Hello, I am Abdelbaset AitBenAhmed, I am a mechanical engineer. My current research interests concern the monitoring and diagnosis of rotating machinery through vibration and acoustic emission data.
BIO
ABOUT ME
Hello, my name is Abdelbaset Ait Ben Ahmed, I am researcher in mechanical engineering. I obtained my PhD in mechanical engineering from the Faculty of Science and Technology at the University of Sidi Mohamed Ben Abdellah in Fez. My research focuses on using vibration and acoustic emission data to diagnose and identify defects in rotating machinery.
Mechanical engineering
INTERESTS
Mechanical engineering is a diverse field that deals with the design, development, and optimization of mechanical systems, as well as the study of materials under various loading conditions. It encompasses robotics and automation, fluid mechanics and thermodynamics, and the development of new energy technologies. Many mechanical engineers are interested in sustainable design and applying engineering principles to solve real-world problems, such as improving energy efficiency or developing new medical devices.
FACTS
FACTS ABOUT ME
- I am a researcher in mechanical engineering.
- My current research focuses on using vibration and acoustic emission data to identify issues in rotating machinery.
- I am interested in the monitoring and diagnosis of rotating machinery through vibration and acoustic emission data.
- As a mechanical engineer, I have expertise in designing, building, and testing mechanical systems and devices.
- I have a strong foundation in physics, mathematics, and materials science, which are essential for understanding and solving problems in mechanical engineering.
- I have excellent problem-solving and critical thinking skills, which I use to design and improve mechanical systems and devices.
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RESUME
EDUCATION
20172022
Fez, MOROCCO
MECHANICAL ENGINEERING - PHD
FSTF, UNIVERSITY OF SIDI MOHAMED BEN ABDELLAH
Vibration control of rotating machinery defects: using embedded sensors and technologies into smartphones.
20182022
Fez, MOROCCO
English Studies - BA
FLDM, UNIVERSITY OF SIDI MOHAMED BEN ABDELLAH
Bachelor’s degree in English Studies, option: Literature - Faculty of Literature and Human Sciences, USMBA.
ACADEMIC AND PROFESSIONAL POSITIONS
20222023
Oujda, Morocco
Contract Professor - Mechanical Engineering
EST Oujda, UMP - Université Mohammed Premier Oujda
Technology of Mechanical Components.
Machining and Lubrication Technologies.
20182023
Fez, Morocco
ASSISTANT Professeur
FSTF, Université de Sidi Mohamed Ben Abdallah
- Teaching of Practical Work of Thermodynamics and Fluid Mechanics, option BCG.
- Teaching of practical works of Point Mechanics & Optics, option MIP.
- Teaching of Solid Mechanics Projects, option MIP.
- Supervision of five educational projects in mechanical engineering based on my thesis research, in collaboration with the Cité d'innovation de Fès.
20222023
Meknes, Morocco
LAB ASSISTANT
ENSAM - Meknes
Participation in the supervision of practical works at the ENSAM of Meknes - Sheet metal forming by plastic deformation.
01/10/202331/06/2024
Contract Professor - Mechanical Engineering
ENSAH - École nationale des sciences appliquées d'Al Hoceima
Modules:
Semestre I :
- Contrôle de Vibration et du Bruit (CI3)
- Gestion de la Production et de Qualité (CI3)
Semestre II :
- Programmation Avancée sous Matlab (CI1)
- Conception Mécanique Assistée par Ordinateur (CMAO) sous SolidWorks (CI2)
01/07/2024Now
Enseignant-Chercheur
Arts et Métiers campus de Rabat
Mechanical Engineering / Design and System Engineering
HONORS AND AWARDS
20182021
Fez, Morocco
CNRST Excellence scholarship
National Center for Scientific and Technical Research (CNRST)
CNRST Excellence scholarship for scientific research_ ID Number: 2USMBA2018
2017
Fez, Morocco
VibroTeach - Best Project
FSTF, USMBA
VibroTeach is an educational kit that allows students to develop their skills in the field of vibration analysis and monitoring of rotating machinery.
