Pub Date : 2023-07-28DOI: 10.5614/mesin.2023.29.1.5
Rachman Setiawan
Anticlimber merupakan komponen pengaman untuk meningkatkan aspek crashworthiness, yang berfungsi khusus mencegah terjadinya fenomena overriding (tumpang tindih) saat tumburan kereta api yang dapat menyebabkan dampak jatuhnya korban jiwa yang signifikan. Sebagai rangkaian riset dan pengembangan untuk menerapkan teknologi crashworthiness pada kereta penumpang nasional, dikembangkan rancangan anticlimber yang sesuai dengan kereta penumpang produk industri nasional saat ini. Rancangan menggunakan konsep ribs terpisah yang dipasang pada kedua ujung kereta tepat di kanan dan kiri coupler. Anticlimber dirancanga sehingga dapat diintegrasikan dengan mudah tanpa terlalu lama mengganggu operasional KA, dan dapat diproduksi di dalam negeri dan tentunya efektif menahan gerakan vertikal (climbing) antar kereta. Analisis keefektifan rancangan anticlimber ini diuji dengan simulasi beban statik maupun beban dinamik berdasarkan kriteria standar internasional, yaitu BS EN 13227 yang dinilai paling lengkap mengatur aspek crashworthiness di perkeretaapian. Dari analisis kekuatan statik yang telah dilakukan, terbukti bahwa rancangan mampu menahan beban gaya longitudinal 60 tonf (177,6 kN) dan gaya angkat vertikal 12 tonf (588 kN) dan saat terjadi tumburan. Sedangkan dari simulasi dinamik pada kecepatan tumburan 10 m/s (36 km/jam), sesuai kriteria BS EN, dan kecepatan tinggi 20 m/s (72 km/jam), keberadaan anticlimber terbukti memenuhi standar dan mampu menurunkan kemungkinan terjadinya tumpang tindih, dibandingkan jika tanpa antilimber. Dengan hasil ini, dapat disimpulkan bahwa rancangan memiliki prospek yang baik untuk dikembangkan ke purwarupa dan pengujian lapangan, yang menjadi tahap berikutnya dari penelitian ini.
{"title":"Perancangan Anticlimber sebagai Perangkat Crashworthiness untuk Kereta Penumpang Indonesia","authors":"Rachman Setiawan","doi":"10.5614/mesin.2023.29.1.5","DOIUrl":"https://doi.org/10.5614/mesin.2023.29.1.5","url":null,"abstract":"Anticlimber merupakan komponen pengaman untuk meningkatkan aspek crashworthiness, yang berfungsi khusus mencegah terjadinya fenomena overriding (tumpang tindih) saat tumburan kereta api yang dapat menyebabkan dampak jatuhnya korban jiwa yang signifikan. Sebagai rangkaian riset dan pengembangan untuk menerapkan teknologi crashworthiness pada kereta penumpang nasional, dikembangkan rancangan anticlimber yang sesuai dengan kereta penumpang produk industri nasional saat ini. Rancangan menggunakan konsep ribs terpisah yang dipasang pada kedua ujung kereta tepat di kanan dan kiri coupler. Anticlimber dirancanga sehingga dapat diintegrasikan dengan mudah tanpa terlalu lama mengganggu operasional KA, dan dapat diproduksi di dalam negeri dan tentunya efektif menahan gerakan vertikal (climbing) antar kereta. Analisis keefektifan rancangan anticlimber ini diuji dengan simulasi beban statik maupun beban dinamik berdasarkan kriteria standar internasional, yaitu BS EN 13227 yang dinilai paling lengkap mengatur aspek crashworthiness di perkeretaapian. Dari analisis kekuatan statik yang telah dilakukan, terbukti bahwa rancangan mampu menahan beban gaya longitudinal 60 tonf (177,6 kN) dan gaya angkat vertikal 12 tonf (588 kN) dan saat terjadi tumburan. Sedangkan dari simulasi dinamik pada kecepatan tumburan 10 m/s (36 km/jam), sesuai kriteria BS EN, dan kecepatan tinggi 20 m/s (72 km/jam), keberadaan anticlimber terbukti memenuhi standar dan mampu menurunkan kemungkinan terjadinya tumpang tindih, dibandingkan jika tanpa antilimber. Dengan hasil ini, dapat disimpulkan bahwa rancangan memiliki prospek yang baik untuk dikembangkan ke purwarupa dan pengujian lapangan, yang menjadi tahap berikutnya dari penelitian ini.","PeriodicalId":31956,"journal":{"name":"Jurnal Teknik Mesin","volume":"72 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90359209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-28DOI: 10.5614/mesin.2023.29.1.6
