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Altagamoa Al Khames, Main centre of town, end of 90th Street
New Cairo
Egypt
Faculty of Engineering & Technology

Yehia Hossam El Din

Basic information

Name : Yehia Hossam El Din
Title: Professor
Personal Info: Professor Yehia Hossam El Din - Mechanical Engineering Department

Education

Certificate Major University Year
PhD Department of Mechanical Engineering - Vehicle wisconsin university- Faculty Of Engineering 1986
Masters Department of Mechanical Engineering - Vehicle Military Technical College 1977
Bachelor Department of Mechanical Engineering Military Technical College 1970

Researches /Publications

Fast Switching Valve Utilization to Control Pneumatic Cylinder Speed - 01/1

YEHIA HENDAWY HOSSAMELDIN .

Mohamed Adel Elkashef, Mohamed Aly, Osama E. Mahmoud

01/11/2019

The position and speed of the piston of pneumatic cylinder are very important parameters in evaluating the pneumatic system performance. Utilization of Pulse Width Modulation (PWM) technique to control the Fast Switching Valve (FSV) usually causes fluctuation in the piston motion and accordingly, the system performance deteriorates. The objective of this work is to introduce a novel PWM control technique considering the suitable duty cycles according to the switching frequency in order to improve the FSV characteristics and reduce piston speed fluctuation. A test rig for a simple pneumatic circuit with an FSV as a control element has been designed and realized. The displacement of the piston is measured using a Linear Wire Potentiometer Transducer (LWPT), while its derivative is used to estimate the speed considering a low pass filter to reduce the effect of piston position signal noise. A nonlinear mathematical model is introduced and experimentally validated. The results of both computer simulation and experimental measurements show that the integration between fast switching valve and PWM control signal leads to a quasi-linear relationship between duty cycle and piston speed. Moreover; results proved the successful control of piston speed based on the correct duty cycle and valve switching frequency.

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Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distributionof this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.Published under licence by IOP Publishing Ltd2019 6th International Conference on Mechanical, Materials and ManufacturingIOP Conf. Series: Materials Science and Engineering 689 (2019) 012011IOP Publishingdoi:10.1088/1757-899X/689/1/0120111Fast Switching Valve Utilization to Control Pneumatic Cylinder Speed - 01/1

YEHIA HENDAWY HOSSAMELDIN .

M. Adel Elkashef1, Mohamed Aly2, Osama E. Mahmoud2

01/11/2019

The position and speed of the piston of pneumatic cylinder are very important parameters in evaluating the pneumatic system performance. Utilization of Pulse Width Modulation (PWM) technique to control the Fast Switching Valve (FSV) usually causes fluctuation in the piston motion and accordingly, the system performance deteriorates. The objective of this work is to introduce a novel PWM control technique considering the suitable duty cycles according to the switching frequency in order to improve the FSV characteristics and reduce piston speed fluctuation. A test rig for a simple pneumatic circuit with an FSV as a control element has been designed and realized. The displacement of the piston is measured using a Linear Wire Potentiometer Transducer (LWPT), while its derivative is used to estimate the speed considering a low pass filter to reduce the effect of piston position signal noise. A nonlinear mathematical model is introduced and experimentally validated. The results of both computer simulation and experimental measurements show that the integration between fast switching valve and PWM control signal leads to a quasi-linear relationship between duty cycle and piston speed. Moreover; results proved the successful control of piston speed based on the correct duty cycle and valve switching frequency

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An autonomous hovercraft with minimum energy consumption - 01/0

YEHIA HENDAWY HOSSAMELDIN .

Author(s) T.A. Anter ; S. M. Abdrabbo

01/09/2017

The objective of this work is to introduce an autonomous Hovercraft with minimum Energy consumption. To achieve this goal, a computer simulation in addition to practical testing of a simple hovercraft model have been carried out. A mathematical model for the hovercraft is considered and simulated in the MATLAB/SIMULINK environment. A navigation system with Global Positioning System (GPS) integrated with an Inertial Measurement Unit (IMU) sensors are used to monitor the speed, position, and the direction of the hovercraft for the autonomous operation. Two motors with propellers are used for the lifting and thrust systems, while a third one is used for the rudder movement that controls the direction. Specific resistance (ε) index is used to test the hovercraft performance. The results of the practical experiments of moving the hovercraft between two and three points are compared with that of the computer simulation. The distance error from the actual target has been found to be in the range of about 18%, which proves the idea. It should be noted that this significant error is due to the fact that the GPS considered is a low price commercial one and using more accurate one will result in more satisfactory results. Based on the computer simulation and practical testing results, a look up table has been prepared to help in deriving an algorithm for controlling the RPM of lifting and thrust Fans based on the minimum optimum specific resistance.

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Automatic Adaptation of Tire Pressure According to Operating Conditions - 01/0

YEHIA HENDAWY HOSSAMELDIN .

