Pub Date : 2021-04-21DOI: 10.36526/V-MAC.V6I1.1151
Hendra Widiyantoro, I. Qiram, Dewi Sartika
Unwanted grass growth on land will cause problems for humans. Generally, the sickle is a tool that is often used to cut grass. The use of a sickle has several disadvantages, namely using manual labor, in some cases there is a narrow-angle that makes it impossible to cut with a sickle. This study uses variations of 2, 3, and 4 blades with motor rotation speeds of 666 RPM, 1713 RPM, and 3454 RPM. The data collection method is done by determining the mass of grass by 25 grams, then the grass is arranged and moved closer to the blade with a cutting time of 10 seconds. The shortest cut grass results were obtained on the number of blades 4 with a motor rotation speed of 3454 RPM, which is 10.92 mm. The difference in mass of grass clippings in the variation of blade 4 with RPM 1 and 3, which is 4 grams, indicates the overall cut grass Keywords: blade, motor rotation speed, grass cutted
{"title":"Studi Pengaruh Kecepatan Motor Dan Jumlah Bilah Pisau Terhadap Hasil Potongan Rumput","authors":"Hendra Widiyantoro, I. Qiram, Dewi Sartika","doi":"10.36526/V-MAC.V6I1.1151","DOIUrl":"https://doi.org/10.36526/V-MAC.V6I1.1151","url":null,"abstract":"Unwanted grass growth on land will cause problems for humans. Generally, the sickle is a tool that is often used to cut grass. The use of a sickle has several disadvantages, namely using manual labor, in some cases there is a narrow-angle that makes it impossible to cut with a sickle. This study uses variations of 2, 3, and 4 blades with motor rotation speeds of 666 RPM, 1713 RPM, and 3454 RPM. The data collection method is done by determining the mass of grass by 25 grams, then the grass is arranged and moved closer to the blade with a cutting time of 10 seconds. The shortest cut grass results were obtained on the number of blades 4 with a motor rotation speed of 3454 RPM, which is 10.92 mm. The difference in mass of grass clippings in the variation of blade 4 with RPM 1 and 3, which is 4 grams, indicates the overall cut grass \u0000Keywords: blade, motor rotation speed, grass cutted","PeriodicalId":148301,"journal":{"name":"V-MAC (Virtual of Mechanical Engineering Article)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126044894","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 : 2021-04-20DOI: 10.36526/V-MAC.V6I1.1293
Aris Nur Setya Budi, I. Qiram, Dewi Sartika
Window film is a thin layer on car glass that functions as a medium for repelling sunlight. This study aims to determine the effect of percentage of window film density on the thermal and lighting distribution of the vehicle cabin. This research was conducted using a room model measuring 50x50x30 cm. The variation of window film uses two brands of Ultima and 3M, with the respective percentages of 40% and 60%. When the experiment was carried out in an open space, the irradiation process was carried out for 2 hours using the sun's rays at 11.00 - 13.00 WIB in each variation. Temperature measurement uses a digital thermometer on the surface of the coated glass (T1) and indoors (T2), while the measurement of light intensity uses a lux meter that is placed outdoors (I1) and indoors (I2). Data analysis using the equations of temperature rate and effectiveness of heat and light reduction. The results showed that the difference in the percentage of glass film density affected the rate of heat transfer and the intensity of the light entering the room. The heat transfer rate tends to increase in Q1 with a value of 58375.61 joules, and decrease in Q2 with a value of 1160.46 joules in the variation of 3M glass film brands with a 60% concentration level. Meanwhile, the average temperature increase rate is 0.002 ℃ / minute for all variations of window film brands with a light intensity of 0.007 - 0.008 lux. Keywords : window film, temperature rate, light intensity, heat transfer.
