International Journal of Mechanical Engineering Technologies and Applications最新文献

OPTIMAL SETTINGS OF A MELON SEED SHELLER USING STATISTICAL DESIGN OF EXPERIMENTS 利用统计实验设计优化瓜籽脱壳机的设置

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2024-01-31 DOI: 10.21776/mechta.2024.005.01.5

Tsapi Kevin Tchoupou, Samuel Mbelle Bisong, B. S. Fotsing

{"title":"OPTIMAL SETTINGS OF A MELON SEED SHELLER USING STATISTICAL DESIGN OF EXPERIMENTS","authors":"Tsapi Kevin Tchoupou, Samuel Mbelle Bisong, B. S. Fotsing","doi":"10.21776/mechta.2024.005.01.5","DOIUrl":"https://doi.org/10.21776/mechta.2024.005.01.5","url":null,"abstract":"A community melon seed shelling machine, used by farmers and households to reduce the constraints associated with the manual processing, was found to produce larger quantities of unshelled seeds. In particular, the optimum seed moisture content and motor speed were unknown. The objective of this study was to determine the appropriate motor speed and moisture content of melon seeds to improve the effectiveness of seed dehulling. A full factorial design approach was used to develop a regression model and investigate the effect of moisture content and machine speed on dehulling efficiency. The results of the experiments showed that both motor speed and seed moisture content had a significant effect on seed shelling efficiency. The motor speed had the greatest effect (0.21567), followed by the moisture content (0.19732). The modelled optimization conditions were as follows: seed moisture content at 26%, motor speed at 2100 rpm. The regression model showed a coefficient of determination value of 0.999, indicating that 99.90% of the variation in response could be explained by the model; only 0.1% of the variation in response could not be explained by the model and was random. Three experimental validation runs were carried out under optimal conditions, and the highest average yield was 86.2%, corresponding to a significant improvement of 26% on the initial yield of 60 %. Other experimental design methods should be investigated to improve the results for appropriate parameter settings of the production process.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"56 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140478605","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}

引用次数: 0

ANALYSING THE PERFORMANCE OF A MANUFACTURING FIRM USING HIERARCHICAL APPROACH 用分层方法分析制造企业的绩效

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2024-01-31 DOI: 10.21776/mechta.2024.005.01.12

Ayswer A S, Ramasamy N, D. M., S. N

{"title":"ANALYSING THE PERFORMANCE OF A MANUFACTURING FIRM USING HIERARCHICAL APPROACH","authors":"Ayswer A S, Ramasamy N, D. M., S. N","doi":"10.21776/mechta.2024.005.01.12","DOIUrl":"https://doi.org/10.21776/mechta.2024.005.01.12","url":null,"abstract":"There is a growing demand for manufacturers from within and outside the company to embrace stakeholder-satisfying production techniques. As a result, companies undertake a wide range of assessments as part of their strategic planning and performance monitoring processes. The Strengths, Weaknesses, Opportunities, and Threats (SWOT) analysis is used in strategic planning that helps businesses evaluate their current standing. In addition, through the Analytic Hierarchy Process (AHP), a pairwise comparison may be made between elements or criteria to prioritise them, making the SWOT analysis and multicriteria decision making method more effective. The purpose of the combined approach is to raise the effectiveness of strategic planning inside a business. This paper does a SWOT analysis of a small Kerala manufacturing company, outlining its strengths, weaknesses, opportunities, and threats. First, the company's strengths, weaknesses, opportunities, and threats (SWOT) are determined via an internal poll. Then, the AHP (analytic hierarchy process) compares alternatives by contrasting them head-to-head. The results of the company-wide poll of experts landed on seventeen distinct elements. With this information, the manufacturing firm can decide how best to boost its operations.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"402 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140471018","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}

引用次数: 0

ADVANCED TURBINE WORKING: IMPACT OF WINGLET ON VERTICAL WIND TURBINE DARRIEUS TIPE H 先进的涡轮机工作：小翼对垂直风力涡轮机的影响 Darrieus Tipe H

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2024-01-31 DOI: 10.21776/mechta.2024.005.01.8

