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高温高声压下多孔金属材料吸声特性研究

周汉 吴九汇 胡志平

周汉, 吴九汇, 胡志平. 高温高声压下多孔金属材料吸声特性研究[J]. 力学学报, 2013, 45(2): 229-235. doi: 10.6052/0459-1879-12-161
引用本文: 周汉, 吴九汇, 胡志平. 高温高声压下多孔金属材料吸声特性研究[J]. 力学学报, 2013, 45(2): 229-235. doi: 10.6052/0459-1879-12-161
Zhou Han, Wu Jiuhui, Hu Zhiping. SOUND ABSORBING PROPERTY OF POROUS METAL MATERIAL AT HIGH TEMPERATURE AND HIGH SOUND PRESSURE LEVEL[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(2): 229-235. doi: 10.6052/0459-1879-12-161
Citation: Zhou Han, Wu Jiuhui, Hu Zhiping. SOUND ABSORBING PROPERTY OF POROUS METAL MATERIAL AT HIGH TEMPERATURE AND HIGH SOUND PRESSURE LEVEL[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(2): 229-235. doi: 10.6052/0459-1879-12-161

高温高声压下多孔金属材料吸声特性研究

doi: 10.6052/0459-1879-12-161
基金项目: 国家重点基础研究发展计划(2011CB610306)、国家自然科学基金(51075325)和教育部新世纪优秀人才支持计划(NCET-09-0644)资助项目.
详细信息
    通讯作者:

    吴九汇,教授,主要研究方向:纳米力学、光子晶体/声子晶体、机械动力学.E-mail:ejhwu@mail.xjtu.edu.cn

  • 中图分类号: TG146.1

SOUND ABSORBING PROPERTY OF POROUS METAL MATERIAL AT HIGH TEMPERATURE AND HIGH SOUND PRESSURE LEVEL

Funds: The project was supported by the National Basic Research Program of China (2011CB610306), the National Natural Science Foundation of China (51075325) and the Program for New Century Excellent Talents in University (NCET-09-0644).
  • 摘要: 在多孔金属材料的湍流统计理论的基础之上, 考虑温度高声压对多孔材料声学参数的影响, 得到适用于高温高声压条件下多孔金属材料的分析模型. 计算了不同温度和不同声压级条件下声压幅值与金属纤维直径、孔隙率等物理参数的关系. 研究发现其他参数不变, 在高温条件下, 随温度升高多孔金属材料的声压幅值增大; 在高声压条件下, 随着声压的升高多孔金属材料的声压幅值增大. 所得理论结果与已有的实验中的规律符合良好,为多孔金属材料在高温、高声压条件下的减振降噪设计提供了理论基础.

     

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出版历程
  • 收稿日期:  2012-05-28
  • 修回日期:  2012-10-30
  • 刊出日期:  2013-03-18

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