Helicopter System Reliability Analysis Statistical Methods for Reliability Engineering Mark Andersen

System Description and Objective Failure data collected for 3 helicopter components, totaling 40 data points Data accounts for 37% of system failures so we can make a simplified model of the system Perform Probabilistic analysis on failure data to determine an appropriate reliability model of the helicopter system

Methodologies MINITAB Analysis: evaluate data to identify distribution and obtain parameter values  compute descriptive statistics, construct histogram, find good-fitting distributions, select best fitting and determine distribution parameters MAPLE Analysis  determine analytical expressions for the failure probability distribution, survival probability function, hazard function, MTTF and MRL of the system Raptor Simulation  model system and run simulations to compare with results of reliability equations determined with MAPLE

Results and Discussion

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Conclusion: Helicopter System Reliability Model Helicopter system can be simplified and modeled as 3 components in a series system with Weibull distributions