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A CFD analysis of NACA 0015 airfoil as a horizontal stabilizer with gap length variations 带间隙长度变化的NACA 0015翼型水平尾翼的CFD分析
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2023-06-15 DOI: 10.22219/jemmme.v7i2.26425
G. Nugroho, H. Sasongko, M. Adenan, Sarwono, H. Mirmanto
{"title":"A CFD analysis of NACA 0015 airfoil as a horizontal stabilizer with gap length variations","authors":"G. Nugroho, H. Sasongko, M. Adenan, Sarwono, H. Mirmanto","doi":"10.22219/jemmme.v7i2.26425","DOIUrl":"https://doi.org/10.22219/jemmme.v7i2.26425","url":null,"abstract":"The horizontal stabilizer is an important device which stabilize in the longitudinal direction is an important device for aviation. It also controls the pitching nose through the variation of elevator deflection angle. This work is to relate the lift coefficient with elevator deflection angle. The applied horizontal stabiliser is a plain flap with the gap length of 1.75%, 2% and 2.25% w.r.t. chord length. Results show that higher elevator deflection angle increases lift coefficient. For the 2 degree angle of attack and 20 degree of elevetor deflection angle, the lift coefficient is 0.93 (gap length 1.75%). Moreover, the lift coefficient is 1.83 for 10 degree horizontal stabiliser (gap length 2%).","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90403547","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
Variation of compaction pressure on hardness and wear of motorcycle disc brake pads 压实压力对摩托车盘式刹车片硬度和磨损的影响
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2023-06-15 DOI: 10.22219/jemmme.v7i2.27086
Alvandi, Khanif Setiyawan, A. Nugroho, Binyamin
{"title":"Variation of compaction pressure on hardness and wear of motorcycle disc brake pads","authors":"Alvandi, Khanif Setiyawan, A. Nugroho, Binyamin","doi":"10.22219/jemmme.v7i2.27086","DOIUrl":"https://doi.org/10.22219/jemmme.v7i2.27086","url":null,"abstract":"The reason for this study was to decide the impact of coconut shell powder molecule size on the hardness and wear pace of aluminum epoxy based composites. This study employs four particle size configurations in an experimental approach. Commercial powders with a 100 m molecular size make up the arrangement. The highest and lowest hardness values that were achieved, respectively, were 195 kg/mm2, 198 kg/mm2, and 203 kg. However, the wear rates of 0.85,0.67, and 0.63 are the highest and lowest. Since specimens with a pressure of 203 produce the highest average hardness, it can be deduced that the hardness number shown is proportional to the greater pressure/compression treatment. In contrast, the specific wear value added for the thirst test is influenced by the presence of increased traction as a result of the pressing and compacting treatment.","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75559885","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
Prototype of the chopping machine for the fronds and leaves of oil palms 油棕叶和叶子切碎机的原型
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2023-06-12 DOI: 10.22219/jemmme.v7i2.25512
Bayu Susilo, A. S. Nurrohkayati, Sigiet Haryo Pranoto, A. Nugroho
{"title":"Prototype of the chopping machine for the fronds and leaves of oil palms","authors":"Bayu Susilo, A. S. Nurrohkayati, Sigiet Haryo Pranoto, A. Nugroho","doi":"10.22219/jemmme.v7i2.25512","DOIUrl":"https://doi.org/10.22219/jemmme.v7i2.25512","url":null,"abstract":"Oil palm waste is the residue from the main product of the oil palm tree that is not utilized. Oil palm can produce solid waste in the form of stems, empty fruit bunches, shells, fiber (coir), and fronds. One oil palm tree can produce 40 to 50 fronds within one year. Oil palm fronds are obtained from the rest of the crop and when caring for the tree. This research aims to make and test a prototype chopper machine to utilize and reduce the waste of palm fronds and leaves. The driving motor on this prototype uses a 2 hp electric motor with 1450 rpm rotation, pulley 1, which is on a 4-inch electric motor, and pulley 2, which is on a 6-inch blade shaft, so there are 2 v-belts used with a size B-55. Calculations made during the design process of the prototype counter machine for palm fronds and leaves are Circumferential Speed of Pully, Circumferential Force of Pully, Belt Tension, Maximum Belt Tension, Number of Belt Rotations, Number of Belts, Belt Age and calculation of speed and torque on the blade shaft. The chopped ingredients are fresh or wet palm fronds and leaves. The count produced by the prototype is 206 kg/hour with an average of 5 repetitions. For prototype yield, the average yield produced from 5 replications was 94.41%, and the resulting chopped results were 20-40 mm long.","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90657609","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 depth of cut (DOC) and degree of serrations (DOS) on surface roughness of aluminum 6061 切削深度和锯齿度对6061铝表面粗糙度的影响
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2023-06-12 DOI: 10.22219/jemmme.v7i2.25513
Muhammad Sukroni, Heni Hendaryati, I. Aisyah
