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Vibration suppression of composite panel with variable angle tow design and inerter-based nonlinear energy sink

基于变角度纤维铺缝与惯容型非线性能量汇的复合材料层合板减振研究

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Abstract

This study investigates the vibration transmission and suppression of a laminated composite panel with variable angle tow (VAT) designs and an attached inerter-based passive nonlinear energy sink. Based on analytical and numerical methodologies, the substructure technique is used to obtain a steady-state dynamic response and the results are verified by experimental and analytical methods. It is demonstrated that fiber orientation has a significant impact on the natural frequencies. The dynamic responses and energy transmission path characteristics are determined and evaluated by forced vibration analysis. The main vibration transmission paths inside the structure are displayed using power flow density vectors. It is demonstrated that the dynamic responses of the plate can be changed considerably by using various fiber placement schemes and passive suppression devices. In addition, it is indicated that the vibration transmission paths are significantly influenced by the tailored fiber angles for improved dynamic performance. Our investigation enhances the understanding of enhanced vibration suppression designs of variable-stiffness composite plates with attached passive devices.

摘要

目的

工程复合材料结构经常受到动载荷而发生振动。本文研究通过变刚度纤维铺缝设计和附加惯容型非线性能量汇实现结构减振。

创新点

1. 本文发展子结构分析方法, 系统研究了纤维角度和不同非线性能量汇的设计参数对复合材料板结构受迫振动的位移和能量响应; 2. 从振动功率流角度研究变刚度复合材料层合板的受迫振动响应和减振性能。

方法

1. 通过子结构法, 研究线性和非线性无能量汇的各个参数对于整体结构在受迫振动下的能量传递的影响; 2. 通过仿真模拟, 研究变角度纤维铺层对结构自由振动和受迫振动响应的影响; 3. 通过实验研究, 获得复合材料板结构的自由频率, 并与解析法、仿真法所得结果进行交叉对比, 验证方法的准确性。

结论

1. 变角度纤维铺层设计可以有效地改善结构的自由振动与受迫振动响应; 2. 通过调整纤维的铺层角度, 可以改变主要模态振型和振动功率流的主要传递路径; 3. 非线性能量汇的使用可有效降低结构响应, 从而达到良好减振的效果。

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Acknowledgments

This work is supported by the National Natural Science Foundation of China (Nos. 12172185, U1809218, and U1864211), the Zhejiang Provincial Natural Science Foundation of China (Nos. LY22A020006, LD22E050011, and LQ23A020003), the Ningbo Municipal Natural Science Foundation of China (No. 2022J174), and the Ningbo Key Projects of Science and Technology Innovation 2025 Plan (No. 2021Z124).

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Contributions

Jian YANG designed the research. Chen ZHOU processed the corresponding data. Chen ZHOU wrote the first draft of the manuscript. Jian YANG and Chendi ZHU helped to organize the manuscript. Jian YANG and Yingdan ZHU revised and edited the final version.

Corresponding authors

Correspondence to Jian Yang  (杨建) or Yingdan Zhu  (祝颖丹).

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Chen ZHOU, Jian YANG, Yingdan ZHU, and Chendi ZHU declare that they have no conflict of interest.

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Zhou, C., Yang, J., Zhu, Y. et al. Vibration suppression of composite panel with variable angle tow design and inerter-based nonlinear energy sink. J. Zhejiang Univ. Sci. A 24, 653–672 (2023). https://doi.org/10.1631/jzus.A2200578

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  • DOI: https://doi.org/10.1631/jzus.A2200578

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