Avoid Reliability Shortfalls with Fault Tree Analysis (FTA)

Fault Tree Analysis (FTA) is a top-down approach for analyzing pre-event failures with systems in development, beginning with the top event (the potential failure), then determining all the ways it can occur. Similarly, post-event failures can be analyzed to find the root cause of the failure.

 

Dyadem's Solution for FTA

Dyadem software, Stature, facilitates compliance with safety and regulatory requirements, allowing companies to reduce design defects, product recalls and production downtime. The result is an increased ability to produce safe, reliable, high quality products.

Stature turns your FTAs from standalone diagrams into integrated data that is aggregated with other risk assessments such as FMEA and PHA.  Stature can also be configured to meet your unique needs.

Features:

Stature helps you comply with a variety of regulations, including: IEC 61025; NASA Fault Tree Handbook with Aerospace Applications; NUREG 0492

Enables you to complete fault-tree analyses in three independent calculation engines – verifying your results on a fault-tree at least three times

Provides Static Gates, Dynamic Gates, Events (basic, undeveloped, dormant, spare), Reports (including cut set and importance measures)

Qualitative System Analysis - carried out through the use of minimal cut sets

Unreliability System Analysis Methods - Cross Product, Cut Set Summation, Esary-Proschan, Exact Probability Calculation, Monte Carlo Simulation

Importance Measures – Birnbaum, Criticality Importance, Fussel-Vesely, Risk Achievement Worth, Risk Reduction Worth

Event Failure Modeling – Allows you to choose from several different models, including Constant Probability, Constant Failure Rate with Repair, Weibull Distribution, Dormant and Spare Event

Common Cause Failure Models - Supports the four different CCF models, Beta Factor Model, Alpha Model, Multiple Greek Letter (MGL) Model, Beta Binomial Failure Rate (BFR) Model

Calculation Options – Minimal Cut Sets, Unreliability, Unavailability, Failure Frequency, Number of Failures, Downtime, Mean Time to Failure and Mean Time Between Failure

 Displaying Calculation Results – Displays a variety of calculation results, including Importance Measure Table and Minimal Cut Sets Tables