This folio may be useful when dealing with unknown failure modes, when there is not enough data to assume a life distribution or when the data set does not fit any life distribution in a satisfactory way. Weibull++'s non-parametric LDA folio offers a choice of three methods for analyzing life data without assuming an underlying life distribution: Kaplan-Meier, Simple Actuarial and Standard Actuarial.
Now in Version 8, Weibull++ also automatically calculates the life data model based on the extrapolated failure times and allows you to obtain calculated results and plots directly within the same folio - no need to transfer or link to another analysis folio! Non-Parametric Life Data Analysis Time plots on either a linear or logarithmic scale.
RELIASOFT WEIBULL CRACK SOFTWARE
The software offers a choice of the Linear, Exponential, Power, Logarithmic, Gompertz or Lloyd-Lipow models to analyze the degradation data, and generates Degradation vs.
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The Weibull++ degradation analysis folio allows you to extrapolate the expected failure times of a product based on measurements that reflect how some performance measure (e.g., increase in crack propagation, decrease in tread depth, increase in vibration, etc.) has degraded for sample units over a period of time. Reliable life (i.e., time for a given reliability, also called "warranty time")īX% life (i.e., time for a given unreliability)įailure/suspension histograms, pie charts or timelines The software provides a complete array of Calculated Results and Plots based on the analysis. Depending on the specific analysis method used, the confidence bounds may be calculated using the Fisher Matrix, Likelihood Ratio, Beta Binomial or Bayesian approach. Weibull++ also provides Confidence Bounds for parameters, calculated results and plots. Parameter Estimation options for standard life data analysis include Maximum Likelihood Estimation (MLE), Rank Regression on X (RRX) or Rank Regression on Y (RRY). If you are not sure which model is appropriate for a given data set, the convenient Distribution Wizard automatically performs several types of goodness-of-fit tests in order to rank the available distributions.
RELIASOFT WEIBULL CRACK SERIES
Available lifetime distributions and analysis methods include:īayesian-Weibull (which considers prior knowledge of the Weibull shape parameter)Ģ, 3 and 4 subpopulation Mixed Weibull (for situations when there are different trends in the data but you cannot identify a distinct failure mode for each data point)Ĭompeting Failure Modes (CFM) analysis (which analyzes failure modes separately and then assumes a series reliability model in which each failure mode "competes" to cause the failure) You can analyze time-to-failure (complete), right censored (suspension), left censored, interval censored or free-form data, entered individually or in groups. The Weibull++ standard folio supports all life data types and all major lifetime distributions. The software is also packed with tools for related analyses, such as warranty data analysis, degradation data analysis, non-parametric data analysis, recurrent event data analysis (for repairable systems) and reliability test planning. ReliaSoft's Weibull++ provides the most comprehensive toolset available for reliability life data analysis, calculated results, plots and reporting. You can also review an introduction to the Synthesis Platform and a list of what's new in Weibull++ Version 8. This topic provides a brief overview of the major analysis, data management and reporting capabilities provided by Weibull++.