Identification of Parametric and Momentary Damages on the Basis of Lindeberg-Levy’s Model

Abstract:

Article presents the innovative method for the assessment of reliability condition of the exploited system, based on the appropriate analysis of changes in the current parameters of technical condition a_Rb and the regulation condition a_Rc, determined from the compressed condition equation (1 and 2). While analyzing the course of momentary parameters for technical condition a_Rb and the regulation condition a_Rc, it was observed that the parametric and momentary damages can be identified on the basis of quantitative relations between momentary threshold value d_pr and corresponding momentary permissible value d_{pr dop}, which are calculated from equation (7, 8, 9) resulting from Lindeberg-Levy’s theorem. It is assumed that the damages are prevailing, when for the moment θ_i: dpri>dpr dopi. With the number of damages (damage map), reliability parameters for each moment of exploitation of technical object (before the catastrophic damages will occur) can be determined. Parametric damages (expected lifetime E(T) and standard deviation of expected lifetime σ_E(T) provides the reasonable information for the appropriate planning of the servicing of exploitative objects.

• Periodical: Solid State Phenomena (Volume 260)
• Pages: 249-257
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.260.249
• Online since: July 2017
• Authors: Paweł Lindstedt, Tomasz Sudakowski*
• Keywords: Momentary Damages, Parametric Damages, Regulation Condition Parameter, Reliability Characteristics, Technical Condition Parameter

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