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ANN-based analysis of thin film Maxwell fluid dynamics with electro-osmotic and nonlinear thermal effects

Alexandria engineering Journal 2025年 127卷 392-410页

作者： Din, Irfan Saif Ud Siddique, Imran Zahid, Zohaib Nadeem, Muhammad Islam, S. Department of Mathematics University of Management and Technology Lahore54770 Pakistan Department of Mathematics University of Sargodha Sargodha40100 Pakistan Mathematics in Applied Sciences and Engineering Research Group Scientific Research Center Al-Ayen University Nasiriyah64001 Iraq Federal University of Technology Paran UTFPR Mechanical Engineering Department DAMEC Postgraduate Program in Mechanical and Materials Engineering PPGEM Research Center for Rheology and Non-Newtonian Fluids CERNN R. Deputado Heitor Alencar Furtado 5000 - Bloco N - Ecoville PR Curitiba81280-340 Brazil Department of Mechanical Engineering Prince Mohammad Bin Fahd University P.O Box 1664 Al Khobar31952 Saudi Arabia

An intelligent Levenberg-Marquardt Technique (LMT) with artificial neural network (ANN) backpropagation (BP) has been used to analyze the thermal heat and mass transfer of unsteady magnetohydrodynamics (MHD) thin film Maxwell fluid flow in a porous inclined sheet with an emphasis on the influence of electro-osmosis. The activation energy, chemical reaction, mixed convection, melting heat, joule heating, nonlinear thermal radiation, variable thermal conductivity and thermal source/sink effect are taken into account for transport expressions. Appropriate similarity transformations were used to translate partial differential equations (PDEs) into ordinary differential equations (ODEs). After that, the built-in MATLAB BVP4C method was used for a data set assessed using the LMT-ANN strategy to solve these ODEs. The physical significance of the designed parameters is thoroughly discussed in both tabular and graphical form. The observed R-squared value is 1, and the mean square error up to 10−15 demonstrates the LMT-ANN's precise and accurate computing capability. The model's validity is also confirmed by the strong agreement between the obtained predicted findings and numerical results, which shows a high degree of accuracy within the range of 10−8 to 10−11. It was revealed that radiative heat considerably increases surface heat energy through accumulation, improving heat transfer qualities, whereas fluid temperature is raised by Joule dissipation, variable thermal conductivity, and heat source. Electro-osmosis and magnetic fields reduce fluid velocity by generating opposing forces that resist the flow. This problem works best in microscale fluid transport systems and drilling operations, where magnetic and electro-osmotic control are crucial. These systems include micro-electromechanical systems, lab-on-a-chip devices, porous geological formations, and thin film coating technologies. © 2025 The Authors

关键词： Activation energy

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Bioprinting Methods for Fabricating In Vitro Tubular Blood Vessel Models

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Cyborg and Bionic Systems 2023年第1期4卷 178-195页

作者： Seon-Jin Kim Min-Gyun Kim Jangho Kim Jessie SJeon Jinsoo Park Hee-Gyeong Yi Department of Rural and Biosystems Engineering College of Agriculture and Life SciencesChonnam National UniversityGwangjuRepublic of Korea Department of Convergence Biosystems Engineering College of Agriculture and Life SciencesChonnam National UniversityGwangjuRepublic of Korea Interdisciplinary Program in IT-Bio Convergence System Chonnam National UniversityGwangju 61186Republic of Korea Department of Mechanical Engineering Korea Advanced Institute of Science and TechnologyDaejeonRepublic of Korea Department of Mechanical Engineering Chonnam National UniversityRepublic of Korea

Dysfunctional blood vessels are implicated in various diseases,including cardiovascular diseases,neurodegenerative diseases,and *** studies have attempted to prevent and treat vascular diseases and understand interactions between these diseases and blood vessels across different organs and *** studies were conducted using 2-dimensional(2D)in vitro and animal ***,these models have difficulties in mimicking the 3D microenvironment in human,simulating kinetics related to cell activities,and replicating human pathophysiology;in addition,3D models involve remarkably high ***,in vitro bioengineered models(BMs)have recently gained *** created through biofabrication based on tissue engineering and regenerative medicine are breakthrough models that can overcome limitations of 2D and animal *** can also simulate the natural microenvironment in a patient-and target-specific *** this review,we will introduce 3D bioprinting methods for fabricating bioengineered blood vessel models,which can serve as the basis for treating and preventing various vascular ***,we will describe possible advancements from tubular to vascular ***,we will discuss specific applications,limitations,and future perspectives of fabricated BMs.