Ahmad Ihwan Amir, Rudy Soenoko, Widya Wijayanti, David Setiadhi

引用次数: 0

CARDIAC BIOMETRICS AND PERCEIVED WORKLOAD REGRESSION ANALYSIS USING RANDOM FOREST REGRESSOR IN COGNITIVE MANUFACTURING TASKS 在认知制造任务中使用随机森林回归器进行心脏生物统计学和感知工作量回归分析

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2024-01-31 DOI: 10.21776/mechta.2024.005.01.11

Afifah Harmayanti, I. Tama, F. Gapsari, Zuardin Akbar, Hans Juliano

{"title":"CARDIAC BIOMETRICS AND PERCEIVED WORKLOAD REGRESSION ANALYSIS USING RANDOM FOREST REGRESSOR IN COGNITIVE MANUFACTURING TASKS","authors":"Afifah Harmayanti, I. Tama, F. Gapsari, Zuardin Akbar, Hans Juliano","doi":"10.21776/mechta.2024.005.01.11","DOIUrl":"https://doi.org/10.21776/mechta.2024.005.01.11","url":null,"abstract":"Workload is crucial in managing and maintaining good performance of human resources and allocations. In an advanced manufacturing industry, human job functions had shifted to cognitive tasks. Thus, cognitive workload evaluation should be used to monitor worker’s workload in optimal condition. Most common tool of cognitive workload tools are perceived measurement, like NASA – TLX questionnaire. Despite of its sensitivity to capture workload felt by the workers, this subjective measurement was prone to bias. Objective measurement utilizing biometrics data of the human body during working state was useful to eliminate bias. Cardiac biometrics were one of the many that were closely related to mental activity changes. The objective of this study was to understand the relationship of cardiac biometrics to perceived workload as an indicator of cognitive workload analysis. The study utilized four biometrics, heart rate, HRV low frequency power, total frequency power and ratio of low and high frequency power, were used to analyzed a one hour long cognitive based study case. The study case was designed in a manufacturing planning context referring to manufacturing aptitude tests, to induce cognition process on 30 participants. The biometrics and NASA – TLX score result of all the participants, were then calculated as effect size standardization before input into random forest regressor model to analyze relationship between cardiac biometrics and perceived workload. The result found a moderate relationship between the two (r2 = 0.576). Features importance also showed the most impactful feature to the model is the effect size of frequency power ratio. However, it is recommended to always consider evaluating multiple cardiac biometrics in workload analysis to ensure good model performance.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"5 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140477155","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}

引用次数: 0

APPLICATION OF FRICTION WELDING FOR PUMP DESIGN AND MANUFACTURING: A COMPREHENSIVE REVIEW 摩擦焊接在泵设计和制造中的应用：综述

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2024-01-31 DOI: 10.21776/mechta.2024.005.01.4

Muhammad Alfath Ziaul Haq, Agung Widodo, Howard Saputra

{"title":"APPLICATION OF FRICTION WELDING FOR PUMP DESIGN AND MANUFACTURING: A COMPREHENSIVE REVIEW","authors":"Muhammad Alfath Ziaul Haq, Agung Widodo, Howard Saputra","doi":"10.21776/mechta.2024.005.01.4","DOIUrl":"https://doi.org/10.21776/mechta.2024.005.01.4","url":null,"abstract":"The discussion regarding the balance between economical and performance for the pump design and manufacturing has been increasing in recent years. Of many intelligent innovations, the use of less costly materials for pump shaft is an interesting solution for the pump design. This solution can also be achieved by selecting less costly materials made from metal. Then, the less costly metal connected to electrical motor is joined with a more costly metal connected to the pump. Since both metals can be difference ones, an advance welding process to join both metals is then required. The friction welding process is expected to fulfill this requirement. In the friction welding, heat is generated during friction between these two dissimilar metals. The generated heat should achieve particular temperatures so that the two dissimilar metals can be joined. There are three types of friction welding, e.g. the stir friction welding, the linear friction welding and the continuous drive friction welding, which can be selected to join these two dissimilar metals. This paper is based on the authors’ experience and literature review to discuss the application of friction welding for the pump design and manufacturing.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"159 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140477315","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}

