Allocation of Reliability for Civil Aircraft Based on the Combined Weighting Method

In order to better assess the reliability of civil aircraft, this paper applies the combined weighting method to the problem of reliability indicator allocation. This method combine the subjective weights obtained from the analytic hierarchy process (AHP) with the objective weights obtained from the proportional allocation method through the relative entropy algorithm, thus avoiding the limitations of a single weighting method. By using the example of allocating the mean time between failures (MTBF) for the primary flight control system, the paper verifies the applicability and effectiveness of this method for such problems.