analogstuff
June 17th, 2009, 02:35 AM
This is regarding the question on the reliability simulation. Once the simulation is performed we will get the simulation results in this format in Blocksim 7.
System Overview
General
Mean Availability (All Events):
0.9995
Std Deviation (Mean Availability):
0
Mean Availability (w/o PM & Inspection):
0.9995
Point Availability (All Events) at 10000000:
1
Reliability(10000000):
0
Expected Number of Failures:
669.18
Std Deviation (Number of Failures):
28.598
MTTFF:
16621.8067
System Uptime/Downtime
Uptime:
9995162.357
CM Downtime:
4573.1527
Inspection Downtime:
0
PM Downtime:
264.4904
Total Downtime:
4837.6431
System Downing Events
Number of Failures:
669.18
Number of CMs:
669.18
Number of Inspections:
0
Number of PMs:
246.66
Total Events:
915.84
Costs
Total Costs:
1471456.435
Throughput
Total Throughput:
0
In case i see the Number of failures as 1 or 2 for the system. Still calculate the MTBFO of the System by using Uptime/No of Failures.
To be precise what is the minimum number of failures i should see to calculate the MTBFO value using (uptime/no of failures).
what is the scenario in case i get fractional failures in the system.
one more question is that MTTFF value predicted is by assuming 50% confidance limit. The MTBF values components in my system are at 90% confidance level. Is there any way that i can obatain the MTTFF value at 90% confidance level.
I am very new to this field, sorry if this is a very trivial question for you.
System Overview
General
Mean Availability (All Events):
0.9995
Std Deviation (Mean Availability):
0
Mean Availability (w/o PM & Inspection):
0.9995
Point Availability (All Events) at 10000000:
1
Reliability(10000000):
0
Expected Number of Failures:
669.18
Std Deviation (Number of Failures):
28.598
MTTFF:
16621.8067
System Uptime/Downtime
Uptime:
9995162.357
CM Downtime:
4573.1527
Inspection Downtime:
0
PM Downtime:
264.4904
Total Downtime:
4837.6431
System Downing Events
Number of Failures:
669.18
Number of CMs:
669.18
Number of Inspections:
0
Number of PMs:
246.66
Total Events:
915.84
Costs
Total Costs:
1471456.435
Throughput
Total Throughput:
0
In case i see the Number of failures as 1 or 2 for the system. Still calculate the MTBFO of the System by using Uptime/No of Failures.
To be precise what is the minimum number of failures i should see to calculate the MTBFO value using (uptime/no of failures).
what is the scenario in case i get fractional failures in the system.
one more question is that MTTFF value predicted is by assuming 50% confidance limit. The MTBF values components in my system are at 90% confidance level. Is there any way that i can obatain the MTTFF value at 90% confidance level.
I am very new to this field, sorry if this is a very trivial question for you.