Control Optimization of the Transient Performance of the Selective Bleed Variable Cycle Engine During Mode Transition-Reference-Cited by-同舟云学术

Control Optimization of the Transient Performance of the Selective Bleed Variable Cycle Engine During Mode Transition

Published:2000-02-01 Issue:1 Volume:124 Page:75-81
ISSN:0742-4795
Container-title:Journal of Engineering for Gas Turbines and Power
language:en
Short-container-title:

Author:

Gro¨nstedt U. T. J.¹,Pilidis P.²

Affiliation:

1. Department of Thermo and Fluid Dynamics, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden

2. School of Mechanical Engineering, Cranfield University, Cranfield, Bedford MK43 0AL, UK

Abstract

The transient performance of the selective bleed variable cycle engine (VCE) has been optimized during the transition from subsonic to supersonic mode. The selective bleed VCE concept has been developed with a short take-off vertical landing (STOVL) aircraft in mind and the engine is characterized by its twin mode VCE feature. The transition optimization is constrained by the requirement of maintaining thrust and compressor surge margins. The engine variable geometry component schedules and the fuel flow are used as optimization variables. A differential algebraic formulation of an inter-component volume model is used to model the transient behavior of the engine. Sequential quadratic programming (SQP) is applied to the nonlinear transient engine model directly, in order to solve the multivariable control problem. It is predicted that the mode switch can be carried out safely without violating the constraints and that the time required is limited by the actuator time of the hydraulic system.

Publisher

ASME International

Subject

Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering

Link

http://asmedigitalcollection.asme.org/gasturbinespower/article-pdf/124/1/75/5890331/75_1.pdf

Reference15 articles.

1. Nascimento, M. A. R., and Pilidis, P., 1991, “The Selective Bleed Variable Cycle Engine,” ASME Paper 91-GT-388.

2. Nascimento, M. A. R., 1992, “The Selective Bleed Variable Cycle Engine,” Ph.D. thesis, Cranfield Institute of Technology.

3. Ulizar, I., and Pilidis, P., 1995, “Transition Control and Performance of the Selective Bleed Variable Cycle Turbofan,” ASME Paper 95-GT-286.

4. Oggero, L., and Pilidis, P., 1998, “A Novel Optimization Method for Variable Cycle Engines,” ASME Paper 98-GT-142.

5. Gro¨nstedt, U. T. J., 2000, “Development of Methods for Analysis and Optimization of Complex Jet Engine Systems,” Ph.D. thesis, Chalmers University of Technology.

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