Mathematical Modeling and Performance Evaluation of Electro-Hydraulic Servo Actuators
Tanveer Ahmad, Aeronautical Development Establishment
Tanveer discusses how ADE developed a detailed equation and physical component-based model of a servo valve controlled electro-hydraulic flight control actuator using MATLAB® and Simulink®. The model consists of three modular blocks for servo electronics, servo valve, and hydraulic actuator. A servo amplifier–based lead-lag controller is designed to meet frequency and time response requirements. Various modelling levels from a simple linear model to a detailed nonlinear model for the servo valve are considered. The electrohydraulic servo valve components like torque motor, nozzle-flapper, and spool stage are also modelled in detail. Simple flow-based to nonlinear force-based models are considered for hydraulic actuator as well. The effect of each nonlinearity, including dead band, friction, hysteresis, and compressibility, is considered in the detailed model. Novel methods are introduced to handle friction in equation-based models. MATLAB code is developed for data processing and obtaining the frequency response of the nonlinear models. Various simpler lower-order real-time models are derived from these complex models for hardware-in-the-loop simulation (HILS). A force controller-based model of a testing rig is developed for actuator testing. MATLAB and Simulink can be effective tools for arriving at thresholds for flight operational software based on model studies. Features of the presentation include:
- Fly-by-wire flight control systems and actuators
- Equation and physical component-based model
- Modelling hydraulic components
- Model reduction techniques and linearization
- Modelling non–linearities
- Controller design optimization and DOE
- Loading rig simulation and force controller design
- Software logic verification using models
Recorded: 26 Apr 2017
Related Products
Learn More
Featured Product
MATLAB
Up Next:
Related Videos:
Seleziona un sito web
Seleziona un sito web per visualizzare contenuto tradotto dove disponibile e vedere eventi e offerte locali. In base alla tua area geografica, ti consigliamo di selezionare: .
Puoi anche selezionare un sito web dal seguente elenco:
Come ottenere le migliori prestazioni del sito
Per ottenere le migliori prestazioni del sito, seleziona il sito cinese (in cinese o in inglese). I siti MathWorks per gli altri paesi non sono ottimizzati per essere visitati dalla tua area geografica.
Americhe
- América Latina (Español)
- Canada (English)
- United States (English)
Europa
- Belgium (English)
- Denmark (English)
- Deutschland (Deutsch)
- España (Español)
- Finland (English)
- France (Français)
- Ireland (English)
- Italia (Italiano)
- Luxembourg (English)
- Netherlands (English)
- Norway (English)
- Österreich (Deutsch)
- Portugal (English)
- Sweden (English)
- Switzerland
- United Kingdom (English)
Asia-Pacifico
- Australia (English)
- India (English)
- New Zealand (English)
- 中国
- 日本Japanese (日本語)
- 한국Korean (한국어)