弹性地基上具有轴向载荷的充液周期管弯曲振动带隙研究

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (18) : 128-131.

论文

弹性地基上具有轴向载荷的充液周期管弯曲振动带隙研究

迟乾坤1,2，温激鸿1,2，郁殿龙1,2

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Band gap of the flexural vibration in the periodic pipe conveying fluid with axial force on elastic foundation

Chi Qiankun1,2 Wen Jihong1,2 Yu Dianlong1,2

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文章历史 +

摘要

弹性地基以及外力载荷都会影响结构的振动传递特性。利用传递矩阵法，研究了弹性地基上具有轴向载荷的一维充液管路弯曲振动带隙特性。研究表明，弹性地基可以抑制某特定频率下弯曲波的传播，但不是带隙的产生原因。弹性地基和轴向载荷均可以影响充液周期管路的带隙频率，而弹性地基则可以明显提高具有轴向载荷管路系统的稳定性。

Abstract

The propagation properties of the flexural vibration are affected by the elastic foundations and external forces. The band gap characteristics in the pipe conveying fluid with axial force on elastic foundations are analyzed by using the transfer matrix method. The elastic foundation can dampen the propagation of the flexural wave under some pivotal frequency, and this attenuation is not the causation of the periodic pipe. Both the elastic foundation and axial forces can affect the gap frequency in the pipe, but the elastic foundation can enhance the stability of the pipe with axial forces obviously.

导出引用

迟乾坤;温激鸿;郁殿龙;. 弹性地基上具有轴向载荷的充液周期管弯曲振动带隙研究[J]. 振动与冲击, 2012, 31(18): 128-131

Chi Qiankun; Wen Jihong; Yu Dianlong;. Band gap of the flexural vibration in the periodic pipe conveying fluid with axial force on elastic foundation[J]. Journal of Vibration and Shock, 2012, 31(18): 128-131