Muhammad Aldy Hassan, Luhadi Satriawan, Jhonsen Taharuddin, S. Steven
Implant is one of the most important innovations in medical devices to help people with disabilities or injuries, one of them is the hip-joint implant. The hip-joint implant must-have properties such as good corrosion resistance, good biocompatibility, and good wear resistance. These properties are important for maintaining safety during surgery and future use. Nickel-free 316L stainless steel is one of the materials that is commonly used as implants and meets all the requirements for a material to be used as an implant. 316L stainless steel also has an advantage, a lower price than titanium and cobalt. However, 316L stainless steel has low wear resistance and needs to be coated in order to improve its wear resistance. Recent research reported that the metallic glass FeCrMoCB was able to cover cronidur30 and improved its wear resistance. This study discussed the properties of 316L stainless steel implants, the testing process, the manufacturing process, and the sustainability aspects of the manufacturing process.
{"title":"Kajian Penggunaan Baja Tahan Karat 316L sebagai Implan Sendi Panggul","authors":"Muhammad Aldy Hassan, Luhadi Satriawan, Jhonsen Taharuddin, S. Steven","doi":"10.5614/mesin.2023.29.1.6","DOIUrl":"https://doi.org/10.5614/mesin.2023.29.1.6","url":null,"abstract":"Implant is one of the most important innovations in medical devices to help people with disabilities or injuries, one of them is the hip-joint implant. The hip-joint implant must-have properties such as good corrosion resistance, good biocompatibility, and good wear resistance. These properties are important for maintaining safety during surgery and future use. Nickel-free 316L stainless steel is one of the materials that is commonly used as implants and meets all the requirements for a material to be used as an implant. 316L stainless steel also has an advantage, a lower price than titanium and cobalt. However, 316L stainless steel has low wear resistance and needs to be coated in order to improve its wear resistance. Recent research reported that the metallic glass FeCrMoCB was able to cover cronidur30 and improved its wear resistance. This study discussed the properties of 316L stainless steel implants, the testing process, the manufacturing process, and the sustainability aspects of the manufacturing process. ","PeriodicalId":31956,"journal":{"name":"Jurnal Teknik Mesin","volume":"2013 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78921130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-28DOI: 10.5614/mesin.2023.29.1.3
I. Reksowardojo, Aji Ardiansyah, Tobat Martin Leonardo, Dini Permatasari, Y. S. Indartono, Fariza Almira Ghany
The Smart Microgrid (SMG) can be used as a solution to overcome problems with electrical distribution on remote islets. The SMG system allows for a combination of conventional and renewable energy for power generation. Biofuel was chosen as a renewable energy source because of its abundant availability and ease of mobilization. This study examined the performance of B-20, Pure Tamanu Oil (PTO), and Pure Coconut Oil (PCO) in an IDI diesel engine that acts as a backup for SMG systems in the Karimunjawa Islands. The entire SMG system consists of: diesel engine, stabilizer, inverter, PV, batteries, ice maker, and a channel to the electrical grid. The results show that PTO has the highest value of thermal efficiency, that of 17.38%, but with a higher BSFC of 0.54 kg/kWh when compared to B-20 usage (14.69% and 0.51 kg/kWh). According to performance test results, their performance can be compared to the first part of this twin paper, which is laboratory testing, with a range of 2400-3200 W loads. Therefore, it can be said that biofuels are feasible for replacing B-20, as shown in pilot testing.
