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Mustefa Jibril
Dire Dawa University
  1. Design and Evaluation of Solar Parabolic Trough Collector System Integrated with Conventional Oil Boiler.Mustefa Jibril, Fiseha Bogale Kibret, Venkata Ramayya & Balewgize Amare Zeru - 2021 - ARCHIVES OF ELECTRICAL ENGINEERING 70 (3):657-673.
    In this paper an attempt has been made towards the design and evaluation of a solar parabolic trough collector (PTC) system integrated with a conventional oil boiler (COB) to increase the energy utilization effectiveness and reduce the environmental emission of the existing conventional oil boiler in the Kombolcha textile factory, in Ethiopia. The factory uses 8500 ton/annum of heavy fuel oil to generate 26 ton/hour of pressurized hot water at 140C temperature which causes an increase in greenhouse gas emissions, so (...)
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  2. Position and Speed Control of 2 DOF Industrial Robotic Arm Using Robust Controllers.Mustefa Jibril, Messay Tadese & Reta Degefa - 2020 - Scienceopen Journal 2020 (10):8.
    In this paper, a 2 DOF industrial robotic arm is designed and simulated for elbow and wrist angle and velocity performance improvement using robust control method. Mixed H 2 /H ∞ synthesis with regional pole placement and H 2 optimal controllers are used to improve the system output. The open loop response of the robot arm shows that the elbow and wrist angles and velocities need some improvement. Comparison of the proposed controllers for an impulse and step input signals have (...)
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  3. Quarter Car Active Suspension System Design Using Optimal and Robust Control Method.Mustefa Jibril - 2020 - International Research Journal of Modernization in Engineering Technology and Science 2 (3):197-207.
    This paper offers with the theoretical and computational evaluation of optimal& robust controlproblems, with the goal of providing answers to them with MATLAB simulation.For the robust control,  -synthesis controller and for the optimal control, LQR controller are designed for a quarter car active suspension system to maximize the ride comfort and road handling criteria’s of the vehicle. The proposed controllers are designed using Matlab script program using time domain analysis for the four road disturbances (bump, random sine pavement and (...)
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  4. Robust Control Theory Based Performance Investigation of an Inverted Pendulum System Using Simulink.Mustefa Jibril - 2020 - International Journal of Advance Research and Innovative Ideas in Education 6 (2):808-814.
    In this paper, the performance of inverted pendulum have been Investigated using robust control theory. The robust controllers used in this paper are H∞ Loop Shaping Design Using Glover McFarlane Method and mixed H∞ Loop Shaping Controllers. The mathematical model of Inverted Pendulum, a DC motor, Cart and Cart driving mechanism have been done successfully. Comparison of an inverted pendulum with H∞ Loop Shaping Design Using Glover McFarlane Method and H∞ Loop Shaping Controllers for a control target deviation of an (...)
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  5. Comparison of H∞ and Μ-Synthesis Control Design for Quarter Car Active Suspension System Using Simulink.Mustefa Jibril - 2020 - International Journal of Scientific Research and Engineering Development 3 (1):596-607.
    To improve road dealing with and passenger consolation of a vehicle, a suspension system is supplied. An active suspension system is taken into consideration better than the passive suspension system. In this paper, an active suspension system of a linear quarter vehicle is designed, that's issue to exclusive disturbances on the road. Since the parametric uncertainty within the spring, the shock absorber and the actuator has been taken into consideration, robust control is used. H∞ and µ-Synthesis controllers of are used (...)
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  6. H ∞ and Μ-Synthesis Design of Quarter Car Active Suspension System.Mustefa Jibril - 2020 - International Journal of Scientific Research and Engineering Development 3 (1):608-619.
    To improve the street managing and passenger comfort of a vehicle, a suspension system is furnished. An active suspension device is considered to be better than the passive suspension device. In this paper, 2 degree of freedom of an active suspension system of a linear vehicle are designed, that's challenge to oneof-a-kind disturbances on the road. Since the parametric uncertainty inside the spring, the shock absorber, the mass and the actuator has been taken into consideration, robust control is used. In (...)
