基于历史数据的飞行器测试价值评估研究

Research on evaluation method of aircraft test based on historical data

飞行器测试过程中测试项目复杂,测试数据较为稳定,测试价值较低。该文针对飞行器测试价值评估方法进行研究,提出一种基于历史数据的飞行器测试价值评估方法,为简化测试项目提供理论依据。该方法对飞行器历年来测试数据进行归一化处理,分别利用标准差法和熵权法获得各项测试参数的客观权重,采用退化模型对测试参数进行二次修正,最后依据D-S证据理论,对各参数进行融合,获得测试项目的测试价值。将该方法应用于某型号飞行器测试中,结果表明对测试价值量化评估较为准确。

The aircraft test process is characterized by complicated test project,relatively stable test data, but relatively low test value. In this paper, studies were carried out on methods of evaluating the aircraft test value, and an evaluation method based on the historical data was proposed,which provided a theoretical basis for the simplification of the test project. With thismethod,normalization of the aircraft test data over the years was conducted,the objective weight of all test parameters was gained with standard deviation method and entropy method respectively,and then the secondary revision of test parameters was carried out with the degradation model.Finally,parameters were integrated to achieve the test value of the project in accordance with the D-S evidence theory. The method was applied to a certain type of aircraft test,and according tothe result,the quantitative evaluation of the test value was relatively accurate.