潮流水轮机优化设计中复合喷管的模态分析

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-06-24 DOI:10.3329/jname.v18i1.53193

H. Laaouidi, M. Tarfaoui, M. Nachtane, O. Lagdani

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引用次数: 3

摘要

结构振动监测和运行模态分析显然是有效控制结构安全和运行性能的必要条件。为了满足工业需求，通常与质量增益问题有关，杂化提供了一种极好的方法来提高复合材料的断裂强度，同时保持足够的机械性能，用于海洋可再生能源应用。在此背景下，本工作旨在研究潮汐涡轮喷管的结构模态分析，以及混合材料(碳/玻璃)对三种层压板固有频率和相应模态振型的影响。采用ABAQUS有限元软件进行模态分析。结果表明，堆积顺序对喷嘴的固有频率有相当大的影响。此外，还发现所研究的三种层压板不存在共振效应。

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Modal analysis of composite nozzle for an optimal design of a tidal current turbine

Monitoring of structural vibrations and operational modal analysis are clearly essential to effectively control structural safety and the operational behavior of tidal current turbines. In order to satisfy industrial requirements, generally related to a mass gain problem, hybridization provides an excellent method to improve the breaking strength of composite materials, while keeping adequate mechanical performance for marine renewable energy applications. In this context, this work aims to study the structural modal analysis of a tidal turbine nozzle and the effect of hybrid materials (carbon/Glass) on the natural frequencies and corresponding mode shapes of the three laminates. The modal analysis was calculated by the Finite Element Method using ABAQUS software. According to the results, the stacking sequence has a considerable impact on the natural frequency of the nozzle. Furthermore, it is also found that the resonance effect does not appear for the three laminates under investigation.

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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.