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  7. Design and Kinematics Analysis of Suspension System for ABAY Vehicle.Mustefa Jibril - 2021 - Report and Opinion Journal 13 (10):12-24.
    The main objective of the suspension of a vehicle is to maximize the contact between the vehicle tires and the road surface, provide steering stability and provide safe vehicle control in all conditions, evenly support the weight of the vehicle, transfer the loads to springs, and guaranteeing the comfort of the driver by absorbing and dampening shock. This paper discusses the kinematic design of a double a-arm Suspension system for ABAY Vehicle. The hardpoint's location can be determined using this procedure (...)
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  8. Evaluation on Study Skills and Academic Stress on University Engineering Student’s Academic Achievement.Mustefa Jibril - 2021 - ACE Journal of Humanities, Social Sciences and Education 1 (2):18-23.
    This study aimed to examine the influence it is to study skills and academic‐related stress in the academic performance of the students of the university. A descriptive research project was used. The study was carried out among students of engineering at the University of Dire Dawa. The study involved 400 students of the engineering bachelor's degrees, one hundred and from the second to the 5th year which has been evaluated for the academic stress and to study skills. A random sample (...)
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  9. Government School Principals Leadership Style and Its Effect on Academic Achievement in Ethiopia.Mustefa Jibril - 2021 - New York Science Journal 14 (11):10-15.
    This research was conducted at 15 government schools in Addis Ababa. The objectives of this research are to identify principal style and its effect on academic achievement. The “Leader Behavior Description Questionnaire” (LBDQ) formed by Halpin (1966) was used. Meanwhile Academic achievement was measured using the “School Certificate Examination Results from 2017-2020. A total of 191 teachers and 15 principals from government school in Addis Ababa were randomly chosen. Pearson correlation was used to analyze the data. To support data obtained (...)
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  10. Adaptive Control Using Nonlinear Autoregressive-Moving Average-L2 Model for Realizing Neural Controller for Unknown Finite Dimensional Nonlinear Discrete Time Dynamical Systems.Mustefa Jibril, Mesay Tadesse & Nurye Hassen - 2021 - Journal of Engineering and Applied Sciences 16 (3):130-137.
    This study considers the problem of using approximate way for realizing the neural supervisor for nonlinear multivariable systems. The Nonlinear Autoregressive-Moving Average (NARMA) model is an exact transformation of the input-output behavior of finite-dimensional nonlinear discrete time dynamical organization in a hoodlum of the equilibrium state. However, it is not convenient for intention of adaptive control using neural networks due to its nonlinear dependence on the control input. Hence, quite often, approximate technique are used for realizing the neural supervisor to (...)
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  11.  95
    Mechanical Ventilator Design for COVID-19 Patient with Resistive Belt Sensor.Mustefa Jibril - 2021 - ScienceOpen 7 (3):1-9.
    A ventilator is a device that provides cool air by moving the air in or out of the lungs, inhaling a patient who is not fit to smell, or breathing properly. In this paper, a resistive chest belt sensorbased mechanical ventilator is designed to provide the COVID-19 patient with the volume of air you need to deliver with the expansion of the patient's chest in need of more air. The resistive band sensor senses the expansion of the patient's chest and (...)
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  12. Inverted Pendulum Control Using NARMA-L2 with Resilient Backpropagation and Levenberg Marquardt Backpropagation Training Algorithm.Mustefa Jibril, Mesay Tadesse & Nurye Hassen - 2021 - Journal of Engineering and Applied Sciences 16 (10):324-330.
    In this study, the performance of inverted pendulum has been Investigated using neural network control theory. The proposed controllers used in this study are NARMA-L2 with Resilient backpropagation and Levenberg Marquardt backpropagation algorithm controllers. The mathematical model of Inverted Pendulum on a Cart driving mechanism have been done successfully. Comparison of an inverted pendulum with NARMA-L2 with Resilient backpropagation and Levenberg Marquardt backpropagation algorithm controllers for a control target deviation of an angle from vertical of the inverted pendulum using two (...)
