A combined wave superposition method is proposed to transform near-field acoustic holography.

An acoustic theoretical model for extracting mechanical fault features and the wave superposition method were proposed to reconstruct the acoustic fields generated by arbitrarily-shaped radiators in order to compute the number and location of noise sources.

By virtue of the comparability between the wave superposition method and the dynamic analysis of structures, a general format to overcome the non-uniqueness of solution induced by the wave superposition method at the eigenfrequencies of the corresponding interior problems is proposed in this paper.

Harmonic sources modeling and harmonic superposition simulation of power system with multi-harmonic sources;

The M-File S-function is then employed for both linear filtering and harmonic superposition of time-domain road roughness.

Combined with genetic algorithm, ant colony algorithm is used to optimize the analysis space of superposition for the multi harmonic sources, and evolution ability of genetic algorithm is used to optimize the analysis of harmonic superposition.

Nearfield acoustic holography based on wave superposition algorithm for cyclostationary sound filed;

A method for computing the acoustic fields of arbitrarily shaped radiators is described that uses the principle of wave superposition instead of Helmholtz integral.

This thesis has studied three aspects of these difficulties, as follows:(1) Uses a new method------Wave superposition to calculate structure soundpower radiation.