{"title":"Study of an Indirect Injection (IDI) Diesel Engine Using Pure Coconut Oil, Pure Tamanu Oil and B-20 for Smart Microgrid Applications Part II: Pilot Testing","authors":"I. Reksowardojo, Aji Ardiansyah, Tobat Martin Leonardo, Dini Permatasari, Y. S. Indartono, Fariza Almira Ghany","doi":"10.5614/mesin.2023.29.1.3","DOIUrl":"https://doi.org/10.5614/mesin.2023.29.1.3","url":null,"abstract":"The Smart Microgrid (SMG) can be used as a solution to overcome problems with electrical distribution on remote islets. The SMG system allows for a combination of conventional and renewable energy for power generation. Biofuel was chosen as a renewable energy source because of its abundant availability and ease of mobilization. This study examined the performance of B-20, Pure Tamanu Oil (PTO), and Pure Coconut Oil (PCO) in an IDI diesel engine that acts as a backup for SMG systems in the Karimunjawa Islands. The entire SMG system consists of: diesel engine, stabilizer, inverter, PV, batteries, ice maker, and a channel to the electrical grid. The results show that PTO has the highest value of thermal efficiency, that of 17.38%, but with a higher BSFC of 0.54 kg/kWh when compared to B-20 usage (14.69% and 0.51 kg/kWh). According to performance test results, their performance can be compared to the first part of this twin paper, which is laboratory testing, with a range of 2400-3200 W loads. Therefore, it can be said that biofuels are feasible for replacing B-20, as shown in pilot testing.","PeriodicalId":31956,"journal":{"name":"Jurnal Teknik Mesin","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77815572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-28DOI: 10.5614/mesin.2023.29.1.1
P. Darmanto, Muhammad Isroffi Pramudito
Suspension preheater is a raw mix pre-heating equipment used in a cement plant. The heat is used to raise raw mix temperature up to 800 0C -900 0C. The process results in an 80-90% degree of calcination. In this project, an increasing percentage of calcination in suspension preheater and reducing the load in the kiln is attempted, by including the calciner in suspension preheater. This project will focus on a suspension preheater system with a separate line calciner (SLC) at Cement Plant with 5000 ton per day (TPD) capacity. Calciner in existing conditions will be modified by extending its length by 2.5 m. Computational fluid dynamics (CFD) method was chosen to simulate the performance of the calciner. The results show that the alternative design can increases calcination percentage up to 76,32%, from the original value of 71%. The heat transfer on the alternative design also increases by 9%. As a result, the temperature output of the cyclone 5 also decreases, reducing the heat consumption. Another consequence of the alternative design is the possibility to increase the production capacity while maintaining the outlet temperature of cyclone 5, by increasing raw mix feeding without additional fuel consumption. Thus, clinker production can be increased by 8%.
