Arabian Journal for Science and Engineering最新文献_第4页

Pseudo-Static Test of Buckling-Restrained Braces Using Friction Energy Consumption 利用摩擦能耗对屈曲约束支撑进行伪静态测试

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-08-31 DOI: 10.1007/s13369-024-09528-y

Yaxiong Liang, Xiaodong Li, Linghui Jiang

{"title":"Pseudo-Static Test of Buckling-Restrained Braces Using Friction Energy Consumption","authors":"Yaxiong Liang, Xiaodong Li, Linghui Jiang","doi":"10.1007/s13369-024-09528-y","DOIUrl":"https://doi.org/10.1007/s13369-024-09528-y","url":null,"abstract":"To achieve a controllable carrying and deformation capacity without needing post-earthquake replacement, this study introduces a novel design for buckling-restrained braces, leveraging friction energy dissipation. The braces comprise four integral components: an inner steel tube, a high-strength compression spring, a friction plate, and an outer steel tube. An axial cyclic loading test conducted on three distinct sets of specimens with varied components investigates the carrying capacity, deformation capacity, and energy dissipation capacity of the buckling-restrained braces. Furthermore, an analysis is performed to assess the influence of the high-strength compression spring and friction plate material on the overall performance of the buckling-restrained braces. The test results demonstrate that, in comparison with the traditional buckling restrained brace, the friction buckling restrained brace exhibits the following advantages: (1) The hysteresis curve of the friction dissipative buckling restrained brace exhibits superior coverage compared to that of the traditional buckling restrained brace; (2) the FBRB demonstrates enhanced load-carrying, deformation, and energy dissipation capabilities compared to the BRB; and (3) the FBRB exhibits a distinctive axial adjustment capacity due to the incorporation of spring members, which can extend the service life of the member. The findings indicate that this type of buckling-restrained brace exhibits an adjustable carrying and deformation capacity, a complete hysteretic curve, and no buckling of the core member under compression. The application of these braces proves effective in significantly reducing the cost of structural rehabilitation post-earthquake.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"24 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of a 0.2V 2.08nW 10-bit 1kS/s High Energy Efficiency SAR ADC with Dummy Capacitor Splitting Technique for Biomedical Applications 利用虚拟电容分流技术设计用于生物医学应用的 0.2V 2.08nW 10 位 1kS/s 高能效 SAR ADC

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-08-31 DOI: 10.1007/s13369-024-09459-8

Zahra Mehrabi Moghadam, Mohammad Reza Salehi, Ebrahim Abiri

{"title":"Design of a 0.2V 2.08nW 10-bit 1kS/s High Energy Efficiency SAR ADC with Dummy Capacitor Splitting Technique for Biomedical Applications","authors":"Zahra Mehrabi Moghadam, Mohammad Reza Salehi, Ebrahim Abiri","doi":"10.1007/s13369-024-09459-8","DOIUrl":"https://doi.org/10.1007/s13369-024-09459-8","url":null,"abstract":"This paper presents an ultra-low-voltage 10-bit successive approximation-register analog-to-digital converter (SAR ADC) based on the binary search algorithm for biomedical applications. An energy-efficient DAC switching scheme for a fully differential SAR ADC is proposed, which achieves a 99.8% reduction in DAC switching energy compared to conventional SAR ADC. In this design, by using a dummy capacitor split technique, an attempt has been made to reduce the capacitor of the most significant bit, resulting in a 92.87% reduction in the total number of capacitors compared to conventional design. In the proposed structure, the common-mode voltage of the comparator is approximately constant. The maximum voltage variation in the proposed switching scheme is Vref/2. Additionally, power consumption has been reduced by implementing the power gating technique in the control logic part. The proposed converter with a sampling frequency of 1 kS/s and a supply voltage of 0.2 V has been designed and simulated in TSMC 65nm CMOS technology. Both analytical calculations and simulation results confirm the effectiveness of the proposed switching scheme. Ultimately, the proposed scheme achieves a power consumption of 2.08 nW and a Figure of Merit (FoM) of 5.39 fJ/conversion-step. In comparison with the state-of-the-art, the proposed design has demonstrated excellent performance in achieving optimal power.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"25 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine Learning Applications for Predicting Faulting in Jointed Reinforced Concrete Pavement 机器学习在钢筋混凝土接缝路面断层预测中的应用