{"title":"Pengaruh Prosentase Kepekatan Kaca Film Terhadap Distribusi Termal dan Pencahayaan Kabin Kendaraan","authors":"Aris Nur Setya Budi, I. Qiram, Dewi Sartika","doi":"10.36526/V-MAC.V6I1.1293","DOIUrl":"https://doi.org/10.36526/V-MAC.V6I1.1293","url":null,"abstract":"Window film is a thin layer on car glass that functions as a medium for repelling sunlight. This study aims to determine the effect of percentage of window film density on the thermal and lighting distribution of the vehicle cabin. This research was conducted using a room model measuring 50x50x30 cm. The variation of window film uses two brands of Ultima and 3M, with the respective percentages of 40% and 60%. When the experiment was carried out in an open space, the irradiation process was carried out for 2 hours using the sun's rays at 11.00 - 13.00 WIB in each variation. Temperature measurement uses a digital thermometer on the surface of the coated glass (T1) and indoors (T2), while the measurement of light intensity uses a lux meter that is placed outdoors (I1) and indoors (I2). Data analysis using the equations of temperature rate and effectiveness of heat and light reduction. The results showed that the difference in the percentage of glass film density affected the rate of heat transfer and the intensity of the light entering the room. The heat transfer rate tends to increase in Q1 with a value of 58375.61 joules, and decrease in Q2 with a value of 1160.46 joules in the variation of 3M glass film brands with a 60% concentration level. Meanwhile, the average temperature increase rate is 0.002 ℃ / minute for all variations of window film brands with a light intensity of 0.007 - 0.008 lux. \u0000 \u0000Keywords : window film, temperature rate, light intensity, heat transfer.","PeriodicalId":148301,"journal":{"name":"V-MAC (Virtual of Mechanical Engineering Article)","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134592375","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 : 2021-04-20DOI: 10.36526/V-MAC.V6I1.1294
Roy Sardian, Gatut Rubiono, Anas Mukhtar
One important process in improving water quality is the aeration process. In carrying out this aeration process it is necessary to use a device called an aerator. The working principle of this tool is to add dissolved oxygen in the water. This research was conducted using an aerator column with a height of 50 cm, a length of 25 cm and a width of 5 cm with freshwater and sea water media. the addition of variations in the form of air hole diameter (needle) with a variation of 1 mm, 1.5 mm and 2 mm and air discharge of 1, 2 and 3 liters / minute. The results showed that the larger the needle diameter, the larger the diameter of the air bubbles in fresh water and sea air. The difference in media between freshwater and sea air affects the diameter of the air bubbles. Keywords - aeration, aerator column, air bubbles
{"title":"Pengaruh Diameter Lubang Udara Terhadap Dinamika Gelembung Udara Dalam Kolom Air","authors":"Roy Sardian, Gatut Rubiono, Anas Mukhtar","doi":"10.36526/V-MAC.V6I1.1294","DOIUrl":"https://doi.org/10.36526/V-MAC.V6I1.1294","url":null,"abstract":"One important process in improving water quality is the aeration process. In carrying out this aeration process it is necessary to use a device called an aerator. The working principle of this tool is to add dissolved oxygen in the water. This research was conducted using an aerator column with a height of 50 cm, a length of 25 cm and a width of 5 cm with freshwater and sea water media. the addition of variations in the form of air hole diameter (needle) with a variation of 1 mm, 1.5 mm and 2 mm and air discharge of 1, 2 and 3 liters / minute. The results showed that the larger the needle diameter, the larger the diameter of the air bubbles in fresh water and sea air. The difference in media between freshwater and sea air affects the diameter of the air bubbles. \u0000 \u0000Keywords - aeration, aerator column, air bubbles","PeriodicalId":148301,"journal":{"name":"V-MAC (Virtual of Mechanical Engineering Article)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121943940","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 : 2021-04-20DOI: 10.36526/V-MAC.V6I1.1103
Sahrul Al Husaini, I. Qiram, Dewi Sartika
