摘要
本文利用快速傅里叶变换和最大熵谱法计算频率 /波数谱 ,对鱼雷壳体的受激响应特性进行了频率 /波数谱分析 ,得到了振动波在鱼雷壳体中传播的波数、波速、波型和波的传播方向 。
Frequency/wave number spectra are given using the fast Fourier transform and maximum entropy spectral analysis. Excitation responses of the middle and tail parts of the torpedo shell are analyzed by the frequency/wave number spectrum method. Wave numbers, wave velocity, types and directions of wave propagation in the shell are obtained and discussed.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2000年第2期187-189,共3页
Acta Armamentarii
关键词
振动
波传播
频率/波数谱
vibration, wave propagation, frequency/wave number spectrum