{"title":"Study of Geometric Modification of Calciner in Cement Plant","authors":"P. Darmanto, Muhammad Isroffi Pramudito","doi":"10.5614/mesin.2023.29.1.1","DOIUrl":"https://doi.org/10.5614/mesin.2023.29.1.1","url":null,"abstract":"Suspension preheater is a raw mix pre-heating equipment used in a cement plant. The heat is used to raise raw mix temperature up to 800 0C -900 0C. The process results in an 80-90% degree of calcination. In this project, an increasing percentage of calcination in suspension preheater and reducing the load in the kiln is attempted, by including the calciner in suspension preheater. This project will focus on a suspension preheater system with a separate line calciner (SLC) at Cement Plant with 5000 ton per day (TPD) capacity. Calciner in existing conditions will be modified by extending its length by 2.5 m. Computational fluid dynamics (CFD) method was chosen to simulate the performance of the calciner. The results show that the alternative design can increases calcination percentage up to 76,32%, from the original value of 71%. The heat transfer on the alternative design also increases by 9%. As a result, the temperature output of the cyclone 5 also decreases, reducing the heat consumption. Another consequence of the alternative design is the possibility to increase the production capacity while maintaining the outlet temperature of cyclone 5, by increasing raw mix feeding without additional fuel consumption. Thus, clinker production can be increased by 8%.","PeriodicalId":31956,"journal":{"name":"Jurnal Teknik Mesin","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79110797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-28DOI: 10.5614/mesin.2023.29.1.4
Muhammad Labib Adyavit, Larasati Irischa Ramadhani, Stevenson Steven
Sandwich composites have been used as lightweight materials in aircraft manufacturing for a long time, from balsa wood sandwich in the 1930s to honeycomb and fiber-reinforced polymers sandwich. Its characteristics are considered as a 'perfect' material for aircraft, which has high strength with low density. Sandwich composites are the common materials for aircraft floor panels. The core is usually made of Nomex or aluminum honeycomb, while the skin is made of 1 "“ 2 ply of carbon/glass fiber in epoxy resin composite. The core is usually constructed using the corrugating or expansion method, whilst the skins are usually constructed using the prepreg lay-up method. Both materials are combined together by a simple adhesive bonding. Being the most strictly regulated transportation method on the planet, floor panel manufacturers must abide by aircraft manufacturing companies and local aviation authority standards and specifications to ensure the product's safety. The purpose of this study is to determine the most used materials for aircraft floor panels and why is it widely used, to understand the manufacturing process, and to know the specifications and standards that need to be fulfilled.
{"title":"Kajian Material Komposit Sandwich pada Floor Panel Pesawat Terbang","authors":"Muhammad Labib Adyavit, Larasati Irischa Ramadhani, Stevenson Steven","doi":"10.5614/mesin.2023.29.1.4","DOIUrl":"https://doi.org/10.5614/mesin.2023.29.1.4","url":null,"abstract":"Sandwich composites have been used as lightweight materials in aircraft manufacturing for a long time, from balsa wood sandwich in the 1930s to honeycomb and fiber-reinforced polymers sandwich. Its characteristics are considered as a 'perfect' material for aircraft, which has high strength with low density. Sandwich composites are the common materials for aircraft floor panels. The core is usually made of Nomex or aluminum honeycomb, while the skin is made of 1 \"“ 2 ply of carbon/glass fiber in epoxy resin composite. The core is usually constructed using the corrugating or expansion method, whilst the skins are usually constructed using the prepreg lay-up method. Both materials are combined together by a simple adhesive bonding. Being the most strictly regulated transportation method on the planet, floor panel manufacturers must abide by aircraft manufacturing companies and local aviation authority standards and specifications to ensure the product's safety. The purpose of this study is to determine the most used materials for aircraft floor panels and why is it widely used, to understand the manufacturing process, and to know the specifications and standards that need to be fulfilled.","PeriodicalId":31956,"journal":{"name":"Jurnal Teknik Mesin","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76399757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-28DOI: 10.5614/mesin.2023.29.1.2
I. Reksowardojo, Aji Ardiansyah, Tobat Martin Leonardo, Dini Permatasari, Y. S. Indartono, Fariza Almira Ghany
