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- W2005900550 abstract "A system of two, nearly identical Euler-Bernoulli beams, which are coupled through a torsional spring, is here analyzed in terms of power exchange between and energy localization within this nearly symmetric system. This investigation can be viewed as extending over an ensemble of systems, one member of which consists of two identical beams (the tuned state) and the rest are similar systems except for small perturbations introduced to the tuned system to create mistuned states. Harmonic excitation of members of the ensemble make it clear that vibration localization can occur for small length perturbations. Clearly, the localization degree depends strongly on the coupling strength. Here, the ensemble is examined under wide-band stationary random excitation. Computations are performed of the mean power flow between the two beams over specific frequency bands. It is clearly seen that power flow is strongest in the tuned state, but it is also significant for specific other values of perturbation. The nature of this dependence, along with its possible implications to design methodologies, such as Statistical Energy Analysis, will be discussed." @default.
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- W2005900550 date "1991-04-01" @default.
- W2005900550 modified "2023-10-17" @default.
- W2005900550 title "Vibrational power flow and energy localization in coupled systems" @default.
- W2005900550 doi "https://doi.org/10.1121/1.2029746" @default.
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