Centrifugal forces enable band gaps that self-adapt to synchronous vibrations in rotating elastic metamaterial
SSRN Electronic Journal(2023)
摘要
•Stress-stiffening in local resonances of rotating acoustic metamaterials can be captured using a stress stiffening function.•Rotating acoustic metamaterials with beam-tip-mass resonators support band gaps that depend linearly on the rotational speed.•Resonator parameters can be chosen such that band gaps of the metamaterial self-adjust to the synchronous vibration frequency, resulting in attenuation over a wide range of frequencies and thus rotational speeds.
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关键词
Torsional vibrations,Tunable metamaterials,Rotor dynamics,Synchronous vibrations,Band gaps
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