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快速富里叶变换在计算柔性喷管频率特性中的应用
引用本文:何景轩.快速富里叶变换在计算柔性喷管频率特性中的应用[J].固体火箭技术,1994,17(4):26-29.
作者姓名:何景轩
作者单位:四院四十一所 西安
摘    要:介绍了利用快速富里叶变换(FFT)计算离散数学模型频率特性的方法。经实例证明,此法误差小,计算效率高,完全能够满足工程上的需要。

关 键 词:柔性喷管  频率  FFT  动态频率特性

Application of Fast Fourier Transformation in Calculation of the Frequence Characteristics of Flexible Joint Nozzle
He Jingxuan.Application of Fast Fourier Transformation in Calculation of the Frequence Characteristics of Flexible Joint Nozzle[J].Journal of Solid Rocket Technology,1994,17(4):26-29.
Authors:He Jingxuan
Abstract:A method of using fast Fourier transformation (FFT) to calculate the frequency characteristics of discrete mathematical model is introduced. The calculation ruselts of a example demonstrate that this method has the advantages of small error and high calculation efficiency and can meet the engineering requirements very well.
Keywords:Fast fourier transformation Flexible nozzle Frequency
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