Smart Microgrid (SMG) is a hybrid system based on renewable energy which can use biofuel, taking advantage of local resources, as one of its energy sources. This study was conducted to determine the effect of using pure tamanu oil and pure coconut oil on engine performance, emissions, as well as their effects on particular components before and after endurance testing. The experiments were done using a diesel engine at speeds of 2200 rpm. In this study, engine performance and emission tests were done before and after the accelerated endurance tests, with loads of 800 W to 4000 W. The dimensions of the fuel injector nozzle needle and plunger pump were also measured. The fuel performance and emissions results showed slight differences between, before, and after endurance testing. The emissions tests also showed that the two biofuels, especially tamanu, are cleaner than B-20 and have better dimensional measurement results, compared to B-20. Therefore, these biofuels are feasible for replacing B-20, as shown in laboratory testing
{"title":"Study of an Indirect Injection Diesel Engine Using Pure Coconut Oil, Pure Tamanu Oil and B-20 as Fuel for Smart Microgrid Applications. Part I: Laboratory Testing","authors":"I. Reksowardojo, Aji Ardiansyah, Tobat Martin Leonardo, Dini Permatasari, Y. S. Indartono, Fariza Almira Ghany","doi":"10.5614/mesin.2023.29.1.2","DOIUrl":"https://doi.org/10.5614/mesin.2023.29.1.2","url":null,"abstract":"Smart Microgrid (SMG) is a hybrid system based on renewable energy which can use biofuel, taking advantage of local resources, as one of its energy sources. This study was conducted to determine the effect of using pure tamanu oil and pure coconut oil on engine performance, emissions, as well as their effects on particular components before and after endurance testing. The experiments were done using a diesel engine at speeds of 2200 rpm. In this study, engine performance and emission tests were done before and after the accelerated endurance tests, with loads of 800 W to 4000 W. The dimensions of the fuel injector nozzle needle and plunger pump were also measured. The fuel performance and emissions results showed slight differences between, before, and after endurance testing. The emissions tests also showed that the two biofuels, especially tamanu, are cleaner than B-20 and have better dimensional measurement results, compared to B-20. Therefore, these biofuels are feasible for replacing B-20, as shown in laboratory testing","PeriodicalId":31956,"journal":{"name":"Jurnal Teknik Mesin","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85864407","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}
M. N. Ramadhan, M. Adha, I. B. N. B. Sivanatha, Muhammad Irza Irawan
Vehicles are a means of transportation used by humans to support their daily activities. Its growth rate is getting higher, making this situation one of the causes of air pollution. One of the options in reducing dangerous motor exhaust emissions is to use a catalytic converter. Catalytic converter is a device that is installed in the exhaust channel of vehicles. The purpose of this study was to determine the effect of using a catalytic converter with a 2 mm thick brass plate material on the exhaust emissions of CO2, CO and HC in the Antasari Evo I. The test was carried out by comparing the exhaust emissions produced by the standard exhaust and the exhaust that was installed with a catalytic converter based on variations in engine idle speed, 2000 rpm, 2500 rpm and 3000 rpm. From the results of the study it was found that the effect of using a catalytic converter with brass plate material placed on the exhaust gas channel can reduce the maximum CO2 emission level by 42,85%, reduce the maximum CO2 emission level by 83%, and reduce the maximum HC emission level by 18,4 %.
车辆是人类用来支持日常活动的交通工具。它的增长速度越来越高，使这种情况成为空气污染的原因之一。减少危险的汽车废气排放的选择之一是使用催化转化器。催化转化器是安装在车辆排气通道内的一种装置。本研究的目的是确定使用2毫米厚黄铜板材料的催化转化器对Antasari Evo i废气中CO2、CO和HC排放的影响。根据发动机怠速、2000转/分、2500转/分和3000转/分的变化，通过比较标准排气和安装了催化转化器的排气产生的废气排放来进行测试。研究结果表明，在排气通道上放置铜板材料的催化转化器，可使废气最大CO2排放量降低42.85%，最大CO2排放量降低83%，最大HC排放量降低18.4%。
{"title":"Pengaruh Penggunaan Catalytic Converter Kuningan Terhadap Emisi Gas Buang Mobil Antasari Evo I","authors":"M. N. Ramadhan, M. Adha, I. B. N. B. Sivanatha, Muhammad Irza Irawan","doi":"10.30630/jtm.16.1.1084","DOIUrl":"https://doi.org/10.30630/jtm.16.1.1084","url":null,"abstract":"Vehicles are a means of transportation used by humans to support their daily activities. Its growth rate is getting higher, making this situation one of the causes of air pollution. One of the options in reducing dangerous motor exhaust emissions is to use a catalytic converter. Catalytic converter is a device that is installed in the exhaust channel of vehicles. The purpose of this study was to determine the effect of using a catalytic converter with a 2 mm thick brass plate material on the exhaust emissions of CO2, CO and HC in the Antasari Evo I. The test was carried out by comparing the exhaust emissions produced by the standard exhaust and the exhaust that was installed with a catalytic converter based on variations in engine idle speed, 2000 rpm, 2500 rpm and 3000 rpm. From the results of the study it was found that the effect of using a catalytic converter with brass plate material placed on the exhaust gas channel can reduce the maximum CO2 emission level by 42,85%, reduce the maximum CO2 emission level by 83%, and reduce the maximum HC emission level by 18,4 %.","PeriodicalId":31956,"journal":{"name":"Jurnal Teknik Mesin","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79765909","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}
