Let us suppose that the model used earlier, shown below, is a milling machine of mass M, mounted on supports of stiffnes

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Let Us Suppose That The Model Used Earlier Shown Below Is A Milling Machine Of Mass M Mounted On Supports Of Stiffnes 1 (121.89 KiB) Viewed 11 times

Let us suppose that the model used earlier, shown below, is a milling machine of mass M, mounted on supports of stiffness k1. It is observed that the milling machine experiences excessive vibrations (suggesting resonance) when the motor driving the mill runs at 955 rpm. M1 F1 Sin wt WW M2 k1/2 k1/2 (a) You are required to design a vibration absorber with a mass ratio of 0.1 where, M1 = 200 kg. (b) Determine the two new natural frequencies. (c) If the mass ratio is to be 0.2 what effect will this have on the natural frequencies of the system.