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Fault Tree Analysis

( Duration: 2 Days )

Fault Tree Analysis is a systematic method of system analysis and part of operations research in system reliability and safety. It 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 used as an analytical technique for tracing the events. 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.

In Fault Tree Analysis training course, you will learn the concepts of Fault tree analysis as it is used as 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.

COURSE AGENDA

1

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
2

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)
3

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
4

Basic Rules for Fault Tree Construction

  • Tradeoffs
  • Primary
  • Cause
  • Logic Gates
  • Accident/Incident
  • Events
5

Probability Theory

  • The Math Description of Events
  • Boolean Algebra applied to Fault Tree
  • Minimum Cut Sets of a Failure Tree
6

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

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Contact us for delivering this course as a public/open-house workshop/online training for a group of 10+ candidates.

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