Penggunaan energi bahan bakar dari fosil terbesar berada pada sektor transportasi, industri dan pembangkit daya atau listrik. Tujuan dalam penelitin ini adalah untuk mencari efektifitas rasio campuran limbah kotoran sapi dan limbah pohon pisang terhadap hasil pembuatan bio gas. Penelitian menggunakan varasi bahan campuran yang meliputi kotoran sapi dengan campuran limbah pohon pisang, air dan EM4 dengan rasio A (1:5:5:10:1), B (5:7:10:1) dan C (7:5:10:1). Proses fermentasidilakukan selama 10 hari dengan disertai pengukuran tekanan gas/hari menggunakan manometer U dan uji nyala api. Analisis nyala api meliputi pengukuran luas penampang api, warna api dan temperatur api. Hasil penelitian menunjukkan bahwa rasio campuran berpengaruh terhadap karakteristik gas produk. Tekanan gas tertinggi pada campuran C sebesar 251,74 Kpa dan terkecil pada variasi campuran B sebesar 189,81 Kpa. Sedangkan produk api paling unggul ditunjukkan pada variasi campuran C dengan luas penampang api 48.3 cm2, didominasi warna api biru 75.56%. Sehingga diketahui efektifitas rasio campuran bahan terbaik di pengaruhi oleh rasio bahan limbah kotoran sapi hal ini disebapkan oleh kandungan CH4 dari kotoran sapi lebih besar dibandingkan dengan limbah pohon pisang..Kata kunci: limbah, pohon pisang, kotoran sapi, biogas, efektifitas
{"title":"Pengaruh Efektifitas Rasio Campuran Bahan Limbah Kotoran Sapi Dan Limbah Pohon Pisang Terhadap Hasil Biogas","authors":"Sahrul Al Husaini, I. Qiram, Dewi Sartika","doi":"10.36526/V-MAC.V6I1.1103","DOIUrl":"https://doi.org/10.36526/V-MAC.V6I1.1103","url":null,"abstract":"Penggunaan energi bahan bakar dari fosil terbesar berada pada sektor transportasi, industri dan pembangkit daya atau listrik. Tujuan dalam penelitin ini adalah untuk mencari efektifitas rasio campuran limbah kotoran sapi dan limbah pohon pisang terhadap hasil pembuatan bio gas. Penelitian menggunakan varasi bahan campuran yang meliputi kotoran sapi dengan campuran limbah pohon pisang, air dan EM4 dengan rasio A (1:5:5:10:1), B (5:7:10:1) dan C (7:5:10:1). Proses fermentasidilakukan selama 10 hari dengan disertai pengukuran tekanan gas/hari menggunakan manometer U dan uji nyala api. Analisis nyala api meliputi pengukuran luas penampang api, warna api dan temperatur api. Hasil penelitian menunjukkan bahwa rasio campuran berpengaruh terhadap karakteristik gas produk. Tekanan gas tertinggi pada campuran C sebesar 251,74 Kpa dan terkecil pada variasi campuran B sebesar 189,81 Kpa. Sedangkan produk api paling unggul ditunjukkan pada variasi campuran C dengan luas penampang api 48.3 cm2, didominasi warna api biru 75.56%. Sehingga diketahui efektifitas rasio campuran bahan terbaik di pengaruhi oleh rasio bahan limbah kotoran sapi hal ini disebapkan oleh kandungan CH4 dari kotoran sapi lebih besar dibandingkan dengan limbah pohon pisang..Kata kunci: limbah, pohon pisang, kotoran sapi, biogas, efektifitas","PeriodicalId":148301,"journal":{"name":"V-MAC (Virtual of Mechanical Engineering Article)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124266759","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 : 2021-04-20DOI: 10.36526/V-MAC.V6I1.1147
Viqi Verdika, I. Qiram, Gatut Rubiono
Kolektor surya adalah suatu alat yang dapat menangkap energi matahari dan mengubahnya menjadi energi kalor yang berguna. Salah satu cara untuk meningkatkan performa dari kolektor surya adalah menggunakan alternatif media absorber.Tujuan penelitian ini adalah untuk mendapatkan pengaruh kenaikan suhu pada kolektor setelah menggunakan tambahan absorber berupa batu. Pada penelitian ini menggunakan tiga variasi absorber yaitu menggunakan batu,pasir, dan batu campuran pasir. Alat yang digunakan pada penelitian ini adalah thermometer digital dan sumber panas menggunakan lampu sorot 450 watt dengan jarak lampu ke kolektor 1m. Pada penelitian ini menggunakan 3 jenis variasi bukaan katup yaitu pembuka aliran full dengan nilai debit 100,07 ml/dt, pembuka aliaran ½ dengan nilai debit 67,99 ml/dt dan pembuka aliran ¼ dengan nilai debit 100,07 ml/dt. Pada penelitian ini waktu yang ditempuh setiap variasi absorber adalah 4 jam dengan interval pengukuran setiap 5 menit pada suhu air masuk dan kenaikan suhu air keluar. Hasil dalam penelitian ini adalah Jenis absorber berpengaruh terhadap unjuk kerja kolektor surya. Pengaruhnya pengunaan absorber batu terhadap kolektor surya adalah meningkatnya kenaikan suhu pada air yang stabil, dengan kenaikan suhu maksimal 34,1℃. Dari beda suhu memiki tiga variasi absorber batu, pasir, batu dan pasir pada setiap variasi absorber tersebut memiliki sifat penyerap panas yang perbeda beda. Pasir memiliki sifat penyerap panas yang paling rendah diantara variasi yang yang lain. Hasil penelitian menunjukkan bahwa variasi pembuka katub ½ dengan nilai debit 67,99 ml/dt memiliki pengaruh beda suhu lebih tinggi sebesar 1,1℃. Kata kunci: kolektor surya, absorber, batu, pasir, perpindahan panas
