Length: 2 Days
Fault Tree Analysis Training
The Fault Tree Analysis (FTA) is a systematic approach to problem-solving, troubleshooting and identifying a failure’s root cause using a diagram.
The 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.
Similar root cause analysis methods include the dependence diagram, the reliability block diagram and Markov analysis. FTA is often compared to FMEA, but there are substantial differences between the two.
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 deductive analysis begins with a general conclusion, then attempts to determine the specific causes of the conclusion by constructing a logic diagram called a fault tree. This is also known as taking a top-down approach.
The primary benefit of fault tree analysis (FTA) is the analysis provides a unique insight into the operation and potential failure of a system.
This allows development teams to explore ways to eliminate or minimize the occurrence of product failure. By exploring the ways a failure mode can occur by exploring the individual failure causes and mechanisms, the changes impact the root cause of the potential failures.
With every product, there are numerous ways it can fail. Some more likely and possible than others. The fault tree analysis permits a team to think through and organize the sequences or patterns of faults that have to occur to cause a specific top level fault.
The top level fault may be a specific type of failure, say the car will not start. Or it may be focused on a serious safety related failure, such as the starter motor overheats starting a fire.
Fault tree analysis also provides an alternative way to analyze the system. 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.
Additionally, fault tree analysis exposes system behavior and possible interactions as well as accounts for human error.
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 also includes hardware, software, and human factors in the analysis as needed. The FTA approach includes the full range of causes for a failure.
Industries that use fault tree analysis for safety analysis and risk mitigation, include:
- Aerospace, aeronautical, and defense operations
- Power generation and system safety
- Cybersecurity system analysis
- Specialty chemical manufacturing
- Healthcare and pharmaceuticals
- Environmental study and disaster management
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
- Logic Gates
- 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
- Case Studies