{"title":"Effect of depth of cut (DOC) and degree of serrations (DOS) on surface roughness of aluminum 6061","authors":"Muhammad Sukroni, Heni Hendaryati, I. Aisyah","doi":"10.22219/jemmme.v7i2.25513","DOIUrl":"https://doi.org/10.22219/jemmme.v7i2.25513","url":null,"abstract":"This study aims to determine the variation of the depth of cut (DOC) on the surface roughness and serration gram (DOS) in the 6061 aluminum turning process using medium speed. In this study the infeed depths used were 0.5 mm, 1 mm, 1.5 mm, and 2 mm by testing the surface roughness using a roughness tester, and testing the teeth gram (DOS) using the SEM (Scaning Electron Microscope) tester. The value of surface roughness (surface roughness) in relation to the depth of cut (DOC) in 6061 aluminum material using a conventional lathe has increased, while the value of the dentition gram (DOS) to the depth of cut (DOC) in the aluminum 6061 lathe process at a depth of 0.5 mm figure shows the percentage of DOS 31.8 percent then continues to decrease with increasing depth of ingestion on the lathe. Based on the research results, the increase in the surface roughness value was due to heat generation which resulted in damage to the chisel resulting in high surface roughness. In addition, variations in the depth of cut gave a negative effect by showing a decrease in the number of serrations in grams, which made it difficult to break and would result in eye damage. chisel","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"91 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89073717","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
Design of bionic prosthetic leg 仿生假肢的设计
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2023-06-12 DOI: 10.22219/jemmme.v7i2.21312
Aldiansyah Wahyu Pratama, D. Daryono, M. Mulyono
{"title":"Design of bionic prosthetic leg","authors":"Aldiansyah Wahyu Pratama, D. Daryono, M. Mulyono","doi":"10.22219/jemmme.v7i2.21312","DOIUrl":"https://doi.org/10.22219/jemmme.v7i2.21312","url":null,"abstract":"Along with the increase in the number of Indonesian people who are physically disabled and the number of cases of leg amputations above the knee, the need for prosthetic limbs in Indonesia is also increasing. Prosthetic limbs are tools to replace lost limbs caused by birth defects, amputations, or disease. The bionic prosthetic leg has a long-term useful purpose, as well as supporting the rights of people with disabilities. The device helps the above-the-knee amputee. To design a bionic prosthetic leg, a biomechanical analysis of work is needed to obtain a walking pattern in humans and an analysis of the structure and working material to obtain a safe and comfortable material for use in a bionic prosthetic foot. This bionic leg prosthetic uses an automatic system using an Electromyography (EMG) sensor as a signal picker for the muscles, Arduino Mega 2560 as an input signal processor which is then converted into an output signal and Planetary gear as a knee joint transmission so that the body does not fall forward or backward. The results of the analysis using Autodesk Inventor software on the prosthetic of the bionic leg can withstand a pressure of 404.526 MPa, withstand a reaction force of 354.576 N and a reaction moment of 15.4073 N. So based on the results of the bionic prosthetic leg is very safe and comfortable when used on people with disabilities.","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83624020","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
impact strength of composite with Abaća (Musa textilis) fiber Abaća (Musa textilis)纤维复合材料的冲击强度
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2023-04-06 DOI: 10.22219/jemmme.v7i2.25511
Muhammad Alif Akbar, Heni Hendaryati, M. Mamungkas
{"title":"impact strength of composite with Abaća (Musa textilis) fiber","authors":"Muhammad Alif Akbar, Heni Hendaryati, M. Mamungkas","doi":"10.22219/jemmme.v7i2.25511","DOIUrl":"https://doi.org/10.22219/jemmme.v7i2.25511","url":null,"abstract":"Materials are growing day by day, one of the most widely used materials is composite material, a composite is a material formed from a mixture of two or more forming materials through an inhomogeneous mixture, where the mechanical properties of each forming material are different. The focus of this research is to utilize abaca fiber to be used as a composite material using a polyester matrix. The manufacturing method used is the vacuum infusion method. The purpose of this study was to determine the impact strength of composites with chopped and intact banana fiber filler with a weight fraction of 10%, 20% and 30%. The highest impact value in this study obtained an average impact value of 0.523 Joule/mm2 at 30% weight fraction variation with chopped fiber, while the lowest value got an average impact value of 0.071 Joule/mm2 at 30% weight fraction with intact fiber. This shows that the 2 variations in weight and shape of the fiber with abaca fiber filler based on this research affect the value of impact strength.","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"57 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84700342","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
Sequential treatment process in a rotary container polishing machine with periodic workpiece location changes in working abrasives areas 工作磨料区域中工件位置周期性变化的旋转容器抛光机的顺序处理过程
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2023-03-23 DOI: 10.30464/jmee.00317
Mateusz Juniewicz, Jarosław Plichta
