Title :
Different approaches for probability of common cause failure on demand calculations for safety integrity systems
Author :
Börcsök, Josef ; Holub, Peter
Author_Institution :
Univ. of Kassel, Kassel
fDate :
March 31 2008-April 4 2008
Abstract :
The common cause failures (ccf) are the biggest part when calculating the probability of failure for redundant safety integrity systems. A ccf can occur, when a random hardware failure leads to a failure of several components. There are several methods to calculate the probability of ccf. Three models will be shown in this paper, with the help of which the beta-factor will be calculated. The ccf ratio for the calculation of the overall probability of failure is defined with the beta-factor.
Keywords :
computer architecture; failure analysis; probability; safety systems; beta-factor calculation; common cause failure; demand calculation; probability; random hardware failure; safety integrity system; Computer architecture; Control systems; Hardware; Pipelines; Probability; Product safety; Production systems; Pumps; Risk analysis; Safety devices;
Conference_Titel :
Computer Systems and Applications, 2008. AICCSA 2008. IEEE/ACS International Conference on
Conference_Location :
Doha
Print_ISBN :
978-1-4244-1967-8
Electronic_ISBN :
978-1-4244-1968-5
DOI :
10.1109/AICCSA.2008.4493677
