Vibration Reduction Effect of Cantilever Type Vibration Absorbers in Multi-frequency Band

doi:10.3969/j.issn.1006-1355.2017.04.039

›› 2017, Vol. 37 ›› Issue (4): 197-200.DOI: 10.3969/j.issn.1006-1355.2017.04.039

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Vibration Reduction Effect of Cantilever Type Vibration Absorbers in Multi-frequency Band

Received:2017-02-22 Revised:2017-03-17 Online:2017-08-18 Published:2017-08-18

悬臂梁式动力吸振器多频减振研究

周荣亚

（陕西铁路工程职业技术学院，陕西渭南 714000 ）

通讯作者: 周荣亚

Abstract

摘要：

将悬臂梁作为动力吸振器附加在振动主结构上来达到振动抑制的目的，数值计算分析表明悬臂梁式动力吸振器具有多频减振特性。按照模态理论建立基于悬臂梁的具有集中参数的等效复式动力吸振器模型，悬臂梁的每一阶模态作为一个自由度的弹簧质量系统，把悬臂梁每阶模态的有效模态质量和等效模态刚度作为每一自由度弹簧质量系统的集中质量和刚度。用悬臂梁式动力吸振器的附加动刚度验证等效复式动力吸振器模型的正确性。将悬臂梁式动力吸振器附加在主梁末端，调谐悬臂梁式动力吸振器的前4阶模态达到对主悬臂梁的多频减振效果，证实了悬臂梁式动力吸振器多频减振特性。

关键词: 振动与波, 悬臂梁, 复式动力吸振器, 有效模态质量, 多频减振

CLC Number:

TB535.1

周荣亚. 悬臂梁式动力吸振器多频减振研究[J]. 噪声与振动控制, 2017, 37(4): 197-200.

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Vibration Reduction Effect of Cantilever Type Vibration Absorbers in Multi-frequency Band

悬臂梁式动力吸振器多频减振研究

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