Contrôle vibratoire des défauts des machines : utilisation des capteurs et des nouvelles technologies intégrées dans les smartphones
23Sep2022
Dynamic study of pendulum systems through smartphone-based laboratory experiments
United Kingdom
2021 Phys. Educ. 56 065024, Journal of Physics Education
Journal PaperSelectedA. Ait Ben Ahmed, A. Touache, A. El Hakimi, & A. Chamat
Dynamic study of pendulum systems through smartphone-based laboratory experiments
A. Ait Ben Ahmed, A. Touache, A. El Hakimi, & A. Chamat
Journal PaperSelected
About The Publication
The dynamic study of pendulum systems is considered an indispensable subject for physics and mechanics students in colleges and high schools. In this paper, a detailed methodology is given concerning the use of smartphones in pedagogical practical work for studying the dynamics of pendulum systems. Whereas, three aspects have been discussed through three cases concerning the study of the oscillatory motion, trajectories, and the energy aspect. Besides, some recommendations were provided regarding the process of data acquisition and curve-fitting processing to mitigate measurement errors. Experimental results exhibit a good agreement with theoretical results regarding the period of motion, trajectories, and mechanical energy. This makes the smartphone highlights a real opportunity to be a useful instrument to perform an overall study of the pendulum systems, the thing that was impossible without the intervention of professional equipment.
07Aug2021
Dynamic characteristics of beams under free vibration using the smartphone—laboratory experiments for education
United Kingdom
2022 Phys. Educ. 57 065017, Journal of Physics Education
Journal PaperA. Ait Ben Ahmed, A. Touache, A. El Hakimi and A. Chamat
Dynamic characteristics of beams under free vibration using the smartphone—laboratory experiments for education
A. Ait Ben Ahmed, A. Touache, A. El Hakimi and A. Chamat
Journal Paper
About The Publication
Studying the dynamics of beams is considered an indispensable field for mechanical and civil engineering students. This paper describes, in detail, the use of smartphones in educational practical works to determine and examine the dynamic characteristics of beams subjected to free vibration. Where the smartphone is equipped with a mobile application to acquire the vibration data of the given beams and store it for processing. Three cases have been discussed, in which three types of boundary conditions have been presented. Also, a discussion was presented to show the influence of boundary conditions and material/geometrical properties of beams on the vibration damping of the system. In addition, some recommendations have been stated regarding the data collection and the processing step to mitigate the measurement errors. Experimental results show an agreement with theoretical results regarding the natural frequency and equivalent mass of the beam system which make the smartphone an alternative instrument to teach dynamic vibration of beams in case of the non-availability of professional equipment.
31Dec2021
Experimental Evaluation of MEMS Accelerometers Integrated into Smartphones: A Case Study of Bearing Condition Monitoring
Fez - Morocco
Published Springer, ICDTA 2021: Digital Technologies and Applications pp 1777-1786
Book ChaptersSelectedA. Ait Ben Ahmed, A. Touache, A. El Hakimi, & A. Chamat
Experimental Evaluation of MEMS Accelerometers Integrated into Smartphones: A Case Study of Bearing Condition Monitoring
A. Ait Ben Ahmed, A. Touache, A. El Hakimi, & A. Chamat
Book ChaptersSelected
About The Publication
Over the last decade, smartphones have become an essential part of numerous applications in daily life activities. Contrary to professional equipment, smartphones are available to everyone and are not expensive, which is why it is a valuable opportunity to exploit smartphone capabilities for professional applications. This paper presents an experimental evaluation of integrated MEMS accelerometers into smartphones to assess their performance for vibration monitoring, with the expectation to use them for educational and modest industrial purposes. This study presents an evaluation of two different devices having different specifications, which evaluates the extracted features of the vibration data collected from both devices. A shaking table test was carried out to compare the two MEMS accelerometers results with professional equipment. Finally, a case study was conducted to monitor the condition of two bearings running at low rotational speed (600 rpm) using the vibration data acquired through both smartphones. Experimental results indicate that smartphones can be a useful instrument for monitoring the condition of bearings.
