The impact experiment of underwater self-excited pulsed jet device was conducted by circulation experiment system of underwater jet. The impact time domain waveform were got. The time-frequency characteristic of impact was extracted by the method of integrating the second generation wavelet with Wigner-Ville distribution. The energy distribution law of impact frequency band was studied in inspiration and non-inspiration conditions, different confined pressure and target distance. The results show that there exists optimal below nozzle diameter that can make the impact time domain characteristic parameters maximizing. The impact energy of device mainly concentrates on low frequency band. Confining pressure, standoff distance and inspiration have large influence on frequency band energy. Inspiration has obvious influence on the impact frequency components, energy density distribution and pulse effect, but confining pressure and standoff distance only have great influence on the impact energy density distribution and pulse effect. The pressure of collision body measuring point reflects the state of energy accumulation and energy release of device, and has corresponding relationship with the impact energy density distribution.
1 X.Jiang, G.A.Siamas,K.Jagus.Physical modelling and advanced simulation of gas-liquid two-phase jet flows in atomication and sprays[J].Progress in Energy and Combustion Science. 2010,36:131-167.
2 Hirota,Yusaku1, Kanno,taru1,Fujiwara,Keiji1.Damage-free wafer cleaning by water and gas mixture jet[J]. IEEE International Symposium on Semiconductor Manufacturing
Conference Proceedings, 2005:219-222.
3 Chillman, Alex,Ramulu, M,Hashish, M Source. Water jet and water-air jet surface processing of a titanium alloy: A parametric evaluation[J].Journal of Manufacturing Science
and Engineering,2010,132(1): 1-10.
4 胡东,唐川林,张凤华.脉冲气液射流冲蚀特性实验分析[J].振动与冲击,2013,32(11):141-144
HU Dong, TANG Chuan-lin, ZHANG Feng-hua. Erosion characteristic of a pulsed air-water jet[J]. Journal of Vibration and Shock, 2013,32(11):141-144.
5 刘新阳,高传昌,赵礼等.自激脉冲淹没水射流装置性能试验研究[J].水力发电学报,2012,31(5):297-301.
LIU Xin-yang, GAO Chuan-chang, ZHAO Li, et al. Experimental study on performance of self-excitation pulse submerged water jet equipment[J]. Journal of Hydroelectric
Engineering, 2012, 31(5):297-301.
6 高传昌,赵礼,刘新阳等.淹没条件下自激脉冲射流冲蚀试验研究[J].排灌机械工程学报,2012,30(1):53-56.
GAO Chuan-chang, ZHAO Li, LIU Xin-yang. Experiment research on erosion of self-excited inspired pulsatile jet in submerge conditions[J]. Journal of Drainage and Irrigation
Machinery Engineering,2012,30(1):53-56.
7 唐川林,胡东,张凤华等.自振脉冲气液射流振动分析[J].力学学报,2013,45(4):534-539.
TANG Chuan-lin, HU Dong,ZHANG Feng-hua,et al. Vibration analysis of the self-excited oscillation pulsed air-water jet[J]. Chinese Journal of Theoretical and Applied
Mechanics,2013,45(4):534-539.
8 王萍辉,马飞.自激振动空化射流振动分析试验.[J]机械工程学报,2009,45(10):89-94.
WANG Ping-hui, MA Fei. Vibration analysis experiment of self-resonating cavitating water jet[J]. Journal of Mechanical Engineering,2009,45(10):89-94.
9 裴江红,唐川林,胡东.双腔室自激振荡喷嘴频率特性研究.[J]振动与冲击,2011,30(4):29-45.
PEI Jiang-hong,TANG Chuan-lin,HU Dong.Self-excited oscillation frequency feature of a pulsed water jet nozzle with double-chamber[J]. Journal of Vibration and Shock,
2011,30(4):29-45.
10 王健,李江云.自激式喷嘴的三维非定常空化模型仿真研究[J].武汉大学学报(工学版),2014,47(4):542-547.
WANG jian, LI Jiang-yun. Simulation study of three-dimensional unsteady cavitation model of self-excited pulse jet[J] .Engineering Journal of Wuhan University,
2014,47(4):542-547.
11 陈颂英,胡涛,曲延鹏等.低压大流量自激脉冲空化射流试验研究[J].工程热物理学报,2014,35(10):1964-1967.
