International Journal of Mechanical Engineering Technologies and Applications最新文献_第3页

REFERENCE OVERVIEW ON DESIGN AND SIMULATION OF GREEN SUPPLY CHAIN MANAGEMENT 绿色供应链管理设计与仿真参考综述

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-06-30 DOI: 10.21776/mechta.2023.004.02.7

Muhammad Alif Ihsan, V. Risonarta

引用次数: 0

MECHANICAL ANISOTROPY OF COLD-ROLLED ST-37 STEEL PLATE UNDER HIGH STRAIN RATES LOADINGS 冷轧st-37钢板在高应变率载荷下的力学各向异性

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-06-30 DOI: 10.21776/mechta.2023.004.02.9

Rilis Eka Perkasa, L. Gunawan, S. Santosa, A. Afdhal

{"title":"MECHANICAL ANISOTROPY OF COLD-ROLLED ST-37 STEEL PLATE UNDER HIGH STRAIN RATES LOADINGS","authors":"Rilis Eka Perkasa, L. Gunawan, S. Santosa, A. Afdhal","doi":"10.21776/mechta.2023.004.02.9","DOIUrl":"https://doi.org/10.21776/mechta.2023.004.02.9","url":null,"abstract":"Cold rolling process in metal could increase its strength and hardness, but also induces mechanical anisotropy. This is caused by unresolved plastic strain and microstructural changes caused by plastic deformation exerted by pair of rolls at a relatively low temperature. This research aims to provide understandings on anisotropic and strain rate sensitive behaviour of St-37 mild steel. The microstructure of rolled and unrolled St-37 plate were observed in 3 directions relative to the rolling direction. The cylindrical specimens were then prepared from rolled plate with 33.3% reduction in the orientation of 0o, 45o, and 90o relative to the rolling direction. Specimens were also prepared from unrolled plate as comparison in the same directions. These specimens were then tested in compression loading, first in quasi-static condition, and then by using Split-Hopkinson Pressure Bar (SHPB) at the strain rate of 1200 s-1. The experimental results in the form of stress-strain curves are used to obtain the parameters of Simplified Johnson-Cook viscoplastic model. The anisotropy of yield strength in rolled specimens could be seen on both quasi-static and high strain rate condition, where the highest strength found on the specimens perpendicular to the rolling direction. In addition, the effect of cold rolling to the strain rate sensitivity of the material were also captured successfully in this study, where specimens from rolled plate show less strain rate sensitivity compared to the unrolled specimens.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132964056","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

THE EFFECT OF ELECTRODE COATING FROM BISPHENOL-A-POLYCARBONATE CD-R WASTE FOR HYDROGEN PRODUCTION 双酚-聚碳酸酯cd-r废电极包覆对制氢的影响

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-01-31 DOI: 10.21776/mechta.2023.004.01.2

Abdul M. Sulaiman, Sifa'ul Mas'ud, Ahmad Najih Daroini, Purnami Purnami

{"title":"THE EFFECT OF ELECTRODE COATING FROM BISPHENOL-A-POLYCARBONATE CD-R WASTE FOR HYDROGEN PRODUCTION","authors":"Abdul M. Sulaiman, Sifa'ul Mas'ud, Ahmad Najih Daroini, Purnami Purnami","doi":"10.21776/mechta.2023.004.01.2","DOIUrl":"https://doi.org/10.21776/mechta.2023.004.01.2","url":null,"abstract":"Water electrolysis is a method that utilizes direct electric current to decompose water into O2 and H2. The productivity of hydrogen produced in the electrolysis of water is low. One of the main reasons for the low electrolysis efficiency of water is the resistance of the electrode material. The electrode that is often used in the electrolysis of water is a graphite electrode. The coating on graphite electrodes can be a solution to minimize material degradation at the electrodes. With the condition that the coating material is able to slow down the damage to graphite electrodes and is a good electrical conductor. In this study, we used polycarbonate material as a material for coating the electrodes. The polycarbonate material that will be used is obtained from electrical waste, namely CD-R. The polycarbonate was separated mechanically and then ground to a powder with a size of 400 m. Polycarbonate powder will be coated on the cathode surface by the thermal coating method. Polycarbonate contains Bisphenol A compound which has an aromatic ring. The presence of a magnetic field caused by the delocalization of electrons in aromatic compounds will affect the hydrogen bonding in water. The positively charged surface charge of Bisphenol-A-Polycarbonate is able to reduce the acidity of the solution and accelerate the decomposition reactions of H2 and O2 by the water electrolysis method. Bisphenol-A-Polycarbonate coating is a good inhibitor for graphite electrodes. Coated graphite electrodes have a lower corrosion rate than pure or uncoated graphite electrodes. The layer inhibits the degradation of the material caused by electrochemical events during the water electrolysis process. Bisphenol-A-Polycarbonate (BPA) layer, which acts as an inhibitor and a catalyst simultaneously during the water electrolysis reaction, causes hydrogen production to increase.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123584586","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