关键词： Blood organs printing

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The Effects of Externally Magnetic Fields and Electrically Conducting Lubricants at Transient Squeeze MEHL Motion with Elastic Coating

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Journal of the Chinese Society of mechanical Engineers, Transactions of the Chinese Institute of Engineers, Series C/Chung-Kuo Chi Hsueh Kung Ch'eng Hsuebo Pao 2022年第1期43卷 29-35页

作者： Chu, Li-Ming Chang, Yuh-Ping Cai-Wan, Chang-Jian Interdisciplinary Program of Green and Information Technology National Taitung University Taitung95092 Taiwan Department of Mechanical Engineering Kun Shan University Tainan71070 Taiwan Department of Mechanical and Automation Engineering I-Shou University Kaohsiung84001 Taiwan

The pure squeeze magneto-elastohydrodynamic lubrication (MEHL) motion of point contacts with an electrically conducting fluid in transverse magnetic field on elastic coating is explored under constant load process. The modified Reynolds, the rheology, the force balance, and the elastic deformation equations must be solved simultaneously to obtain the transient pressure profiles, film shapes, elastic deformation, and normal squeeze velocities. The differences between classical EHL and MEHL are discussed during the pure squeeze process. The simulation results reveal that the effect of externally applied magnetic field is equivalent to enhancing the effective lubricant viscosity. Therefore, as the Hartmann number (M) increases, the effect becomes more obvious. The larger the Hartmann number, the thicker the central film thickness and minimum film thickness, the smaller the maximum central pressure, the later the maximum central pressure and the dimple are formed, the smaller the central normal squeeze velocity. The central pressure decreases with increasing M at the initial stage. The central pressure increases with increasing M at the deformation stage. © 2022, Chinese mechanical engineering Society. All right reserved.

关键词： Magnetos

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Nano-Ceramic Coating's Critical Contribution to Protect Centrifugal Pump Under Difficult Operating Conditions

Nano-Ceramic Coating's Critical Contribution to Protect Cent...

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2024 Advances in Science and engineering technology International Conferences, ASET 2024

作者： Albtoush, Ahmed Almajali, Mohammed Almomani, Hesham Almahadin, Aziz Mutah University Mechanical Engineering Department Karak Jordan Rabdan Academy Defence and Security Program Abu Dhabi United Arab Emirates Hashmite University Industrial Engineering Department Zarqa Jordan Higher Colleges of Technology Faculty of Engineering Technology & Science Dubai United Arab Emirates

ISBN: (纸本)9798350344134

This work is done to investigate and assess the beneficial role and added value of employing a thin layer of nano-ceramic coating to protect the components of a centrifugal pump. A case study is considered, representing a centrifugal pump operating in the Arab Potash Company (APC). The ANSYS software package was used which implements numerical finite element analysis (FEA), 3D modeling, and mathematical simulations. Variables, including Von Mises stresses, deformations, and strains, were investigated associated with a number of situations related to the operation of corrosive potash salt and coating layer. Based on the numerical analysis, the research results revealed that employing a thin layer of ceramic coating protective layer could minimize the dynamic Von Mises strength's impact on the centrifugal pump's impeller and casing by 35.55%. Furthermore, it was found that utilizing a protective layer of thin-nano ceramic could alleviate the total deformations of the centrifugal pump's impeller and casing by 67.01%. It was found that using a protective layer of the thin nano-ceramic could mitigate the equivalent elastic strain on the centrifugal pump's impeller and casing by 90.14%. It was noted that maximum total deformations occur at the tip of the blades. Coating the centrifugal pump parts could improve its components' lifespan by reducing wear, corrosion, and abrasion rates. © 2024 IEEE.