Corn is the main food after rice, corn has the same nutritional value of protein, carbohydrates, and calories as rice. In everyday life, corn, in addition to being used as a food ingredient, can also be used as an industrial raw material and animal feed. But in the processing process, there are still difficulties if done manually because it takes a long time to shell corn kernels before being processed into corn-based foods. Therefore, a tool is needed to support the availability of corn quickly and support corn productivity. So, the author designed a corn sheller machine that can increase time efficiency. From the results of the design of the components used in the corn sheller machine, the diameter of the shaft used was at least 28 mm, the v-belt used was typed A with a length of 40 inches totaling 2 pieces, a drive pulley with a diameter of 2 inches, a pulley that was driven by 6 inches in diameter, the key used were 8mm x 7mm x 18mm, and used a gasoline engine with a power of 5.5 Hp. After the shelling test obtained capacity 360 kg per hour.
玉米是仅次于大米的主要食物，玉米的蛋白质、碳水化合物和卡路里的营养价值与大米相同。在日常生活中，玉米除了用作食品配料外，还可以用作工业原料和动物饲料。但在加工过程中，如果手工进行，仍然存在困难，因为在加工成玉米基食品之前需要很长时间才能剥去玉米粒的壳。因此，需要一种工具来支持玉米的快速可用性和支持玉米生产力。为此，笔者设计了一种能够提高时间效率的玉米脱壳机。从玉米脱壳机所用部件的设计结果来看，所使用的轴的直径至少为28mm，所使用的v形带为A型，长度为40英寸共2片，驱动滑轮的直径为2英寸，驱动滑轮的直径为6英寸，所使用的键为8mm x 7mm x 18mm，使用功率为5.5 Hp的汽油发动机。炮击试验后获得了每小时360公斤的能力。
{"title":"Perancangan Mesin Pemipil Jagung Dengan Poros Gerigi Berpenggerak Gasoline Engine","authors":"Alif Imam Utomo, Iwan Nugraha Gusniar, Eka Yulianty","doi":"10.30630/jtm.16.1.1100","DOIUrl":"https://doi.org/10.30630/jtm.16.1.1100","url":null,"abstract":"Corn is the main food after rice, corn has the same nutritional value of protein, carbohydrates, and calories as rice. In everyday life, corn, in addition to being used as a food ingredient, can also be used as an industrial raw material and animal feed. But in the processing process, there are still difficulties if done manually because it takes a long time to shell corn kernels before being processed into corn-based foods. Therefore, a tool is needed to support the availability of corn quickly and support corn productivity. So, the author designed a corn sheller machine that can increase time efficiency. From the results of the design of the components used in the corn sheller machine, the diameter of the shaft used was at least 28 mm, the v-belt used was typed A with a length of 40 inches totaling 2 pieces, a drive pulley with a diameter of 2 inches, a pulley that was driven by 6 inches in diameter, the key used were 8mm x 7mm x 18mm, and used a gasoline engine with a power of 5.5 Hp. After the shelling test obtained capacity 360 kg per hour.","PeriodicalId":31956,"journal":{"name":"Jurnal Teknik Mesin","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77129667","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}
Polymer materials have been widely developed as alternative materials to replace metal materials due to various advantages such as having low density and an easy manufacturing process. Still, polymers have many disadvantages, including not having high mechanical strength, easy to crack when hit by impact. One of the materials studied is an unsaturated polyester polymer widely used for composite matrices in vehicle structural components, aircraft and ship bodies, and vehicle components. One of the studied fibers is rice husk particle fiber. The study of cracks is essential because it causes the material to no longer be able to support the load according to the previous plan and causes failure to occur more quickly. One way to overcome material failure due to cracks in the composite material is to prevent crack propagation by adding reinforcing material. In this study, a composite material was made using rice husk fiber to increase the crack resistance of the polyester composite matrix. From the results of crack testing, there is a tendency to increase the percentage of rice husks by 5%, 10%, 15%, and 20%. The value expected to be obtained for determining the crack resistance of the material is the value of the stress intensity factor (K1). The most significant K1 value was obtained at a 15% rice husk percentage variable of 1,558 MPa.m0.5. This price could increase the value of the pure polyester stress intensity factor K1 by 0.667 MPa.m0.5, indicating an increase of 233.58%.
