Price: $1,699.00

Length: 2 Days
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Fault Tree Analysis Training


Fault Tree Analysis (FTA) is a tool to analyze the potential for system or machine failure by graphically and mathematically representing the system itself.

Fault Tree Analysis is a top-down approach that reverse-engineers the root causes of a potential failure through the root cause analysis process.

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.

FTA replicates how failure moves through a system. It creates a graphical model of how component failures lead to system-wide failures. These models help reliability engineers create well-defined systems with the proper redundancies that prevent component failures from cascading into system-wide failures – in other words, create more fault-tolerant systems.

There are numerous ways any product could fail. Fault tree analysis permits an organization’s 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 such as a car that won’t start, or it may be focused on a serious safety related failure, such as the starter motor overheats starting a fire.

A complex system may have numerous FTAs that each explore a different failure mode.

The benefits of conducting a Fault Tree Analysis are multi-pronged, including:

  • Improve compliance with safety regulations
  • Map the correlation between failures and subsystems
  • Establish priorities for the system as a whole
  • Implement changes in product or system design to minimize risks
  • Carry out a probabilistic risk assessment (PRA)

Experts in this area point out when there’s an unexpected breakdown or a failure that almost leads to one, it’s good policy to perform a fault tree analysis to get to the root cause. Otherwise, a failure will happen again.

Also, it’s important to understand that the starting point for a Fault Tree Analysis diagram needs to be the failure itself. From that top event onwards, the diagram should grow following a logical sequence – until you determine root cause.

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


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