izpis_h1_title_alt

Intelligent location of simultaneously active acoustic emission sources - Part I
Kosel, Tadej (Avtor), Grabec, Igor (Avtor)

URLURL - Predstavitvena datoteka, za dostop obiščite http://arxiv.org/abs/0704.0047 Povezava se odpre v novem oknu

Izvleček
The intelligent acoustic emission locator is described in Part I, while Part II discusses blind source separation, time delay estimation and location of two simultaneously active continuous acoustic emission sources. The location of acoustic emission on complicated aircraft frame structures is a difficult problem of non-destructive testing. This article describes an intelligent acoustic emission source locator. The intelligent locator comprises a sensor antenna and a general regression neural network, which solves the location problem based on learning from examples. Locator performance was tested on different test specimens. Tests have shown that the accuracy of location depends on sound velocity and attenuation in the specimen, the dimensions of the tested area, and the properties of stored data. The location accuracy achieved by the intelligent locator is comparable to that obtained by the conventional triangulation method, while the applicability of the intelligent locator is more general since analysis of sonic ray paths is avoided. This is a promising method for non-destructive testing of aircraft frame structures by the acoustic emission method.

Jezik:Angleški jezik
Ključne besede:akustična emisija, viri emisije, letalske konstrukcije, strukture, metode umetne inteligence, neporušno preskušanje, acoustic emission sources, emission locator, aircraft frame structures, non-destructive testing
Vrsta gradiva:Delo ni kategorizirano (r6)
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2007
Št. strani:5 f.
UDK:531/533
COBISS.SI-ID:10031899 Povezava se odpre v novem oknu
Število ogledov:491
Število prenosov:201
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