Vibration suppression for truss core sandwich beam based on principle of nonlinear targeted energy transfer
作者： J.E. Chen , W. Zhang , M.H. Yao , J. Liu
DOI: 10.1016/J.COMPSTRUCT.2017.03.030
关键词: Energy transfer 、 Excited state 、 Acoustics 、 Nonlinear system 、 Structural engineering 、 Relative motion 、 Truss 、 Governing equation 、 Vibration 、 Impulse (physics) 、 Engineering
摘要: Abstract In this work, the dynamics of a truss core sandwich beam with NES (nonlinear energy sink) device are investigated. Based on principle nonlinear TET (targeted transfer), an is placed in interior to suppress vibration beam. The governing equation motion for attached derived. responses system analyzed under impulse and harmonic loads. Feasibility suppression scheme demonstrated by investigating relation between mass suppressing effect as well relative device. addition, influences parameters studied. It worth noting that enhanced increasing damping when excited loads decreasing influence characteristic spring depends selection other NES.
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