关键词： Abrasion

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Tribology Performance of Silica Nanoparticles as Lubricant Additives in a Reciprocating Four-Stroke Engine Motorcycle

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International Journal of Automotive technology 2023年第2期24卷 435-444页

作者： Lue, Yeou-Feng Hsiao, Wei-Liang Chen, Yi-Shun Undergraduate Program of Vehicle and Energy Engineering National Taiwan Normal University Taipei10610 Taiwan Department of Industrial Education National Taiwan Normal University Taipei10610 Taiwan Department of Mechanical Engineering Asia Eastern University of Science and Technology Taipei22061 Taiwan

Lubricants, such as any types of greases and oils, are usually used to reduce the effect of friction. However, they also have multifunctions that increase the overall performance and application life. To clarify how lubricants decrease friction and reduce friction-related issues, this study evaluated the performance of specific fuel consumption and exhaust emissions (such as hydrocarbon, carbon monoxide, and particulate matter) of motorcycle with nanosilica (nano-SiO2) added to the original lubricant. Lubricants with 0.5, 1.5, 2.5, 3.5, and 4.5 wt.% nano-SiO2 were evaluated after testing their basic properties and conducting tribology tests. The lubricant with 3.5 wt.% nano-SiO2 was the best candidate for the four-stroke engine motorcycle experiments. The results of the tribology experiment with nano-SiO2 lubricant showed that the abrasion loss corresponding to the 3.5 wt.% nano-SiO2 lubricant decreased by an average of 42.43 %. Overall, the 3.5 wt.% nano-SiO2 lubricant improved the effect of lubrication. The primary focus of the current study was the development of nano-SiO2 lubricant technology for applications in industry environments. © 2023, The Korean Society of Automotive Engineers.

关键词： Tribology

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Design and Feasibility Test of In-House Indirect Perfusion Bioreactor for 3-D Cell Culture 15

Design and Feasibility Test of In-House Indirect Perfusion B...

引用

15th Biomedical engineering International Conference, BMEiCON 2023

作者： Suwannaphan, T. Tharasanit, T. Wongpakham, T. Pimpin, A. Chessadangkul, K. King Mongkut's University of Technology North Bangkok Department of Mechanical Engineering Technology Bangkok Thailand Faculty of Veterinary Science Chulalongkorn University Department of Obstetrics Gynaecology and Reproduction Bangkok Thailand Chulalongkorn University Faculty of Engineering Department of Mechanical Engineering Bangkok Thailand Chulalongkorn University Biomedical Engineering Program Faculty of Engineering Bangkok Thailand

ISBN: (纸本)9798350345247

Selection of bioreactor system depends on many factors such as type of products, process of culture, and product density. No standard for development methodology is available nowadays. This work demonstrated the development of multi mini-chamber indirect perfusion bioreactor to support 3-D cell culture. The systems consisted of scaffolds, cell/scaffold retainers, culture tanks with a single peristaltic pump. Flow simulation was conducted to investigate the effects of flow rate and inlets/outlets' position on the distribution of shear stresses on the cell/scaffold cassettes installed inside the bioreactor. The prototype with 4 culture tanks connected in series was tested for long period operation. Lastly, preliminary experiments to culture and differentiate pig muscle stem cells were conducted. The results showed that muscle cells were successfully differentiated both on glass slides and aloe vera scaffolds inside the developed bioreactor. © 2023 IEEE.

关键词： Flow simulation

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On Relation Between Leakage-Free Condition and Differential Filtering Order in ETFE-Based Frequency Responce Function Estimation*

On Relation Between Leakage-Free Condition and Differential ...

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IEEE/ASME (AIM) International Conference on Advanced Intelligent Mechatronics

作者： Yoshihiro Maeda Taishi Yazawa Shimpei Sato Wataru Hara Department of Engineering Electrical and Mechanical Engineering Program Nagoya Institute of Technology Nagoya Japan

ISBN: (数字)9798350355369

ISBN: (纸本)9798350355376

Estimation of an accurate frequency response function (FRF) of a target system is crucial to design fine servo controllers that realize fast and precise positioning control. The empirical transfer function estimation (ETFE) is the most representative and simplest FRF estimation method in terms of industrial utility. However, its applicability is limited to input and output signals of a target system measured during periodic or reciprocating operations, due to leakage errors induced by the discrete Fourier transform. Recently, an FRF estimation method combining ETFE with differential filtering has been proposed, which enables accurate FRF estimation in point-to-point motion. This paper theoretically clarifies the relationship between leakage-free condition and the differential filtering order in the ETFE-based FRF estimation framework. Furthermore, it is demonstrated through simulations that increasing the differential filtering order can broaden the input and output signals acquisition conditions that enables accurate FRF estimation.