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  13. Nonlinear Active Suspension System Control Using Fuzzy Model Predictive Controller.Mustefa Jibril, Mesay Tadesse & Nurye Hassen - 2021 - Journal of Engineering and Applied Sciences 16 (9):289-295.
    Recent years, active suspension system has been widely used in automobiles to improve the road holding ability and the riding comfort. This study presents a new fuzzy model predictive control for a nonlinear quarter car active suspension system. A nonlinear dynamical model of active suspension is established, where the nonlinear dynamical characteristic of the spring and damper are considered. Based on the proposed fuzzy model predictive control method is presented to stabilize the displacement of the active suspension in the presence (...)
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  14.  83
    Chewing Khat Habit Among Students of Dire Dawa University, Ethiopia.Mustefa Jibril - 2021 - Report and Opinion Journal 13 (10):7-11.
    Chewing Khat is one of the leading causes of mental disorders in Ethiopia. An alarming increase in Khat chewing among adults since the early 1990s was reported. Studies have shown that starting chewing Khat early in life is associated with an increased risk of adverse health effects. The objective of the study: This study was conducted to measure the increase in Khat chewing among students at Dire Dawa University students in Dire Dawa City, identify the natural causes of the problem, (...)
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  15. Temperature Control of a Steam Condenser Using NARMA-L2 Controller.Mustefa Jibril, Mesay Tadesse & Nuriye Hassen - 2021 - Journal of Engineering and Applied Sciences 16 (10):318-323.
    This study investigates the outlet temperature control for the design of steam condenser. The comparison has been made for a step drop in the steam condenser temperature set point using MATLAB/ Simulink environment for the steam condenser with NARMA-L2 using Levenberg-Marquardt algorithm and NARMA-L2 using resilient backpropagation algorithm controllers. The steam condenser with NARMA-L2 using Levenberg-Marquardt algorithm controller presented excellent and superior dynamic performance in response to the temperature drop in settling time. The overall simulation results demonstrated that the steam (...)
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  16.  93
    Evaluation on Success of Graduating with Distinction in Higher Education Using Fuzzy DEMATEL Method.Mustefa Jibril - 2021 - ACE International Journal of Social Sciences 1 (1):1-5.
    The aim of this study is the evaluation of the Success of Graduating with Distinction in Higher Education (SGDHE) using the fuzzy DEMATEL method. The observation has been done using cause and effect criteria. The 11 cause and 14 effect clusters have been used in this study. The study result of this work shows that all the effects are connected to the given causes and a cause‐effect graph has been generated for each connection. This proposed approach is demonstrated with the (...)
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  17.  92
    A Study of Emotional Intelligence of Electrical Engineering Students in Dire Dawa University Ethiopia.Mustefa Jibril - 2021 - Report and Opinion Journal 13 (7):5-7.
    The present study was carried out to study the emotional intelligence of Electrical Engineering students in Dire Dawa University Ethiopia. The sample for the study was 90 (30 Industrial control engineering streams, 30 Power system engineering streams, and 30 Communication engineering streams) randomly selected from Dire Dawa university, school of electrical and computer engineering. A sample scale was employed for the data collection and a t-test was employed for the analysis of data. The outcome of the study shows that Industrial (...)
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  18.  88
    Performance Investigation of AC Servomotor Position Control Using Fuzzy Logic and Observer Based Controllers.Mustefa Jibril, Mesay Tadesse & Elias Alemayehu - 2021 - Report and Opinion Journal 13 (1):1-5.
    An AC servomotor which is mostly a two-phase induction motor with two stator field coils placed 90 electrical degrees apart used for controlling position, speed and acceleration in manufacturing industries. In this paper, a two-phase induction motor has been designed with a fuzzy logic and observer based controllers to improve the performance of the system. Comparison of the AC servomotor with the proposed controllers for tracking a step and a square desired position signal input has been done using Matlab/Simulink toolbox (...)
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  19.  73
    The Attitude of Students Concerning Gender and Rural‐Urban Dichotomy in Dire Dawa University.Mustefa Jibril - 2021 - ACE International Journal of Social Sciences 1 (3):28-34.
