基于动力吸振原理的低频多模态抑振器设计

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摘要为实现结构低频振动控制，基于动力吸振(dynamic vibration absorber，DVA)原理设计了一种多模态抑振器。为研究吸振器阵列与抑振器阵列的抑振效果，建立了附加动力吸振器阵列四边简支板的动力学耦合模型，验证了动力吸振器阵列的振动控制效果；提出了以橡胶板-质量块、橡胶基体-金属柱壳为主要组成结构的多模态低频抑振器，从理论上计算了其各组成结构的轴向共振模态频率，并以动力吸振器参数为基准对抑振器几何参数和材料参数进行了调整，最终通过仿真和实验验证了抑振器阵列振动控制效果。结果表明：当吸振器阵列或抑振器阵列布置位置覆盖结构主要模态下最大变形位置时即可达到最佳控制效果；吸振器阵列与抑振器阵列均有一定的振动控制效果，与吸振器与受控对象间为点接触不同，面接触放大了阻尼在振动控制中的作用，因此抑振器阵列的振动控制效果更为明显。

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	程一鹏1
	彭子龙1
	温华兵1
	宋昊2
	郭有松3

关键词 ：动力吸振, 抑振器, 多模态控制, 橡胶基体

Abstract：For the purpose of structural low-frequency vibration control, a multi-mode suppressor was designed based on the principle of dynamic vibration absorber (DVA). In order to study the vibration suppression effect of DVAs array and vibration suppressors array, dynamic coupling model of four-edge simply supported plate attached with DVAs array was established, vibration control effect of DVAs array was verified; A multi-mode low-frequency vibration suppressor was established, whose main component is rubber plate attached with mass block, rubber base attached with metal cylindrical shell. Axial resonance modal frequency of each component was theoretically calculated, geometrical parameters and material parameters of vibration suppressor was adjusted based on DVA parameters, vibration control effect of vibration suppressors array was verified by simulation and experiment. Results shows that: the best vibration control effect can be reached when biggest deformation location is covered by DVAs array or vibration suppressors array; both DVAs array and the vibration suppressors array have certain vibration control effect, different from the point contact between the vibration absorber and the controlled object, the surface contact amplifies the damping effect in vibration control, so the vibration control effect of the vibration suppressors array is more obvious.

Key words： dynamic vibration absorber (DVA) vibration suppressor multi-mode vibration control rubber base

收稿日期: 2021-09-17 出版日期: 2023-02-15

引用本文:

程一鹏1，彭子龙1，温华兵1，宋昊2，郭有松3. 基于动力吸振原理的低频多模态抑振器设计[J]. 振动与冲击, 2023, 42(3): 150-158.
CHENG Yipeng1, PENG Zilong1, WEN Huabing1, SONG Hao2, GUO Yousong3. Design of low-frequency multi-mode vibration suppressor based on dynamic vibration absorption principle. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(3): 150-158.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2023/V42/I3/150

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