In order to evaluate the system effectiveness of missile turbojet/turbofan engines,a complete set of missile turbojet/turbofan engine system effectiveness evaluation index system and system effectiveness evaluation model were constructed in a hierarchical theory.The system effectiveness of missile turbojet/turbofan engines was characterized by three aspects:availability,dependability,and capability,X sub-items were used to reflect the indexes of the three aspects,Hierarchy theory was used to determine the influence weights of different indexes to the engine effectiveness,and the model for missile turbojet/turbofan engine system effectiveness evaluation was established.Quantitative evaluation and comparative analysis of the effectiveness of 8 existing turbojet/turbofan engines were conducted.The results show that the effectiveness of the turbofan engine is greater than that of the turbojet engine,the thrust to weight ratio and fuel economy are important factors affecting capability,verifying the effectiveness and feasibility of the model.This study can provide strong decision support for future new programs and improvement programs for missile turbojet/turbofan engines.
维普
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