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自振脉冲气液射流振动分析

唐川林 胡东 张凤华 蔡书鹏

唐川林, 胡东, 张凤华, 蔡书鹏. 自振脉冲气液射流振动分析[J]. 力学学报, 2013, 45(4): 534-540. doi: 10.6052/0459-1879-12-239
引用本文: 唐川林, 胡东, 张凤华, 蔡书鹏. 自振脉冲气液射流振动分析[J]. 力学学报, 2013, 45(4): 534-540. doi: 10.6052/0459-1879-12-239
Tang Chuanlin, Hu Dong, Zhang Fenghua, Cai Shupeng. VIBRATION ANALYSIS OF THE SELF-EXCITED OSCILLATION PULSED AIR-WATER JET[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(4): 534-540. doi: 10.6052/0459-1879-12-239
Citation: Tang Chuanlin, Hu Dong, Zhang Fenghua, Cai Shupeng. VIBRATION ANALYSIS OF THE SELF-EXCITED OSCILLATION PULSED AIR-WATER JET[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(4): 534-540. doi: 10.6052/0459-1879-12-239

自振脉冲气液射流振动分析

doi: 10.6052/0459-1879-12-239
基金项目: 湖南省科技计划项目(2013SK3165); 湖南省自然科学基金项目(13JJ9013)和湖南省教育厅科研项目(12C0066)资助.
详细信息
    通讯作者:

    胡东,讲师,主要研究方向:高压水射流、流体机械.E-mail:hudong_9@126.com

  • 中图分类号: TP69

VIBRATION ANALYSIS OF THE SELF-EXCITED OSCILLATION PULSED AIR-WATER JET

Funds: The project was supported by the Projects of Hunan province science and Technology Department(2013SK3165), the Natural Science Foundation of Hunan Province (13JJ9013) and Nature Science Foundation of the Education Department of Hunan Province (12C0066).
  • 摘要: 从提高射流利用率出发, 在自振脉冲水射流喷嘴振荡腔上开孔自吸入空气, 以形成一种自振脉冲气液射流, 研 究其振荡频率以及打击力的实际影响因素.基于水声学与流体动力学原理建立自振脉冲气液射流频率模型, 并以悬臂梁为靶物, 通过考察射流冲击悬臂梁时的振动特性获得其时域及频域特征.结果表明, 自振脉冲气液射流的振荡频率随腔长增加单调递减, 随含气率变化存在极小值, 且在初始段发生骤变, 实测值与理论值相吻合;对应自振脉冲气液射流产生最大谐振峰值的最优腔长略小于自振脉冲水射流, 且前者最大谐振峰值较后者明显提高.

     

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出版历程
  • 收稿日期:  2012-09-03
  • 修回日期:  2013-03-03
  • 刊出日期:  2013-07-18

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