Performance analysis of redundant safety-instrumented systems subject to degradation and external demands

• Published in: Journal of loss prevention in the process industries Vol. 62; p. 103946
• Main Authors: Zhang, Aibo, Barros, Anne, Liu, Yiliu
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.11.2019
• Subjects: Degradation; Probability failure on demand; Redundant structure; Safety-instrumented system; Degradation; Probability failure on demand; Safety-instrumented system; Redundant structure

Safety-instrumented systems (SISs) play a vital role in preventing hazardous events in the offshore facilities. Many of existing performance analysis of SISs are based on the constant failure rate assumption, which is however doubtful when it is applied to actuator sub-systems or mechanical final el...