Bayesian reliability assessment method of rocket ejection seat

A Bayesian reliability assessment method for rocket ejection seat is put forward. The method combines the reliability information of the whole seat and its subsystems. The maximum entropy method is used to syncretize the reliability information of subsystems; the calculation formulas of reliability moments of the system are deduced from reliability moments of subsystems; the Bayes theorem is used to evaluate system reliability. With the new method, the reliability of a rocket ejection seat is evaluated that reaches 0.951 under the confidence level 0.90. The result shows that it is effective to use the new method to evaluate the reliability of the rocket ejection seat.