Please enable JavaScript.
Coggle requires JavaScript to display documents.
RAMS performance criteria courbe - Coggle Diagram
RAMS
performance criteria
Operational concepts
Reliability / Availability - time parameter
MUT (Mean Up Time)
MDT (Mean Down time)
(related to maintainability times)
MTBF (Mean Time Between Failure)
MTTF (Mean Time To Failure)
Maintainability - time parameter
MTTR (Mean Time To Restoration)
Fault Detection Time
Periodicity of tests
Corrective maintenance time
Maintenance support times (logistic and technical delays)
Repair
Time
Administrative delay
Preventive maintenance time
Availability - property
Inherent availability
Achieved availability
Operational availability
Probabilistic concepts
(Un)reliability - property
Parameter
(Instantaneous/average) failure rate
Instantaneous (un-conditional) intensity failure
(Instantaneous/average) failure frequency
Failure density
Related indicators
Importance factors (ex. Birnbaum)
(Un)
reliability
measure
(Un)availabilty - property
Instantaneous availability
Mean availability
Asymptotic availability
Maintainability - property
Parameter
Instantaneous repair rate
MART (Mean Active Repair Time)
Maintainability
measure
Safety - property
SIL-related
(Safety Integrity Level)
IEC 61508 - functional safety of E/E/PE systems
PFH (Probability of dangerous Failure per Hour)
PFDavg (Probability of dangerous
Failure on Demand-Average)
EN 50126 - specs and demo of RAMS
THR (Tolerable Hazard Rate)