05Nov2020
A new hybrid method for rigid and flexible rotor balancing without phase response measurements
Australia
Journal Article, 2020, Australian Journal of Mechanical Engineering
Journal PaperA. Ait Ben Ahmed, A. Touache, A. El Hakimi, & A. Chamat
A new hybrid method for rigid and flexible rotor balancing without phase response measurements
A. Ait Ben Ahmed, A. Touache, A. El Hakimi, & A. Chamat
Journal Paper
About The Publication
This paper presents a hybrid method, validated through a series of experiments for balancing of rigid and flexible rotors at a constant rotational speed. Unlike existing balancing methods, this hybrid method combines the benefits of the 4-runs method and the Influence Coefficient (IC) method without requiring a response phase measurements to estimate three correction weights so as to minimise rotor balancing errors. The proposed method requires three trial runs without phase measurements to localise the position of unbalance using the centroid concept. Then, calculating the phase angles of each trial run to apply, three times, the IC balancing method. Finally, estimating the overall corrective weight from these three correction weights. A comparative study was used to verify the reliability of this hybrid method as a contrast test. Additionally, two experimental cases were designed to evaluate the method in two different operating environments. Experimental analyses show that the proposed method presents acceptable results, despite the use of a modest instrument such as the smartphone to acquire the vibration signal of the unbalanced rotor. In this context, this paper highlights the oppor- tunities behind smartphones, which can be a reliable tool to perform professional operations such as field balancing for rotating machinery.
31Dec2019
Smartphones- based in educational practice works: a case study of mechanical vibration practical works
Taza - Morocco
Published IEEE, 2019 (ISACS), Taza, Morocco, 2019, pp. 1-6
ConferencesA. Ait Ben Ahmed, A. Touache, A. El Hakimi, & A. Chamat
Smartphones- based in educational practice works: a case study of mechanical vibration practical works
A. Ait Ben Ahmed, A. Touache, A. El Hakimi, & A. Chamat
Conferences
About The Publication
This paper presents three case studies of mechanical vibration manipulation using the smartphone, with the purpose to exploit smartphones in practical educational works. In this contribution, we focus on the use of the acceleration sensor integrated into smartphones to capture the vibration signal of vibratory phenomena such as the pendulum, beam vibration, and rotating machines. In the first case, the main objective of the simple pendulum test is to determine the oscillation period (T), then the determination of the acceleration due to gravity (g).
In the second case study, the objective of the beam vibration test is to determine the damping ratio (𝛇) from the logarithmic decay (𝛅), then the natural frequency (𝝎𝒏) of two different beams with different stiffness (aluminum, and brass beam). In the end, the purpose of the last study is to identify the vibration signature of the unbalance defect in rotating machinery, based on the amplitude and the phase shift of the vibration signal. The experimental results indicate that the smartphone presents acceptable results compared to the theoretical results, which support the validity of using smartphones in education to implement various experimental works.
01Aug2019
The possibility of using a smartphone in a single plane rotor balancing
Rabat - Morocco
MATEC Web of Conferences 286, 03001 (2019), CMM2019, published by EDP Sciences.
ConferencesSelectedA. Ait Ben Ahmed, A. Touache, A. El Hakimi & A. Chamat
The possibility of using a smartphone in a single plane rotor balancing
A. Ait Ben Ahmed, A. Touache, A. El Hakimi & A. Chamat
ConferencesSelected
About The Publication
This paper investigates and describes the possibility of using smartphones in the rotors balancing. It shows, in the beginning, a method to extract the necessary parameters for implementing the field balancing operation. An Android app was developed to record the unbalanced rotors’ smartphone sensor data. The recorded data is then processed and used to identify the quantity of mass necessary and its position via a Matlab app. In the end, the smartphone results were compared to the exact results.
