研究了耦合非线性能量阱的非保守系统的定向能量传递现象。基于复变量平均法推导含有阻尼参数的系统慢变方程，求解出系统能量与各参数近似关系，获得了系统能够实现定向能量传递时阻尼必须满足的条件，并给出了非线性能量阱具有吸振能力时线性振子阻尼有效范围，最后数值分析验证上述研究结果。
Abstract
Targeted energy transfer is investigated in non-conservative system with nonlinear energy sink. First we get the slow-flow dynamics of system based on the complex-averaging method. Then we obtain the approximate relationship between energy of system with structural parameters, get the necessary condition of damp which system can achieve targeted energy transfer. We also obtain the effective range of linear oscillator damp which nonlinear energy sink has the capacity of vibration suppression. At last the above analysis is verified by numerical simulations.
关键词
非线性能量阱 /
定向能量传递 /
立方刚度 /
阻尼约束 /
振动抑制
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Key words
nonlinear energy sink /
targeted energy transfer /
cubic stiffness /
damp conditions /
vibration suppression
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参考文献
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