Study on Processing Methods of Shock Wave Pressure Signal Based on Damage Condition
Due to particularity of explosion field,under damage conditions,common shock wave pressure test system is influenced by parasitic effect,like thermal effect,impact vibration and so on.Parasitic effect applied to system produces spurious output which results in that it is difficult to obtain the eigenvalues of shock wave pressure signal.So,shock wave signal should be reasonably processed.According to characteristics of shock wave signal curve obtained in static experimental on a certain type of warhead,signal preprocessing should be carried out.According to effective bandwidth analysis,cutoff frequency is determined.And by comparison,digital filter is designed.To get the correct specific impulse of shock wave pressure signal,a new algorithm of stabilizing numerical integration is proposed and its effectiveness is verified.
Shock Wave Signal Processing Filter Specific Impulse
Fan YANG Fang WANG Lin KONG Yu HANG Weizheng CHEN
School of Mechanical Engineering,Nanjing University of Science and Technology,Jiang Su Nanjing 21009 Xian Modern Chemistry Research Institute,Shan Xi Xian 710065,P.R.China
国际会议
The 5th International Conference on Mechanical Engineering and Mechanics(第五届国际机械工程与力学会议)
江苏扬州
英文
479-485
2014-08-21（万方平台首次上网日期，不代表论文的发表时间）