AMESim Simulation of Afterburning Metering Unit for Fuel SystemChinese Full Text

WANG Bin;ZHAO Hao-cen;YE Zhi-feng;Nanjing University of Aeronautics and Astronautics, College of Energy and Power Engineering,Jiangsu Province Key Laboratory of Aerospace Power System;

Abstract: To build the software platform for digital simulation and performance verification of the aeroengine afterburning fuel system,functional modules of the typical metering unit were analyzed with the method of functional division. Both servo valve-following piston and metering valve-constant pressure difference valve were chief components determining the dynamic characteristics of the metering unit in aeroengine, and these two components were modelled mathematically. In view of insufficient design evidences for the characteristic parameters of related components, the metering unit composed mainly of metering valve, constant pressure difference valve and electrohydraulic servo unit was modelled in AMESim platform. After calculated some key structural parameters, the steady and dynamic characteristics were simulated and analyzed. The results show that, based on the system composition, functional division and mathematical modelling of afterburning fuel metering unit can provide guidance for simulation study and parameter design while AMESim can be used for dynamic process and performance prediction.

Keywords：

afterburning fuel system; metering unit; constant pressure difference valve; dynamic characteristics; parameter design;

DOI：
10.13477/j.cnki.aeroengine.2014.05.012
Series：
Subject：
Classification Code：
V233.2

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AMESim Simulation of Afterburning Metering Unit for Fuel SystemChinese Full Text

WANG Bin;ZHAO Hao-cen;YE Zhi-feng;Nanjing University of Aeronautics and Astronautics, College of Energy and Power Engineering,Jiangsu Province Key Laboratory of Aerospace Power System;

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