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本文采用一种新颖的方法，对大振幅非定常实验数据进行处理，建立了气动导数数据库，在此基础上，运用Ｄｕｈａｍｅｌ积分法，计算了模型迎角按任意规律变化时的非定常空气动力特性。计算结果与实验结果比较表明，两者符合很好。
In this paper, we use a novel method to deal with large-amplitude unsteady experimental data and establish a database of aerodynamic derivatives. Based on this, Duhamel’s integral method is used to calculate the unsteady aerodynamic characteristics . Comparing the results with the experimental results show that the two are in good agreement.