equation which describes the motion. What is the amplitude and the natural frequency of the vibration? Given: W 2lb = k 2 lb in = d 1in = g 32.2 ft s 2 = Solution: ω n k W g = n 19.7 rad s = yA cos n t () B sin n t + = Ad = B 0in = cos n t = A 0.08 ft = n 19.7 rad s = f n 2 π = f 3.13 Hz = CA 2 B 2 + = C 1.00 in = Problem 22-6
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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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