热环境中功能梯度圆柱壳声辐射特性研究

姚熊亮, 叶曦, 王献忠

姚熊亮, 叶曦, 王献忠. 热环境中功能梯度圆柱壳声辐射特性研究[J]. 工程力学, 2013, 30(6): 334-339. DOI: 10.6052/j.issn.1000-4750.2012.02.0115
引用本文: 姚熊亮, 叶曦, 王献忠. 热环境中功能梯度圆柱壳声辐射特性研究[J]. 工程力学, 2013, 30(6): 334-339. DOI: 10.6052/j.issn.1000-4750.2012.02.0115
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YAO Xiong-liang, YE Xi, WANG Xian-zhong. THE ACOUSTIC RADIATION CHARACTERISTICS OF FUNCTIONALLY GRADED CYLINDRICAL SEHLLS IN THERMAL ENVIRONMENT[J]. Engineering Mechanics, 2013, 30(6): 334-339. DOI: 10.6052/j.issn.1000-4750.2012.02.0115
Citation: YAO Xiong-liang, YE Xi, WANG Xian-zhong. THE ACOUSTIC RADIATION CHARACTERISTICS OF FUNCTIONALLY GRADED CYLINDRICAL SEHLLS IN THERMAL ENVIRONMENT[J]. Engineering Mechanics, 2013, 30(6): 334-339. DOI: 10.6052/j.issn.1000-4750.2012.02.0115
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热环境中功能梯度圆柱壳声辐射特性研究

  • 哈尔滨工程大学船舶工程学院，黑龙江，哈尔滨150001

基金项目: 国家自然科学基金重点项目(50939002)
详细信息
    作者简介:

    姚熊亮(1963―)，男，四川成都人，教授，博士，博导，从事船舶振动与噪声控制研究(E-mail:xiongliangyao@gmail)；王献忠(1986―)，男，河南安阳人，博士生，从事振动与噪声控制研究(E-mail:xianzhongwang00@163.com).

    通讯作者:

    叶曦(1987―)，男，浙江嘉兴人，博士生，从事振动与噪声控制研究(E-mail:ydx20032003@gmail.com).

THE ACOUSTIC RADIATION CHARACTERISTICS OF FUNCTIONALLY GRADED CYLINDRICAL SEHLLS IN THERMAL ENVIRONMENT

  • College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China

摘要

    摘要
  • 摘要: 基于经典壳体理论，推导了热环境下，流场中功能梯度圆柱壳的受迫振动方程，研究了不同温度分布方式、壳体材料参数以及周围流场参数对功能梯度圆柱壳声辐射特性的影响。研究结果表明：温度变化会引起功能梯度圆柱壳材料特性的改变，在壳体内产生热应力，影响流场中壳体的声辐射特性。温度变化对不同频段壳体辐射声功率的影响不同。重流体中，温度变化对声功率的影响随着频率的增高而增大；轻流体中，温度升高使频率较低时的声功率峰值向低频方向移动，且峰值减小，当接近环频率时，随着温度升高，辐射声功率下降。均匀升温对壳体声辐射特性的影响高于非均匀升温。非均匀升温时，重流体中体积分数指数对辐射声功率的影响比轻流体中更明显，且主要体现在对峰值位置的影响。
    Abstract: Based on the classical shell theory,the forced vibration equations of functionally graded cylindrical shells in the thermal environment with fluid are deduced.The influences of different temperature distribution patterns,shell material parameters and surrounding fluid field parameters on sound radiation induced by functionally graded cylindrical shells are studied.The results show that the temperature variation will change the shell material properties,and generate the thermal stress in the shell,which will impact the characteristics of sound radiation from the shell in the fluid field.The influence of temperature variation is different on the sound power in different frequencies.In the heavy fluid,the impact of temperature variation to the sound power is enhanced with the rising of frequency.In the light fluid,the peak value of sound power is decreased and moved to the low-frequency with the rising of temperature when the frequency is lower,and the sound power near the loop frequency is reduced as well.The influence of uniform temperature rise on sound radiation characteristics is more obvious than that of no-uniform temperature rise.With the no-uniform temperature rise,the impact of volume fraction exponent to sound power in the heavy fluid is more apparent than that in the light fluid,and is embodied in the peak position primarily.
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    • 参考文献(12)
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出版历程
  • 收稿日期:  2013-06-26
  • 修回日期:  2013-06-26
  • 刊出日期:  2013-06-24

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