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首页> 外文期刊>Shock and vibration >A Hybrid Lumped Parameters/Finite Element/Boundary Element Model to Predict the Vibroacoustic Characteristics of an Axial Piston Pump
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A Hybrid Lumped Parameters/Finite Element/Boundary Element Model to Predict the Vibroacoustic Characteristics of an Axial Piston Pump

机译：混合参数/有限元/边界元混合模型预测轴向柱塞泵的振动声特性

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摘要

Low noise axial piston pumps become the rapid increasing demand in modern hydraulic fluid power systems. This paper proposes a systematic approach to simulate the vibroacoustic characteristics of an axial piston pump using a hybrid lumped parameters/finite element/boundary element (LP/FE/BE) model, and large amount of experimental work was performed to validate the model. The LP model was developed to calculate the excitation forces and was validated by a comparison of outlet flow ripples. The FE model was developed to calculate the vibration of the pump, in which the modeling of main friction pairs using different spring elements was presented in detail, and the FE model was validated using experimental modal analysis and measured vibrations. The BE model was used to calculate the noise emitted from the pump, and a measurement of sound pressure level at representative field points in a hemianechoic chamber was conducted to validate the BE model. Comparisons between the simulated and measured results show that the developed LP/FE/BE model is effective in capturing the vibroacoustic characteristics of the pump. The presented approach can be extended to other types of fluid power components and contributes to the development of quieter fluid power systems.
机译：低噪声轴向柱塞泵成为现代液压流体动力系统中快速增长的需求。本文提出了一种使用集总参数/有限元/边界元（LP / FE / BE）混合模型模拟轴向柱塞泵振动声学特性的系统方法，并进行了大量实验工作以验证该模型。 LP模型用于计算激振力，并通过比较出口流量波动进行了验证。开发了用于计算泵振动的有限元模型，其中详细介绍了使用不同弹簧元件的主摩擦副建模，并通过实验模态分析和实测振动验证了有限元模型。 BE模型用于计算泵发出的噪声，并在半消声室的代表性场点进行声压级测量，以验证BE模型。模拟结果和测量结果之间的比较表明，开发的LP / FE / BE模型可以有效地捕获泵的振动声特性。提出的方法可以扩展到其他类型的流体动力组件，并有助于开发更安静的流体动力系统。

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  • 来源
    《Shock and vibration》 |2017年第8期|367-377|共11页
  • 作者

    Ye Shaogan; Zhang Junhui; Xu Bing; Song Wei; Zhu Shiqiang;

  • 作者单位

    Zhejiang Univ Ocean Coll Zhoushan 316021 Peoples R China|Zhejiang Univ State Key Lab Fluid Power & Mechatron Syst Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Fluid Power & Mechatron Syst Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ Ocean Coll Zhoushan 316021 Peoples R China;

  • 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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