Reliability Analysis of Door Locking Based on Improved Cuckoo Algorithm
QIN Qiang;FENG Yun-wen;YE Chen;XUE Xiao-feng;School of Aeronautics,Northwestern Polytechnical University;Chinese Flight Test Establishment;
Locking function of the civil aircraft door plays a significant role in safety and reliability during flight. In order to solve the reliability index of over- center locking,the mechanism's over- center locking safety margin equation of civil aircraft door is transformed into an unconstrained optimization problem. And an improved cuckoo search algorithm is presented to improve the basic cuckoo search algorithm' s convergence speed and accuracy. Then,the proposed algorithm is introduced into the over- center locking reliability analysis. The results show that the calculation accuracy and computational efficiency of the proposed algorithm has improved significantly compared with Monte Carlo method,genetic algorithm in the process of the civil aircraft door over- center locking reliability analysis.