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-08-31 DOI: 10.1007/s13369-024-09495-4

Ali Alnaqbi, Ghazi G. Al-Khateeb, Waleed Zeiada, Eyad Nasr, Muamer Abuzwidah

{"title":"Machine Learning Applications for Predicting Faulting in Jointed Reinforced Concrete Pavement","authors":"Ali Alnaqbi, Ghazi G. Al-Khateeb, Waleed Zeiada, Eyad Nasr, Muamer Abuzwidah","doi":"10.1007/s13369-024-09495-4","DOIUrl":"https://doi.org/10.1007/s13369-024-09495-4","url":null,"abstract":"Faulting predictive models are crucial for maintaining the structural integrity and safety of rigid pavements, ensuring a smooth and durable driving surface. Accurate predictions allow for timely maintenance, reducing long-term costs and extending pavement lifespan. The objective of this study is to advance faulting prediction methodologies for jointed reinforced concrete pavement (JRCP) to bolster pavement longevity and maintenance strategies. Using data from 22 distinct sections under the long-term pavement performance (LTPP) program, encompassing a wide array of climatic scenarios, the research leverages six cutting-edge machine learning algorithms: regression tree (RT), support vector machine (SVM), ensembles, Gaussian process regression (GPR), artificial neural network (ANN), and kernel methods. The methodology includes a detailed statistical analysis and an evaluation of feature significance to dissect the multifaceted interactions among key determinants of pavement performance. The results underscore the efficacy of machine learning in elevating faulting prediction precision. Among the algorithms tested, boosted trees demonstrated the highest accuracy, with a root mean square error (RMSE) of 0.68, a mean squared error (MSE) of 0.46, and an R-squared value of 0.78. The feature importance analysis highlighted that L4 Thickness, pavement age, L3 Type, and initial IRI were the most influential factors in predicting faulting, with importance scores of 0.2266, 0.1862, 0.1638, and 0.1594, respectively. This study demonstrates the significant potential of machine learning models in accurately predicting faulting in JRCP, paving the way for more efficient pavement maintenance and management strategies that can effectively address and mitigate pavement distress.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"44 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of Kerf Width in WEDM of Sandwich Woven CFRP-An Ensemble Machine Learning Based Approach 优化夹层编织 CFRP 线切割加工中的切口宽度--一种基于机器学习的集合方法

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-08-31 DOI: 10.1007/s13369-024-09526-0

Subhankar Saha, T. Arunkumar, Kishore Debnath, Satish Chaurasia

{"title":"Optimization of Kerf Width in WEDM of Sandwich Woven CFRP-An Ensemble Machine Learning Based Approach","authors":"Subhankar Saha, T. Arunkumar, Kishore Debnath, Satish Chaurasia","doi":"10.1007/s13369-024-09526-0","DOIUrl":"https://doi.org/10.1007/s13369-024-09526-0","url":null,"abstract":"Machining CFRP with WEDM is extremely challenging and produces kerf of poor quality. Therefore, the present research venture is intended to improve the kerf quality produced in WEDM of woven CFRP through a machine learning-based metaheuristic algorithm. Two ensemble-based machine learning algorithms i.e., the Random Forest (RF), and Adaptive Boosting algorithm (AdaBoost) have been used to model the kerf width. The performance of RF is found to be superior to AdaBoost in terms of generalization prowess as the box plot corresponding to the predicted KW by RF closely resembles the box plot of experimental KW whereas the box plot corresponding to the predicted KW by AdaBoost has a varying distribution with the box-plot of experimental KW. Furthermore, the kerf width optimization has been conducted using a broad range of optimization techniques from nature-inspired to mathematically driven approaches such as the Moth flame optimizer (MFO), Grey Wolf optimizer, Chimp optimization algorithm, and sine cosine algorithm in an attempt to compare the computational performance of the algorithms. It has been revealed that MFO discovered the minimum KW (global optimum solution) and exhibited rapid convergence as compared to its counterparts. The optimal results are Ton = 26 microsecs, Toff = 50 microsecs, I = 7A, and V = 70 V. Additionally, the proposed optimization's durability has been examined using the traditional desirability approach. The percentage improvement in KW through the proposed optimization as compared to the desirability approach is 5.6%. Lastly, FESEM images are provided for varying process parametric conditions.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"85 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing Sustainable Construction Practices: Utilizing Heat-Treated Recycled Concrete Fines for Improving Slag-Based Geopolymer Materials 加强可持续建筑实践：利用热处理再生混凝土细粉改进矿渣基土工聚合物材料

