Non-intrusive polynomial chaos based mechanism reliability sensitivity analysis

Reliability Sensitivity Analysis aims at quantifying the influence of the change of the uncertain model inputs on the model reliability. The reliability sensitivity measures which are calculated through reliability sensitivity analysis will help a lot because they are used to identify the importance of the statistical characteristics of the uncertain parameters e.g. means, standard deviations, etc. In this paper, a new method is proposed for reliability sensitivity analysis of the mechanism. An airborne retractable mechanism is used to test our new method. Good agreement is observed between the results from the proposed method and the results calculated based on a large number of Monte Carlo simulations, which proves that the proposed method is applicable and efficient for the engineering cases.