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RESEARCH
LABORATORY TEAM
ABDELHAMID TOUACHE
RESEARCH SUPERVISOR
ABDELHADI EL HAKIMI
RESEARCH CO-SUPERVISOR
ABDERRAHIM CHAMAT
RESEARCH ASSISTANT
RESEARCH PROJECTS
VIBRATORY CONTROL OF MACHINE DEFECTS
Using sensors and new technologies integrated in smartphones
Rotating machine monitoring is important for detecting faults early and tracking their evolution. Many techniques, such as vibration analysis, noise analysis, oil analysis, and thermographic analysis, have been developed to monitor machine defects. We have explored using smartphone sensors as a cheaper alternative to professional equipment and have developed simplified procedures using signal processing and artificial intelligence techniques. We tested smartphone sensors through timing and contrast calibration tests and used them to study beams in dynamics and pendulums. We also used a hybrid method, combining the influence coefficient method and the method without phase measurement, to address the problem of rotor balancing using smartphone accelerometers. For the problem of identifying and classifying rolling defects from sound signatures, we conducted an experimental study using spectral kurtosis and power spectrum methods followed by envelope analysis. We proposed a WFNN-SVM model, based on an artificial neural network and a support vector machine classifier, to make the identification and classification of bearing faults automatic.
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TEACHING
CURRENT
20192022
Fez, MOROCCO
TEACHING ASSISTANT
FSTF, UNIVERSITÉ DE SIDI MOHAMED BEN ABDALLAH
Teaching of Practical Work of Thermodynamics and Fluid Mechanics (option BCG), Point Mechanics & Optics (option MIP), and Solid Mechanics Projects (option MIP).
20222023
Fez, MOROCCO
PROJECT SUPERVISOR
FSTF, UNIVERSITÉ DE SIDI MOHAMED BEN ABDALLAH
Supervision of five educational projects in mechanical engineering based on my thesis research, in collaboration with the Cité d'innovation de Fès.
Feb 2023Jun 2023
Oujda, Morocco
Contract Professor - Mechanical Engineering
Ecole Superieure de Technologie Oujda
Modules:
- Technology of Mechanical Components
- Machining and Lubrication Technologies
Jun 2023Present
Fez, Morocco
Professor in Engineering Sciences
ESI2A - ÉCOLE SUPÉRIEURE D’INGÉNIERIE AUTOMOBILE ET AÉRONAUTIQUE
Modules:
Semestre I:
- Résistance des Matériaux (CI1)
- Dynamique et l'énergétique des systèmes de solides (CI2)
- Conception et modélisation de systèmes mécatroniques (CI2)
Semestre II:
- Thermodynamique (CPI1)
- Conception Assistée par Ordinateur (CAO) : (CAO Volumique, CAO Surfacique, CAO Mécatronique) (CI1)
- Calcul des Structures par Méthode des Éléments finis (CI1)
Oct 2023 Present
Al Hoceima, Morocco
Contract Professor - Mechanical Engineering
ENSAH - Ecole Nationale des Sciences Appliquées d'Al Hoceima
Modules:
Semestre I :
- Contrôle de Vibration et du Bruit (CI3)
- Gestion de la Production et de Qualité (CI3)
Semestre II :
- Programmation Avancée sous Matlab (CI1)
- Conception Mécanique Assistée par Ordinateur (CMAO) sous SolidWorks (CI2)
TEACHING/Training HISTORY
20192020
Fez, Morocco
Training ASSISTANT
Laboratory of Mechanical Engineering, University of sidi mohamed ben abdellah
Training dedicated to engineering students in Structural Vibration Analysis.