AN EXPERIMENTAL STUDY OF THE EFFECT OF VARIATION OF IMPACT LEVELS ON WORKING EFFICIENCY OF ARCHIMEDES SCREW TURBINE ON MICRO-HYDRO POWER PLANT 微水电厂阿基米德螺杆式水轮机冲击水平变化对其工作效率影响的实验研究

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-01-31 DOI: 10.21776/mechta.2023.004.01.1

A. Nugraha, Dani Surya Hamonangan Silalahi, P. R. Ansyah, M. N. Ramadhan, A. Amrullah, G. Cahyono

引用次数: 0

COMPARISON OF CHATTER CONTROL OF VARIABLE AND REGULAR HELIX TOOLS IN THE ALUMINUM END-MILLING PROCESS 变螺旋刀具与规则螺旋刀具在铝端铣削加工中的颤振控制比较

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-01-31 DOI: 10.21776/mechta.2023.004.01.6

A. A. Sonief, M. S. Ma’arif, P. Pratikto, Hans Juliano

{"title":"COMPARISON OF CHATTER CONTROL OF VARIABLE AND REGULAR HELIX TOOLS IN THE ALUMINUM END-MILLING PROCESS","authors":"A. A. Sonief, M. S. Ma’arif, P. Pratikto, Hans Juliano","doi":"10.21776/mechta.2023.004.01.6","DOIUrl":"https://doi.org/10.21776/mechta.2023.004.01.6","url":null,"abstract":"In the chatter, machining operations are undesirable because of the phenomena that affect product results, machining accuracy, tool life, and high operating value. Chatter is a vibration phenomenon that occurs in cutting tools due to the self-excitation of the influence of cutting parameters during the operation process of the machine. Types of chatter in machinery are regenerative and resonant. Because the pitch angles of variable helix tools vary, the helix angles of variable tools produce different tooth passing frequencies on each tool eye next to each other and can be used to prevent and control resonance. This study aimed to compare chatter control from the variable helix and regular-angle tools in the aluminum end milling process. The method is carried out through the end milling process experiment to determine the chatter control of the variable helix and regular-angle tools through the stability loop diagram. The results from this study were obtained by comparing control chatters in the milling process through controlling variable and standard helix angles as a guideline to produce the best surface roughness in the end milling process made from aluminum. The comparison of estimated control charts from variable helix tools is more comprehensive than regular helix tools.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124427105","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

RISK-BASED INSPECTION OF CRUDE AND REFINED OIL STORAGE TANK IN INDONESIA REFINERY PLANT 印尼炼油厂原油和成品油储罐的风险检验

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-01-31 DOI: 10.21776/mechta.2023.004.01.10

Try R. Sulistomo, A. Surjosatyo

{"title":"RISK-BASED INSPECTION OF CRUDE AND REFINED OIL STORAGE TANK IN INDONESIA REFINERY PLANT","authors":"Try R. Sulistomo, A. Surjosatyo","doi":"10.21776/mechta.2023.004.01.10","DOIUrl":"https://doi.org/10.21776/mechta.2023.004.01.10","url":null,"abstract":"A storage tank, which is used to store oil, is important and high-risk equipment that requires attention to its safety aspects. As a preventive measure, the government requires inspections of all storage tanks, either on a regular basis (every four years) or based on risk assessment. This safety study aims to create an inspection plan for the storage tanks at the oil refinery using the risk-based inspection (RBI) method. The RBI method in this study adopts API RP 581, Third Edition, 2016. Risk analysis is carried out in stages, including collecting technical data on the tanks, determining failure mechanisms, conducting risk analysis, and finally creating an inspection interval and method. Technical data was collected and studied for 29 storage tanks designed according to the API 650 standard. The determined failure mechanisms for the storage tank shell are atmospheric corrosion, general corrosion, and corrosion under insulation. The results of the risk analysis showed that all tanks have a medium risk, with 16 units in category 3C and 13 units in category 2C. The planned inspection methods are visual inspection, UT thickness or flaw thickness, and CUI, with most inspection intervals reaching 10 years. Based on this study, it is concluded that risk-based inspection (RBI) is more effective and efficient than the specific time interval inspection method (every 4 years).","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"177 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133898670","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

