WANG Chun-chang， GU Qiang， AN Xiao-hong
(College of Mechatronic Engineering, North University of China, Taiyuan 030051, China)
Abstract： In order to analyze the composition and frequency distribution of acceleration signal in the process of projectile penetrating, this paper uses wavelet transform to decompose penetration acceleration signal to get the distribution of penetration acceleration signal in different frequency bands. Compared with the ideal acceleration signal curve and its characteristics, it can be concluded that the frequency range of the acceleration signal in the axis of the projectile and the vibration frequency range of the projectile are 31.25-62.5 kHz and 62.5-125 kHz, respectively. Finally, the penetration acceleration signal curve is obtained by Simulink.
Key words： penetration process; wavelet transform; acceleration; frequency distribution
CLD number： TJ430.6Document code： A
Article ID： 1674-8042（2015）03-0223-06 doi： 10.3969/j.issn.1674-8042.2015.03.004
References
［1］ LI Rong, CHEN Kan, KANG Xing-guo, et al. Hard target smart fuze detonating control summary. Journal of Detection & Control, 2010, 32 (6): 1-4.
［2］ HUANG Jia-rong, LIU Rui-chao, HE Xiang, et al. A new data processing technique for measured penetration overloads. Explosion and Shock Waves, 2009, 29(5): 555-560.
［3］ FAN Jin-biao, ZU Jing, XU Peng, et al. Impact deceleration signal processing for concrete target penetration. Journal of Detection & Control, 2012, 34(4): 1-5.
［4］ ZHU Feng, ZHU Wei-hua, WANG Yi-shu, et al. Numerical simulation of penetration double steel on impact of the initial velocity of the projectile. Journal of Sichuan Ordnance, 2010, 32(91): 24-26.
［5］ YANG Chao, ZHAO Bao-rong, TIAN Shi-yu, et al. Research of effective factors of measuring deceleration during penetration. Ordnance Material Science and Engineeriing, 2002, 25(4): 3-6.
［6］ SU Wei, ZHANG Mei-jun. Application of VI technology in the wavelet signal extractor. Modern Manufacturing Engineering, 2006, (12): 86-88.
［7］ ZHU Xi-an, JIN Shen-zheng, NING Shu-nian, et al. The application status and outlook of wavelets analysis. Coal Geology & Exploration, 2003, 31(2): 51-55.
［8］ FENG Lin-na. Research of hard target penetration fuse simulation test system signal reconstruction. Nanjing: Nanjing University of Science and Technology, 2008.
基于小波变换的侵彻加速度信号分析
王春常， 顾强， 安晓红
（中北大学 机电工程学院， 山西 太原 030051）
摘要:为了分析弹体在侵彻过程中加速度信号的构成成分和频率分布范围， 利用小波变换对侵彻加速性信号进行了分解， 分解出侵彻加速度信号在不同频段内的分布情况。 通过与理想情况下加速度信号曲线及加速度信号本身的信号特点进行对比， 得出弹体在侵彻过程中， 在轴线上加速度信号的频率范围和弹体振动频率范围分别为31.25-62.5 kHz和62.5-125 kHz， 而后利用Simulink获得侵彻加速度信号曲线。
关键词:侵彻过程； 小波变换； 加速度； 频率范围
引用格式：WANG Chun-chang， GU Qiang， AN Xiao-hong. Analysis of penetration acceleration signal based on wavelet transformation. Journal of Measurement Science and Instrumentation, 2015, 6(3)： 223-228. ［doi： 10.3969／j.issn.1674-8042.2015.03.004］
[full text view]
