基于附板的结构振动抑制与传递衰减特性研究

向建华;廖日东;蒲大宇

振动与冲击 ›› 2010, Vol. 29 ›› Issue (1) : 12-16.

PDF(1952 KB)
PDF(1952 KB)
振动与冲击 ›› 2010, Vol. 29 ›› Issue (1) : 12-16.
论文

基于附板的结构振动抑制与传递衰减特性研究

  • 向建华;廖日东;蒲大宇
作者信息 +

Study on Structural Vibration Suppression and Transfer AttenuationBased on additional plate

  • XIANG Jian-hua;LIAO Ri-dong;PU Da-yu
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文章历史 +

摘要

针对在侧板上连接附板所形成的T型连接结构,开展了振动衰减特性的机理分析。在此基础上,运用有限元法系统地探讨了附板各结构参数变化对结构振动的抑制和传递衰减规律,并将研究成果应用到内燃机油底壳挡油板的改进设计中。结果表明,附板厚度相比其它结构参数能更显著地降低局部区域的振幅,衰减振动的传递;双层附板与增加板厚有相同的振动抑制和传递衰减变化趋势,但其效果要好于单层附板厚度增加。

Abstract

Aiming at a T-shape structure formed by a lateral plate and an additional plate, the theoretical analysis of vibration attenuation characteristics is executed. Using the finite element method, the rules of the additional plate’s various parameters versus structural vibration suppression and transfer attenuation are systematically studied. Based on these conclusions, the oil baffle of an oil pan is modified. The research results show that, compared with other structural parameters of the oil baffle, the plate thickness can more significantly decrease the amplitude of local area and weaken the transfer of vibration. Moreover, double-layer additional plate has the same change trend of vibration suppression and transfer attenuation with plate thickness’s addition, but has better characteristics.

关键词

T型结构 / 振动抑制 / 传递衰减 / 挡油板

Key words

T-shape structure / Vibration Suppression / Transfer attenuation / Oil baffle

引用本文

导出引用
向建华;廖日东;蒲大宇. 基于附板的结构振动抑制与传递衰减特性研究[J]. 振动与冲击, 2010, 29(1): 12-16
XIANG Jian-hua;LIAO Ri-dong;PU Da-yu. Study on Structural Vibration Suppression and Transfer AttenuationBased on additional plate[J]. Journal of Vibration and Shock, 2010, 29(1): 12-16

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