基于TSVM和sma的网格复合夹层板动力学建模及振动控制评价

IF 5.7 1区工程技术 Q1 ENGINEERING, CIVIL

Thin-Walled Structures Pub Date : 2025-04-08 DOI:10.1016/j.tws.2025.113280

Hui Li , Zhihan Dai , Zhou Qiao , Jin Zhou , Haijun Wang , Kaixiang Li , Fei Zhang , Hongbo Cui , Jinghan Li , Haiyang Zhang , Hang Cao , Xiangping Wang , Zhongwei Guan

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引用次数: 0

摘要

本文提出了一种嵌入温度敏感粘弹性材料（TSVM）和形状记忆合金（SMA）的网格复合夹层板（GCSP）的新型动态模型，该模型由一个网格功能核心和两个纤维增强聚合物表皮组成。该核心由一个矩形框架和多个网格功能单元（FU）组成，其中每个 FU 由一个网格框架、拉紧的 SMA 和一块 TSVM 组成，可通过调节内部温度主动控制刚度和阻尼。通过事先定义每个 FU 中 SMA 产生的恢复应力和与温度相关的 TSVM 材料参数，推导出动态方程来求解 TSVM-SMAs-GCSP 的振动参数。此外，还以具有六个 FU 的 TSVM-SMAs-GCSP 试样为例，说明了制备方法。为了验证所提出的模型和主动控制性能，采用冲击锤、正弦扫频激励以及非共振和共振激励技术，对该试样进行了不同控制温度和 FU 区域的振动测试。最后，评估了关键结构参数和控制参数对固有频率、阻尼比和共振响应的影响，并总结了宝贵的建议，以突出这种结构的主动控制能力。

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Dynamic modeling and vibration control evaluation of grid composite sandwich plates with TSVM and SMAs

This paper proposes a novel dynamic model of a grid composite sandwich plate (GCSP) embedded with temperature sensitive viscoelastic material (TSVM) and shape memory alloys (SMAs), which consists of a grid functional core and two fiber-reinforced polymer skins. This core comprises a rectangular frame and several grid functional units (FUs), in which each FU is composed of a grid frame, tightened SMAs and a piece of TSVM to actively control stiffness and damping by adjusting the internal temperature. The dynamic equations are derived to solve the vibration parameters of the TSVM-SMAs-GCSP, with the recovery stress produced by SMAs in each FU and the temperature-dependent material parameters of TSVM being defined in advance. Furthermore, using a TSVM-SMAs-GCSP specimen with six FUs as an example, the preparation method is illustrated. To validate the proposed model and active control performance, vibration tests with varying control temperatures and zones of FUs are conducted on this specimen, employing impact hammer, swept-sine excitation, and both non-resonant and resonant excitation techniques. Finally, the influences of critical structural and control parameters on natural frequencies, damping ratios and resonant responses are evaluated, with valuable suggestions being summarized to highlight the active control capability of such a structure.

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来源期刊

Thin-Walled Structures 工程技术-工程：土木

CiteScore

9.60

自引率

20.30%

发文量

801

审稿时长

66 days

期刊介绍： Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses. Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering. The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.