Information processing device, information processing method, and computer program product

An information processing method implemented by a computer, the method comprising:

• identifying, as resonant frequency of components of a structure, frequency of first-type peaks included in a first-type transfer function waveform representing relationship between amplitude and frequency of output vibration, the output vibration occurring in the components of the structure when the structure is subjected to sweep excitation;
• and
• calculating a vibration propagation path along which input vibration having the resonant frequency propagates when applied to the structure, the vibration propagation path being calculated based on frequency and half width of second-type peaks included in a second-type transfer function waveform representing relationship between amplitude and frequency of output vibration, the output vibration occurring in at least part of the components of the structure when the input vibration is applied to the structure for a predetermined vibration excitation duration.

A computer program product comprising a non-transitory computer-readable recording medium on which a program executable by a computer is recorded, the program instructing the computer to:

• identify, as resonant frequency of components of a structure, frequency of first-type peaks included in a first-type transfer function waveform representing relationship between amplitude and frequency of output vibration, the output vibration occurring in the components of the structure when the structure is subjected to sweep excitation;
• and
• calculate a vibration propagation path along which input vibration having the resonant frequency propagates when applied to the structure, the vibration propagation path being calculated based on frequency and half width of second-type peaks included in a second-type transfer function waveform representing relationship between amplitude and frequency of output vibration, the output vibration occurring in at least part of the components of the structure when the input vibration is applied to the structure for a predetermined vibration excitation duration.