Pub Date : 2023-07-30DOI: 10.24018/ejeng.2023.8.4.2956
Hema Vanasarla, Herman Tang, Philip Rufe
Additive manufacturing (AM or 3D printing) is known for large capacities like design freedom, reduced tooling, and production hours. AM evolving exciting advancements for new business models in different industries. Few research papers and studies are limited to material specifications, processes, or quality issues. So, this literature review combined with considerations of AM for polymers materials to quality process to get basic ideas or to lay the groundwork for future researchers. To outline the critical points for investigative queries and identify research gaps in this literature with primarily detailed info on innovation technologies. This review states polymers materials optimization and its manufacturing, all-purpose design considerations, and limitations define CAD source printing and step-by-step quality processes for the fortitude of the analysis to create previous research intended to advantage researchers for future business practices in Industrial revolution 4.0.
{"title":"Latest Technologies, Design Considerations, and Quality Concerns of Additive Polymers Manufacturing","authors":"Hema Vanasarla, Herman Tang, Philip Rufe","doi":"10.24018/ejeng.2023.8.4.2956","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.4.2956","url":null,"abstract":"Additive manufacturing (AM or 3D printing) is known for large capacities like design freedom, reduced tooling, and production hours. AM evolving exciting advancements for new business models in different industries. Few research papers and studies are limited to material specifications, processes, or quality issues. So, this literature review combined with considerations of AM for polymers materials to quality process to get basic ideas or to lay the groundwork for future researchers. To outline the critical points for investigative queries and identify research gaps in this literature with primarily detailed info on innovation technologies. This review states polymers materials optimization and its manufacturing, all-purpose design considerations, and limitations define CAD source printing and step-by-step quality processes for the fortitude of the analysis to create previous research intended to advantage researchers for future business practices in Industrial revolution 4.0.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75726415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-19DOI: 10.24018/ejeng.2023.8.4.3072
Nikita Koriuchev, Oleksii Kovtun, Daniel Shehovsov, I. Tkalenko
In the briquetting process of various finely dispersed materials using the auger pressing method, an important issue is extending the service life and repairing worn-out elements, such as the auger, die, and lining. This study provides a literature review and industrial experience in repairing worn-out parts of industrial presses. It formulates the main approaches for restoring abrasive surfaces and presents the results of experimental studies aimed at prolonging the lifespan of augers in briquette presses using surfacing methods, including using powders obtained from solid alloy waste.
{"title":"Repair of Worn-Out Parts of Auger Presses by Surfacing Method","authors":"Nikita Koriuchev, Oleksii Kovtun, Daniel Shehovsov, I. Tkalenko","doi":"10.24018/ejeng.2023.8.4.3072","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.4.3072","url":null,"abstract":"In the briquetting process of various finely dispersed materials using the auger pressing method, an important issue is extending the service life and repairing worn-out elements, such as the auger, die, and lining. This study provides a literature review and industrial experience in repairing worn-out parts of industrial presses. It formulates the main approaches for restoring abrasive surfaces and presents the results of experimental studies aimed at prolonging the lifespan of augers in briquette presses using surfacing methods, including using powders obtained from solid alloy waste.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72840641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-19DOI: 10.24018/ejeng.2023.8.4.3075
El-Sayed A. El-Kasaby, M. Awwad, Mohab Roshdy, A. A. Abo-Shark
This study investigates the influence of biaxial geogrids on the flexural behavior of square footing foundations reinforced with glass fiber reinforced concrete (GFRC). Experimental research is conducted, involving the testing of five reinforced concrete square footings under area loading until failure. The variables considered are the number of geogrid layers and the percentage of longitudinal reinforcement. Various parameters including deflection, loads at each stage, stiffness, ductility, energy absorption, crack patterns, as well as strains in steel, concrete, and geogrid, are analyzed and compared. The results reveal that incorporating geogrid layers as a reinforcement technique with GFRC significantly enhances the flexural behavior of the footings and improves cracking patterns. The number of geogrid layers used in the footings substantially increases the loads at each stage. Furthermore, an empirical equation is developed to establish a correlation between the moment acting on the footings and the tensile strength of geogrid reinforcement. The empirical evidence demonstrates a substantial improvement in the strength resistance of geogrid-reinforced footings with GFRC, surpassing those reinforced with steel and normal concrete mix. This research contributes valuable insights for the design and construction of earth structures, highlighting the advantages of biaxial geogrids in reinforcing GFRC footings with enhanced flexural performance.
