Airworthiness Examination is a kind of verification activity for the results of model development, whose purpose is to ensure that the developed model conforms to its original design; Airworthiness of military aircraft is developed on the basis of Airworthiness of civil aircraft in order to improve the safety of military aircraft. Firstly, in this paper, the Airworthiness Examination process of military and civil aircraft is established. From the perspective of requirements difference, key steps, number of nodes, work content and examination time. The comparative elements of multi-dimensional Airworthiness Examination process of military and civil aircraft are extracted by using structural entropy theory. Secondly, the comparative analysis model of structural entropy is constructed, and the key data such as system time effectiveness entropy and structural entropy corresponding to Airworthiness Examination process of military and civil aircraft are calculated. Finally, this paper puts forward the corresponding measures and suggestions for the Airworthiness Examination process of military aircraft, which has certain practical significance in technical methods and application practice.
The root cause of mission safety problem is the loose combination of safety and mission, and the inadequate traction and restraint of safety by missions. Therefore, an aviation equipment mission safety model is established to study the safety events during mission execution. The definition of mission safety (MS) and the mathematical foundation of the instability domain is given based on the Safety Structure Theory (SST) and three-way decision-making theory(3WD). Factors are used to express the SHEL system and mission system, and then the atomic action factor space (AAFS) is developed to “bear” the state space of the target mission profile, and the atomic SHEL space (ASFS) is developed to “bear” the state space that describes the constraints of the mission system on the SHEL system. The mapping from ASFS×AAFS to ASFS is established, which could transform the evolution of MS into the spatial dynamic trajectory in ASFS. This model can be used in the construction of mission safety analysis platform, the evaluation and prediction.
With the reform of the new military revolution, the pace of war is accelerating, the operational environment is increasingly complex, and weapons and equipment are constantly being upgraded. How to scientifically and effectively evaluate the effectiveness of weapon systems is particularly important. In this paper, the aerospace C4ISR early warning detection system is taken as the research object, and the improved ADC method is used to evaluate its operational effectiveness. Firstly, the structure, mission requirements and functional requirements of the C4ISR early warning detection system are analyzed, and the operational effectiveness evaluation index system of the early warning detection system is constructed. Secondly, the traditional ADC model is improved by using information entropy and grey relational clustering method. The operational effectiveness of the C4ISR early warning detection system was evaluated. Finally, combined with an air defense brigade, the example application analysis and model validity verification were carried out, and relevant countermeasures and suggestions were provided for its system construction optimization based on the evaluation results.
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