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-08-29 DOI: 10.1007/s13369-024-09477-6

Amirouche Berkouche, Ahmed Abderraouf Belkadi, Abdelaziz Hasnaoui, Salima Aggoun, Tarek Chiker, Abdelhak Khechai, Annelise Cousture, Tahar Tayebi

{"title":"Enhancing Sustainable Construction Practices: Utilizing Heat-Treated Recycled Concrete Fines for Improving Slag-Based Geopolymer Materials","authors":"Amirouche Berkouche, Ahmed Abderraouf Belkadi, Abdelaziz Hasnaoui, Salima Aggoun, Tarek Chiker, Abdelhak Khechai, Annelise Cousture, Tahar Tayebi","doi":"10.1007/s13369-024-09477-6","DOIUrl":"https://doi.org/10.1007/s13369-024-09477-6","url":null,"abstract":"This study explores the untapped potential of utilizing heat-treated recycled fines (HT-RFs) from mortar as a sustainable and eco-friendly alternative for slag-based geopolymer materials in construction. The RFs undergo a novel heat treatment process at 650 °C to significantly enhance their reactivity. Geopolymer mixtures incorporating both heat-treated and untreated RFs at various replacement ratios (0%, 10%, 20%, and 30%) are meticulously evaluated for their porosity, flexural strength, and compressive strength after 28 days of curing. The load-midspan displacement and failure behavior are analyzed using digital image correlation techniques. The microstructure of the mortar samples is comprehensively analyzed using state-of-the-art techniques including thermogravimetry, scanning electron microscopy, and X-ray diffraction. The results showed that the incorporation of 30% heat-treated recycled fines into slag based geopolymer increased compressive and flexural strengths by 30.67% and 27.31%, respectively, while substantially reducing the porosity by 16%, compared to the control geopolymer mixture. This study promotes sustainability in construction with eco-friendly materials by minimizing waste.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"158 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determining the Effects of Operational Parameters and Geotechnical Conditions on the Behavior of Soil–Cement Columns Using a Small-Scale Physical Model in Sandy Soil 利用砂土中的小型物理模型确定操作参数和岩土条件对土水泥柱行为的影响

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-08-29 DOI: 10.1007/s13369-024-09511-7

Mohsen Sabermahani, Amir Hajisalimi

{"title":"Determining the Effects of Operational Parameters and Geotechnical Conditions on the Behavior of Soil–Cement Columns Using a Small-Scale Physical Model in Sandy Soil","authors":"Mohsen Sabermahani, Amir Hajisalimi","doi":"10.1007/s13369-024-09511-7","DOIUrl":"https://doi.org/10.1007/s13369-024-09511-7","url":null,"abstract":"The behavior of jet grouting columns is influenced by several operational and geotechnical parameters, but relatively little attention has been paid to the significance of the initial soil moisture content on the columns. In the current study, a small-scale jet grouting device has been used to create 47 small-scale columns in dry and wet (20% moisture content) sand to investigate the effects of the soil moisture content on the diameter, uniaxial compressive strength (UCS), and the treatment efficiency. The columns were constructed using different injection times, rotational speeds of 10 and 25 rpm, and soil relative densities of 5% and 95% to assess the comparative influence of the moisture content on the effectiveness of other parameters. The results demonstrated that the initial soil moisture had the most significant effect on the column diameter. In sand with a 20% moisture content, the column diameter increased an average of 63% and 87% in loose and dense sand, respectively, compared to dry sand. However, an increase in the injection time in wet sand caused a significant decrease in the treatment efficiency. A 60% decrease in the rotational speed from 25 to 10 rpm had a greater effect on increasing the diameter in dry sand than doubling the injection time. The relative density had a much smaller effect on the column diameter created in wet sand than in dry sand. The high cement-to-soil ratio of the columns increased the UCS of the core samples and eliminated the effect of the aforementioned parameters on the UCS.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"25 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effect of Aging Heat Treatments on Room and High-Temperature Wear Performance of the Inconel 718™ Manufactured by Laser Powder Bed Fusion 老化热处理对激光粉末床熔融技术制造的 Inconel 718™ 的室温和高温磨损性能的影响

