Dynamics of a linear beam with an attached local nonlinear energy sink
作者： F. Georgiades , A.F. Vakakis
DOI: 10.1016/J.CNSNS.2005.07.003
关键词: Sink (geography) 、 Ordinary differential equation 、 Energy transfer 、 Physics 、 Nonlinear system 、 Engineering structures 、 Broadband 、 Mechanics 、 Excitation
摘要: Abstract We provide numerical evidence of passive and broadband targeted energy transfer from a linear flexible beam under shock excitation to local essentially nonlinear lightweight attachment that acts, in essence, as sink—NES. It is shown the NES absorbs one-way, irreversible fashion dissipates this locally, without ‘spreading’ it back beam. Moreover, we show numerically an appropriately designed placed can passively absorb locally dissipate major portion beam, up optimal value 87%. The implementation concept isolation practical engineering structures other applications discussed.
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