摇摆双调谐质量阻尼器参数优化及动力性能研究

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振动与冲击 ›› 2023, Vol. 42 ›› Issue (9) : 275-283.

论文

杜永峰1,2，李炜枫1，李虎1

作者信息 +

Parametric optimization and dynamic performance of rocking double-tuned mass damper

DU Yongfeng1,2, LI Weifeng1, LI Hu1

Author information +

文章历史 +

摘要

本文提出了一种具有更广调频宽度的摇摆双调谐质量阻尼器（RDTMD）。首先，建立了单自由度RDTMD减振系统在简谐激励作用下的动力方程，推导得出其位移动力放大系数表达式；然后，基于RDTMD的优化评价函数，编译参数优化程序，获得RDTMD的全局最优参数以及条件最优参数；接着，探讨了阻尼器各参数对系统动力放大系数和调频宽度的影响规律，并对影响其鲁棒性的关键参数做了分析；最后，与传统DTMD、MTMD、TMD的减振效果和鲁棒性做了对比分析。分析结果表明：采用RDTMD对结构进行控制可有效降低主结构的动力响应；RDTMD的调频宽度更广，提高了阻尼器对主结构高阶振型的控制能力；在对装置鲁棒性的影响更大的主结构固有频率方面，RDTMD的鲁棒性明显优于其他同类阻尼器，是一种理想的减振控制装置。

Abstract

This paper proposes a rocking dual-tuned mass damper (RDTMD) with a wider frequency modulation width. Firstly, the dynamic equation of the single-degree-of-freedom RDTMD vibration reduction system under the action of simple harmonic excitation is established, and the expression of its displacement dynamic amplification coefficient is derived. Then, based on the optimization evaluation function of RDTMD, the parameter optimization program is compiled to obtain the global RDTMD The optimal parameters and conditional optimal parameters; then, the influence law of each parameter of the damper on the system dynamic amplification factor and frequency modulation width is discussed, and the key parameters affecting its robustness are analyzed; finally, with the traditional DTMD, MTMD , The vibration reduction effect and robustness of TMD were compared and analyzed. The analysis results show that the use of RDTMD to control the structure can effectively reduce the dynamic response of the main structure; the wider frequency modulation width of RDTMD improves the damper's ability to control the high-order vibration shapes of the main structure; when the impact on the robustness of the device is greater. In terms of the natural frequency of the main structure, the robustness of RDTMD is obviously better than other similar dampers, and it is an ideal vibration reduction control device.

导出引用

杜永峰1,2，李炜枫1，李虎1. 摇摆双调谐质量阻尼器参数优化及动力性能研究[J]. 振动与冲击, 2023, 42(9): 275-283

DU Yongfeng1,2, LI Weifeng1, LI Hu1. Parametric optimization and dynamic performance of rocking double-tuned mass damper[J]. Journal of Vibration and Shock, 2023, 42(9): 275-283

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