    The current study was conducted to assess the attitude of higher education students. The current study sample consists of 600 students selected from the Dire Dawa University. The Student Attitude Inventory (SAI) was developed using 6 subsidies given to sample subjects for data collection purposes. The researcher used the most widely accepted and widely used mathematical methods to analyze and interpret data including mean, SD and t‐test. The results showed that male students had a better and more positive attitude towards (...)
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  20.  62
    Integrated Design of Adaptive & Fuzzy Logic Control for Trajectory Tracking of 2 DOF Quadrotor.Mustefa Jibril - 2021 - ScienceOpen 7 (3):1-16.
    Accurate and precise trajectory tracking is crucial for a quadrotor to operate in disturbed environments. This paper presents a novel tracking hybrid controller for a quadrotor UAV that combines the Adaptive and Fuzzy logic controller. The Adaptive fuzzy controller is implemented to govern the behavior of two degrees of freedom quadrotor UAV. The proposed controller allows controlling the movement of UAVs to track a given trajectory in a 2D vertical plane. The Fuzzy Logic system provides an automatic adjustment of the (...)
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  21.  82
    Automatic Heat Dispel System for DINGSON Biscuit Oven Using Thermocouple Temperature Sensor.Mustefa Jibril - 2021 - Journal of Engineering and Applied Sciences 16 (4):147-151.
    In this study, an automatic heat dispel system for DINGSON Biscuit Oven have been designed and simulated using Proteus program successfully. This system uses thermocouple temperature sensor to sense the oven temperature and automatically open and close the dispel system. The temperature in which the dispel open and close can be adjusted any time the operator needs to adjust it.
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  22.  70
    The Evaluation Between Importance of Educational Needs and Satisfaction About It as Perceived by Engineering Students at Dire Dawa University Ethiopia.Mustefa Jibril - 2021 - ACE International Journal of Social Sciences 1 (2):19-24.
    This study aimed to examine the perception of Engineering students about importance of educational needs and satisfaction about it. A descriptive correlational design was used for this study. The present study was conducted at engineering faculties in Dire Dawa University. The present study included a total coverage sample includes all four academic years engineering students during academic year (2021). Total number of students was (n = 727). The study tool consisted of Engineering Education Satisfaction Instrument (EESI) consist of two questions (...)
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  23. Stability Analysis of an Inverted Pendulum on a Cart with the Presence of Restoring and Frictional Forces Disturbance Using Observer Based and Full State Feedback H2 Controllers.Mustefa Jibril, Messay Tadese & Fiseha Bogale - 2020 - Preprints 2020 (10):9.
    In this paper, the stability control of the inverted pendulum on a cart with a disturbance forces has been done using observer based and full state feedback H2 controllers. The Lagrangian equation has been used to model the system equation of motions and linearized the system to the unstable upward position. Comparison of the system stability has been simulated by comparing the proposed controllers using Matlab/Scripts and a promising results has been analyzed successfully.
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  24.  50
    The Prevalence of Addiction Among Students in Dire Dawa University Ethiopia.Mustefa Jibril - 2021 - New York Science Journal 14 (11):16-20.
    This study was carried out to determine the prevalence of, and reasons for the various forms of addictive use among the students of the University of Dire Dawa. The research system is used, cross-sectional, questionnairequestion. This study has been carried out, including the first-and second-year students at the University of Dire Dawa. The study included 164 students who have completed a structured questionnaire. The Data was analyzed on SPSS version 16. The prevalence of addictive use was 20.7%, with 64.7% of (...)
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  25.  66
    The Attitude of Students Towards Learning English Language at Secondary Schools in Dire Dawa Ethiopia.Mustefa Jibril - 2021 - Academia Arena Journal 13 (7):61-64.
    This paper reflects the students' attitude toward learning English in secondary schools. The current study was conducted following 57 students at Dire Dawa secondary Schools. The findings suggest that students were generally uncomfortable with the language and subject areas offered in secondary school and agreed that learning English is important for them. Respondents to the current study, who had recently received their primary education, reported that the secondary school syllabus helped them to acquire the language needed for work and personal (...)
