Reliability Toolkit

System Reliability Block Diagram Calculator

Estimate the mission reliability of a simple series, redundant parallel or k-out-of-n nonrepairable architecture.

Engineering inputs

Components must be statistically independent and identical.

Supported range: 1 to 100. Whole numbers only.

Used in k-out-of-n mode; series uses k=n and parallel uses k=1. Supported range: 1 to 100. Whole numbers only.

Probability a single component survives the specified nonrepairable mission. Supported range: 0.0001 to 99.9999.

Results

Your calculation

Enter the inputs and select Calculate.

Model notes

All components must have identical mission reliability and independent failure events. Common-cause failure, standby coverage, repair and load-sharing effects are excluded.

Further reading

Book References

Practical Reliability Engineering

Patrick D. T. O'Connor and Andre V. Kleyner

5th Edition. Wiley, 2012.

ISBN 9780470979822

Book details