Wavelet analysis on shock response of a real ship subjected to non-contact underwater explosion

Xie Yaoguo; Yao Xiongliang; Cui Hongbin; Li Xinfei

doi:10.11883/1001-1455(2017)01-0099-08

Volume 37 Issue 1

Jan. 2017

Turn off MathJax

Article Contents

Article Navigation > Explosion And Shock Waves > 2017 > 37(1): 99-106

Xie Yaoguo, Yao Xiongliang, Cui Hongbin, Li Xinfei. Wavelet analysis on shock response of a real ship subjected to non-contact underwater explosion[J]. Explosion And Shock Waves, 2017, 37(1): 99-106. doi: 10.11883/1001-1455(2017)01-0099-08

Citation:

Xie Yaoguo, Yao Xiongliang, Cui Hongbin, Li Xinfei. Wavelet analysis on shock response of a real ship subjected to non-contact underwater explosion[J]. Explosion And Shock Waves, 2017, 37(1): 99-106. doi: 10.11883/1001-1455(2017)01-0099-08

Citation:

PDF( 2592 KB)

Wavelet analysis on shock response of a real ship subjected to non-contact underwater explosion

doi: 10.11883/1001-1455(2017)01-0099-08

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

Received Date: 2015-07-01
Rev Recd Date: 2015-12-18
Publish Date: 2017-01-25

Abstract

Abstract

With a view to obtaining the characterisstic of shock response of the hull to underwater explosion, based on the experimental impact vibration data subjected to underwater explosion trial of ship, the time-frequency characteristics of the monitored impact vibration signals were studied by wavelet analysis. By using these signals, the acceleration-time curves and the energy distributions in different blasting frequency bands were obtained. The result show that the time-frequency characteristics of impact vibration can be obtained by the wavelet analysis, it is easy to get the time-frequency information details of the impact vibration signal intensity, frequency and duration, including the peak values and attenuation and vibration energy of impact vibration signals. Based on the analysis of the energy statistics and impact strength of the wavelet frequency band, found that has a wide distribution of shock response spectrum energy, more than 80% of vibration energy distributed above 312.5Hz at the main deck and below deck, and more vibration energy in low frequency at superstructure deck platform.
- mechanics of explosion,
- time-frequency characteristic,
- wavelet analysis,
- real ship,
- underwater explosion,
- shock response

FullText(HTML)

References(14)

References

[1]	Stettler J W. Damping mechanisms and their effects on the whipping response of a submerged submarine subjected to an underwater explosion: A347892[R]. Massachusetts: Massachusetts Institute of Technology, 1995: 48-94
[2]	Boyd S D. Acceleration of a plate subject to explosive blast loading: Trial results: A324873[R]. Australia: Defence Science and Technology Organisation, 2000: 2-8.
[3]	Hart D T. Ship shock trial simulation of USS winston S. churchill (DDG81): Surrounding fluid effect: A919414[R]. Massachusetts: Massachusetts Institute of Technology, 2003: 15-30.
[4]	张玮, 崔立, 杜志鹏.舰艇抗冲击试验仿真技术[J].科技导报, 2009, 27(14):38-41. doi: 10.3321/j.issn:1000-7857.2009.14.008 Zhang Wei, Cui Li, Du Zhipeng. Ship shock trials simulation techniques[J]. Science & Technology, 2009, 27(14):38-41. doi: 10.3321/j.issn:1000-7857.2009.14.008
[5]	李夕兵, 张义平, 刘志祥.爆破震动信号的小波分析与HHT变换[J].爆炸与冲击, 2005, 25(6):528-535. doi: 10.3321/j.issn:1001-1455.2005.06.008 Li Xibing, Zhang Yiping, Liu Zhixiang. Wavelet analysts and Hilbert-Huang transform of blasting vibration signal[J]. Explosion and Shock Waves, 2005, 25(6):528-535. doi: 10.3321/j.issn:1001-1455.2005.06.008
[6]	凌同华, 廖艳程, 张胜.冲击荷载下岩石声发射信号能量特征的小波包分析[J].振动与冲击, 2010, 29(10):127-132. doi: 10.3969/j.issn.1000-3835.2010.10.026 Ling Tonghua, Liao Yancheng, Zhang Sheng. Application of wavelet packet method in frequency band energy distribution of rock acoustic emission signals under impact loading[J]. Journal of Vibration and Shock, 2010, 29(10):127-132. doi: 10.3969/j.issn.1000-3835.2010.10.026
[7]	林大超, 施惠基, 白春华.爆炸地震效应的时频分析[J].爆炸与冲击, 2003, 23(1):31-35. doi: 10.3321/j.issn:1001-1455.2003.01.006 Lin Dachao, Shi Huiji, Bai Chunhua. Time-frequency analysis of explosion seismic effects[J]. Explosion and Shock Waves, 2003, 23(1):31-35. doi: 10.3321/j.issn:1001-1455.2003.01.006
[8]	温华兵, 张健, 尹群.水下爆炸船舱冲击响应时频特征的小波包分析[J].工程力学, 2008, 25(6):199-203. http://d.old.wanfangdata.com.cn/Periodical/gclx200806033 Wen Huabing, Zhang Jian, Yin Qun. Wavelet packet analysis of time-frequency characteristic of cabin shock response due to underwater explosion[J]. Engineering Mechanics, 2008, 25(6):19-203. http://d.old.wanfangdata.com.cn/Periodical/gclx200806033
[9]	李万, 张志华, 李庆民, 等.水下爆炸下水下目标振动信号的时频分析[J].船舶力学, 2013, 17(7):800-806. doi: 10.3969/j.issn.1007-7294.2013.07.011 Li Wan, Zhang Zhihua, Li Qingmin, et al. Research on features of time-frequency of underwater target by underwater explosion[J]. Journal of Ship Mechanics, 2013, 17(7):800-806. doi: 10.3969/j.issn.1007-7294.2013.07.011
[10]	李万, 张志华, 周峰, 等.水下目标在水下爆炸作用下冲击响应的时频特征[J].爆炸与冲击, 2012, 32(5):309-315. http://www.bzycj.cn/CN/abstract/abstract8581.shtml Li Wan, Zhang Zhihua, Zhou Feng, et al. Time-frequency characteristics of shock responses of underwater target to underwater explosion[J]. Explosion and Shock Waves, 2012, 32(5):309-315. http://www.bzycj.cn/CN/abstract/abstract8581.shtml
[11]	计晨, 王志刚, 汪玉, 等.柴油机抗冲击性能实船水下爆炸冲击试验研究[J].舰船科学技术, 2010, 32(5):27-30. http://d.old.wanfangdata.com.cn/Periodical/jckxjs201005007 Ji Chen, Wang Zhigang, Wang Yu, et al. Anti-shock capability of marine diesel in ship shock trial[J]. Ship Science and Technology, 2010, 32(5):27-30. http://d.old.wanfangdata.com.cn/Periodical/jckxjs201005007
[12]	张德丰.Matlab-小波分析[M].2版.北京:机械工业出版社, 2012:49-76.
[13]	Daubechies I. The wavelet transform, time-frequency localization and signal analysis[J]. IEEE Transactions on Information Theory, 1990, 36(5):961-1005. doi: 10.1109/18.57199
[14]	Daubechies I. Orthonormal bases of compactly supported wavelets[J]. Communications on Pure and Applied Mathematics, 1988, 41(7):909-996. doi: 10.1002/(ISSN)1097-0312