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Flashcards

1_Risk Analysis

Ben Jenner Part A 1st Year Inglês 32 flashcards

1_Risk Analysis

Flashcards do conjunto (32)

  1. 1Define FailureDeviation from normal design intent or operating standard
  2. 2Define HazardA situation with the potential to cause death, injury, damage, losses or liabilities
  3. 3Define AccidentAn unplanned, uncontrolled
    event giving rise to death,
    injury, ill health, damage or
    loss.
  4. 4Define ConsequencesAn outcome resulting from an
    accident.
  5. 5Define SeveritiesA measure of the consequence
  6. 6=================================== HAZOP ======================================================================
    HAZOP
    ===================================
  7. 7Define Hazard AnalsysisThe identification of events which lead to a hazard and an analysis of way in which these event could occur and how likely harmful effects are
  8. 8What does HAZOP stand for?Hazard and operability studies
  9. 9What actually is Hazop?The application of a formal, systematic, critical examination of the intentions of new facilities to assess the hazard potential of mal-operation of pieces of equipment and the consequential effects on the facility as a whole.
  10. 10Aims of HazopAims to stimulate the imagination of designers and operators in a systematic manner so that they can identify the causes of potential hazards in the design.
  11. 11Who carries out a HAZOP?A team of experts
  12. 12Define Intention (Re. an item in hazop)How the part is expected to function
  13. 13Define deviations (Re. an item in hazop)deviations from the design intention which are discovered by systematic application of the guide words.
  14. 14Define causes (Re. an item in hazop)reasons why deviations might occur. Causes can be classified as realistic or unrealistic.
  15. 15What can we do with unrealistic causesreject them
  16. 16Define Consequences (Re. an item in hazop)the results of the deviations.
  17. 17What are the collums of a HAZOP table left to rightWhat are the collums of a HAZOP table left to right
  18. 18meaning of guidewords? NO/NOT MORE THAN/ LESS THAN AS WELL AS PART OF REVERSE OTHER THANParameter is zero
    increase of decrease in a parameter
    qualitative increase
    qualitative decrease
    opposite
    subsitution
  19. 19Give some standard process parameters the guide words may describe• Pressure
    • Temperature
    • Flow
  20. 20Give some examples of HAZOP application areas• chemical
    • oil and gas
    • pharmaceutical
    • food processing
    • UAVS
    • fork lift truck activities
    • nuclear
  21. 21HAZOP limitations- Cannot detect every weakness
    (e.g. layout problems)
    - Cannot make up for lack of knowledge
    - Assumes system constructed and operated as designed.
  22. 22=================================== FMEA ======================================================================
    FMEA
    ===================================
  23. 23What does FMEA stand for?Failure mode and effects analysis
  24. 24What does FMECA stand for?Failure Mode, Effects and
    Criticality Analysis
  25. 25What does FMECA include that FMEA doesn'tclassification of each potential failure effect according to its severity
  26. 26State and describe the 2 types of FMEA• Product - Analysis of product and how failures effect product operation
    • Process - Analysis of product manufacturing, maintenance and usage and effect on product operation
  27. 27State and describe the 2 FMEA Approaches• Functional - sub assemblies considered e.g. A valve control system
    • Hardware - each component considered e.g. Sensor, controller, valve.
  28. 28What are the first 6 stages of FMEA?1. Define the system
    2. Construct block diagrams
    3. Record all assumptions made
    4. Define failure modes of system
    5. Define failure modes of components
    6. Complete FMEA worksheets.
  29. 29FMEA Stage 1. What must the definition of the system include.• What the system comprises
    • Boundaries and interfaces
    • Function in all operation modes
    • Environment profile
    • System phases
    • System mission and objectives
  30. 30FMEA Stage 2. Hierarchical diagramsFMEA Stage 2. Hierarchical diagrams
  31. 31FMEA Standard tableFMEA Standard table
  32. 32What are the last 2 stages of FMEA?7. Review worksheets to determine reliability critical components
    8. Make recommendations for design improvements and further work

Informações

Descrição
This is the whole of the Risk anlaysis module for Loughborough uni AAE Part A
Criado por
Ben Jenner · abr 2016
Atualizado
28 nov 2016
Visualizações
8
Histórico
  • Criado por Ben Jenner · 24 abr 2016
  • Copiado por Ben Jenner · 24 abr 2016
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