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  26.  51
    Ethiopian Higher Education Students Attitude Towards Physical Education.Mustefa Jibril - 2021 - Researcher Journal 13 (10):23-27.
    The purpose of the existing examination has changed to gain access to the "Ethiopian Higher Education Students' Status of Physical Education". The current study was conducted on 800 students (500 males and 300 females) between the ages of 20 and 26 years. The subjects were Ethiopian Higher Education Students, Addis Ababa, and Dire Dawa. Topics were Ethiopian Higher Education Students, Addis Ababa, and Dire Dawa. The responses collected from the given studies were converted into raw data with the help of (...)
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  27.  46
    Evaluation of Department Head Person Based on Gender, Gender Role Orientation, and Attachment of Labels in Dire Dawa University.Mustefa Jibril - 2021 - New York Science Journal 14 (11):6-9.
    The study, designed to find out the gender outcome, gender roles, and labeling of labels in the department's head examination, was conducted using 194 study participants recruited from lecturers at Dire Dawa University in Ethiopia 116 women and 78 were males aged 29.23. The following five labels are used: Department head in general, efficient male Department head, efficient female Department head, inefficient male Department head, and inefficient female Department head) were responded to by the research participants. Seven different hypotheses were (...)
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  28.  67
    Comparison of a Nonlinear Magnetic Levitation Train Parameters Using Mixed H 2/H Infinity and Model Reference Controllers.Mustefa Jibril, Mesay Tadesse & Nurye Hassen - 2021 - ACE Journal of Computer Science and Engineering 1 (2):17-22.
    To improve the riding performance and levitation stability of a high‐speed magnetic levitation (maglev) train, a control strategy based on mixed H 2/H4 with regional pole placement and model‐reference controllers are proposed. First, the nonlinear maglev train model is established, then the proposed system is designed to observe the movement of a suspension frame and a control strategy based on mixed H 2/H4 with regional pole placement and model‐reference control method are proposed. Test and analysis of the proposed system has (...)
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  29.  44
    The Attitude Towards Using Slide Projectors Among Dire Dawa University Lecturers in Ethiopia.Mustefa Jibril - 2021 - Researcher Journal 13 (10):28-33.
    The present study was conducted to compare the attitude of Dire Dawa University Lecturers Attitude Towards using Slide Projectors. The sample for the proposed study consisted of 120 lecturers (social science: Male=30, Female=30)(Natural science: Male=30, Female=30). A random sampling strategy was followed to draw the sample for the study. The data were subjected to various statistical treatments. The results reveal the male dire Dawa University and Natural science lecturers have a favorable attitude towards using Slide Projectors.
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  30.  47
    New Tuning Approach of Fuzzy Logic System Using Proportional Integral Observer for Tracking a Nonlinear System.Mustefa Jibril - 2021 - ScienceOpen 7 (3):1-13.
    Proportional integral observer (PIO) for tracking a nonlinear method has a lower sentiency to cipher the state and output variables. So a more nonlinear controller has to be else to control to activity. In this paper, a fuzzy logic (FLC) controller has been added to the PIO to meliorate the calculation transmute. A fuzzy proportional integral observer (FPIO) for following a nonlinear system has been premeditated to decimate the susceptibleness to cipher the tell and turnout variables with the existent posit (...)
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  31.  37
    The Comparison of Developing Self Esteem Among Dire Dawa University Male Technology Students.Mustefa Jibril - 2021 - Report and Opinion Journal 13 (10):25-28.
    This study aimed to compare the levels of self-esteem among Dire Dawa University Male Technology students for the program of computer science (CS), Information Technology (IT), Computer Engineering (CE). Subjects for this study were randomly selected. 90 students (30 in Computer Science, 30 in Information Technology, and a 30-in Computer Engineering) were selected as the subjects for this study. The self-esteem of the assessment, so that the student has been Prepared by Rekha Agnihotri self-confidence Inventory (ASCI). For the comparison between (...)
