WOLFRAM|DEMONSTRATIONS PROJECT

System Availability

​
display
spare parts scenarios
period end histogram
density plot
confidence intervals
seed
1
scenarios
30
operating data
initial spare parts
55
MTTF (hrs)
5500
systems
50
monthly hrs/sys
90
avail. boundary
0.85
y axis origin
0.65
period (months)
36
availability confidence interval
lower percentile
0.25
upper percentile
0.75
TAT lognormal distribution parameters
location γ
3.3
scale μ
2.08
shape σ
0.75
This Demonstration shows the interaction between a system's availability, the system's critical spare part reliability, and the spare part's repair times, throughout a specific operating period. Use the controls to change the corresponding parameters and observe the effects on the system availability, using four different display sets.