论微结构梁的旋转惯性及其变化

IF 1.9 4区工程技术 Q3 MECHANICS

Mechanics Research Communications Pub Date : 2023-12-22 DOI:10.1016/j.mechrescom.2023.104239

Victor A. Eremeyev , Isaac Elishakoff

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引用次数: 0

摘要

我们讨论了经典的旋转惯性概念，并针对微结构梁进行了扩展，引入了新的微惯性参数，作为对微结构变化的额外动态响应。由梁或板格超材料制成的纤细结构不仅可能表现出较大的平移和旋转，还可能表现出内部结构的一般变形。在此，我们考虑了一些梁状结构的例子，并推导出它们的惯性特性，包括有效质量密度、旋转惯性和微惯性。与增强运动学相关的扩展动态特性可能是描述类折纸结构或其他梁晶格超材料的关键。

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On rotary inertia of microstuctured beams and variations thereof

We discuss the classic rotary inertia notion and extend it for microstructured beams introducing new microinertia parameters as an additional dynamic response to microstructure changes. Slender structures made of beam- or platelet-lattice metamaterials may exhibit not only large translations and rotations but also general deformations of inner structure. Here we considered a few examples of beam-like structures and derive their inertia properties which include effective mass density, rotary inertia and microinertia. Extended dynamic characteristics related to enhanced kinematics may be crucial for description of origami-like structures or other beam-lattice metamaterials.

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来源期刊

Mechanics Research Communications 物理-力学

CiteScore

4.10

自引率

4.20%

发文量

114

审稿时长

9 months

期刊介绍： Mechanics Research Communications publishes, as rapidly as possible, peer-reviewed manuscripts of high standards but restricted length. It aims to provide: • a fast means of communication • an exchange of ideas among workers in mechanics • an effective method of bringing new results quickly to the public • an informal vehicle for the discussion • of ideas that may still be in the formative stages The field of Mechanics will be understood to encompass the behavior of continua, fluids, solids, particles and their mixtures. Submissions must contain a strong, novel contribution to the field of mechanics, and ideally should be focused on current issues in the field involving theoretical, experimental and/or applied research, preferably within the broad expertise encompassed by the Board of Associate Editors. Deviations from these areas should be discussed in advance with the Editor-in-Chief.