舰艇冲击响应数据滤波频率选取方法分析
|
摘要
由于冲击响应数据具有较强烈的非线性与瞬态性,研究难度较大,目前在舰艇抗冲击技术研究领域还没有相应的标准规范或统一的滤波频率选取方法。利用冲击响应的冲量信息变化情况作为滤波频率选取依据,给出了具体的分析方法及判据。并应用该方法分别分析了舰艇船体结构与设备的冲击响应数据滤波频率,结论如下:不同爆距,船体结构同一部位,冲击响应数据的滤波频率取值相同;不同爆距,舰艇同一设备相同部位,冲击响应数据的滤波频率取值不同。
The filtering frequency of shock response is difficult to study due to its obvious features of transient and non-linearity in course of shock response of a warship.So far,there is no standard or uniform method of choosing filtering frequency for anti-shock study.The specific analysis method and criterion were provided here by taking impulse information variation of shock response as the basis of choosing filtering frequency.The shock response filtering frequencies of a shipbuilding structure and an equipment were analyzed with the proposed method.The results showed that the shock response filtering frequencies are same for the same part of the shipbuilding structure with different balst distances,but they are different for the same part of the ship equipment with different explosion distances.
The filtering frequency of shock response is difficult to study due to its obvious features of transient and non-linearity in course of shock response of a warship.So far,there is no standard or uniform method of choosing filtering frequency for anti-shock study.The specific analysis method and criterion were provided here by taking impulse information variation of shock response as the basis of choosing filtering frequency.The shock response filtering frequencies of a shipbuilding structure and an equipment were analyzed with the proposed method.The results showed that the shock response filtering frequencies are same for the same part of the shipbuilding structure with different balst distances,but they are different for the same part of the ship equipment with different explosion distances.
引文
[1]汪玉,华宏星.舰船现代冲击理论及应用[M].北京:科学出版社,2005.
[2]尹爱军,吴宏钢,秦树人.PDE滤波原理与方法[J].振动与冲击,2010,29(10):232-235.YIN Ai-jun,WU Hong-gang,QIN Shu-ren.Principle andmethod of filtering based on partial differential equation[J].Journal of Vibration and shock,2010,29(10):232-235.
[3]于大鹏.基于实船冲击响应数据的舰艇动力学模态参数识别研究[R].北京:海军装备研究院博士后研究工作报告,2012.
[4]杜志鹏,汪玉,杨洋.舰艇水下爆炸冲击信号拟合及应用[J].振动与冲击,2010,29(3):182-184.DU Zhi-peng,WANG Yu,YANG Yang.Curve fit method fornaval underwater explosion shock signal and its application[J].Journal of Vibration and Shock,2010,29(3):182-184.
[5]钱昌松,刘志刚.基于新的模态单元滤波消除地震信号中的汽车噪声[J].振动与冲击,2010,29(5):207-210.QIAN Chang-song,LIU Zhi-gang.Eliminating automobile noisefrom a seismic wave signal based on a mode cell filter[J].Journal of vibration and shock,2010,29(5):207-210.
[6]Qian S E,Chen D P.Joint time-frequency analysis[M].Methods and Applications Prentice Hall PTR,1996.
[7]Gabor D.Theory of communication[J].J.Inst.Elec.Eng.,1946,93:429-457.
[8]Wigner E P.On the quantum correction for thermodynamicequilibrium[J].Physical Review,1932,40:749-759.
[9]Ville J.Applications de la notion de signal analvtigue[J].Cables et Transmissions,1948,2A:61-74.
[10]黄世霖.工程信号处理[M].北京:人民交通出版社,1988.
[11]李永军,马立元,王天辉.一种新的窄带信号去噪方法仿真分析[J].振动与冲击,2012,31(1):140-143.LI Yong-jun,MA Li-yuan,WANG Tian-hui.Simulationanalysis of a new denoising algorithm for narrow-band signal[J].Journal of Vibration and Shock,2012,31(1):140-143.
[12]丁康,陈乐德,杨志坚.基于复解析带通滤波的自由衰减振动信号的频谱校正法[J].振动与冲击,2010,29(1):17-21.DING Kang,CHEN Le-de,YANG Zhi-jian.A method ofspectrum correction for a damped free vibration signal basedon complex analytic band-pass filtering[J].Journal ofVibration and Shock,2010,29(1):17-21.
