|Table of Contents|

Control-oriented research on dynamic characteristics of fuel regulator(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2012年05期
Page:
7-12
Research Field:
研究与设计
Publishing date:

Info

Title:
Control-oriented research on dynamic characteristics of fuel regulator
Author(s):
QIN Yan-ping;  LI Bin;  LIANG Jun-long;  XU Zhong-jie;  YOU Yu-rong
Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
Keywords:
fuel regulatortransfer functionmodel reductiondynamic characteristic
PACS:
V439-34
DOI:
-
Abstract:
Fuel regulator is one of the key components of fuel control system in airbreathing engine, and its dynamic characteristics are essential to performance optimization and controller. Based on the working principle of the regulator, the nonlinear dynamic model of the fuel regulator was established with the lumped method. Its state space model was gotten by carrying out small deviation linearization, and the transfer functions were obtained by calculation. The influence factors on the regulator performance were analyzed based on transfer functions, which were beneficial for its performance optimization. Furthermore, the transfer functions was simplified by model reduction. The results reveal that the frequency response of the simplified model are consistent with those of the original model, so the simplified model can express the dynamic characteristics of the regulator. The research is fundamental to dynamic characteristics optimization and controller design.

References:

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