Length: 2 Days
Fault Tree Analysis Training
Fault tree analysis (FTA) is a systematic approach to problem-solving, troubleshooting and identifying a failure’s root cause using a diagram.
A fault tree analysis can either be used to explore a single failure or systematically examine a group of components, which makes it a versatile tool for a root cause analysis.
The fault tree analysis (FTA) was first introduced by Bell Laboratories and is one of the most widely used methods in system reliability, maintainability and safety analysis. It is a deductive procedure used to determine the various combinations of hardware and software failures and human errors that could cause undesired events (referred to as top events) at the system level.
The benefits for organizations that choose to use fault tree analysis are many, and include:
- Process may lead to a single component or material that causes many paths to failure, thus improving that one element may minimize the possibly of many failures.
- Using the logic of a detailed failure analysis and tools like 5 whys, FTA helps the team focus on the causes of each event in a logical sequence that leads to the failure.
- FMEA, RBD and other tools permit a way to explore system reliability, FTA provide a tool that focuses on failure modes one at a time. Sometimes a shift in the frame of reference illuminates new and important elements of the system.
- FTA allows the examination of the many ways a fault may occur and may expose non-obvious paths to failure that other analysis approaches miss.
- FTA includes hardware, software, and human factors in the analysis as needed. The FTA approach includes the full range of causes for a failure.
The fault tree explicitly shows all the different relationships that are necessary to result in the fault or failure. In constructing the fault tree, a thorough understanding is obtained of the logic and basic causes leading to the top event.
Using the logic of a detailed failure analysis and tools, FTA helps the team focus on the causes of each event in a logical sequence that leads to the failure. Furthermore, the countermeasures can be found out.
Many team leaders have also found fault tree analysis useful at providing an effective way to analyze the system. Other tools permit a way to explore system reliability, and FTA provides a tool that focuses on failure modes one at a time.
The fault tree is a tangible record of the systematic analysis of the logic and basic causes leading to the top event. Sometimes a shift in the frame of reference illuminates new and important elements of the system.
A popular added benefit of fault tree analysis is it creates a visual aid for system analysis and management. This works out well for organizations because it’s no secret that most managers prefer graphics to text.
The fault tree analysis diagram provides a framework for thorough qualitative and quantitative evaluation of the top event. And for complex systems, it helps to focus the team on vital elements. It is also a good way to identify weaknesses in a system.
Fault Tree Analysis Training Course by Tonex
Fault Tree Analysis is s a systematic method of system analysis and part of operations research in system reliability and safety. Fault Tree Analysis (FTA) examines a system from top-down and provides graphical symbols for ease of understanding. It incorporates mathematical tools to focus on critical areas.
Fault tree analysis can also be also as an analytical technique for tracing the events which could contribute. It can be used in accident investigation and in a detailed hazard assessment. The fault tree is a logic diagram based on the principle of multi-causality, which traces all branches of events which could contribute to an accident or failure.
Participants in this course learn the concepts of Fault tree analysis as it is used a symbolic “analytical logic techniques” and its application in reliability and safety analysis. Learn how basic events, often made up of failures at the component level, could lead to a hypothesized failure of a system.
Learn how fault tree analysis (FTA) is used in system engineering and analysis practices such as reliability, maintainability and safety. Using a failures analysis, you can attempt to determine the specific causes by constructing a logic diagram, a top-down approach:
- Identify potential causes of system failures before the failures actually occur (proactive)
- Evaluate the probability of the top event using analytical or statistical methods
- Efforts on improving system safety and reliability
Fault Tree Analysis (FTA) training program:
Basic Concepts of System Analysis
- System Analytical Approaches
- Overview of Inductive Methods
- Failure Mode and Effect Analysis (FMEA)
- Failure Mode Effect and Criticality Analysis (FMECA)
- Fault Tree Analysis (FTA)
- Purpose of FTA
- Rules of FTA
- Part Failure
- Product Failure
Analyze a Simple System using FTA
- Boolean Algebra Applied
- Relationship between FMEA & FTA
- Basic Concepts
- Failure vs. success models
- Basic elements of a Fault Tree
- Building Blocks of a Fault Tree
- Fault Tree Diagram (FTD)
Fault Tree Construction
- Fault vs. Failures
- Fault Occurrence vs. Fault Existence
- Passive vs. Active Components
- Component Fault Categories
- Failure Mechanism, Failure Mode, and Failure Effect
Basic Rules for Fault Tree Construction
- Tradeoffs
- Primary
- Cause
- Logic Gates
- Accident/Incident
- Events
- Example
Probability Theory
- The Math Description of Events
- Boolean Algebra applied to Fault Tree
- Minimum Cut Sets of a Failure Tree
Technical Details of Fault Tree Analysis by Example
- System Availability and Reliability
- Failure frequencies
- Fault Tree Construction
- Gate and event symbols
- Causal relations
- Minimal Cut Sets
- Probability Theory in FTA
- Independent events
- Component Failure and Repair Models
- Constant failure and repair rate, and dormant failure models
- System Quantification
- Minimal cut set unavailabilities
- Non-Coherent Fault Trees
- NOT gates and Exclusive OR gates
- Workshop
- Case Studies