引用次数: 0

ANALYSIS OF BRAKING SYSTEM ON ENERGY SAVING CARS "SAKERA", MECHANICAL ENGINEERING WORK, UM SURABAYA 节能汽车 "SAKERA "制动系统分析，机械工程，泗水大学

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2024-01-31 DOI: 10.21776/mechta.2024.005.01.1

Saifullo Saifullo, Moh Arif Batutah, Anastas Rizaly, Ponidi Ponidi, Hadi Kusnanto, Ilyas Sofana

{"title":"ANALYSIS OF BRAKING SYSTEM ON ENERGY SAVING CARS \"SAKERA\", MECHANICAL ENGINEERING WORK, UM SURABAYA","authors":"Saifullo Saifullo, Moh Arif Batutah, Anastas Rizaly, Ponidi Ponidi, Hadi Kusnanto, Ilyas Sofana","doi":"10.21776/mechta.2024.005.01.1","DOIUrl":"https://doi.org/10.21776/mechta.2024.005.01.1","url":null,"abstract":"A braking system in a vehicle has a very important role in maintaining the safety of drivers and passengers, and preventing accidents. The brake system functions to reduce speed (slow down) and stop the vehicle. A good braking system provides safety and comfort for the drivers. Therefore, it is necessary to design the right braking system for “Sakera” car. In this study, an analysis and calculation of the braking system was carried out to determine the required braking force at a speed of 50 km/hour and other speeds in a distance of 15 m. The data taken in this study was the specification of the braking system used in the Sakera car. The braking system analysis was carried out on flat roads with varying speeds, namely 30 km/h, 35 km/h, 40 km/h, 45 km/h, and 50 km/h with a distance of 15 m for braking. The conclusions of the analysis were obtained, namely the greater the speed of Sakera's car, the greater the braking force to stop the car, the hydraulic pressure on the hose, and the force of the driver's feet, as well as the braking force needed on road conditions with a slope angle of 20º, which is 839.362 N.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"62 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140478585","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}

引用次数: 0

OPTIMIZATION OF SHELL AND TUBE HEAT EXCHANGER DESIGN WITH INCLINED BAFFLES 带倾斜挡板的管壳式换热器的优化设计

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2024-01-31 DOI: 10.21776/mechta.2024.005.01.7

Aulia Rahman, W. Winarto, Eko Siswanto

引用次数: 0

THE IMPACT OF CHAOTIC FLUX REFLECTION FIELD ON HYDROGEN EVOLUTION REACTION OF WATER ELECTROLYSIS 混沌通量反射场对电解水氢进化反应的影响

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2024-01-31 DOI: 10.21776/mechta.2024.005.01.2

Willy Satrio Nugroho, Rehab Ragay Esiliy, Purnami Purnami, Y. Sofi’i

{"title":"THE IMPACT OF CHAOTIC FLUX REFLECTION FIELD ON HYDROGEN EVOLUTION REACTION OF WATER ELECTROLYSIS","authors":"Willy Satrio Nugroho, Rehab Ragay Esiliy, Purnami Purnami, Y. Sofi’i","doi":"10.21776/mechta.2024.005.01.2","DOIUrl":"https://doi.org/10.21776/mechta.2024.005.01.2","url":null,"abstract":"Water electrolysis promises the capability to produce green hydrogen in the future. The efficiency and hydrogen evolution reaction rate (HER) of water electrolysis can be improved through magnetic field assisted electrolysis. External magnetic field exposure improves hydrogen production without requiring complex catalyst synthesis technique. The purpose of this study is to introduce chaos into a magnetic field assisted electrolysis system which disturbs the water molecules stability. The chaos effect was triggered by irregular flux reflection technique. The flux reflection was generated using diamagnetic tourmaline stones which sticked all over the electrolyzer wall. Consequently, the rotational speed of DMF does not reduce the effectiveness of chaotic flux. As a result, the hydrogen bond of the water molecules is destabilized irregularly. In conjuction with that, the bonds are unable to be reformed which make the water molecules continuously in movement. The critical effect of chaotic flux is the shear force that experienced by water molecules. The paramagnetic OH- ion movement is also slowed down so that H+ ion and electrons interaction were occurred in less restrictive manner. Hence, the chaotic magnetic field able to improve HER. The chaotic flux reflection improves hydrogen production in magnetic field assisted water electrolysis through water properties and ion transfer mechanism modification.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"188 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140475267","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}