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  32. Design and Control of a Gantry Crane System with Limited Payload Angle Using Robust and State Feedback Controllers.Mustefa Jibril, Mesay Tadesse & Reta Degefa - 2020 - Journal of Engineering and Applied Sciences 15 (24):3770-3777.
    In this study, the performance improvement of a payload angle deflection of a gantry crane has been studied and simulated using MATLAB/Simulink toolbox successfully. H2 optimal and observer based controllers has been used to minimize the payload angular deflection by controlling the trolley position. The gantry crane has been compared with the proposed controllers to track the reference trolley position using step and sine wave signals and a promising results have been achieved.
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  33.  44
    The Impact of Adjustment on Academic Achievement Among University Students in Dire Dawa Ethiopia.Mustefa Jibril - 2021 - New York Science Journal 14 (7):17-20.
    In the present study an attempt is made to assess the comparison of adjustment and academic achievement among students in Dire Dawa university, Ethiopia. A total of 100 students studying in Dire Dawa university were randomly selected. They were administered in Students Adjustment Inventory (SAI) which measured adjustment of an individual in 4 areas (Campus Life, health, time management and social life). Academic achievement scores were collected from the respective university. One-way ANOVA was employed to find out the significance of (...)
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  34.  42
    Comparison of Neural Network NARMA-L2 Model Reference and Predictive Controllers for Electromagnetic Space Vehicle Suspension System.Mustefa Jibril, Mesay Tadesse & Nurye Hassen - 2021 - Journal of Engineering and Applied Sciences 16 (10):313-317.
    Electromagnetic Suspension System (EMS) is mostly used in the field of high-speed vehicle. In this study, a space exploring vehicle quarter electromagnetic suspension system is modelled, designed and simulated using Neural network-based control problem. NARMA-L2, Model reference and predictive controllers are designed to improve the body travel of the vehicle using bump road profile. Comparison between the proposed controllers is done and a promising simulation result have been analyzed.
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  35.  41
    Modeling and Simulation of a Horizontally Moving Suspended Mass Pendulum Base Using H Infinity Optimal Loop Shaping Controller with First and Second Order Desired Loop Shaping Functions.Mustefa Jibril, Mesay Tadesse & Reta Degefa - 2021 - Report and Opinion Journal 13 (1):16-19.
    In this paper, a horizontally moving suspended mass pendulum base is designed and controlled using robust control theory. H  optimal loop shaping with first and second order desired loop shaping function controllers are used to improve the performance of the system using Matlab/Simulink Toolbox. Comparison of the H  optimal loop shaping with first and second order desired loop shaping function controllers for the proposed system have been done to track the desired angular position of the pendulum using step (...)
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  36. State and Disturbance Estimation of a Linear Systems Using Proportional Integral Observer.Mustefa Jibril, Mesay Tadesse & Elias Alemayehu - 2020 - International Research Journal of Modernization in Engineering Technology and Science 2 (4):111-118.
    This paper offers a short survey of linear systems Proportional-Integral-Observer design. This observer has the capacity to estimate simultaneously the states and unknown inputs which include disturbances or model uncertainties appearing on the system. The design of state and output estimation using PO and state, output and disturbance estimation using PIO is done using Matlab/Simulink successfully. The simulation is done for estimating using PO and PIO and the results proved that estimates the state variables and output correctly when there is (...)
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  37. Comparison of Neural Network NARMA-L2 Model Reference and Predictive Controllers for Nonlinear Quarter Car Active Suspension System.Mustefa Jibril - 2020 - International Research Journal of Modernization in Engineering Technology and Science 2 (3):178-188.
    Recently, active suspension system will become important to the vehicle industries because of its advantages in improving road managing and ride comfort. This paper offers the development of mathematical modelling and design of a neural network control approach. The paper will begin with a mathematical model designing primarily based at the parameters of the active suspension system. A nonlinear three by four-way valve-piston hydraulic actuator became advanced which will make the suspension system under the active condition. Then, the model can (...)
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  38. Comparison of PID and MPC Controllers for Continuous Stirred Tank Reactor (CSTR) Concentration Control.Mustefa Jibril, Mesay Tadesse & Elias Alemayehu - 2020 - International Research Journal of Modernization in Engineering Technology and Science 2 (4):133-140.
