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Vibration testing method
申请号	JP411485	申请日	1985-01-16	公开(公告)号	JPS61164135A	公开(公告)日	1986-07-24
申请人	Fuji Facom Corp; Honda Motor Co Ltd;			发明人	YOKOTA AKIHIKO;
摘要	PURPOSE:To eliminate adverse influence on a vehicle, by finding an inverse transfer function from a transfer function, subjecting the inverse transfer function to Fourier- transformation, subjecting the multiplied value of the Fourier-transformed value and the inverse transfer function to inverse Fourier-transformation, and finding an initial excitation signal by multiplying the transformed value by an initial excitation factor. CONSTITUTION:The output signal of a detector 5 is measured and the transfer function of a system provided with a vehicle A, to which vibration is added from an exciter 1, and the detector 5 fitted to an optional position of the vehicle A is found by adding a vibration signal of a prescribed waveform to the exciter 1 of the system. Then an inverse transfer function is found from the transfer function and, at the same time, the inverse transfer function is Fourier-transformed. The Fourier-transformed value is multiplied by the inverse transfer function and the multiplied value is subjected to inverse Fourier-transformation and, furthermore, the inverse Fourier-transformed value is multiplied by an initial excitation factor. Thus an initial excitation signal is found. Since the initial excitation signal is found in such a way, the initial excitation signal is set to a low value and can be made closer to an actual value gradually by error correction. Therefore, the exciter 1 can be actuated without giving adverse influence to the vehicle A.
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Vibration testing method

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