{"title":"Behavior of Square Footings Reinforced with Glass Fiber Bristles and Biaxial Geogrid","authors":"El-Sayed A. El-Kasaby, M. Awwad, Mohab Roshdy, A. A. Abo-Shark","doi":"10.24018/ejeng.2023.8.4.3075","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.4.3075","url":null,"abstract":"This study investigates the influence of biaxial geogrids on the flexural behavior of square footing foundations reinforced with glass fiber reinforced concrete (GFRC). Experimental research is conducted, involving the testing of five reinforced concrete square footings under area loading until failure. The variables considered are the number of geogrid layers and the percentage of longitudinal reinforcement. Various parameters including deflection, loads at each stage, stiffness, ductility, energy absorption, crack patterns, as well as strains in steel, concrete, and geogrid, are analyzed and compared. The results reveal that incorporating geogrid layers as a reinforcement technique with GFRC significantly enhances the flexural behavior of the footings and improves cracking patterns. The number of geogrid layers used in the footings substantially increases the loads at each stage. Furthermore, an empirical equation is developed to establish a correlation between the moment acting on the footings and the tensile strength of geogrid reinforcement. The empirical evidence demonstrates a substantial improvement in the strength resistance of geogrid-reinforced footings with GFRC, surpassing those reinforced with steel and normal concrete mix. This research contributes valuable insights for the design and construction of earth structures, highlighting the advantages of biaxial geogrids in reinforcing GFRC footings with enhanced flexural performance.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88419081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-09DOI: 10.24018/ejeng.2023.8.4.3064
Shaman Bhat, Ashwin Kavasseri
The adoption of robotic surgical procedures over wireless 5G networks has increased rapidly in recent years, providing improved precision and patient outcomes. However, the security and reliability of the end-to-end information between the surgeon's control console and the robotic system are critical concerns. This paper proposes a solution to enhance the security and reliability of the authentication process in robot-assisted surgery by enhancing existing authentication mechanisms. The proposed solution builds upon the existing Transport Layer Security (TLS) protocol, and introduces additional security measures, including biometric authentication and multi-factor authentication while minimizing latency and delay in transmission. The effectiveness of the proposed solution is evaluated through simulation and testing, demonstrating its ability to provide enhanced security for robot-assisted surgery. The proposed solution has the potential to provide an additional layer of security while staying in realistic bounds of latency and delay in data transmission.
{"title":"Enhancing Security for Robot-Assisted Surgery through Advanced Authentication Mechanisms Over 5G Networks","authors":"Shaman Bhat, Ashwin Kavasseri","doi":"10.24018/ejeng.2023.8.4.3064","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.4.3064","url":null,"abstract":"The adoption of robotic surgical procedures over wireless 5G networks has increased rapidly in recent years, providing improved precision and patient outcomes. However, the security and reliability of the end-to-end information between the surgeon's control console and the robotic system are critical concerns. This paper proposes a solution to enhance the security and reliability of the authentication process in robot-assisted surgery by enhancing existing authentication mechanisms. The proposed solution builds upon the existing Transport Layer Security (TLS) protocol, and introduces additional security measures, including biometric authentication and multi-factor authentication while minimizing latency and delay in transmission. The effectiveness of the proposed solution is evaluated through simulation and testing, demonstrating its ability to provide enhanced security for robot-assisted surgery. The proposed solution has the potential to provide an additional layer of security while staying in realistic bounds of latency and delay in data transmission.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87512161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study determined the effect of cylinder speed, feed rate and tray angle on the dehulling efficiency and the effect of fan speed, feed rate and tray angle on the cleaning efficiency and grain loss from an acha ( Digitaria exilis) dehulling machine in a 3 × 3 factorial experimental design in three replicates. The cylinder speeds were 1500, 2000 and 2500 rpm and the fan speeds were 160, 185 and 213 rpm. The feed rates were 20, 30 and 40 g min -1 and tray angles of 22.5°, 45°, and 67.5°. The results were analyzed using the analysis of variance at p ≤ 0.05 to determine if the speeds and tray angle inclinations had a significant effect on the dehulling efficiency, cleaning efficiency and grain loss at the various feed rates. The Duncan’s New Multiple Range Test was used to separate the means where there was significant difference. The feed rate had no significant effect on the dehulling and cleaning efficiencies and grain loss. The speeds and tray angles had a significant effect on the dehulling and cleaning efficiencies and grain loss. The dehulling efficiency was higher at higher tray angles. The cleaning efficiency was higher at the higher fan speeds and tray angles. The grain loss from the machine was higher at the higher fan speeds and lower at the higher tray angles.