{"title":"Metode Peningkatan Ketahanan Retak Resin Polyester Terhadap Penambahan Serat Sekam Padi","authors":"Yul Hizhar, Nusyirwan Nusyirwan","doi":"10.30630/jtm.16.1.1097","DOIUrl":"https://doi.org/10.30630/jtm.16.1.1097","url":null,"abstract":"Polymer materials have been widely developed as alternative materials to replace metal materials due to various advantages such as having low density and an easy manufacturing process. Still, polymers have many disadvantages, including not having high mechanical strength, easy to crack when hit by impact. One of the materials studied is an unsaturated polyester polymer widely used for composite matrices in vehicle structural components, aircraft and ship bodies, and vehicle components. One of the studied fibers is rice husk particle fiber. The study of cracks is essential because it causes the material to no longer be able to support the load according to the previous plan and causes failure to occur more quickly. One way to overcome material failure due to cracks in the composite material is to prevent crack propagation by adding reinforcing material. In this study, a composite material was made using rice husk fiber to increase the crack resistance of the polyester composite matrix. From the results of crack testing, there is a tendency to increase the percentage of rice husks by 5%, 10%, 15%, and 20%. The value expected to be obtained for determining the crack resistance of the material is the value of the stress intensity factor (K1). The most significant K1 value was obtained at a 15% rice husk percentage variable of 1,558 MPa.m0.5. This price could increase the value of the pure polyester stress intensity factor K1 by 0.667 MPa.m0.5, indicating an increase of 233.58%.","PeriodicalId":31956,"journal":{"name":"Jurnal Teknik Mesin","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78100949","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}
The metal industry in Tegal Regency is classified into ferrous and non-ferrous metal industries. The shipping component industry is the leading producer of the non-ferrous metal industry. The problem faced by the non-ferrous metal processing industry, especially the Small and Medium Industry ship components is the availability of standard materials as raw materials at affordable prices. Instead, SMEs use scrap material to reduce selling prices, as a result of which product quality does not meet the required specifications. This research made 2 (two) formulas of AlSi10Mg(b) from an aluminum scrap mixture where AlSi10Mg(b) is one of the standard materials of cast aluminum alloy recognized by Biro Klasifikasi Indonesia (BKI). The study aimed to recommend raw material formulas to SMEs to ship components to make products according to BKI standards. The research began by collecting a database of aluminum scrap composition, then simulating calculations with an Excel program to obtain theoretical chemical composition so that the need for aluminum scrap was produced. The two standard material formulas of AlSi10Mg(b) are made from different main scrap where formula 1 is the piston, and formula 2 is the brake lining with the supporting scrap is the pan, aluminum elbow, and aluminum plate as well as the AlSi49 and AlMg20 master alloys. The simulation results are then cast with the sand-casting method. The cast results are made of specimens testing chemical composition and hardness. The results of the chemical composition test show that both formulas are in accordance with the conditions of AlSi10Mg(b) cast alloy, namely the percentage of Silicon (Si) and Magnesium (Mg) in formula 1 is 9.16% and 0.39% while formula 2 is 10.69% and 0.22%. Both formulas are still with Copper (Cu) content that still exceeds the limit of above 0.1%. The hardness value has met BKI standards above 50HBN.
