计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (10): 227-229.

• 工程与应用 • 上一篇    下一篇

固体火箭发动机比冲预示的神经网络仿真研究

王 晔1,段志信1,李 卓2   

  1. 1.内蒙古工业大学 理学院,呼和浩特 010051
    2.中国航天科工集团公司六院41所,呼和浩特 010010
  • 收稿日期:2007-10-25 修回日期:2008-01-21 出版日期:2008-04-01 发布日期:2008-04-01
  • 通讯作者: 王 晔

Neural network simulation study for solid propellant rocket engine of prediction of specific impulse

WANG Ye1,DUAN Zhi-xin1,LI Zhuo2   

  1. 1.College of Science,Inner Mongolia University of Technology,Hohhot 010051,China
    2.The 41st Institude of the Sixth Academy of CASC,Hohhot 010010,China
  • Received:2007-10-25 Revised:2008-01-21 Online:2008-04-01 Published:2008-04-01
  • Contact: WANG Ye

摘要: 运用BP和RBF神经网络方法和Matlab6.5工具软件建立了小样本数据条件下的固体火箭发动机比冲的神经网络预测模型,并将两种神经网络预报的效果进行了比较。两种网络较好的预报效果,表明建立的预测模型是合理的。在此基础上,提出了与之相应的预报误差控制方法及其新型号发动机比冲预测的选模判据。数值实验结果表明,所提供的网络模型可在小样本数据条件下实现发动机比冲性能的高精度预测。

关键词: 固体发动机比冲, RBF神经网络, BP神经网络, Matlab软件, 预报误差控制, 选模判据

Abstract: By using BP,RBF neural network and Matlab6.5 software,the model of prediction of specific impulse of solid propellant rocket engine under the condition of small sample data is established.Compared two kinds of methods,it is shown that the established model is reasonable.So the corresponding controlling method of prediction error and the mode selecting criterion of the specific impulse for new-type solid rocket engine are presented.Results indicate that the network mode provides in the paper can achieve high accurate prediction for the specific impulse property of solid rocket engine under the condition of small sample data.

Key words: solid rocket engine specific impulse, RBF neural network, BP neural network, Matlab software, prediction error control, mode selection criterion