20192020
Fez, Morocco
Training about control and identification of machine defects by Vibration Analysis
FSTF, University of sidi mohamed ben abdellah
Teaching and training dedicated to engineering students in Control of machine defects by Vibration Analysis.
20212022
Fez, Morocco
How to effectively design your figures for scientific papers using Adobe Illustrator?
FSTF, University of sidi mohamed ben abdellah
A workshop dedicated to PhD students, entitled "How to effectively design your figures for scientific papers using Adobe Illustrator? ".
02 Mars, 2023
Oujda, Morocco
CATIA V5: Acquérir les Fondamentaux pour la Conception des Produits Industriels
EST OUJDA, UMP - UNIVERSITÉ MOHAMMED PREMIER OUJDA
I am extremely honored to have been invited by the Industrial and Logistic Club of Oujda EST, University of Mohammed Premier, to give a training session entitled :
"CATIA V5: Acquérir les Fondamentaux pour la Conception des Produits Industriels ".
I would like to express my deep gratitude to Professor Faouaz JEFFALI, coordinator of the Industrial Engineering and Maintenance course, as well as to the members of the club for their immense effort.
I was delighted to be able to share my knowledge of industrial product design with the participants and help them gain the skills they need to succeed in their careers.
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SKILLS
PROGRAMMING SKIILLS
MATLAB programming > As a MATLAB programmer, i'm able to utilize the powerful capabilities of this high-level programming language to effectively solve complex problems in the scientific and engineering fields. My strong understanding of the language and its various toolboxes allows me to efficiently manipulate and analyze data, develop algorithms, and create graphical user interfaces. My ability to utilize MATLAB's interactive environment and integrate with other programming languages and tools make me a valuable asset in a wide range of projects. I have a proven track record of successfully using my MATLAB programming skills to achieve results and effectively communicate your solutions.
Python > With my strong programming skills in Python and background in mechanical engineering, I have the ability to tackle a wide range of tasks and challenges in your field. My proficiency in Python allows me to utilize libraries and frameworks such as NumPy and SciPy for numerical computing, and PyStruct for structural modeling, to efficiently analyze and manipulate data, conduct simulations, and create visualizations. These skills, combined with my knowledge of mechanical engineering, make me a valuable asset in projects and enable me to confidently take on new challenges.
LEVEL : ADVANCEDEXPERIENCE : 3 YEARS
PythonMechanical engineeringNumPy, SciPy
DESIGN SKILLS
Graphic Design for Scientific Research > My skills in graphic design, combined with my strong background in scientific research, make me a valuable asset in the field. My ability to create visually appealing graphics and figures that effectively communicate complex scientific concepts is a unique and invaluable skill. My attention to detail and professional-quality designs ensure that my graphics are accurate and effective in presenting my findings to a wide range of audiences. My skills in designing figures, diagrams, and posters are a powerful tool in your research endeavors, helping others to understand and remember my work more easily.
SMARTPHONE-BASED EDUCATION is an innovative project that aims to utilize smartphones as a tool for education. The project recognizes the widespread accessibility and use of smartphones, and seeks to harness this technology for the benefit of learners. Through the use of educational apps and other resources, the project aims to provide learners with access to a wide range of educational materials and resources, and to enhance the educational experience through the use of interactive and engaging technology. The goal of the SMARTPHONE-BASED EDUCATION project is to make education more accessible, interactive, and effective for learners of all ages and backgrounds, and to use the power of technology to break down barriers and improve outcomes for students.
In addition, the SMARTPHONE-BASED EDUCATION project represents a significant step forward in the use of technology for education. By leveraging the widespread accessibility and use of smartphones, the project has the potential to reach a large and diverse audience of learners, and to provide them with access to high-quality educational materials and resources. The interactive and engaging nature of the technology used in the project also has the potential to enhance the educational experience for learners, and to promote deeper learning and understanding. Overall, the SMARTPHONE-BASED EDUCATION project has the potential to make a positive impact on the field of education, and to help learners of all ages and backgrounds reach their full potential.
