Numerical investigation of the structural-response analysis of a glass/epoxy composite blade for small-scale vertical-axis wind turbine

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-07-27 DOI:10.1177/0309524x241259945

H. Nezzar, F. Ferroudji, T. Outtas

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Abstract

A Vertical Axis Wind Turbine (VAWT) comprises multiple parts constructed from different materials. This complexity presents challenges in designing the blade structure. In this study, we investigated a structural optimization of a small-scale blade for a VAWT, with Finite Element Analysis (FEA) model. The purpose is to minimize the blade mass while adhering to a suite of critical wind conditions according to the IEC 61400-2 Standard. The structure made from Aluminum material simulates structure’s global behavior to determine maximum stress and deflection levels. The same structure is modeled using Glass/Epoxy composite for optimizing its design. Twenty combinations of Glass/Epoxy layers, varying in ply thickness and orientation, are simulated to find the most suitable combination. Results demonstrated that the optimization case [45°/90°/0°/−45°] obtained the minimum values of stress and deflection, is 59% lighter than Aluminum blade (initial design). The designed Glass/Epoxy composite blade is acceptable and recommended for structural safety.

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小型垂直轴风力涡轮机玻璃/环氧树脂复合材料叶片结构响应分析的数值研究

垂直轴风力涡轮机（VAWT）由不同材料制成的多个部件组成。这种复杂性给叶片结构设计带来了挑战。在这项研究中，我们利用有限元分析（FEA）模型对小型垂直轴风力涡轮机叶片的结构进行了优化。目的是根据 IEC 61400-2 标准，在满足一系列临界风况条件的同时，最大限度地减少叶片质量。由铝材料制成的结构模拟结构的整体行为，以确定最大应力和挠度水平。使用玻璃/环氧树脂复合材料对同一结构进行建模，以优化其设计。模拟了玻璃/环氧层的 20 种组合，层厚和方向各不相同，以找到最合适的组合。结果表明，优化方案 [45°/90°/0°/-45°] 的应力和挠度值最小，比铝制叶片（初始设计）轻 59%。所设计的玻璃/环氧树脂复合材料叶片在结构安全方面是可以接受的，值得推荐。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.