A rotating machine weighing \(1000 \mathrm{~N}\) (including the foundation block) is isolated by supporting it on six identical helical springs, as shown in Fig. 2.54. Design the springs so that the unit can be used in an environment in which the vibratory frequency ranges from 0 to \(5 \mathrm{~Hz}\).

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Rotating machine OO & Isolator (Helical springs) FIGURE 2.54 Isolated rotating machine. 00 Foundation block