太阳能收集器是一种收集太阳能并将其转化为有用电缆能量的装置。提高太阳能收集器性能的一个方法是使用替代媒体吸收器。这项研究的目的是利用岩体吸收特性后，对收集器产生温度上升的影响。在这项研究中，它使用三种吸收剂，即岩石、沙子和混合的沙子。这项研究使用的工具是数字温度计和热源，使用450瓦的探照灯，与100米收集器的距离。在这项研究上使用三种变体空缺开场即全流阀aliaran开胃100.07 ml / dt,准备出院的价值和价值½借记卡67.99 ml / dt和开场¼流动价值借记卡100.07 ml / dt。在这项研究中，每5分钟一次的吸收变化所花费的时间是4小时，在水温进入和水温上升的情况下，每5分钟测量一次。这项研究的结果是一种影响太阳收藏家抗议活动的absorber类型。对太阳能收集器的影响加以控制absorber石头是日益稳定的水,气温的最高气温34,1℃。不同的温度将不同的岩石、沙子、岩石和沙子的三种不同的吸收特性区分开来。在其他种类中，沙子的吸热性能最低。研究结果表明,变化值的开场放气阀½借记卡67.99 ml - dt有不同大小的更高温度的影响1.1℃。太阳能收集器，吸收器，岩石，沙子，热位移
{"title":"Analisa Performa Kolektor Surya Plat Datar Dengan Menggunakan Media Batu Sebagai Absorber","authors":"Viqi Verdika, I. Qiram, Gatut Rubiono","doi":"10.36526/V-MAC.V6I1.1147","DOIUrl":"https://doi.org/10.36526/V-MAC.V6I1.1147","url":null,"abstract":"Kolektor surya adalah suatu alat yang dapat menangkap energi matahari dan mengubahnya menjadi energi kalor yang berguna. Salah satu cara untuk meningkatkan performa dari kolektor surya adalah menggunakan alternatif media absorber.Tujuan penelitian ini adalah untuk mendapatkan pengaruh kenaikan suhu pada kolektor setelah menggunakan tambahan absorber berupa batu. Pada penelitian ini menggunakan tiga variasi absorber yaitu menggunakan batu,pasir, dan batu campuran pasir. Alat yang digunakan pada penelitian ini adalah thermometer digital dan sumber panas menggunakan lampu sorot 450 watt dengan jarak lampu ke kolektor 1m. Pada penelitian ini menggunakan 3 jenis variasi bukaan katup yaitu pembuka aliran full dengan nilai debit 100,07 ml/dt, pembuka aliaran ½ dengan nilai debit 67,99 ml/dt dan pembuka aliran ¼ dengan nilai debit 100,07 ml/dt. Pada penelitian ini waktu yang ditempuh setiap variasi absorber adalah 4 jam dengan interval pengukuran setiap 5 menit pada suhu air masuk dan kenaikan suhu air keluar. Hasil dalam penelitian ini adalah Jenis absorber berpengaruh terhadap unjuk kerja kolektor surya. Pengaruhnya pengunaan absorber batu terhadap kolektor surya adalah meningkatnya kenaikan suhu pada air yang stabil, dengan kenaikan suhu maksimal 34,1℃. Dari beda suhu memiki tiga variasi absorber batu, pasir, batu dan pasir pada setiap variasi absorber tersebut memiliki sifat penyerap panas yang perbeda beda. Pasir memiliki sifat penyerap panas yang paling rendah diantara variasi yang yang lain. Hasil penelitian menunjukkan bahwa variasi pembuka katub ½ dengan nilai debit 67,99 ml/dt memiliki pengaruh beda suhu lebih tinggi sebesar 1,1℃. \u0000Kata kunci: kolektor surya, absorber, batu, pasir, perpindahan panas","PeriodicalId":148301,"journal":{"name":"V-MAC (Virtual of Mechanical Engineering Article)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116682139","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 : 2021-04-20DOI: 10.36526/V-MAC.V6I1.1150
Hasrul Efendi, A. Putra, Dewi Sartika
Injector is an important component in the diesel engine fuel injection system. This study aims to obtain the results of the in-line type injection pump calibration in the equation of the fuel volume of a 4 cylinder diesel motor. The research was conducted by making simple calibration equipment. Experiments were carried out for 200-300 rpm, 350-450 rpm and 550-600 rpm experimental apparatus rotation speed. Measurements are made for the volume of fuel using a measuring cup. Injection pump calibration is done by loosening the lock on the sleeve then sliding the sleeve to the left or right on each plunger to get fuel volume similarity. The results of data collection before calibration showed the volume of fuel was 26 ml, 30 ml, 30 ml, and 28 ml. Keywords: calibration, injecton pump, in-line, diesel engine
