| 机械式频率可调动力吸振器及其减振特性 |
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| 引用本文： | 徐振邦,龚兴龙,陈现敏. 机械式频率可调动力吸振器及其减振特性[J]. 振动与冲击, 2010, 29(2): 1-6. DOI: |
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| 作者姓名： | 徐振邦 龚兴龙 陈现敏 |
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| 作者单位： | (中国科学技术大学 近代力学系，中国科学院材料力学行为与设计重点实验室，安徽合肥 230027) |
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| 摘 要： | 为了拓宽吸振器的工作频带,提高吸振器的减振效果,研制了一种通过调节自身的几何参数来调节其固有频率的机械式频率可调动力吸振器,并设计了相应的控制方法。对吸振器的减振特性进行了理论分析。建立了多模态系统的力学模型,利用子结构导纳综合法对系统进行了仿真计算。在多模态实验平台上对该吸振器的减振效果进行了试验研究,结果表明该吸振器减振效果好,实验结果与理论结果吻合良好。
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| 关 键 词： | 频率可调动力吸振器 振动控制 多模态振动 |
| 收稿时间： | 2008-12-16 |
| 修稿时间： | 2009-02-26 |
Mechanical vibration absorber with tunable resonant frequency and its vibration attenuation characteristics |
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| XU Zhen-bang,GONG Xing-long,CHEN Xian-min. Mechanical vibration absorber with tunable resonant frequency and its vibration attenuation characteristics[J]. Journal of Vibration and Shock, 2010, 29(2): 1-6. DOI: |
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| Authors: | XU Zhen-bang GONG Xing-long CHEN Xian-min |
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| Affiliation: | (CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China) |
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| Abstract: | In order to improve working frequency band and damping effect of a vibration absorber, a new kind of vibration absorber was presented, its resonant frequency could be adjusted in real-time by adapting its geometry parame-ters. Its corresponding control method was also studied. Its vibration attenuation characteristics were analyzed theoretical-ly. The simulation analysis of its dynamical performance according to its theoretic model was performed with the transmis-sion mobility method. The dynamic properties of the absorber were also characterized on a multiple modal experimental platform. The experimental results matched well with the theoretical ones, they indicated that this kind of absorber can at-tenuate vibration well in the whole frequency range. |
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| Keywords: | vibration absorber with tunable resonant frequency vibration control multiple modal vibration |
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