The use of vibro-impact (VI) attachments as shock absorbers is studied. By considering different configurations of primary linear oscillators with VI attachments, the capacity of theseudattachments to passively absorb and dissipate significant portions of shock energy applied to the primary systems is investigated. Parametric studies are performed to determine the dependenceudof energy dissipation by theVI attachment in terms of its parameters.Moreover, non-linear shock spectra are used to demonstrate that appropriately designed VI attachments can significantlyudreduce the maximum levels of vibration of primary systems over wide frequency ranges.udThis is in contrast to the classical linear vibration absorber, whose action is narrowband. In addition, it is shown that VI attachments can significantly reduce or even completely eliminateudresonances appearing in the linear shock spectra, thus providing strong, robust, and broadband shock protection to the primary structures to which they are attached.
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