引用次数: 0

INTEGRATION OF TAGUCHI AND PROMETHEE FOR CNC MILLING MACHINING PARAMETER OPTIMIZATION ON AA6061 针对 Aa6061 数控铣削加工参数优化的 taguchi 和 promethee 整合研究

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2024-01-31 DOI: 10.21776/mechta.2024.005.01.10

Muhammad Alif Ihsan, Y. Sumantri, Y. Irawan

{"title":"INTEGRATION OF TAGUCHI AND PROMETHEE FOR CNC MILLING MACHINING PARAMETER OPTIMIZATION ON AA6061","authors":"Muhammad Alif Ihsan, Y. Sumantri, Y. Irawan","doi":"10.21776/mechta.2024.005.01.10","DOIUrl":"https://doi.org/10.21776/mechta.2024.005.01.10","url":null,"abstract":"In the manufacturing industry, machining has developed quite rapidly from the use of conventional machines to unconventional machines. Unconventional machines that are often used today are optimize computer numerically controlled (CNC), the use of CNC in the manufacturing industry provides many benefits in product quality and productivity. One of them is CNC milling, this type is one of the main machines on the production floor. Machining optimization becomes the main goal to achieve the ideal response in order to produce products with good and consistent quality and productivity. Surface quality leads to surface roughness, while productivity leads to material removal rate. This study aims to optimize CNC milling machining parameters on AA6061 with Taguchi experimental design and preference ranking organization method for enrichment evaluation (PROMETHEE) method. Machining was controlled using wet machining conditions to maintain temperature during machining. Experiments were conducted nine times with three factors and levels. These factors included spindle speed, feed rate, and depth of cut. The result of this research is the ideal value of the combination of surface roughness and material burning rate which is 0.565 (experiment 3). This best experiment is influenced by spindle speed 2600 rpm, feed rate 65 mm/min, and depth of cut 2.5 mm. Feed rate has the largest contribution in influencing the response which is 43.23%, followed by depth of cut 25.24%, and spindle speed 15.91%.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"93 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140471634","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}

引用次数: 0

RPM MEASUREMENT COMPARISON USING A THERMOMETER AND LM393 MICROCONTROLLER 使用温度计和 lm393 微控制器进行转速测量比较

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2024-01-31 DOI: 10.21776/mechta.2024.005.01.6

Rizki Aulia Nanda, K. Karyadi, Roban Roban, F. Dewadi

{"title":"RPM MEASUREMENT COMPARISON USING A THERMOMETER AND LM393 MICROCONTROLLER","authors":"Rizki Aulia Nanda, K. Karyadi, Roban Roban, F. Dewadi","doi":"10.21776/mechta.2024.005.01.6","DOIUrl":"https://doi.org/10.21776/mechta.2024.005.01.6","url":null,"abstract":"RPM measurement is a crucial measurement tool for assessing a machine's rotation quality and ensuring that it meets the DC motor manufacturer's specifications. The quality of rotation of electric motors and combustion motors can both be observed through RPM measurements. The precision with which the LM393 sensor measures the rotation of a DC motor engine is the problem formulation in this study. Thus, the purpose of this study is to evaluate the rotation measurement accuracy of the LM393 Microcontroller sensor and compare it to a traditional tachometer. In order to conduct rotational variations on the DC motor, the following voltages will be applied: 0.93V, 2.83V, 4.25V, 7.05V, and 9.07V. Next, a tachometer and an LM393 microcontroller are used to measure the DC motor rotation. The gathered data will be made available for verification. Based on the measurement results, the corresponding data differences are -5.560 RPM, -1.577 RPM, -2.182 RPM, -3 RPM, and 0.334 RPM. Therefore, measurement validation was done based on the disparity in readings, yielding results of 0.252%, -1.45%, 0.12%, 0.038%, and 0.0725%. Based on validation results showing a presentation of no more than 10%, the LM393 measuring tool for DC motor RPM measurement is deemed valid and suitable for use.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"147 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140479126","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}

引用次数: 0