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- W2011181710 abstract "Abstract This paper presents a new design of nonlinear dynamic absorber (NDA) using the phenomenon of modal energy transfer between the symmetric mode and the anti-symmetric mode of a curved beam. It can reduce the resonance vibration of a primary structure with a controllable operational frequency range. The energy transfer is initiated by an autoparametric vibration and the excitation force required is lowest when the ratio of the resonance frequencies of the first symmetric mode ( ω 1 ) and first anti-symmetric mode ( ω 2 ) is close to 2. The resonance frequency of the first anti-symmetric mode ( ω 2 ) can be altered to control the operational frequency range. The autoparametric vibration response can be used to create an energy-dissipative region with a controllable bandwidth. It is also possible to create a non-dissipative region in between two dissipative regions. This is useful for providing damping for a conventional dynamic absorber without adding high damping material. The damping is due to the dissipation of energy to anti-symmetric mode. Numerical calculations indicate that the resonance vibration of a primary structure can be successfully reduced using this approach. The results are verified with experimental data." @default.
- W2011181710 created "2016-06-24" @default.
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- W2011181710 date "2011-07-01" @default.
- W2011181710 modified "2023-09-26" @default.
- W2011181710 title "Use of modal energy transfer as a new damping device with controllable bandwidth" @default.
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- W2011181710 doi "https://doi.org/10.1016/j.jsv.2011.02.029" @default.
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