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-08-29 DOI: 10.1007/s13369-024-09523-3

Akay Nevcanoğlu, Bülent Aydemir, H.Özkan Gülsoy

{"title":"The Effect of Aging Heat Treatments on Room and High-Temperature Wear Performance of the Inconel 718™ Manufactured by Laser Powder Bed Fusion","authors":"Akay Nevcanoğlu, Bülent Aydemir, H.Özkan Gülsoy","doi":"10.1007/s13369-024-09523-3","DOIUrl":"https://doi.org/10.1007/s13369-024-09523-3","url":null,"abstract":"This paper presents the results of a detailed experimental investigation into the wear properties of laser powder bed fusion samples of Inconel 718 after various aging conditions. There is a gap in the literature on the high-temperature wear properties of Inconel 718. The aging process determines the service life and working conditions of the alloy. This study aims to reveal the effects of various aging heat treatments on the room and high-temperature wear properties of Inconel 718. The aging conditions were selected as non-aged, solution aged (SA), conventionally aged (CA), overaged (OA) and furnace-controlled aged (FCA). Cylindrical samples were machined for 500 m, using a Si3N4 ball at room temperature and 400 °C. The surfaces of the samples were smoothed by turning. FCA was performed in a controlled atmosphere furnace. The heating and cooling rates of FCA were 10 min/°C. Ar was selected as the shielding gas. The rapid cooling stages of SA, CA and OA were performed by quenching in water. FCA refined the microstructure and enhanced the wear resistance. SA resulted in a rigid microstructure, abrasive wear was dominant. EA led to an increase in the Laves phase ratio, which was identified by X-ray diffraction analyses. Optical microscope and scanning electron microscope (SEM) images of the microstructures and worn surfaces were correlated with the microhardness scores to accurately define the wear properties. The precipitations were identified by energy-dispersive X-ray spectrum application that is combined to SEM. The experimental evidence from this work clarified the predominant wear mechanisms due to microstructure and phase evolution. This work provides remarkable information on determining the appropriate aging condition for various applications of Inconel 718 alloy.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"62 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Navigating Process Drift: The Power of CUSUM in Monitoring Air Quality Processes and Maintenance Operations 导航过程漂移：CUSUM 在监测空气质量过程和维护操作中的作用

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-08-29 DOI: 10.1007/s13369-024-09453-0

Muhammad Riaz, Huda Alshammari, Nasir Abbas, Tahir Mahmood

{"title":"Navigating Process Drift: The Power of CUSUM in Monitoring Air Quality Processes and Maintenance Operations","authors":"Muhammad Riaz, Huda Alshammari, Nasir Abbas, Tahir Mahmood","doi":"10.1007/s13369-024-09453-0","DOIUrl":"https://doi.org/10.1007/s13369-024-09453-0","url":null,"abstract":"Nowadays, manufacturers face intense pressure to maintain a high standard of quality. Due to the damage to machine components, manufacturing processes degrade over time, resulting in substandard products. Generally, statistical process control tools such as control charts aid in identifying patterns and trends indicative of process changes. This investigation delves into the effectiveness of cumulative sum control charts using the sample mean and median as plotting statistics. Run-length measurements assess performance after the charts experience linear and quadratic drifts in non-normal setups under zero- and steady-state conditions. The findings reveal that Cumulative Sum (CUSUM) charts outperform zero-state monitoring compared to steady-state monitoring. Notably, the CUSUM chart for the mean is suitable for normal and Gamma distributions, exhibiting a greater ability for drift detection under biased and unbiased Average Run Lengths. This study offers valuable insights into enhancing manufacturing quality through effectively implementing and comparing Shewhart, Exponentially Weighted Moving Average, and CUSUM charts. By evaluating their performance under various conditions and comparing them with other control chart methods, this research provides valuable guidance for industries seeking to improve process monitoring and product quality. It is essential to acknowledge that the findings are based on specific experimental conditions and may not fully capture the complexity of real-world manufacturing environments. For practical purposes, the suggested charts are also applied to real-world case studies, including air quality (focusing on five metal oxide chemistry sensors: carbon monoxide concentration, non-metonic hydrocarbons, benzene, total nitrogen oxides, and nitrogen dioxide) and maintenance data (including air temperature, rotating speed, and equipment failure).","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"25 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermomechanical Modeling and Numerical Simulation of Orthogonal Turning of 42CrMo4 Steel: Case of Workpiece/Tool Studies 42CrMo4 钢正交车削的热力学建模和数值模拟：工件/刀具研究案例

