Motycka估算进气最大瞬时畸变方法的改进

一、引言 用Motycka估算方法去估算最大瞬时畸变值很费机时,特别是当采样频率很高,估算时间较长时。为了工程应用,有必要改进这种估算最大瞬时畸变值的方法,以减少估算机时。

IMPROVEMENTS ON MOTYCKA METHOD OF PREDICTING MAXIMUM EXPECTED INSTANTANEOUS INLET FLOW DISTORTION

Statistical properties of the instantaneous distortion index in Motycka method are obtained. Some improvements of Motycka method of predicting the maximum expected instantaneous distortion index are given. A way of predicting the most probable peak instantaneous distortion in a long estimating period duration is presented and the accuracy of the estimation is described. Moreover, factors effecting the accuracy of predicting the most probable peak instantaneous distortion are discussed. Results show that the computing time of the present method is much less than that of Motycka method with about the same degree of accuracy in estimation.