EFFECT OF VOLTAGE ON THE THICKNESS OF OXIDE LAYER AT ALUMINUM ALLOYS FOR STRUCTURAL BONDING USING PHOSPHORIC SULFURIC ACID ANODIZING (PSA) PROCESS 电压对磷酸硫酸阳极氧化(psa)铝合金结构键合氧化层厚度的影响

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-01-31 DOI: 10.21776/mechta.2023.004.01.8

H. N. Chamidy, A. Ngatin, Anisa Fitriani Rosyadi, Arisya Julviana, Noviyani Noviyani

{"title":"EFFECT OF VOLTAGE ON THE THICKNESS OF OXIDE LAYER AT ALUMINUM ALLOYS FOR STRUCTURAL BONDING USING PHOSPHORIC SULFURIC ACID ANODIZING (PSA) PROCESS","authors":"H. N. Chamidy, A. Ngatin, Anisa Fitriani Rosyadi, Arisya Julviana, Noviyani Noviyani","doi":"10.21776/mechta.2023.004.01.8","DOIUrl":"https://doi.org/10.21776/mechta.2023.004.01.8","url":null,"abstract":"The aerospace industry mostly uses the aluminum alloys 2xxx and 7xxx series for their fuselage construction, and some of them are assembled using structural bonding because it is strong, easy during the fabrication process, resistant to corrosion, and non-toxic. The anodization process is a proven surface treatment method for structural bonding. Phosphoric Sulfuric Acid Anodizing (PSA) is an eco-friendly alternative as a chromate-free solvent technology for the anodizing process that is applied for structural bonding. The thickness of the oxide layer caused by the voltage given in this process was evaluated in terms of corrosion resistance using the oxide layer's thickness as the main factor. The PSA process of AA2024 T3 clad was carried out at a constant concentration of 125 g/L of phosphoric acid, 80 g/L of sulfuric acid, 27 A, and a temperature of 26 to 28 OC for 23 minutes with various voltages. The voltage was varied at 16, 18, and 20 VDC. The optimum condition for the voltage applied was 18 VDC, which resulted in an oxide layer thickness of 2.76 µm.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132975911","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: 2

COMPUTER SIMULATION INVESTIGATION OF CRASH BOX DESIGN AS SAFETY-PROTECTION TECHNOLOGY FOR INDONESIA HIGH SPEED TRAIN 印尼高速列车安全防护技术碰撞箱设计的计算机仿真研究

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-01-31 DOI: 10.21776/mechta.2023.004.01.11

Dzikri Amali Musyaffa, Moch. Agus Choiron, Y. Irawan, Nafisah Arina Hidayati, Taryono Taryono, S. Gorbatyuk

{"title":"COMPUTER SIMULATION INVESTIGATION OF CRASH BOX DESIGN AS SAFETY-PROTECTION TECHNOLOGY FOR INDONESIA HIGH SPEED TRAIN","authors":"Dzikri Amali Musyaffa, Moch. Agus Choiron, Y. Irawan, Nafisah Arina Hidayati, Taryono Taryono, S. Gorbatyuk","doi":"10.21776/mechta.2023.004.01.11","DOIUrl":"https://doi.org/10.21776/mechta.2023.004.01.11","url":null,"abstract":"The crashworthiness of a railway vehicle has been developed to provide energy absorption capacity and efficiency of energy absorption. This study presents a computer simulation to determine the energy-absorbing structure of the new addition of a crash box design on the Indonesian high-speed train in a collision scenario. The crashworthiness analysis in the crash box is done with software based on finite element methods. The crash box is modeled as a thin-walled structure located in coupler housing, between the draft gear and the car frame. The test model was carried out according to the 2019 SNI 8826 standard using a frontal impact test with an impactor mass of 38.807 kg and a speed of 10 m/s. The pattern of deformation and energy absorption is obtained by calculating the area under the graphical curve of the relationship between the force reaction and the displacement obtained from the simulation. The deceleration of the train is obtained from the graph of acceleration against time on the impactor. The simulation results show that the addition of a crash box design as an energy absorption module on a safety protection technology for railway vehicles can reduce the severity of the impact and improve passenger safety. The application of the initial crash box model also shows an unacceptable train deceleration in the SNI 8826 test standard.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"600 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123159963","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: 1

