This is a pre-copyedited version of a contribution published in Kovacic I., Lenci S. (eds) IUTAM Symposium on Exploiting Nonlinear Dynamics for Engineering Systems. ENOLIDES 2018. IUTAM Bookseries, vol 37 published by Springer. The definitive authenticated version is available online via https://doi.org/10.1007/978-3-030-23692-2_21
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Abstract :
[en] This paper presents a tuning methodology to design a vibration absorber
able to mitigate the vibratory amplitude of multiple resonances of a nonlinear structure.
The linear characteristics of the absorber are first tuned to obtain the equal-peak
design on every mode to be controlled when the structure is behaving linearly. Nonlinearities
are then introduced intentionally in the absorber to counteract the effect of
the nonlinearities inside the host structure. Their functional formis chosen according
to a principle of similarity, and their coefficients are determined to enforce equal
peaks in the nonlinear regime.
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