In this issue: Issue 118, December 2010
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Hot Topics
Phase Analysis with Complex Diagrams
Reliability Phase Diagrams or RPDs, can be thought of as an extension of the Reliability Block Diagram (RBD) approach. RPDs graphically describe the sequence of different operational and/or maintenance phases experienced by a system. This means that, unlike an RBD which is limited to systems with fixed configurations, RPDs can be used to represent complex systems that may change over time. The change may be in the reliability configurations (i.e. the RBD) and/or other properties, such as the availability of resources or throughput properties. In this article, we will use BlockSim to illustrate the use of reliability phase diagrams to study a complex system.

Reliability Basics
Using the Cumulative Binomial Equation for Reliability Demonstration Test Design and for Estimating the Parameters of a Data Set with Zero Failures
In this article, we will introduce the cumulative binomial equation and explore two potential applications for reliability engineering. First, we will explain how the equation can be applied for designing a Reliability Demonstration Test (RDT) that will be effective for demonstrating that a certain product has met or exceeded a given reliability at a given confidence interval. For this application, the equation can be adapted to apply to a situation in which no failures are expected to occur in the test. Next, we will discuss how that special case of the equation can also be applied for estimating the unknown parameter in a data set that does not contain any failures.

Tool Tips
• In Weibull++, how can I use the Specify Points tool to mitigate the effect of outliers in my data set?
• In Lambda Predict, can I include parts that are not in my selected reliability prediction standard?

Hot News

ARS Awards Issued - India and Singapore both hosted International Applied Reliability Symposiums (ARS) in the month of October. Both events achieved strong attendance, with participants who proved to be eager and engaged in the practical, results-oriented presentations. Today, we formally congratulate the recent recipients of the Excellent Presentation Awards, which were selected based on votes cast by Symposium attendees.

Bangalore, India

• A. Arokiadhasan (Gold) from Tractors and Farm Equipment Ltd. (TAFE), Chennai for his presentation on "Product (Tractor) Reliability Prediction & Improvement to Achieve B(X) Life."
• Sumeet Bhat (Silver) from Whirlpool of India Ltd. for his presentation on "Effective Use of Accelerated Tests."
• P. S. Sarma Budhavarapu (Bronze) from Crompton Greaves Ltd. for his presentation on "Reliability Improvement Through Field Performance Data Analysis and Reliability Testing - A Case Study."

Singapore

• Martin Shaw (Gold) from Reliability Solutions for his presentation on "LCD TV Reliability Testing: An Effective Approach."
• Sharon McKechnie (Silver) from Cochlear Limited for her presentation on "Measures of Reliability: Developing Reliability Requirements."
• Plam Sing Yew (Bronze) from ABB Malaysia Sdn Bhd for his presentation on "Electrical Reliability - A Benchmarking Case Study."