Electromechanical Dynamics (Part 1).0079

Electromechanical Dynamics (Part 1).0079 - B 2 Damping...

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Lumped Electromechanical Elements (b) Find the response z(t) of the system shown in Fig. 2P.5b to a driving displacement y(t) which is y(t) = Auo(t), y(t) = You- (t). 2.6. The mechanical system shown in Fig. 2P.6 is set into motion by a forcing function f(t). This motion is translational only. The masses M 2 and M s slip inside the cans as shown. Note that the upper can is attached to the mass M 1 . (a) Draw the mechanical circuit with nodes and parameters designated. (b) Write three differential equations in zx,x 2 , and x 3 to describe the motion. K 1 K2 t Ms x i K 3 X2 r I3 f(t) All springs have equilibrium length Lo Damping coefficient
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Unformatted text preview: B 2 Damping coefficient B3 Fig. 2P.6 2.7. In the system in Fig. 2P.7 the two springs have zero force when both x 1 and x 2 are zero. A mechanical force f is applied to node 2 in the direction shown. Write the equations governing the motion of the nodes 1 and 2. What are the natural frequencies involved? f Fig. 2P.7 2.8. The velocity of the point P shown in Fig. 2P.8 is dr dO v = it + i dt 77' ~t2~'C~L ~//~/~i~/n///~//////////////u///////// 7///7////7//7/// X/ V/f///////////////////////////1/////// A-PDF Split DEMO : Purchase from www.A-PDF.com to remove the watermark...
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