Research on Identification of Security Hazards and Risk Control of Low-level Windshear Based on Dual Prevention Mechanisms

Based on the construction of the dual prevention mechanism of China's civil aviation, this paper aims at the unavoidable sudden civil aviation security risk of low-altitude windshear, and combines the TF-IDF-LDA theme identification model based on Gaussian function (TG-LDA), Apriori algorithm, and System Dynamics (SD) simulation to carry out the research on the identification of civil aviation hazards and security risk control. Firstly, the TG-LDA model and Apriori algorithm are used to identify the hazard factors under low-level wind shear and initially calculate the influence weights of some factors on the security level; Then, based on the results of hidden danger identification, we constructed the civil aviation security level flow diagram under low altitude wind shear, identified the key risk factors through SD simulation, and analyzed the control strategy of the key risk factors based on the dual preventive mechanism of civil aviation, so as to provide a reference for the civil aviation safety management.