摘要
绘制性能曲线是检验航空发动机是否合格的重要工作步骤。利用标准性能曲线板手工绘制往往具有较大的作图和读数误差。变换标准曲线的数值计算方法会带来变换计算量大,求解Y值复杂的问题。求解过程中变换测量点,求出平移和旋转量后,反向变换标准曲线获得实测曲线。通过对平移和旋转量进行编码,采用遗传算法实现了性能曲线逼近。
Drawing performance curves with measured data is an important step of checking the quality of aircraft engines. Drawing in hand with the standard French curve usually has drawing and reading errors. The nuerical calculation of transforming curves causes large amount of transformation calculation and problem of solving the values of Y. The transformation of measured points is taken in solving process. Then, the measured curves are obtained by making standard curves a reverse transformation with solved quantities of motion and rotation. In this way, performance curves are approximated with genetic algorithm in which quantities of motion and rotation are coded.
出处
《测控技术》
CSCD
北大核心
2009年第1期92-94,共3页
Measurement & Control Technology
基金
西北工业大学青年科技创新基金(M016212)
关键词
航空发动机
性能曲线
遗传算法
aircraft engine
performance curves
genetic algorithm