采用3个重复的3 × 3因子试验设计,研究了滚筒转速、进料速率和托盘角度对马地黄脱壳机脱壳效率的影响,以及风机转速、进料速率和托盘角度对马地黄脱壳机脱壳效率和籽粒损失的影响。气缸转速分别为1500、2000和2500转,风扇转速分别为160、185和213转。进料速度分别为20、30和40 g min -1,托盘角度分别为22.5°、45°和67.5°。采用p≤0.05的方差分析对结果进行分析,以确定在不同进料速率下,速度和塔板倾角对脱壳效率、清洗效率和谷物损失是否有显著影响。采用Duncan’s New Multiple Range Test对有显著差异的均数进行分离。进料速率对脱壳、清壳效率和籽粒损失无显著影响。速度和塔板角度对脱壳、清壳效率和颗粒损失有显著影响。塔板角度越大,脱壳效率越高。风机转速和托盘角度越高,清洗效率越高。风机转速越高,谷物损失越大,托盘角度越大,谷物损失越小。
{"title":"Effect of speed, feed rate and tray angle on the dehulling, cleaning and grain loss from an acha (Digitaria exilis) dehulling machine","authors":"I. Itodo, P. Yusuf, T. K. Kaankuka","doi":"10.5897/jetr2022.0734","DOIUrl":"https://doi.org/10.5897/jetr2022.0734","url":null,"abstract":"This study determined the effect of cylinder speed, feed rate and tray angle on the dehulling efficiency and the effect of fan speed, feed rate and tray angle on the cleaning efficiency and grain loss from an acha ( Digitaria exilis) dehulling machine in a 3 × 3 factorial experimental design in three replicates. The cylinder speeds were 1500, 2000 and 2500 rpm and the fan speeds were 160, 185 and 213 rpm. The feed rates were 20, 30 and 40 g min -1 and tray angles of 22.5°, 45°, and 67.5°. The results were analyzed using the analysis of variance at p ≤ 0.05 to determine if the speeds and tray angle inclinations had a significant effect on the dehulling efficiency, cleaning efficiency and grain loss at the various feed rates. The Duncan’s New Multiple Range Test was used to separate the means where there was significant difference. The feed rate had no significant effect on the dehulling and cleaning efficiencies and grain loss. The speeds and tray angles had a significant effect on the dehulling and cleaning efficiencies and grain loss. The dehulling efficiency was higher at higher tray angles. The cleaning efficiency was higher at the higher fan speeds and tray angles. The grain loss from the machine was higher at the higher fan speeds and lower at the higher tray angles.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90164912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-28DOI: 10.24018/ejeng.2023.8.3.3061
Xinqing Zhuang, Siqing Zhuang, Dongmei Su, Sheng Du, Yihua Liu
Real-time route planning is always a difficulty in maritime traffic. Route planning must take into account the complex meteorological environment. Route planning based on meteorological environment real-time update is the basis of route feasibility. Based on potential field theory, this paper proposes a TPS - Genetic algorithm for real-time route planning of sailing ships. On the basis of genetic algorithm, combined with the characteristics of route planning, the turning point sorting operation is added to improve the calculation efficiency, and further improve the real-time performance of route planning. Simulation experiments are established and compared with A* algorithm. The experimental results show that the potential field theory can accurately express the dynamic changes of Marine meteorology, and the path planned by TPS - Genetic algorithm is more suitable for real-time navigation environment. TPS - Genetic algorithm can be applied to ship navigation system, which can further adjust the potential energy base and plan routes according to the needs of shipping companies.
