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Cron and Sherman[1] mentioned that noise in the ocean was a superposition of an isotropic noise field and an anisotropic noise field originating at the surface. In this paper a numerical simulation method for the isotropic noise field and the anisotropic noise field is proposed. And operation steps and operational rules of the method are described in detail. By reasonable choosing the way noise sources...
Efficient and reliable operation is the main requirement of the modern power plant, hence it's significant that the boiler tube leakage source is localized precisely. The four-element acoustic array was exploited in the furnace, a set of hyperboloidal equations are established and the sensors distributed for capture the leakage signal is given. In order to avoiding initial guess and distant source...
Efficient and reliable operation is the main requirement of the modern power plant,hence it's significant that the boiler tube leakage source is localized precisely. The four-element acoustic array was exploited in the furnace and the schematic of sensors distributed for capture the leakage signal were given. A set of hyperbolic equations were established and Accelerating genetic algorithm (AGA) was...
The method to determine the bearings of the three highlights sections of a ship based on a non-typical vector sound intensity array was proposed here. The array consists of 4 sensors that formed a spatial cross and the distances between the sensors can be changed. The bearing of the low frequency noise radiated by the midship and the middle part between the midship and stern is determined by sound...
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