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阻尼对耦合非线性能量阱系统影响研究 被引量：22

Influence of structural damping on a system with nonlinear energy sinks
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摘要 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。 Here,targeted energy transfer was investigated in a non-conservative system with nonlinear energy sinks.Firstly,the system slowly-varying equation containing damping parameters was derived based on the complex-averaging method.Then,the approximate relationships between the system energy and parameters were solved,the necessary conditions satisifed by damping to realize system＇s targeted energy transfer were achieved.The effective range of a linear oscillator＇s damping during nonlinear energy sinks having the capacity of vibration suppression was gained.At last,the above study results were verified with numerical simulations.
作者 熊怀 孔宪仁 刘源
机构地区 哈尔滨工业大学卫星技术研究所
出处 《振动与冲击》 EI CSCD 北大核心 2015年第11期116-121,共6页 Journal of Vibration and Shock
基金 国家自然科学基金(51375109) 哈尔滨工业大学科研创新基金(HIT.NSRIF.2014027)
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 nonlinear energy sink targeted energy transfer cubic stiffness damping conditions vibration suppres-sion
分类号 O328 [理学—一般力学与力学基础] O322 [理学—一般力学与力学基础]
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参考文献12

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二级参考文献29

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共引文献26

同被引文献107

引证文献22

二级引证文献68

振动与冲击
2015年 第11期

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