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Abstract

The paper presents the architecture and preliminary design of an expert system which may allow to forecast the residual life span of structural components and plan optimum corrective actions. The class of structural components which it is addressed to comprises pressurized vessels and equipment (like tanks, steam generators, piping, heat exchangers) that undergo loading conditions variable in time and space. It is assumed that these components find use in chemical or nuclear plants and are periodically inspected by means of some non-destructive testing technique (like ultrasonic and radiographic examination). Non-destructive testing has the scope of identifying the existence of cracks and other defects which may grow and originate ruptures with eventual loss of production, and possible damage to plant operators and surrounding environment. In practice, the expert system as proposed would help to overcome recurrent difficulties connected with limits to resources (and time) which are required for residual lifetime prediction and its management. Particularly, the expert system would offer a coherent and a comprehensive frame to deal with the several sources of error which are encountered.

Additional information

Authors: GARRIBBA S POLITECNICO DI MILANO (ITALY) LUCIA A C JRC - ISPRA ESTAB. (ITALY) , POLITECNICO DI MILANO (ITALY);JRC - ISPRA ESTAB. (ITALY)
Bibliographic Reference: 5TH INTERNATIONAL CONFERENCE ON APPLICATIONS OF STATISTICS AND PROBABILITY, VANCOUVER (CANADA), MAY 25-29, 1987 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 33203 ORA
Availability: Can be ordered online
Record Number: 1989125077100 / Last updated on: 1987-12-01
Category: PUBLICATION
Available languages: en