{"title":"TPS-Genetic Algorithm for Real-Time Sailing Route Planning based on Potential Field Theory","authors":"Xinqing Zhuang, Siqing Zhuang, Dongmei Su, Sheng Du, Yihua Liu","doi":"10.24018/ejeng.2023.8.3.3061","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.3.3061","url":null,"abstract":"Real-time route planning is always a difficulty in maritime traffic. Route planning must take into account the complex meteorological environment. Route planning based on meteorological environment real-time update is the basis of route feasibility. Based on potential field theory, this paper proposes a TPS - Genetic algorithm for real-time route planning of sailing ships. On the basis of genetic algorithm, combined with the characteristics of route planning, the turning point sorting operation is added to improve the calculation efficiency, and further improve the real-time performance of route planning. Simulation experiments are established and compared with A* algorithm. The experimental results show that the potential field theory can accurately express the dynamic changes of Marine meteorology, and the path planned by TPS - Genetic algorithm is more suitable for real-time navigation environment. TPS - Genetic algorithm can be applied to ship navigation system, which can further adjust the potential energy base and plan routes according to the needs of shipping companies.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"144 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91484024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-26DOI: 10.24018/ejeng.2023.8.3.3055
Selfina Pare, Tatik M. Tallulembang, Agustan Latif
Scholarship is a government program given to high school graduates to be able to continue their studies at the tertiary level. This is as stipulated in the Regent Regulation (PERBUP) No 25 of 2019 concerning "providing scholarships and educational assistance to students of Merauke Regency". In the scholarship acceptance selection activities in 2019, approximately 103 applicants were recorded, and 74 were successfully accepted. The process of selecting prospective scholarship recipients is currently being carried out, namely checking and comparing one by one with the applicant's data. Based on data in 2019, where there are applicants whose report card value data is incomplete but is accepted for a scholarship. This is considered to have an impact on the decision-making results of prospective scholarship recipients in subsequent years. In order to assist KESRA in selecting scholarship recipients, these obstacles can be overcome by using a decision support system. The design of this decision support system is carried out using the TOPSIS method, namely selecting the alternative that is the shortest distance from the positive ideal solution and the furthest distance from the negative ideal solution. The results obtained in this study are a system that can assist the People's Welfare in determining the selection of scholarship recipients based on the three predetermined criteria. Testing the accuracy of the system obtained is 67% and for testing the questionnaire to obtain a percentage of 66.67% which is in the "Agree" category.
{"title":"Decision Support System for Admission of Regional Government Scholarships in Merauke Regency Using the TOPSIS Method","authors":"Selfina Pare, Tatik M. Tallulembang, Agustan Latif","doi":"10.24018/ejeng.2023.8.3.3055","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.3.3055","url":null,"abstract":"Scholarship is a government program given to high school graduates to be able to continue their studies at the tertiary level. This is as stipulated in the Regent Regulation (PERBUP) No 25 of 2019 concerning \"providing scholarships and educational assistance to students of Merauke Regency\". In the scholarship acceptance selection activities in 2019, approximately 103 applicants were recorded, and 74 were successfully accepted. The process of selecting prospective scholarship recipients is currently being carried out, namely checking and comparing one by one with the applicant's data. Based on data in 2019, where there are applicants whose report card value data is incomplete but is accepted for a scholarship. This is considered to have an impact on the decision-making results of prospective scholarship recipients in subsequent years. In order to assist KESRA in selecting scholarship recipients, these obstacles can be overcome by using a decision support system. The design of this decision support system is carried out using the TOPSIS method, namely selecting the alternative that is the shortest distance from the positive ideal solution and the furthest distance from the negative ideal solution. The results obtained in this study are a system that can assist the People's Welfare in determining the selection of scholarship recipients based on the three predetermined criteria. Testing the accuracy of the system obtained is 67% and for testing the questionnaire to obtain a percentage of 66.67% which is in the \"Agree\" category.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82453012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-17DOI: 10.24018/ejeng.2023.8.3.3063
F. A. Samiul Islam
One of the most challenging and complicated issues in city management for most countries of the world is the traffic problem. It is a very common phenomenon in almost all the world’s cities. Due to high traffic congestion, a substantial portion of working hours have to be left on streets which indirectly has an adverse impact on the economy of a country. Moreover, it causes serious air pollution, and noise pollution thus worsening the overall environmental condition. An adequate and efficient transportation system is a prerequisite for the sustainable economic development of every country. The main purpose of this paper is to introduce a new roadway design and the name of the roadway design is “The Samiul Turn”. If a country implements “The Samiul Turn” roadway system on their roadway, it can eliminate the traffic congestion problem. The author of this paper is the designer of “The Samiul Turn” roadway system.
