带碰撞的惯质调谐质量阻尼器对斜拉索涡激振动控制研究

李书进1, 曾文珑1, 张远进2

振动与冲击 ›› 2024, Vol. 43 ›› Issue (17) : 214-223.

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振动与冲击 ›› 2024, Vol. 43 ›› Issue (17) : 214-223.
论文

带碰撞的惯质调谐质量阻尼器对斜拉索涡激振动控制研究

  • 李书进1,曾文珑1,张远进2
作者信息 +

Pounding tuned mass damper-inerter for vortex-induced vibration control of cable stays

  • LI Shujin1, ZENG Wenlong1, ZHANG Yuanjin2
Author information +
文章历史 +

摘要

在以往惯质调谐质量阻尼器(TMDI)的研究基础上,引入非线性碰撞机制,提出一种带碰撞的新型惯质调谐质量阻尼器(PTMDI)来对斜拉索的涡激振动进行控制。该阻尼器不仅能减小装置尺寸,又能利用振子在碰撞过程中产生的加速度突变来提高惯质器的质量放大效应,在一定程度上解决传统惯质型阻尼器一端尽量固接的安装方式,布置上更为灵活。建立了设有该装置的斜拉索涡激减振控制方程,分析了拉索涡激振动特性,并对其减振性能进行了研究。对阻尼器惯容参数和碰撞参数的影响及优化问题进行了探讨,给出了最优参数的取值方法。算例表明,所提PTMDI能显著降低斜拉索的涡激振动响应,且在所提优化方法得到的最优参数下具有更为优越的控制能力。对于常遇风时拉索出现的多模态涡激振动控制分析表明,碰撞机制能使PTMDI的鲁棒性得到提升,对多模态涡激振动也有相当程度的控制效果。

Abstract

On the basis of previous research on the tuned mass damper-inerter(TMDI), by introducing the nonlinear collision mechanism, a novel inertial tuned mass damper with pounding(PTMDI) is proposed to control the vortex induced vibration of the stay cables. This damper not only reduces the size of the device, but also utilizes the sudden acceleration change generated by the oscillator during collision to improve the mass amplification effect of the inertial mass damper. To some extent, it solves the installation method of traditional inertial mass dampers that require consolidation at one end, and the arrangement is more flexible. The control equation for vortex induced vibration reduction of stay cable equipped with this device has been established, and the characteristics of vortex induced vibration of the cable have been analyzed, and their vibration reduction performance has been studied. On this basis, the influence and optimization of the inertia damper and pounding parameters were discussed, and the method for selecting the optimal parameters was provided. The numerical example shows that the proposed PTMDI can significantly reduce the vortex induced vibration response of stay cable, and has superior control ability under the optimal parameters obtained by the proposed optimization method. The control of multimodal vortex-induced vibration in cables that often encounter wind indicates that the pounding improves the robustness of PTMDI and has a considerable degree of control effect on the multimodal vortex-induced vibration.

关键词

斜拉索 / 涡激振动 / 振动控制 / 惯质阻尼器 / 碰撞减振

Key words

stay cables / vortex-induced vibration / vibration control / inerter mass damper / impact damping

引用本文

导出引用
李书进1, 曾文珑1, 张远进2. 带碰撞的惯质调谐质量阻尼器对斜拉索涡激振动控制研究[J]. 振动与冲击, 2024, 43(17): 214-223
LI Shujin1, ZENG Wenlong1, ZHANG Yuanjin2. Pounding tuned mass damper-inerter for vortex-induced vibration control of cable stays[J]. Journal of Vibration and Shock, 2024, 43(17): 214-223

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