Fault Tree Analysis (FTA)
RAM Commander’s Fault Tree Analysis (FTA) software module is the one of the unique features of the RAM Commander. It is simplified FTAnalyzer, fully integrated with RAM Commander product tree, reliability prediction and FMECA. It implements and summarizes the first-hand experience gained by the ALD FTA experts in hundreds of projects using RAM Commander and other ALD software tools.
• Handy methods for diagram printing and simple Copy & Paste transfer to other applications
• Easy to use Events Library
• Generation of Minimal Cut Sets
• Calculation of Unavailability Q(t), Mean Unavailability Q
• Calculation of Importance and Sensitivity
• Calculation of Frequency W(t) and Intensity L(t)
• Calculation of Unreliability F(t) and Number of Failures E(0,t)
• Generation and calculation of Binary Decision Diagram (BDD)
• TRUE/FALSE event status visual propagation
• MCS visual presentation on a fault tree
• Set of required reports – FTA diagram, MCS, events library etc.
• Link between FTA and the product tree
• Link between FTA and FMECA modules
• Integration with Safety analysis module
• Automatically build Fault trees from FMECA, FMEA and RBD
• Data import from RiskSpectrum, Aralia SimTree, CAFTA and Isograph FaultTree+Fault Tree Analysis is one of the most widely used methods in system reliability and failure probability analysis. A fault tree is a graphical representation of a logical structure representing undesired events (“failures”) and their causes. You create the logical structure by using gates and represent undesired events by using basic events. Reliability parameters are assigned to the basic events. Widely used in system reliability studies, fault tree analysis offers the ability to focus on an event of importance, such as a highly critical safety issue, and work to minimize its occurrence or consequence. The probability of the top-level event can then be determined by using mathematical techniques. The resulting fault tree diagram is a graphical representation of the chain of events in your system or process, built using events and logical gate configurations.
• Qualitative Analysis: performed by means of Minimal Cut Sets (MCS) building
• Quantitative Analysis: calculating the Absolute probabilities, i.e. the probabilities of system failures