Multivariable controller design for a high performance aero-engine

1994 ◽  
Author(s):  
R. Samar
Keyword(s):  
High Performance ◽  
Controller Design ◽  
Aero Engine ◽  
Multivariable Controller

scholarly journals A Frequency Domain Decoupling Method and Multivariable Controller Design for Turbofan Engines

IEEE Access ◽  
2017 ◽  
Vol 5 ◽  
pp. 27757-27766 ◽  
Author(s):  
Kai Peng ◽  
Ding Fan ◽  
Fan Yang ◽  
Linfeng Gou ◽  
Wei Lv
Keyword(s):  
Frequency Domain ◽  
Controller Design ◽  
Decoupling Method ◽  
Turbofan Engines ◽  
Multivariable Controller

Special Light Weight Aero Engine

1922 ◽  
Vol 26 (136) ◽  
pp. 137-148
Author(s):  
A. E. L. Chorlton
Keyword(s):  
Internal Combustion Engine ◽  
High Performance ◽  
Combustion Engine ◽  
High Heat ◽  
Light Weight ◽  
Aero Engine ◽  
Heat Value ◽  
Aero Engines ◽  
Aviation Engines ◽  
Direct Use

The high performance engine, whether military or commercial, is essentially the light one.The motor which made flying possible was an internal combustion engine, and the basic reason of its success was the direct use of an easily volatile fuel of high heat value, namely, petrol.The first engine developed to use this fuel was that of Daimler, and all motor-car, boat and aviation engines have sprung from this engine.In order to more readily have in mind our problem, we can with advantage briefly run through the main aero engines so far constructed with the progressive results of tests.The engine of Gottlieb Daimler is illustrated by Slide No. I. It had automatic inlet valves and exhaust governing, the latter being a point to be noted.The next slide shows the engine of the Wright Brothers. This engine weighed 8.75 lbs. per B.H.P. inclusive; the most successful engine of to-day weighs under 3 lbs. inclusive.

scholarly journals Dynamic Friction Parameter Identification Method with LuGre Model for Direct-Drive Rotary Torque Motor

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Xingjian Wang ◽  
Siru Lin ◽  
Shaoping Wang
Keyword(s):  
Parameter Identification ◽  
High Performance ◽  
Controller Design ◽  
Identification Accuracy ◽  
Dynamic Friction ◽  
Direct Drive ◽  
Lugre Model ◽  
Friction Behavior ◽  
Identification Method ◽  
Friction Parameter

Attainment of high-performance motion/velocity control objectives for the Direct-Drive Rotary (DDR) torque motor should fully consider practical nonlinearities in controller design, such as dynamic friction. The LuGre model has been widely utilized to describe nonlinear friction behavior; however, parameter identification for the LuGre model remains a challenge. A new dynamic friction parameter identification method for LuGre model is proposed in this study. Static parameters are identified through a series of constant velocity experiments, while dynamic parameters are obtained through a presliding process. Novel evolutionary algorithm (NEA) is utilized to increase identification accuracy. Experimental results gathered from the identification experiments conducted in the study for a practical DDR torque motor control system validate the effectiveness of the proposed method.

scholarly journals Analysis of Parameter Sensitivity Using Robust Design Techniques for a Flatfish Type Autonomous Underwater Vehicle

2009 ◽  
Vol 2009 ◽  
pp. 1-10 ◽  
Author(s):  
M. Santhakumar ◽  
T. Asokan ◽  
T. R. Sreeram
Keyword(s):  
Robust Design ◽  
Pitch Angle ◽  
High Performance ◽  
Autonomous Underwater Vehicle ◽  
Controller Design ◽  
Autonomous Underwater Vehicles ◽  
Angle Variation ◽  
Hydrodynamic Parameters ◽  
And Control ◽  
Design Techniques

Hydrodynamic parameters play a major role in the dynamics and control of Autonomous Underwater Vehicles (AUVs). The performance of an AUV is dependent on the parameter variations and a proper understanding of these parametric influences is essential for the design, modeling, and control of high-performance AUVs. In this paper, the sensitivity of hydrodynamic parameters on the control of a flatfish type AUV is analyzed using robust design techniques such as Taguchi's design method and statistical analysis tools such as Pareto-ANOVA. Since the pitch angle of an AUV is one of the crucial variables in the control applications, the sensitivity analysis of pitch angle variation is studied here. Eight prominent hydrodynamic coefficients are considered in the analysis. The results show that there are two critical hydrodynamic parameters, that is, hydrodynamic force and hydrodynamic pitching moment in the heave direction that influence the performance of a flatfish type AUV. A near-optimal combination of the parameters was identified and the simulation results have shown the effectiveness of the method in reducing the pitch error. These findings are significant for the design modifications as well as controller design of AUVs.

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