...Hui Zhao; Jinfu Liu; Daren Yu This paper aims to develop an applicable nonlinear control technique for aeroengines. An approximate nonlinear model is presented and a rational identification procedure is given. Exact input-output feedback linearization can be easily performed on this model...

... deg, 3 deg, and 4 deg crank angle resolutions. Furthermore, based on the estimated IMEP, we controlled IMEP using a radial basis function network and linear feedback controller. As a result of the study, successful estimation and control were demonstrated through engine experiments. automotive...

... reference value under optimal spark timing operation. The aim of the present work is a comparison between different combustion phase indicators, focusing on the performance attainable by a feedback spark timing control, which uses the indicator as pilot variable. An extensive experimental investigation has...

... engine. In most of these tests, active control was implemented with closed-loop feedback between the observed pressure signal and the phase and gain of imposed fuel perturbations. In contrast, a number of recent papers have shown that open-loop fuel perturbations can disrupt the feedback between...

... because of the combustion instability on the control authority of AIC systems on the basis of theoretical considerations and measurements for an atmospheric test rig with a natural gas-fired swirl burner. 01 10 2003 01 03 2004 fuel systems feedback actuators modulation Mach number...

...P. S. Keogh; M. O. T. Cole This paper investigates the vibration characteristics of rotor displacement signals in a magnetic bearing system under conditions when rotor contact with auxiliary bearings is possible. Since these signals may be used for feedback control, it is necessary to determine how...

...A. K. Chakrabarti; B. Bandyopadhyay The advent of electronic controllers in the field of gas turbine control has allowed the implementation of sophisticated control algorithms. This paper proposes one such method, to design a controller using piecewise constant periodic output feedback, which has...

... , and C ^ m . 1. Measure frequency response functions of the actual rotor-bearing system. Any suitable method for designing the feedback controller may be used: H ∞ , H 2 , etc. ( 3 ). The identification process is a matter of following the steps...

...Stanley S. Sattinger; Yedidia Neumeier; Aharon Nabi; Ben T. Zinn; David J. Amos; Douglas D. Darling Described are sub-scale tests that successfully demonstrate active feedback control as a means of suppressing damaging combustion oscillations in natural-gas-fueled, lean-premix combustors...

.... 07 June 1999 01 Oct 1998 01 Mar 1999 magnetic bearings feedback rotors controllers control systems A significant issue in the design of feedback controllers for any application is the ability to tolerate variability and unmodeled dynamics in the plant: magnetic bearing...

...G. T. Flowers; G. Sza´sz; V. S. Trent; M. E. Greene State feedback controller designs allow for pole placement in an effective manner, but reduction of static offset is difficult. On the other hand, classical control methodology allows for the increase of system type and the elimination of static...