# APME_4 - Applied Probability Methods for Engineers Slide...

This preview shows pages 1–9. Sign up to view the full content.

Click to edit Master subtitle style Applied Probability Methods for Engineers Slide Set 4

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Click to edit Master subtitle style Chapter 17 Reliability Analysis and Life Testing
System Reliability n Component reliability r n Thought of as probability component performs n 1 – r is probability component fails n System analyzed as a set of components n System reliability diagram shows relationship among components n Series versus parallel distinction is important

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
System Reliability Diagram n We wish to understand system reliability in terms of the components n Sample system reliability diagram:
Components in Series n Components are in series if each must work in order for the system to work n If n items are in series, and ri is the reliability of components i (and components are independent), then the system reliability is product of component reliabilities

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Series Example n Four independent components in series, each with reliability 0.995
Components in Parallel n Components are in parallel if the system is functional whenever at least one is functional n P(system is functional) = 1 – P(system fails) n P(system fails) is product of individual component failure probabilities (1 – r1)(1 – r2) …(1 – rn) n P(system is functional) = 1 – [(1 – r1)(1 – r2)… (1 – rn)]

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Components in Parallel
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 10/27/2010 for the course ESI 6321 taught by Professor Josephgeunes during the Spring '07 term at University of Florida.

### Page1 / 19

APME_4 - Applied Probability Methods for Engineers Slide...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online