法属国的金属工业分为黑色金属工业和有色金属工业。船舶零部件行业是有色金属行业的主要生产商。有色金属加工业，特别是中小工业船舶零部件面临的问题是能否以合理的价格获得标准材料作为原材料。相反，中小企业使用废料来降低销售价格，其结果是产品质量不符合要求的规格。本研究从废铝混合物中制备了2(2)种AlSi10Mg(b)配方，其中AlSi10Mg(b)是Biro Klasifikasi Indonesia (BKI)认可的铸铝合金标准材料之一。该研究旨在向中小企业推荐原材料配方，以便根据BKI标准运送组件以制造产品。研究首先收集了废铝成分数据库，然后用Excel程序进行模拟计算，得到理论化学成分，从而产生对废铝的需求。AlSi10Mg(b)的两种标准材料配方由不同的主废料制成，其中公式1为活塞，公式2为制动衬片，支撑废料为盘、铝弯头、铝板以及AlSi49和alm20主合金。然后用砂型浇铸法对模拟结果进行浇铸。铸造结果由测试化学成分和硬度的试样制成。化学成分试验结果表明，两种配方均符合AlSi10Mg(b)铸造合金的条件，即公式1中硅(Si)和镁(Mg)的含量分别为9.16%和0.39%，公式2中硅(Si)和镁(Mg)的含量分别为10.69%和0.22%。两种配方的铜(Cu)含量仍然超过0.1%以上的限制。硬度值达到50HBN以上的BKI标准。
{"title":"Analisis Sifat Mekanik Pada Material Standar Paduan COR ALSi10Mg(b) Dari Skrap Aluminium","authors":"Titiek Deasy Saptaryani, S.T., M.T., Yuli Nurasri, Budi Santoso, Mulianti Mulianti","doi":"10.30630/jtm.16.1.986","DOIUrl":"https://doi.org/10.30630/jtm.16.1.986","url":null,"abstract":"The metal industry in Tegal Regency is classified into ferrous and non-ferrous metal industries. The shipping component industry is the leading producer of the non-ferrous metal industry. The problem faced by the non-ferrous metal processing industry, especially the Small and Medium Industry ship components is the availability of standard materials as raw materials at affordable prices. Instead, SMEs use scrap material to reduce selling prices, as a result of which product quality does not meet the required specifications. This research made 2 (two) formulas of AlSi10Mg(b) from an aluminum scrap mixture where AlSi10Mg(b) is one of the standard materials of cast aluminum alloy recognized by Biro Klasifikasi Indonesia (BKI). The study aimed to recommend raw material formulas to SMEs to ship components to make products according to BKI standards. The research began by collecting a database of aluminum scrap composition, then simulating calculations with an Excel program to obtain theoretical chemical composition so that the need for aluminum scrap was produced. The two standard material formulas of AlSi10Mg(b) are made from different main scrap where formula 1 is the piston, and formula 2 is the brake lining with the supporting scrap is the pan, aluminum elbow, and aluminum plate as well as the AlSi49 and AlMg20 master alloys. The simulation results are then cast with the sand-casting method. The cast results are made of specimens testing chemical composition and hardness. The results of the chemical composition test show that both formulas are in accordance with the conditions of AlSi10Mg(b) cast alloy, namely the percentage of Silicon (Si) and Magnesium (Mg) in formula 1 is 9.16% and 0.39% while formula 2 is 10.69% and 0.22%. Both formulas are still with Copper (Cu) content that still exceeds the limit of above 0.1%. The hardness value has met BKI standards above 50HBN.","PeriodicalId":31956,"journal":{"name":"Jurnal Teknik Mesin","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84726110","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}
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