ROTATING MACHINESScientific Research
Monitoring of rotating machines with low-cost instruments
Monitoring of rotating machines with low-cost instruments
About The Project
Monitoring and diagnosis of rotating machines with low-cost instruments is a important area of research in the field of machine maintenance and reliability. Rotating machines, such as motors and pumps, are critical components in many industrial and commercial systems, and their proper functioning is essential for the smooth operation of these systems. To ensure that rotating machines are operating at optimal levels, it is important to regularly monitor their performance and diagnose any issues that may arise. Traditional methods for monitoring and diagnosis of rotating machines can be costly and time-consuming, but the use of low-cost instruments has the potential to significantly reduce these costs and improve the efficiency of the process. By developing and implementing low-cost monitoring and diagnosis methods, it is possible to improve the reliability and performance of rotating machines, and to minimize the impact of machine failures on industrial and commercial operations.
One of the key benefits of using low-cost instruments for monitoring and diagnosis of rotating machines is that it allows for more frequent and regular assessments of machine performance. This can help to identify problems before they become serious and result in costly downtime or repair. Additionally, the use of low-cost instruments can make it possible to monitor a larger number of machines, increasing the overall coverage and effectiveness of the maintenance program. By implementing a monitoring and diagnosis program with low-cost instruments, it is possible to improve the reliability and performance of rotating machines, and to reduce the overall cost of maintenance and repair. Overall, the use of low-cost instruments for monitoring and diagnosis of rotating machines represents a significant advance in the field of machine maintenance and reliability, and has the potential to significantly improve the performance and efficiency of industrial and commercial systems.
EDUCATIONGraphic DesignScientific Research
Graphic Design for Scientific Researchers
Graphic Design for Scientific Researchers
About The Project
Graphic design is an important tool for scientific researchers, as it allows for the effective communication of complex ideas and data. By using visual elements such as charts, diagrams, and graphs, researchers can clearly and concisely present their findings to a wider audience. Graphic design can also be used to create engaging and effective materials for conferences, publications, and other outreach activities.
Effective graphic design for scientific researchers requires a combination of technical skills and creative problem-solving. Researchers must be able to clearly and accurately represent their data, while also finding ways to make it visually appealing and easy to understand. In addition to being proficient in design software such as Adobe Illustrator and Photoshop, scientists must also have a good understanding of design principles such as composition, color theory, and typography. By using these skills and techniques, researchers can create visually compelling and informative materials that effectively communicate their work to a wide range of audiences.
3D PrintingEDUCATION
3D Printing for Education
3D Printing for Education
About The Project
3D printing technology has the potential to revolutionize the way that students learn and engage with subjects. By allowing students to create physical objects from digital designs, 3D printing enables hands-on, experiential learning that can be both fun and educational.
3D printing can help students develop a wide range of skills, including creativity, problem-solving, critical thinking, and collaboration. By giving students the ability to design and print their own creations, 3D printing encourages them to think creatively and to come up with original solutions to problems. It also requires students to plan and execute their designs, which can help to develop problem-solving and critical thinking skills. Additionally, because 3D printing often involves working in teams, it can also promote collaboration and communication among students.
In addition to these general skills, 3D printing can also help students develop technical skills such as computer-aided design (CAD), prototyping, and manufacturing. By using 3D printing software and equipment, students can learn how to create and manipulate digital models, and can experiment with different design techniques and materials. This can provide a valuable foundation for careers in fields such as engineering, design, and manufacturing, and can help students to stand out in a competitive job market.
Overall, the use of 3D printing in education has the potential to be a powerful tool for developing a wide range of skills that are important for success in today’s world.
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CONTACT
contcat me!
GET IN TOUCH
"Hello fellow scientists! If you have any questions or would like to collaborate on a project, don't hesitate to reach out. I'm always looking for opportunities to learn and grow within the scientific community."