    Continuous Stirred Tank Reactor (CSTR) is amajorarea in process, chemical and control engineering. In this paper, PID and MPC controllers are designed for CSTR in order to analyze the output concentration of the system by comparing the two proposed systems using Matlab/Simulink. Comparison have been made using two desired concentration input (Random reference and step) signals with and without input side disturbance (Flow rate error). The simulation result shows that the continuous stirred tank reactor with MPC controller have better response (...)
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  39. Design and Control of EMS Magnetic Levitation Train Using Fuzzy MRAS and PID Controllers.Mustefa Jibril, Mesay Tadesse & Elias Alemayehu - 2020 - International Journal of Advance Research and Innovative Ideas in Education 6 (2):1023-1031.
    In this paper, a Magnetic Levitation (MAGLEV) train is designed with a first degree of freedom electromagnetbased totally system that permits to levitate vertically up and down. Fuzzy logic, PID and MRAS controllers are used to improve the Magnetic Levitation train passenger comfort and road handling. A Matlab Simulink model is used to compare the performance of the three controllers using step input signals. The stability of the Magnetic Levitation train is analyzed using root locus technique. Controller output response for (...)
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  40. Comparison of DC Motor Speed Control Performance Using Fuzzy Logic and Model Predictive Control Method.Mustefa Jibril - 2020 - International Research Journal of Modernization in Engineering Technology and Science 2 (4):141-145.
    The main target of this paper is to control the speed of DC motor by comparing the actual and the desired speed set point. The DC motor is designed using Fuzzy logic and MPC controllers. The comparison is made between the proposed controllers for the control target speed of the DC motor using square and white noise desired input signals with the help of Matlab/Simulink software. It has been realized that the design based on the fuzzy logic controller track the (...)
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  41. Performance Investigation of a Two Link Manipulator Stability in the Presence of Torque Disturbance Using Optimal Sliding Mode Controller.Mustefa Jibril, Messay Tadese & Reta Degefa - 2020 - Preprints 2020 (10):10.
    In this paper, a two-link manipulator system stability performance is designed and analyzed using Optimal control technique. The manipulator system is highly nonlinear and unstable. The system is modelled using Lagrangian equation and linearized in upward unstable position. The closed loop system is designed using optimal sliding mode controller. The system is compared with a known PID controller with an impulse applied and disturbance torques and a promising results has been obtained.
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  42. Loudspeaker Noise Disturbance Control Using Optimal and Robust Controllers.Mustefa Jibril, Messay Tadese & Fiseha Bogale - 2020 - Preprints 2020 (10):7.
    Noise reduction is the major issue in the loudspeaker for the application of the musical instruments and related areas. In this paper, a noise disturbance control of a loudspeaker with optimal and robust controllers has been done successfully. The noise of the loudspeaker has been analyzed by simply track a reference cone displacement with the actual cone displacement. Static output feedback and H infinity optimal loop shaping controllers have been used to compare the actual and reference cone displacements by using (...)
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  43. Position Control of a Solenoid Based Linearly Movable Armature System Using Robust Control Technique.Mustefa Jibril, Messay Tadese & Eliyas Alemayehu - 2020 - In Preprints. pp. 8.
    In this paper, a solenoid based linearly movable armature system is designed using robust control theory in order to improve the performance of the system. Reference track method is the best performance analysis for position control systems. Among the robust controllers, H infinity mixedsensitivity and Mixed H 2 /H∞ with Regional Pole Placement Controllers are used to improve the performance of the system. Comparison of the proposed controllers for tracking a reference displacement signals (step and sine wave) and a promising (...)
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  44. Design and Simulation of Voltage Amplidyne System Using Robust Control Technique.Mustefa Jibril, Messay Tadese & Eliyas Alemayehu -
    In this paper, modelling designing and simulation of a simple voltage amplidyne system is done using robust control theory. In order to increase the performance of the voltage amplidyne system with H infinity optimal control synthesis and H infinity optimal control synthesis via gamma-iteration controllers are used. The open loop response of the voltage amplidyne system shows that the system can amplify the input 7 times. Comparison of the voltage amplidyne system with H infinity optimal control synthesis and H infinity (...)
