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New curve Fit procedure of Mechanical Vibration-ELEF
Author(s): 
Pages: 72-80
Year: Issue:  3
Journal: Transactions of Beijing Institute of Technology

Keyword:  机械振动系统模态参数识别计算机运算频率特性曲线傅立叶变换消除法计算机程序模态识别冲击响应单自由度系统;
Abstract: A new curve fit procedure to frequency response is proposed, based on Fourier tuansform of the impulse response.The procednre is called in the paper ELEF; evaluation of lobe effect from systems with other degrees of freedom. The plurality of systems with single degree of freedom existing close to each other can be separated. Curve fit procedure can be applied to systems with higher degrees of freedom, the procedure can be performed stably even to systems with 40-60 degrees of freedom and the computer time can be reduced ma terially through application of this method.
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