Dynamic modelling and vibration behavior of axially moving honeycomb sandwich plates immersed in fluid

IF 6.6 1区工程技术 Q1 ENGINEERING, CIVIL

Thin-Walled Structures Pub Date : 2025-09-09 DOI:10.1016/j.tws.2025.113967

Tianhao Yang, Kai Zhou, Yake Li, Dao Gong, Jinsong Zhou, Leibin Wen

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引用次数: 0

Abstract

An energy-based analytical method is proposed to describe the vibration and stability behaviors of axially moving HSTP immersed in fluid under general boundary conditions. General boundary conditions, such as simply supported, clamped and free constraints, can be considered by different penalty parameter values. The proposed method systematically accounts for the influence of the geometric parameters of the honeycomb core and the fluid on the model. By integrating first-order shear deformation theory (FSDT) with linear potential flow theory, the energy functional formulations for the structure considered are meticulously derived. The Hamilton’s principle is applied to formulate the governing equations for the axially moving HSTP immersed in fluid, and a unified analytical solution for the cases with general boundary conditions is derived. The accuracy of the presented method is validated through comparisons with commercial software results and published reference data. Furthermore, parametric analyses are carried out to evaluate how key parameters including axially moving velocity, fluid density, face sheet thickness, core wall dimensions, core height, unit cell geometry and structural damping coefficient influence the dynamic behavior of the HSTP. Numerical results demonstrate that these parameters significantly affect the stability and vibration behavior of the HSTP in fluid environments. The findings of this research can serve as a theoretical foundation for the dynamic optimization design of HSTP structures immersed in fluid environments.

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轴向移动蜂窝夹层板浸入流体的动力学建模与振动特性

提出了一种基于能量的解析方法来描述在一般边界条件下轴向移动的HSTP浸入流体中的振动和稳定行为。一般的边界条件，如简支约束、夹紧约束和自由约束，可以用不同的罚参数值来考虑。该方法系统地考虑了蜂窝芯的几何参数和流体对模型的影响。将一阶剪切变形理论（FSDT）与线性势流理论相结合，导出了所考虑结构的能量泛函表达式。应用Hamilton原理建立了浸入流体中轴向运动HSTP的控制方程，导出了具有一般边界条件情况下的统一解析解。通过与商业软件结果和已发表的参考数据的比较，验证了该方法的准确性。此外，还进行了参数分析，以评估轴向移动速度、流体密度、面板厚度、岩心壁尺寸、岩心高度、单元几何形状和结构阻尼系数等关键参数对HSTP动力性能的影响。数值计算结果表明，这些参数对HSTP在流体环境中的稳定性和振动特性有显著影响。研究结果可为浸没在流体环境中的HSTP结构的动态优化设计提供理论依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.