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A New Approach for Dam Monitoring and Surveillance Using Blind Source Separation

Domenii publicaţii > Stiinte ingineresti + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Theodor D. Popescu

Editorial: ICIC International, International Journal of Innovative Computing, Information and Control (IJICIC), Vol.7, No.7, p.3811-3824, 2011.

Rezumat:

The main drawback of the statistical tools, applied in dam monitoring, is that the structural response quantities are related to the external loads using analytical functions, whose parameters do not have physical meaning. In this paper a new approach, based on Blind Source Separation (BSS) to find out the contributions of the external loads: air temperature and hydrostatic pressure to structure deformation and to identify the irreversible component in structural response, is presented. Finally, a case study whose purpose is to assess the separation of the contributions due to the external loads mentioned above is presented.

Cuvinte cheie: Blind source separation, statistical analysis, second-order statistics, SOBI algorithm, dams monitoring