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首页> 外文期刊>Shock and vibration >Modelling Bending Wave Transmission across Coupled Plate Systems Comprising Periodic Ribbed Plates in the Low-, Mid-, and High-Frequency Ranges Using Forms of Statistical Energy Analysis
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Modelling Bending Wave Transmission across Coupled Plate Systems Comprising Periodic Ribbed Plates in the Low-, Mid-, and High-Frequency Ranges Using Forms of Statistical Energy Analysis

机译：使用统计能量分析的形式，对低频，中频和高频范围内包含周期性肋板的耦合板系统之间的弯曲波传输进行建模

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摘要

Prediction of bending wave transmission across systems of coupled plates which incorporate periodic ribbed plates is considered using Statistical Energy Analysis (SEA) in the low- and mid-frequency ranges and Advanced SEA (ASEA) in the high-frequency range. This paper investigates the crossover from prediction with SEA to ASEA through comparison with Finite Element Methods. Results from L-junctions confirm that this crossover occurs near the frequency band containing the fundamental bending mode of the individual bays on the ribbed plate when ribs are parallel to the junction line. Below this frequency band, SEA models treating each periodic ribbed plate as a single subsystem were shown to be appropriate. Above this frequency band, large reductions occur in the vibration level when propagation takes place across successive bays on ribbed plates when the ribs are parallel to the junction. This is due to spatial filtering; hence it is necessary to use ASEA which can incorporate indirect coupling associated with this transmission mechanism. A system of three coupled plates was also modelled which introduced flanking transmission. The results show that a wide frequency range can be covered by using both SEA and ASEA for systems of coupled plates where some or all of the plates are periodic ribbed plates.
机译：考虑使用低频和中频范围内的统计能量分析（SEA）和高频范围内的高级SEA（ASEA）预测结合了周期性肋板的耦合板系统之间的弯曲波传输。本文通过与有限元方法的比较，研究了从SEA预测到ASEA的交叉。 L型连接的结果证实，这种交叉发生在肋骨平行于接合线时，在包含肋板上单个隔间的基本弯曲模式的频带附近发生。在此频段以下，将SEA模型视为每个周期性肋板作为单个子系统是合适的。在此频段之上，当肋骨平行于接合处时，在肋板上连续的隔间进行传播时，振动水平将大大降低。这是由于空间滤波；因此，有必要使用ASEA，它可以结合与此传动机构相关的间接耦合。还模拟了三个耦合板的系统，该系统引入了侧翼传动。结果表明，对于部分或全部板为周期性肋板的耦合板系统，通过同时使用SEA和ASEA可以覆盖较宽的频率范围。

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  • 来源
    《Shock and vibration》 |2015年第6期|467875.1-467875.19|共19页
  • 作者

    Yin Jianfei; Hopkins Carl;

  • 作者单位

    Natl Univ Def Technol, Lab Sci & Technol Integrated Logist Support, Vibrat & Acoust Res Grp, Changsha 410073, Hunan, Peoples R China;

    Univ Liverpool, Sch Architecture, Acoust Res Unit, Liverpool L69 7ZN, Merseyside, England;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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