Skip to Main Content
Improving Reliability and Quality for Product Success
book

Improving Reliability and Quality for Product Success

by Dongsu Ryu
May 2012
Intermediate to advanced content levelIntermediate to advanced
226 pages
7h 18m
English
CRC Press
Content preview from Improving Reliability and Quality for Product Success
105Chapter ve: The fundamental solution for reliability assurance:
Let’s consider the meaning of the two equations for sample size,
Equations 5.9 and 5.11. Multiplying the numerator and denominator of
Equation (5.11) by the lifetime or target period (L
*
) yields
n r
L
L
AF h
r
x
L
AF h
a a
+
( )
= +
( )
1
1
1
1
λ
* *
* *
1
(5.12)
Here, λ
*
· L
*
becomes the cumulative failure rate (x), as it is the result of mul-
tiplying the failure rate per period by the specied period (for example,
lifetime).
Comparing the sample size equations for failure rate (Equation (5.12))
and for lifetime (Equation (5.9)) implies that they have a similar form. The
di
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Robustness Development and Reliability Growth: Value-Adding Strategies for New Products and Processes

Robustness Development and Reliability Growth: Value-Adding Strategies for New Products and Processes

John P. King, William S. Jewett
The Road to Quality Control

The Road to Quality Control

Nicholas Fisher, Yutaka Tanaka, William Woodall
Business Productivity Strategies for Success (Collection)

Business Productivity Strategies for Success (Collection)

Mark I. Woods, Trapper Woods, Merrick Rosenberg, Daniel Silvert, Jerry Weissman, Martha I. Finney

Publisher Resources

ISBN: 9781466503793