ARA Module 10 – Analysis of Binary Response Data
of the Applied Reliability Analysis Course
Using Reliasoft Weibull++
This module covers modeling for summarized data resulting from pass/fail (binary) assessments. That is, the unit either fails or doesn’t fail when exposed to some stress for a specified period of time. In these problems similar methods are used, but often the probability of survival or failure is estimated as a function of stress level rather than time.
A little background, motivation, full course overview, and a welcome from the instructor, Steven Wachs
Training Objectives
The key training full course objectives are summarized below (highlighted objectives relate to this module)
- Understand reliability concepts and unique aspects of reliability data
- Understand underlying probability and statistical concepts for reliability analysis
- Develop competency in the modeling and analysis of time-to-failure data
- Use and interpret probability plots for distribution fitting
- Understand reliability metrics and how to estimate and report them
- Handle multiple failure modes in reliability estimation
- Utilize degradation Data and models to predict failure times for life data analysis
- Use nonparametric estimation methods when appropriate
- Determine if reliability specifications are met (at specified confidence level) or whether design improvements are required
- Estimate estimate uncertainty using confidence intervals and bounds
- Estimate reliability of subsystems and systems
- Handle basic series and parallel systems
- Become aware of system reliability activities such as Reliability Block diagramming, Reliability importance, and Reliability allocation
- Develop competency in the planning of reliability tests (sample sizes)
- Use simulation to support estimation test planning
- Develop reliability demonstration test plans (testing time vs. number of units tradeoffs)
- Analyze existing warranty data to predict future returns
- Analyze data from Accelerated Life Tests to estimate reliability at normal use conditions (single stress, multiple stress, time-varying stress models)
- Plan Accelerated Life tests (sample sizes, determination of test stress combinations, allocation of units to stress levels)
- Incorporate degradation data modeling into Accelerated Life Test analysis
- Perform stress-strength analysis using analytical methods, software, and simulation
- Model reliability from binary response data (i.e. pass/fail)
- Analyze repair data from repairable systems to predict the number of failures over time, conditional reliability, and failure rates
- Develop proficiency in the use of Reliasoft Weibull++ for Reliability analyses
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