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FTA - Fault Tree Analysis from BQR |
Fault Tree Analysis
| Fault Tree Analysis (FTA) is an analytical technique using a top-down approach to analyze various system combinations of hardware, software and human failures. The FTA starts with a potential undesirable event such as a crash of an aircraft and then identifies all related sub events that could cause that top event to occur.
The FTA provides easy to use symbolic representation of logical structure and relationship that exists between undesired basic potential events and may occur together in order for top event to occur. The main objective of the FTA is to determine the probability of top event occurrence.
Key Benefits of the FTA
- Identifies system safety issues and critical components
- Compiles with safety and reliability requirements
- Enables Calculation of top event occurrence probability
- Evaluates product risk
- Identifies causes and consequences of events (accidents/incidents)
- Identifies design changes and attention
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Fault tree analysis is useful both in designing new products/services or in dealing with identified problems in existing products/services.
Features:
- Handles Hardware/Software Fault & Event trees to calculate events probability and rate.
- K-out-of-N, OR, OR-Markov, AND, AND-stand-by, AND-network, priority AND, NOT and XOR Gates.
- Multiple events (Common Causes).
- Dormant events and inspections.
- Minimal Cut sets calculation with probabilities.
- Only up/down scroll - no need to scroll right & left or between pages for large trees.
- Quick and accurate calculation of probability and rates for all events.
- Conditional effects probability may be given under OR gates.
- Traditional Fault Tree report with multi page printing.
- The FTA tree can be built-up from the project tree assemblies or components and/or from the functional FMECA tree and/or from the RBD model tree.
- Simple on screen presentation of the tree using + and - to expand & collapse trees.
- Shares data with other CARE/CAME modules via the core database.
- Builds FTA models automatically from MTBF, FMECA, RBD & CAME.
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