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  45. DC Motor Speed Control with the Presence of Input Disturbance Using Neural Network Based Model Reference and Predictive Controllers.Mustefa Jibril - 2020 - International Research Journal of Modernization in Engineering Technology and Science 2 (4):103-110.
    In this paper we describe a technical system for DC motor speed control. The speed of DC motor is controlled using Neural Network Based Model Reference and Predictive controllers with the use of Matlab/Simulink. The analysis of the DC motor is done with and without input side Torque disturbance input and the simulation results obtained by comparing the desired and actual speed of the DC motor using random reference and sinusoidal speed inputs for the DC motor with Model Reference and (...)
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  46. Design and Control of a Hydraulic Based Tire Changer Using H Infinity and H2 Optimal Synthesis Controllers.Mustefa Jibril, Mesay Tadesse & Elias Alemayehu - 2020 - Botany Research Journal 13 (3):14-19.
    In this study, the design and control of a hydraulic system based tire changer machine have been analyzed and simulated using MATLAB/Simulink Toolbox successfully. The machine have a displacement input which is a leg pedal displacement in order to push the piston of the pump to fed the motor with a pressured hydraulic fluid to rotate the tire with an angular speed to mount and dismount it. Augmentation based H4 and H2 optimal synthesis controllers have been used to improve the (...)
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  47. Comparison of Active and Semi-Active Suspension Systems Using Robust Controller.Mustefa Jibril - 2020 - International Research Journal of Modernization in Engineering Technology and Science 2 (3):136-143.
    Suspension system is used to fulfil the criteria of ride comfort and road handling. In this paper, a quarter car active & semi-active suspension systems are designed using Matlab/Script software. Comparison of active & semi-active suspension systems are done using robust control theory for the control targets suspension deflection, body acceleration and body travel. H infinity controller is selected to compare the two suspensions using time domain analysis. Finally the simulation result prove the effectiveness of the active suspension system by (...)
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  48. Comparison of Neural Network Based Controllers for Nonlinear EMS Magnetic Levitation Train.Mustefa Jibril, Elias Alemayehu & Mesay Tadesse - 2020 - International Journal of Advance Research and Innovative Ideas in Education 6 (2):801-807.
    Magnetic levitation system is operated primarily based at the principle of magnetic attraction and repulsion to levitate the passengers and the train. However, magnetic levitation trains are rather nonlinear and open loop unstable which makes it hard to govern. In this paper, investigation, design and control of a nonlinear Maglev train based on NARMA-L2, model reference and predictive controllers. The response of the Maglev train with the proposed controllers for the precise role of a Magnetic levitation machine have been as (...)
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  49. Comparison of Neural Network NARMA-L2 Model Reference and Predictive Controllers for Nonlinear EMS Magnetic Levitation Train.Mustefa Jibril & Eliyas Alemayehu - 2020 - Report and Opinion Journal 12 (5):21-25.
    Magnetic levitation system is operated primarily based at the principle of magnetic attraction and repulsion to levitate the passengers and the train. However, magnetic levitation trains are rather nonlinear and open loop unstable which makes it hard to govern. In this paper, investigation, design and control of a nonlinear Maglev train based on NARMA-L2, model reference and predictive controllers. The response of the Maglev train with the proposed controllers for the precise role of a Magnetic levitation machine have been as (...)
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  50. Metal Cutting Tool Position Control Using Static Output Feedback and Full State Feedback H2 Controllers.Mustefa Jibril, Messay Tadese & Roman Girma - 2020 - Report and Opinion Journal 12 (9):27-32.
    In this paper, a metal cutting machine position control have been designed and simulated using Matlab/Simulink Toolbox successfully. The open loop response of the system analysis shows that the system needs performance improvement. Static output feedback and full state feedback H 2 controllers have been used to increase the performance of the system. Comparison of the metal cutting machine position using static output feedback and full state feedback H 2 controllers have been done to track a set point position using (...)
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