Modeling and Simulation of Electrohydraulic systems
MCTR1007
Spring Semester 2011
Dr. Eng. Taher Salah Eldin
Quiz # 3
Date: 04/06/2011
(Answer time: 60 min.)
Name
ID #
Question One: (7 Marks)
a- Sketch the hardware in the loop schematic drawing of the clo

Problem 1:
Given:
The shown servo controlled cylinder drive, with a flow rate signal function of the servo valve.
SV type: 4WSE2ED10-8X/90
M = 150 kg
Q0max = 30 dm3/min
P0 = 140 bar
A = 15.7 cm2
VA = VB = 360 cm3
Eoil = 1x105 N/cm2
Unominal= 10 V
ymax= 2

Modeling and Simulation of Electrohydraulic systems
MCTR1007
Spring Semester 2011
Dr. Eng. Taher Salah Eldin
Quiz # 2
Date: 21/05/2011
(Answer time: 40 min.)
Name
ID #
1
Question One: (6 Marks.)
What is meant by the followings terms:
KQy
KQP
How do the pr

Modeling and Simulation of Electrohydraulic systems
MCTR1007
Spring Semester 2012
Dr. Eng. Taher Salah Eldin
Quiz #1
Date: 24/03/2012
(Answer time: 30 min.)
1
Question One:
The spring mass system with damper shown in the figure is representing the
dynamic

MatLab (Matrix laboratory) is an interactive software system for
numerical computations and graphics. As the name suggests,
MatLab is especially designed for matrix computations: solving
systems of linear equations, computing eigenvalues and
eigenvectors

Modeling and Simulation of Electrohydraulic Systems
Lecture Nine: Hardware in the loop simulation
Dr. Eng. Taher Salah El-Din
Contents
1
Introduction
2
Control Desk Environment
3
Application Example
4
Simulink Model
Modeling and simulation: Lecture 9
2
Co

Modeling and Simulation of Electrohydraulic Systems
Lecture Eight: Linearization of servo cylinder closed loop
position control system (Laplace Transformation and Root Locus
plotting)
Dr. Eng. Taher Salah El-Din
ElectroHydraulics: Lecture 8
1
Contents
1.

Modeling and simulation of
Electrohydraulic Systems
Tutorial 2: Problems
Flow through an orifice
k = Coefficient of contraction
Proportional DCV Equations
List of abbreviations:
QL= load flow rate
Q0= System flow rate
QA,QB = Flow rates of chamber A &

Modeling and Simulation of Electrohydraulic Systems
Lecture 7: Linearization of servo cylinder closed
loop position control system (Simplified model)
Modeling and simulation: Lecture 7
1
Contents
1
Introduction
1.1 Closed loop position control
1.2 Electro

Modeling and Simulation of Electrohydraulic
Systems
Lecture 3: Torque Motor
Dr. Eng. Taher Salah El-Din
3/3/2012
Lecture 3
1
Contents
1
Introduction
2
Electromagnetic Torque Motors
2.1 Introducing Magnetic Circuits
2.2 Magnetic circuit of an Electromagnet

Modeling and Simulation of EH Systems
Lecture 2: Introduction to modeling of EH systems
Dr. Eng. Taher Salah El-Din
2/26/2012
Lecture 2 - Introduction to modeling of EH
systems
1
Contents
1
Steady state modeling
2
Source of equations
3
Conservation of flo

Modeling and Simulation of Electrohydraulic Systems
Lecture 6: Modeling and simulation of a servo
cylinder driven by a servo valve (Detailed model)
Dr. Taher Salah El-din
Modeling and simulation: Lecture 6
1
Contents
1
Components of Electrohydraulic Servo

Modeling and Simulation of Electrohydraulic Systems
Lecture 4: Modeling of Flapper Nozzles system
Dr. Eng. Taher Salah El-Din
Lecture 4
1
Contents
1
Flapper valves
1.1 Concept of flapper valves
1.2 Mathematical modeling of flapper valves
2
Principles of d

Modeling and Simulation of Electrohydraulic Systems
Lecture 5: Modeling of Servo valve main spool and Actuator
Dr. Eng. Taher Salah El-Din
Modeling and Simulation : Lecture 5
1
Contents
1
Modeling of an EHSV main Spool
1.1 Modeling of an EHSV main Spool (