CHEN Song-ying, HU Tao, QU Yan-peng, et al.Experimental research of self-excited pulsed cavitation jet in low-press and large-flux[J]. Journal of Engineering
Thermophysics, 2014,35(10):1964-1967.
12 王循明,王乐勤,焦磊.自激脉冲射流喷嘴参数对装置能耗影响分析[J] .工程热物理学报,2008,29(5):780-782.
WANG Xun-ming, WANG Le-qin, Jiao Lei. The energy loss analysis of the self-excited oscillation pulsed jet with parameters change[J]. Journal of Engineering
Thermophysics, 2008, 29(5):780-782.
13黄晓亮.自激吸气脉冲射流装置的吸气性能研究[D].郑州:华北水利水电大学,2012.
HUANG Xiao-liang. Research on inspiration performance of self-excited inspiratory pulsed jet device[D].Zhengzhou: North China University of Water Resources
and Electric Power,2012.
14 孙世钧,李秀坤.经验模态分解WVD方法的水下目标特征提取[J].哈尔滨工程大学学报,2013,34(8):967-971.
SUN Shi-jun, LI Xiu-kun. Underwater target feature extraction using empirical mode decomposition and WVD method[J]. Journal of Harbin Engineering University,2013,3
4(8):967-971.
15 郭奇,刘卜瑜,史立波等.基于二次EEMD的Winger-Ville分布旋转机械故障信号分析及试验研究[J].振动与冲击,2012,31(13):129-133.
GUO Qi, LIU Bo-yu, SHI Li-bo, et al.Experimental study and fault signals analysis of rotating machinery based on dual EEMD and Wigner-ville Distribution[J].Journal of
Vibration and Shock, 2012,31(13):129-133.
16潘虹.基于LMD与Wigner一Ville分布的水力机组振动信号分析[J].排灌机械工程学报,2014,32(3):220-224.
PAN Hong.Analysis on vibration signal of hydropower unit based on localmean decomposition and Wigner-Ville distribution[J]. Journal of Drainage and Irrigation
MachineryEngineering,2014,32(3):220-224.
17 郭洪涛,徐来武,吴继飞等.非平稳脉动压力数据的SPWVD时频分析技术研究[J].实验流体力学,2011,25(5):40-44.
GUO Hong-tao, XU Lai-wu, WU Ji-fei, et al. Investigation on SPWVD time-frequency analysis technique for unstationary fluctuating pressure data[J]. Journal of
Experiments in Fluid Mechanics,2011,25(5):40-44.
18高立新,殷海晨,张建宇等.第二代小波分析在轴承故障诊断中的应用[J].北京工业大学学报,2009,35(5):577-581.
GAO Li-xin, YIN Hai-chen, ZHANG Jian-yu, et al. An application of the second generation of wavelet transform in the fault dagnosis of tolling bearings[J]. Journal of Beijing
University of Technology,2009,35(5):577-581.
19蔡共宣,林富生.工程测试与信号处理（第二版）[M].武汉: 华中科技大学出版社,2011.
CAI Gong-xuan, LIN Fu-sheng. Engineering Testing & Signal Processing[M].Wuhan:Huazhong University of Science and Technology Press,2011.
20中国生,敖丽萍,赵奎.基于小波包能量谱爆炸参量对爆破振动信号能量分布的影响[J].爆炸与冲击,2009,29(3): 300-305.
ZHONG Guo-sheng, AO Li-ping, ZHAO Kui. Influence of explosion parameters on energy distribution of blasting vibration signal based on wavelet packet energy spectrum
[J].Explosion and Shock Waves,2009,29(3): 300-305.
21 张贤达.现代信号处理[M].(第二版).北京:清华大学出版社,2010.
ZHANG Xin-da.Modern Signal Processing[M]. (second edition).Beijing:Tsinghua University press ,2010.
22 冯志鹏,李学军,褚福磊.基于平衡小波包分解的水轮机非平稳振动信号希尔伯特谱分析[J].中国电机工程学报,2006,26(12):79-84.
FENG Zhi-peng, LI Xue-jun, CHU Fu-lei. Application of stationary wavelet packets decomposition based hilbert spectrum to nonstationary hydraulic turbine vibration signal analysis[J].Proceeding of the CSEE,2006,26(12):79-84.