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-08-29 DOI: 10.1007/s13369-024-09394-8

Boujemaa Hadj Brahim, Lotfi Dahmani, Mohamed Nasser, Slimen Attyaoui, Aleksandr A. Vorob’ev

{"title":"Thermomechanical Modeling and Numerical Simulation of Orthogonal Turning of 42CrMo4 Steel: Case of Workpiece/Tool Studies","authors":"Boujemaa Hadj Brahim, Lotfi Dahmani, Mohamed Nasser, Slimen Attyaoui, Aleksandr A. Vorob’ev","doi":"10.1007/s13369-024-09394-8","DOIUrl":"https://doi.org/10.1007/s13369-024-09394-8","url":null,"abstract":"Machining of mechanical parts using material removal is one of the most used manufacturing techniques in the industry. This type of machining is a highly coupled thermomechanical process. During machining, the tool/chip interface is the site of complex interactions between mechanical, thermal and metallurgical phenomena. The experimental study remains difficult and expensive because of the multitude of parameters involved in the cutting phenomenon, which makes the use of finite element (FE) simulations an essential approach. In this work, a thermomechanical 2D model of the orthogonal cutting process of 42CrMo4 steel was developed using Abaqus/Explicit. The objective of this work is to study the influence of cutting parameters (feed f and cutting speed Vc) on cutting forces, stress distribution and temperature. A particular interest is given to the temperature and constraints of the cutting tool compared to similar work, particularly for 42CrMo4 steel. Knowing these two answers makes it possible to calculate the wear and thus the service life of the cutting tool. The results show that cutting speed and feed rate have a significant influence on cutting force, stress and temperature in the cutting zone. A comparison of the simulated and experimental results was carried out in terms of cutting force, to verify the accuracy and reliability of the developed simulation model. It was found that the average error on the cutting force is 8.11%, which proves the relevance and reliability of the proposed numerical model.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"35 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Analysis of the Influence of Trapezoidal Geometry in Phase Change Material Containers on Temperature Distribution in Concentrated Photovoltaic Panel Cooling 相变材料容器中的梯形几何形状对聚光光伏板冷却过程中温度分布影响的数值分析

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-08-28 DOI: 10.1007/s13369-024-09527-z

Korhan Ökten, Mehmet Balta, Burak Kurşun

{"title":"Numerical Analysis of the Influence of Trapezoidal Geometry in Phase Change Material Containers on Temperature Distribution in Concentrated Photovoltaic Panel Cooling","authors":"Korhan Ökten, Mehmet Balta, Burak Kurşun","doi":"10.1007/s13369-024-09527-z","DOIUrl":"https://doi.org/10.1007/s13369-024-09527-z","url":null,"abstract":"In concentrated photovoltaic (PV) panels, the amount of waste heat generated increases due to the higher incident radiation on the panel surface, leading to a decrease in PV panel efficiency. Therefore, PV-PCM (Phase Change Material) integration is a widely used passive method to reduce and stabilize PV panel temperature. However, particularly in angled PV panels, the movement of the PCM within its container can cause uneven temperature distributions on the PV panel surface. To address this issue, this study employs a trapezoidal geometry to increase the amount of PCM and the surface area exposed to the environment in the regions where the molten PCM accumulates. Furthermore, the effects of PCM area and heat transfer coefficient to the environment on the temperature distribution of the PV panel for different trapezoidal geometries (different tilt angles and the ratio of side surfaces) were investigated. A numerical model was developed for these investigations, and this model was validated with experimental work found in the literature. The results showed that the surface temperature decreased by 5–21 K and the surface temperature uniformity improved between 10 and 44% depending on the parameter change with the use of trapezoidal geometry.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"62 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0