STRESS ANALYSIS EVALUATION AND PIPE SUPPORT TYPE ON HIGH-PRESSURE AND TEMPERATURE STEAM PIPE 高压高温蒸汽管道应力分析评价及管道支撑型式

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-01-31 DOI: 10.21776/mechta.2023.004.01.4

A. Aswin, Ahmad Hasnan

{"title":"STRESS ANALYSIS EVALUATION AND PIPE SUPPORT TYPE ON HIGH-PRESSURE AND TEMPERATURE STEAM PIPE","authors":"A. Aswin, Ahmad Hasnan","doi":"10.21776/mechta.2023.004.01.4","DOIUrl":"https://doi.org/10.21776/mechta.2023.004.01.4","url":null,"abstract":"The design and analysis of piping systems are critical in the power and process industries. The steam pipe is one of the main requirements for the plant to be installed. High-pressure and high-temperature steam pipes in the piping system are critical lines that need to be subjected to stress analysis. This study aims to evaluate the stress and the effect of using pipe supports on the stress in the piping system. Stress analysis is needed to ensure that the piping system that is designed is safe and does not exceed the allowable stress under operating conditions. Data analysis used ASTM A335-P11 as a pipe material with a design pressure of 65 bars and a design temperature of 480 °C. Stress analysis was carried out using CAESAR II software, which refers to ASME B31.3 process piping standards and codes. The findings revealed that the type of support chosen, such as the gap and distance of pipe support, has a significant impact on the stress value in the piping system. The results of the analysis are carried out several times to get the stress value so that it does not exceed the allowable stress. The greatest stress value occurs at the expansion load condition in the steam pipe system design. The chosen piping system design has a ratio of 93.6%, which is located at node 220 with a stress value of 35889.1 psi and an allowable stress of 38327.2 psi. Because the stress value that occurs is below the allowable stress, the steam pipe system is safe to be installed and operated.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"107 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114029955","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

FINITE ELEMENT ANALYSIS ON DUAL SMALL PLATE AND SINGLE FIXATION PLATE FOR DISTAL COLLARBONE FRACTURE TREATMENT 双小钢板与单固定钢板治疗锁骨远端骨折的有限元分析

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-01-31 DOI: 10.21776/mechta.2023.004.01.9

Ilham Prabaswara, A. A. Sonief, Nafisah Arina Hidayati, K. Anam

{"title":"FINITE ELEMENT ANALYSIS ON DUAL SMALL PLATE AND SINGLE FIXATION PLATE FOR DISTAL COLLARBONE FRACTURE TREATMENT","authors":"Ilham Prabaswara, A. A. Sonief, Nafisah Arina Hidayati, K. Anam","doi":"10.21776/mechta.2023.004.01.9","DOIUrl":"https://doi.org/10.21776/mechta.2023.004.01.9","url":null,"abstract":"Distal fractures on the collarbone are one of the most common fractures. Using internal fixation is one of the most widely used methods for treating fractures in the collarbone. A dual fixation plate for a collarbone fracture is reported to reduce reoperation due to fixation devices. In this study, the element analysis results will be presented using finite element analysis software (FEA software) for the fixation of collarbone fractures using dual plate fixation, superior plate, and anteroinferior plate. A three-dimensional model of a collarbone fracture with a fracture distance of 3 mm is used to obtain the equivalent von Mises stress value. There was no significant difference in the bending and compressive loadings on the double small plate fixation, superior plate fixation, and anteroinferior plate fixation. The von Mises stress equivalent for double small plate fixation has the most significant value compared to superior and anteroinferior plate fixation. This demonstrates that dual small plate fixation has better biomechanical properties than single plate fixation because it has better stress shielding ability and will accelerate bone healing due to the low load on the collarbone if used by an active patient.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134516151","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