Abstract
In this paper, a frequency correction method based on axisymmetric function is presented first and the analytical solutions of three forms of axisymmetric equations with three points are developed to correct the frequency. A complex exponent signal with exact solution is used to demonstrate the accuracy and theory of the proposed method by comparing it to the traditional methods with fast Fourier transform. (FFT) Moreover, the proposed method is applied in solving for a frequency identification of free attenuation vibration signal based on finite element model of actual building structure and the results show a good agreement with experimental and structural modal simulation results, which demonstrates the validity of the proposed method for solving frequency problems of building structure and others.
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