A novelty motion reliability analysis method for locking mechanism of folding wing

Abstract

The locking mechanism of folding wing is investigated as an individual object while the correlation between the locking performance and the deployment process is neglected. Its performance function frequently exhibits complex nonlinear dynamic characteristics and implicity during locking process, making it described by time-consuming dynamic simulation model rather than analytical expressions. Accordingly, when it comes to motion reliability, the physical model requires frequent manual modifications, and the numerous time-consuming simulation models need to be calculated which results in low computational efficiency in motion reliability analysis, especially, in case of small failure probability. Focusing on these problems, a hybrid model, which is based on integrating ADAMS with MATALAB, is established to understand the kinematic and dynamic characteristics of the locking mechanism of folding wing. The hybrid model is composed of a control system and a mechanical subsystem, and can synchronously consider the influences on the locking performance of various critical parameters belonging to the control and controlled systems. The computational efficiency and accuracy of the hybrid model are both verified by comparing with physical and simulation models. A 1D–3D coupling reliability methodology, which is based on the hybrid model, is proposed to analyze the motion reliability for locking mechanism of folding wing. With dividing samples and constructing parallel computation on multi-machine with multiple windows, the motion reliability and sensitivity for locking mechanism of folding wing can be obtained quickly and accurately by the novelty motion reliability analysis method.