636_Dynamics 11ed Manual

636_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 19 b () ω R = v B a CB = A R ar + CB a r = H c W g v B a W g k B 2 A + = H c 8.39 slug ft 2 s = Problem 19-5 The fan blade has mass m b and a moment of inertia I 0 about an axis passing through its center O . If it is subjected to moment M = A (1 e bt ) determine its angular velocity when t = t 1 starting from rest. Given: m b 2kg = A 3Nm = t 1 4s = I O 0.18 kg m 2 = b 0.2 s 1 = Solution: 0 0 t 1 t A 1 e bt d + I O 1 = 1 1 I O 0 t 1 t A 1 e d = 1 20.8 rad s = Problem 19-6 The wheel of mass m w has a radius of gyration k A . If the wheel is subjected to a moment M = bt , determine its angular velocity at time
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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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