A. Hendy; Shawky Hegazy; M.A.A. Emam

01/07/2016

The off-road vehicles have much higher rolling resistance due to tire sinkage. This paper presents a proposed system for automatic adaptation for tire inflation/deflation, according to operating conditions. The tire inflation pressure is manually changed by the driver to some prefixed pressure values. The proposed control system is based on calculating the instantaneous wheel slip ratio. As the slip ratio increases, the tire pressure decreases automatically to increase the contact area and to decrease the dynamic sinkage and vice versa. An algorithm for the control strategy is developed. The proposed system provides a continuous monitoring of tire pressures inside the tire and then to inflate/deflate according to terrain types. The results show that a low inflation pressure has a considerable effect on the net traction ratio where it improves the performance by 20% and the buffed tire has a better traction than lugged tire on sand.

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Design and Implementation of a Vision-based Control for a Ball and Plate System - 01/0

YEHIA HENDAWY HOSSAMELDIN .

Osama Ismail, Salah Reda & magdy Roman

01/05/2016

This paper discusses how to achieve the stabilization of a highly non-linear electro-mechanical system that is considered one of the most important problem that found in our life. Therefore, the paper is directed toward achieving stabilization for one of the most famous unstable non-linear electromechanical system in 2 DOF (ball and plate system) using vision-based control. In this paper we will discuss the design of vision-based control strategy for balancing ball and plate system to control ball position and ball motion track using suitable system identification methods. Also different control techniques (classical and modern) will be proposed.

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EVALUATING IN-CAR DESIGN USING A NOVEL UPGRADEABLE - 01/0

YEHIA HENDAWY HOSSAMELDIN .

M. N. Tawfeek1, H. S. Ayoub1 & W. M. Hussein1

01/04/2016

In this work, a novel test is implemented to evaluate in-car design and to differentiate between cars of similar classes. This test is based on a new taxonomy and simple methodological approach that considers three major criteria that integrates most of the human demands from car interior in one test, based on three main weighting factors used for modeling the investigation process namely, ergonomic, economic and technical factors. These later form a set of questions that enable relative and fine comparisons between competitor cars leading to a normalized index that judges the reliability of such plans. The number of questions can be tolerated upon demand and so that their weight such that the resulting grade of the test is a fraction (less than one) termed normalized three weight (NTW) index.

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DESIGN AND IMPLEMENTATION OF NAVIGATION CONTROL SYSTEM FOR UNMANNED GROUND VEHICLES - 01/0

YEHIA HENDAWY HOSSAMELDIN .

A. Khalil* , S. Hegazy* and A.Roheim*

01/04/2016

This paper presents the design and implementation of a navigation control system for Unmanned Ground Vehicles (UGV). Three actuators for steering system, speed control and braking systems are designed and implemented to convert an electric car to be unmanned vehicle. A mathematical model for Ackerman steering is modeled and simulated using MATLAB/SIMULINK. The concept of structure of the system and the modularity and redundancy of the implemented control algorithms are emphasized during system development. The proposed navigation system includes longitudinal control and lateral control. Longitudinal control is responsible for controlling the speed of the vehicle through the accelerator actuator. Lateral control is responsible for controlling the direction by using steering motor. The proposed navigation control system is implemented based on GPS with an integrated digital compass. The distance error of the vehicle position is calculated according to vehicle heading. Of coarse the simulation path from simulation results, is coincident on the required path. Form experimental testing results there are good correlations for actual and required navigation between two points, three points and four points. There is a little difference between actual vehicle path and required path. This is due to using commercial (low-cost) sensors and actuators. The significance of this work is in the understanding of the transition from theory to practice and to integrate the necessary technology for local manufacturing of these types of vehicles.

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A Multi Finger Haptic Hand with Force Feedback - 01/0

YEHIA HENDAWY HOSSAMELDIN .

Mina Ramzy, Emam F. Mohamed & H.E.A. Ibrahim,

01/01/2016

This paper presents a proposal for a twelve degrees of freedom robotic hand system controlled via haptic technology with force control and force feedback. This robotic hand can be used in hazardous environment, deserted places, or aerospace. To achieve this goal, an experimental set up in addition to a computer simulation of this robotic hand system have been carefully designed and built. The experimental set up consists of three main modules which are: the control Glove, the robotic hand, and a microcontroller. An integral controller algorithm is applied to make the robotic hand track and follow the position and movement of the haptic glove with force feedback. Three modes for force limitation are considered according to the application, which are suitable for grasping of: brittle, elastic, and hard components. For computer simulation of the system, a mathematical model has been derived considering a 3 DOF for each finger. To be compatible with robot hand used in the experimental work, only four fingers are considered i.e. total 12 DOF. The experimental work shows good gripping abilities following the glove movement and acceptable force feedback to the user hand, while the simulation results give a qualitative agreement with the experimental ones.

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Mechatronics curriculum development at Philadelphia University in Jordan - 01/0

YEHIA HENDAWY HOSSAMELDIN .

Tarek A. Tutunji , Mazin Jumah, Saber Abd Rabbo

01/02/2007

Mechatronics system engineering has gained global interest in the past decade from the educational and industrial sectors. Several universities in the middle east have introduced mechatronics engineering for undergraduate studies. One of those pioneers is Philadelphia University (PU) in Jordan. This paper presents the mechatronics curriculum developed at Philadelphia University with emphasis on regional needs. The paper also includes comparisons among local and global curricula. It is concluded that there is a rising demand of mechatronics engineering studies in the middle east. Local mechatronics programs must establish strong ties to the local industry and cooperate with global partner universities in order to overcome obstacles such as lack of funded research and design centers.

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