[13]王宏寓.非平稳随机信号分析与处理[M].北京:国防工业出版社,1998.
[14]张贤达.现代信号处理[M].北京:清华大学出版社,2002.
[15]D’Auria L,Giudicepietro F,Martini M.The 5 April 2003vulcanian explosion at stromboli volcano(Southern Italy)analysis of seismic data[J].From Internet,2006.
[16]Schimmel M,Gallart J.Degree of polarization filter forfrequency-dependent signal enhancement through noisesuppression[J].Bulletin of the Seismological Society ofAmerica,2004,94(3):1016-1035.
[17]Jeon Y S.High frequency earthquake ground motion scalingin Utan[D].The paper for the degree of master of science,The graduate school of Saint Louis University,2001.
[2]尹爱军,吴宏钢,秦树人.PDE滤波原理与方法[J].振动与冲击,2010,29(10):232-235.YIN Ai-jun,WU Hong-gang,QIN Shu-ren.Principle andmethod of filtering based on partial differential equation[J].Journal of Vibration and shock,2010,29(10):232-235.
[3]于大鹏.基于实船冲击响应数据的舰艇动力学模态参数识别研究[R].北京:海军装备研究院博士后研究工作报告,2012.
[4]杜志鹏,汪玉,杨洋.舰艇水下爆炸冲击信号拟合及应用[J].振动与冲击,2010,29(3):182-184.DU Zhi-peng,WANG Yu,YANG Yang.Curve fit method fornaval underwater explosion shock signal and its application[J].Journal of Vibration and Shock,2010,29(3):182-184.
[5]钱昌松,刘志刚.基于新的模态单元滤波消除地震信号中的汽车噪声[J].振动与冲击,2010,29(5):207-210.QIAN Chang-song,LIU Zhi-gang.Eliminating automobile noisefrom a seismic wave signal based on a mode cell filter[J].Journal of vibration and shock,2010,29(5):207-210.
[6]Qian S E,Chen D P.Joint time-frequency analysis[M].Methods and Applications Prentice Hall PTR,1996.
[7]Gabor D.Theory of communication[J].J.Inst.Elec.Eng.,1946,93:429-457.
[8]Wigner E P.On the quantum correction for thermodynamicequilibrium[J].Physical Review,1932,40:749-759.
[9]Ville J.Applications de la notion de signal analvtigue[J].Cables et Transmissions,1948,2A:61-74.
[10]黄世霖.工程信号处理[M].北京:人民交通出版社,1988.
[11]李永军,马立元,王天辉.一种新的窄带信号去噪方法仿真分析[J].振动与冲击,2012,31(1):140-143.LI Yong-jun,MA Li-yuan,WANG Tian-hui.Simulationanalysis of a new denoising algorithm for narrow-band signal[J].Journal of Vibration and Shock,2012,31(1):140-143.
[12]丁康,陈乐德,杨志坚.基于复解析带通滤波的自由衰减振动信号的频谱校正法[J].振动与冲击,2010,29(1):17-21.DING Kang,CHEN Le-de,YANG Zhi-jian.A method ofspectrum correction for a damped free vibration signal basedon complex analytic band-pass filtering[J].Journal ofVibration and Shock,2010,29(1):17-21.
[13]王宏寓.非平稳随机信号分析与处理[M].北京:国防工业出版社,1998.
[14]张贤达.现代信号处理[M].北京:清华大学出版社,2002.
[15]D’Auria L,Giudicepietro F,Martini M.The 5 April 2003vulcanian explosion at stromboli volcano(Southern Italy)analysis of seismic data[J].From Internet,2006.
[16]Schimmel M,Gallart J.Degree of polarization filter forfrequency-dependent signal enhancement through noisesuppression[J].Bulletin of the Seismological Society ofAmerica,2004,94(3):1016-1035.
[17]Jeon Y S.High frequency earthquake ground motion scalingin Utan[D].The paper for the degree of master of science,The graduate school of Saint Louis University,2001.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心