Bettis Hydraulic Actuator

This zip file contains the demonstration model showing a 3-D mechanical model of an aileron actuated with a hydraulic actuator and with an electromechanical actuator. The parameters of the motor are tuned automatically to match measurement data, and the performance of the system is optimized in...

Electrohydraulic servoactuators provide one of the best controllers from the point of view of precision and speed of response. They are used to control wide range of mechanical parameters, such as the displacement, angular displacement, strain, force, and others. They incorporate, mostly, a...

Hydraulic servo actuators (HSAs) are used to precisely control displacement in a wide range of equipment. Generally, a hydraulic servo actuator consists of a hydraulic actuator controlled by a directional control valve of an infinite number of positions and equipped with a feedback arrangement....


Platforms: Matlab

Here is a simple Simulink file to calculate the stiffness of hydraulic spring.The theory is explained in my book:M Galal Rabie, Fluid power Engineering, McGraw-Hill, NY, 2009, pp 235-237


Platforms: Matlab

The model includes simulation of hydraulic line, general fitting and an orifice.


Platforms: Matlab

Part of a hydraulic tool box to generalize the hydraulic system simulation. The outcome of the block are a global hydraulic fluid variables based on the current system pressure and temperature.


Platforms: Matlab

This submission was created by Valery Tchkalov and Steve Miller to help engineers understand parameterization of hydraulic valves. The included white paper, simulation models, and MATLAB scripts cover the structure of a valve model, examples of how to use optimization algorithms to tune your...


Platforms: Matlab

The remarkable advance in hydraulic and electrohydraulic power systems resulted in producing control valves of very short settling time. The rapid closure of hydraulic transmission lines leads to severe pressure surge. The attached Simulink file is developed to evaluate the applicability of...


Platforms: Matlab

These files were used in the webinar on Modeling Mechanical, Electric and Hydraulic Systems in Simulink, which was broadcast on April 6th, 2006.In this webinar (Now Recorded and available from our website), we show how SimulinkdlT« enables faster and more effective development of controlled...


Platforms: Matlab

Lumped Parameter Model of Hydraulic Transmission lineHere is a lumped parameter model of a hydraulic transmission line.The line is modeled by one, two, three, four and ten lump models.The simulation program presents the transient response in addition to experimental results.The theory is...


Platforms: Matlab

Here is a lumped parameter model of a hydraulic transmission line.The line is modeled by one, two, three, four and ten lump models.The simulation program presents the transient response in addition to experimental results.The theory is explained in my book:M Galal Rabie, Fluid power Engineering,...


Platforms: Matlab

Here is a simple Simulink file to calculate the stiffness of hydraulic spring.The theory is explained in my book:M Galal Rabie, Fluid power Engineering, McGraw-Hill, NY, 2009, pp 235-237


Platforms: Matlab

HydroCalc is a tool for quickly performing meaningful hydraulic engineering calculations from a Windows environment. HydroCalc© offers the following computational capabilities and modules: Open-Channel / Uniform Flow Module; Pipe Flow Module; Riverine Cross Section Geometry Module;...


Platforms: Windows

IrriPro is the only software that let you design an irrigation system only by drawing the elements: now it's possible, thanks to the INDO technology (Irrigation Network Data Object) developed by Irriworks, to draw the elements of a system (such as outlets, pipes, etc) and of a terrain, not only...


Platforms: Windows

PackCol performs hydraulic designs for new packed columns or rating calculations for existing columns and towers. The design basis can be approach to flood, maximum capacity or pressure drop. Includes a database of packing types, but custom data can be used. The Eckert and Robbins correlations...


Platforms: Windows

CWSNet was specially designed as a handy and Open Source library for hydraulic simulation of pressurized pipe networks. It is written in C++ using an object-oriented programming (OOP) model, and it is designed to have a modular structure. The library can be easily extended by adding new...


Platforms: Windows

The ThermoFluid library is a free open source physical model library for thermo hydraulic models in the Modelica modeling language.


Platforms: Windows, Mac, Linux

Although many aspects of a control system can be understood based on linear theory, some nonlinear effects must be accounted for in practically all controllers. Windup is such a phenomena, which is caused by the interaction of integral action and saturations. All actuators have limitations: a...


Platforms: Matlab

This simple simulation shows the implementation of FxLMS algorithm for a single channel feed-forward active noise control system. Here, the controller generates an "anti-noise" signal to result a destructive interference at the sensor position. The objective is to minimize the noise residue.The...


Platforms: Matlab

ANTI WIND UP is a simple Matlab Simulink file that allows user to analyze the behavior of 2 digital pid implementations. You can focus on command and process output when the actuator is saturated. You will see that the basic PID exibits an overshoot after an saturation of the actuator. This...


Platforms: Matlab