节点文献

引信试验数据的小波分析

Wavelet Analysis of Fuze Test Data

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 芮筱亭杨富锋沙南生陆文广田发林陈建新

【Author】 RUI Xiao-ting~1,YANG Fu-feng~1,SHA Nan-sheng~2,LU Wen-guang~1,TIAN Fa-lin~3,CHEN Jian-xin~3(1.Nanjing University of Science and Technology,Nanjing,Jiangsu 210094,China;2.Committee of Science,Technology and Industry National Defense,Beijing 100037,China;3.The Factory of 9324,Hefei,Anhui 230001,China)

【机构】 南京理工大学国防科学技术工业委员会国营9324厂国营9324厂 江苏南京210094江苏南京210094北京100037安徽合肥230001安徽合肥230001

【摘要】 用傅里叶变换对含有噪声干扰的试验数据进行滤波,通常难以确定奇异点在空间的位置及分布情况。本文用小波变换对引信风洞试验数据进行滤波,通过选择合理的基小波、分解尺度和阈值对数据滤波后得到了引信涡轮角加速度的突变点,确定了引信击针脱离盲孔的时间,找出了某型引信早炸原因,解决了实际引信故障分析难题,保证了该引信的设计定型。

【Abstract】 It is difficult to confirm the position and distribution of singularities in space generally when the test data with noise disturbance is filtered by Fourier transform.This paper describes that test data of wind-tunnel is filtered by wavelet transform.By choosing rational base wavelet,level and threshold,the saltation of angle acceleration of fuze turbine was obtained,the time when a stab firing device of fuze is divorced from a hole was assured,it is important to analyze the motion law of fuze.By finding out the reason of the fuze early burst,the design was guaranteed.

【关键词】 机械学引信试验早炸小波分析滤波
【Key words】 mechanicsfuze testearly burstwavelet analysisfilter
  • 【分类号】TJ430;
  • 【被引频次】8
  • 【下载频次】139
节点文献中: 

本文链接的文献网络图示:

本文的引文网络