The first two natural frequencies of the telescoping car antenna shown in Fig. 3.69 are given by

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The first two natural frequencies of the telescoping car antenna shown in Fig. 3.69 are given by \(3.0 \mathrm{~Hz}\) and \(7.0 \mathrm{~Hz}\). Determine whether the vortex shedding around the antenna causes instability over the speed range \(90-130 \mathrm{~km} / \mathrm{h}\) of the automobile.

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Mechanical Vibrations

ISBN: 9780134361925

6th Edition

Authors: Singiresu S Rao

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