关键词： Accuracy Mechatronics Filtering Noise Measurement uncertainty Estimation Transfer functions

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Direct Data-Driven Control-Based Additive Feedforward Compensation for Fast and Precise Positioning Control*

Direct Data-Driven Control-Based Additive Feedforward Compen...

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IEEE/ASME (AIM) International Conference on Advanced Intelligent Mechatronics

作者： Daigo Yamaguchi Shimpei Sato Yoshihiro Maeda Department of Engineering Electrical and Mechanical Engineering Program Nagoya Institute of Technology Nagoya Japan

ISBN: (数字)9798350355369

ISBN: (纸本)9798350355376

In industrial positioning systems where rapid response and high-precision are crucial, minor model inaccuracies due to unknown dynamics and identification errors in controller design significantly impede achieving desired positioning accuracy. This paper introduces and evaluates a novel, direct data-driven control-based additive feedforward (FF) compensation method, aimed at enhancing precision in positioning while streamlining the design process. The purpose of this additive FF compensation is to attenuate undesirable error responses resulting from modeling errors in the existing model-based FF design. The proposed method enhances control performance by utilizing data-driven prediction of positioning response and optimizing the predicted response. Moreover, this work presents a newly developed design theory for the additive FF controller and highlights its design efficiency. The effectiveness of the proposed approach is substantiated through comprehensive experiments with a galvano scanner in printed circuit board laser drilling applications, demonstrating significant improvements in positioning accuracy and response time.

关键词： Drilling Laser theory Additives Accuracy Mechatronics Design methodology Printed circuits

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Continuous Lithium-Ion Extraction From Seawater and Mine Water With a Fuel Cell System and Ceramic Membranes

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Energy & Environmental Materials 2024年第6期 258-265页

作者： Cansu K?k Lei Wang Jean Gustavo A.Ruthes Antje Quade Matthew E.Suss Volker Presser INM-Leibniz Institute for New Materials Department of Materials Science & Engineering Saarland University Leibniz Institute for Plasma Science and Technology Faculty of Mechanical Engineering Technion-Israel Institute of Technology Wolfson Department of Chemical Engineering Technion-Israel Institute of Technology Grand Technion Energy Program Technion-Israel Institute of Technology Saarene-Saarland Center for Energy Materials and Sustainability

The demand for electronic devices that utilize lithium is steadily increasing in this rapidly advancing technological *** high-purity lithium in an environmentally friendly way is challenging by using commercialized ***,we propose the first fuel cell system for continuous lithium-ion extraction using a lithium superionic conductor membrane and advanced *** fuel cell system for extracting lithium-ion has demonstrated a twofold increase in the selectivity of Li+/Na+while producing electricity.

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RoboRuggles: Design of a Combat Robot

RoboRuggles: Design of a Combat Robot

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IEEE Annual Ubiquitous Computing, Electronics & Mobile Communication Conference (UEMCON)

作者： Belinda Truong Brian Nolasco-Ramirez Sophia Sistachs Sophia Puga Ryan Ballard Mackeen Al-Hiraky Shauib Ibraheem Isaiah Alleyne Saurav Basnet Program of Electrical and Computer Engineering Wentworth Institute of Technology Boston MA Program of Electromechanical Engineering Wentworth Institute of Technology Boston MA Program of Mechanical Engineering Wentworth Institute of Technology Boston MA

ISBN: (数字)9798331540906

ISBN: (纸本)9798331540913

With constant access to resources like research papers, LinkedIn, and YouTube videos in the $21^{\text {st }}$ century people are constantly met with images of new and evolving technologies that inspire them to expand their knowledge. An example of this is the TV show BattleBots which inspired this team of students to develop their own 3-pound robot to compete in the National Havoc Robot League (NHRL) in Norwalk, Connecticut against other teams. This paper follows the process in which the team developed a robot, RoboRuggles. The team had a chance to independently work through complex design challenges and use critical thinking skills to select components that met qualifications and constraints of the NHRL robotics competition.

关键词： Video on demand TV Social networking (online) Mobile communication Web sites Robots Videos Qualifications

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