{"title":"Sequential treatment process in a rotary container polishing machine with periodic workpiece location changes in working abrasives areas","authors":"Mateusz Juniewicz, Jarosław Plichta","doi":"10.30464/jmee.00317","DOIUrl":"https://doi.org/10.30464/jmee.00317","url":null,"abstract":"This paper presents the process of a 3-step machining process involving pre-treatment, smoothing and polishing, placing the workpiece in different energy levels of the working load in a rotary-cascade container smoother, by moving it towards the radial direction of the working chamber of the smoother. Studies show the ability to control the course of pre-treatment, smoothing and finishing intensity, both in terms of process parameters and treatment time. Such a structure of the machining process, it also allows you to influence the structure geometry of the machined surfaces in successive stages of machining, and consequently on the final quality. The proposed organization and structure of the process allows for the creation of a new one surface treatment strategy.","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"59 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88672758","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
X-ray diffraction and thermo gravimetric analysis of surface modified areca sheath fibre epoxy composites 表面改性槟榔纤维环氧复合材料的x射线衍射和热重分析
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2023-03-23 DOI: 10.30464/jmee.00314
Ravi Kumar Chandrappa, Sakshi Shantharam Kamath
{"title":"X-ray diffraction and thermo gravimetric analysis of surface modified areca sheath fibre epoxy composites","authors":"Ravi Kumar Chandrappa, Sakshi Shantharam Kamath","doi":"10.30464/jmee.00314","DOIUrl":"https://doi.org/10.30464/jmee.00314","url":null,"abstract":"Focus of the current study is to shed more light on thermal behaviour of composites made up of areca sheath fibres. The XRD analysis revealed that crystallinity index and crystallinity percentage increased with different treatments, as it leads to better interaction of fibre and resin. The crystallinity percentage of alkali treated fibre and benzoyl peroxide treated fibre increased by 5.87 and 8.44% respectively compared to untreated fibre. This was further evident in thermo studies which proved better thermal stability in benzoyl peroxide treated fibre composite.","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"81 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88337997","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 parameters of the stereolithography process on the part quality 立体光刻工艺参数对零件质量的影响
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2023-03-14 DOI: 10.30464/jmee.00315
Tomasz Lewiński, Krzysztof Kukiełka, Tomasz Chaciński, Piotr Jaskólski
{"title":"Effect of parameters of the stereolithography process on the part quality","authors":"Tomasz Lewiński, Krzysztof Kukiełka, Tomasz Chaciński, Piotr Jaskólski","doi":"10.30464/jmee.00315","DOIUrl":"https://doi.org/10.30464/jmee.00315","url":null,"abstract":"This paper investigates the effect of additive manufacturing parameters on the manufacturing quality of selected gear mechanism components. Three input variables, and two output variables were determined. The result was the determination of the most optimal combination of key parameters and the determination of regression equations. The concept of manufacturing objects of a very complex shape, by any person, under various conditions through the use of a low-cost device became the basis for this thesis topic. Curing time, layer thickness, and lift speed are among the basic parameters, with a large range of manipulation. A hypothesis was formulated that these three parameters are crucial to produce a part with the smallest possible deviations from the computer model. A handheld scanner was used to scan the samples and compare them with the CAD model. Based on the study, optimal parameters for layer thickness, curing time and lift speed were proposed.","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87891371","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
Characteristics of stress distribution of a multi layered cylindrical pressure vessel 多层圆柱形压力容器的应力分布特性
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2023-01-19 DOI: 10.30464/jmee.00305
Somnath Somadder, Palash Das, Md. Ashraful Islam
{"title":"Characteristics of stress distribution of a multi layered cylindrical pressure vessel","authors":"Somnath Somadder, Palash Das, Md. Ashraful Islam","doi":"10.30464/jmee.00305","DOIUrl":"https://doi.org/10.30464/jmee.00305","url":null,"abstract":"The operation of a multilayer pressure vessel subjected to thermomechanical loads is very significant. The cylindrical pressure vessel is widely used in industrial engineering, for example, to hold a variety of different types of liquid. On thick-walled cylinders, various loading circumstances such as internal overpressure, external overpressure, heat, bending, twisting, and combinations of these load characteristics are applied. Researchers have developed a number of strategies for enhancing the strength of cylinders, including the use of multilayer cylinders and increasing the thickness of the walls. This paper presents the results of an analytical and numerical analysis of a three-layer cylinder. Abaqus FEA software is used to determine temperature, displacement, and stress distribution of multilayer cylinder considering the effect of centripetal and centrifugal heat flow. From the numerical analysis it is observed that  centrifugal heat flux is more hazardous than centripetal heat flux for multilayered cylinder under thermo-mechanical loading.","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91349875","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
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