{"title":"“The Samiul Turn”: An Inventive Roadway Design Where No Vehicles Have to Stop Even for a Second and There is No Need for Traffic Control","authors":"F. A. Samiul Islam","doi":"10.24018/ejeng.2023.8.3.3063","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.3.3063","url":null,"abstract":"One of the most challenging and complicated issues in city management for most countries of the world is the traffic problem. It is a very common phenomenon in almost all the world’s cities. Due to high traffic congestion, a substantial portion of working hours have to be left on streets which indirectly has an adverse impact on the economy of a country. Moreover, it causes serious air pollution, and noise pollution thus worsening the overall environmental condition. An adequate and efficient transportation system is a prerequisite for the sustainable economic development of every country. The main purpose of this paper is to introduce a new roadway design and the name of the roadway design is “The Samiul Turn”. If a country implements “The Samiul Turn” roadway system on their roadway, it can eliminate the traffic congestion problem. The author of this paper is the designer of “The Samiul Turn” roadway system.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81277233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-16DOI: 10.24018/ejeng.2023.8.3.3015
A. Elmaryami, W. Muhammad
The modeling of an axisymmetric industrial quenched alloy steel SCM440 based on the finite element method (FEM) has been produced to investigate the impact of process history on material properties and metallurgical. Mathematical modeling of the 1-Dimensional element axisymmetric model has been adopted to determine the temperature history and consequently the hardness of the heat-treated steel bar at any node. The lowest hardness point (LHP) will be at the half-length at the center and the effect of radius on (LHP) is calculated. In this manuscript hardness (HRC) in specimen points was determined by the conversion of computed characteristic cooling time for phase transformation t8/5 which equal (t5 - t8) to hardness. The model can be employed as a guideline to design a cooling approach to achieve desired mechanical properties such as hardness, toughness, and microstructure. The developed mathematical model was converted into a computer program. The computer program can be used independently or incorporated into a temperature history software named (E-LHP-software) to continuously determine and display the temperature history of the heat-treated quenched steel bar and thereby calculate the lowest hardness point and the effect of the radius in LHP can be analyzed and studied. The developed program from the mathematical model (MM) has been verified and validated by comparing its hardness results with experimental work results. The comparison indicates the reliability of the proposed model.
{"title":"An Innovative E-LHP Software to Study the Effect of Radius on (LHP) During Transient Heat Transfer Quenched Alloy SCM440-Steel Bar","authors":"A. Elmaryami, W. Muhammad","doi":"10.24018/ejeng.2023.8.3.3015","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.3.3015","url":null,"abstract":"The modeling of an axisymmetric industrial quenched alloy steel SCM440 based on the finite element method (FEM) has been produced to investigate the impact of process history on material properties and metallurgical. Mathematical modeling of the 1-Dimensional element axisymmetric model has been adopted to determine the temperature history and consequently the hardness of the heat-treated steel bar at any node. The lowest hardness point (LHP) will be at the half-length at the center and the effect of radius on (LHP) is calculated. In this manuscript hardness (HRC) in specimen points was determined by the conversion of computed characteristic cooling time for phase transformation t8/5 which equal (t5 - t8) to hardness. The model can be employed as a guideline to design a cooling approach to achieve desired mechanical properties such as hardness, toughness, and microstructure. The developed mathematical model was converted into a computer program. The computer program can be used independently or incorporated into a temperature history software named (E-LHP-software) to continuously determine and display the temperature history of the heat-treated quenched steel bar and thereby calculate the lowest hardness point and the effect of the radius in LHP can be analyzed and studied. The developed program from the mathematical model (MM) has been verified and validated by comparing its hardness results with experimental work results. The comparison indicates the reliability of the proposed model.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73524388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-09DOI: 10.24018/ejeng.2023.8.3.3038
Ugochukwu C. Nnamdi, I. Asianuba
Wireless Power Transfer (WPT) can be described as the processing of transmitting electricity without the use of wires. It has been increasingly used in places where battery depletion and replacement are major issues. WPT Technology are being used in different sectors. They include wireless charging, Electric vehicles, consumer electronics, etc. The paper describes the various types of WPT technologies; Inductive Coupling, Magnetic Resonance and Radio Frequency (RF) technology. It also discusses the advantages and shortfalls of each type. An extensive survey of past works was discussed. Results from the research findings showed that distance and conversion efficiency were limiting factors in implementing wireless transfer technology.
{"title":"Wireless Power Transfer: A Review of Existing Technologies","authors":"Ugochukwu C. Nnamdi, I. Asianuba","doi":"10.24018/ejeng.2023.8.3.3038","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.3.3038","url":null,"abstract":"Wireless Power Transfer (WPT) can be described as the processing of transmitting electricity without the use of wires. It has been increasingly used in places where battery depletion and replacement are major issues. WPT Technology are being used in different sectors. They include wireless charging, Electric vehicles, consumer electronics, etc. The paper describes the various types of WPT technologies; Inductive Coupling, Magnetic Resonance and Radio Frequency (RF) technology. It also discusses the advantages and shortfalls of each type. An extensive survey of past works was discussed. Results from the research findings showed that distance and conversion efficiency were limiting factors in implementing wireless transfer technology.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88215078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}