Performing Weibull Analysis
In addition to indicating whether newer or older parts are more likely to fail, the Weibull distribution can be applied to a number of different analyses, including reliability and maintenance analysis, probabilistic design, distribution analysis, cost reduction and design comparison. Weibull software, which is any program capable of using the Weibull distribution to calculate the reliability of a component or system in the future based on its past performance, analyses field or laboratory data. Using Weibull software to predict reliability basically consists of six steps:
1. Gather “good” life data.
2. Select the distribution type.
3. Specify the estimation method.
4. Indicate the confidence values.
5. Generate the analysis.
6. Interpret the results.