{"title":"Kalibrasi Pompa Injeksi Tipe In-Line Dalam Persamaan Volume Bahan Bakar Motor Diesel 4 Silinder","authors":"Hasrul Efendi, A. Putra, Dewi Sartika","doi":"10.36526/V-MAC.V6I1.1150","DOIUrl":"https://doi.org/10.36526/V-MAC.V6I1.1150","url":null,"abstract":"Injector is an important component in the diesel engine fuel injection system. This study aims to obtain the results of the in-line type injection pump calibration in the equation of the fuel volume of a 4 cylinder diesel motor. The research was conducted by making simple calibration equipment. Experiments were carried out for 200-300 rpm, 350-450 rpm and 550-600 rpm experimental apparatus rotation speed. Measurements are made for the volume of fuel using a measuring cup. Injection pump calibration is done by loosening the lock on the sleeve then sliding the sleeve to the left or right on each plunger to get fuel volume similarity. The results of data collection before calibration showed the volume of fuel was 26 ml, 30 ml, 30 ml, and 28 ml. \u0000 \u0000Keywords: calibration, injecton pump, in-line, diesel engine","PeriodicalId":148301,"journal":{"name":"V-MAC (Virtual of Mechanical Engineering Article)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126522377","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 : 2020-11-25DOI: 10.36526/v-mac.v5i2.1061
Henry Widya Prasetya, Dadang Sanjaya Atmaja, Ilham Satrio Utomo
Composite material is a type of new, engineered material consisting of two or more materials where the properties of each material differ from one another both in chemical and physical properties and remain separate in the final material. Composite materials have many advantages, one of which is lighter weight and corrosion resistance. In this study, composites made from glass fiber were carried out with variations in the arrangement of laminates, in order to select the material which was then applied to the manufacture of the inspection lorry body. Composites were made using the hand lay-up method. Tensile test specimens made according to ASTM D-638. The results of the tensile test show that the highest tensile strength of glass fiber composite material for the inspection lorry body is 5.45 MPa and the lowest tensile strength is 4.62 MPa. Keyword: composite, glass fiber, tensile test, inspection lorry
{"title":"Pengaruh Susunan Laminasi Serat Gelas Terhadap Kekuatan Tarik Komposit Untuk Bodi Lori Inspeksi","authors":"Henry Widya Prasetya, Dadang Sanjaya Atmaja, Ilham Satrio Utomo","doi":"10.36526/v-mac.v5i2.1061","DOIUrl":"https://doi.org/10.36526/v-mac.v5i2.1061","url":null,"abstract":"Composite material is a type of new, engineered material consisting of two or more materials where the properties of each material differ from one another both in chemical and physical properties and remain separate in the final material. Composite materials have many advantages, one of which is lighter weight and corrosion resistance. In this study, composites made from glass fiber were carried out with variations in the arrangement of laminates, in order to select the material which was then applied to the manufacture of the inspection lorry body. Composites were made using the hand lay-up method. Tensile test specimens made according to ASTM D-638. The results of the tensile test show that the highest tensile strength of glass fiber composite material for the inspection lorry body is 5.45 MPa and the lowest tensile strength is 4.62 MPa. \u0000Keyword: composite, glass fiber, tensile test, inspection lorry","PeriodicalId":148301,"journal":{"name":"V-MAC (Virtual of Mechanical Engineering Article)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127881966","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 : 2020-11-25DOI: 10.36526/v-mac.v5i2.1060
I. Utomo, Dadang Sanjaya Atmaja, Henry Widya Prasetya, F. Prasaja
The purpose of this study was to analyze the stress, displacement, and factor of safety that occurred in the valblock safety device. With the maximum load that occurs at the knuckle is 7473 N. Testing is done using Solidworks simulation software. The material used is AISI 1045 with allowable stress of 450 MPa. The results of the analysis that came out of the simulation were the maximum stress values, displacement, and the factor of safety. The maximum stress results in static conditions that the tool is only able to withstand loads up to 7000 N with a value of 3,540 , and does not exceed the maximum allowable stress limit of the tool, which is 5,300 . The result of the loading is a change in the shape of the stem, namely displacement or deflection. The results obtained from the deflection of 1.3 mm. For the results of the factor of safety, the tool is worth 1.5 at a load of 7000 N so that the valblock safety device is safe to use up to 7000 N loading. Key Words: Coupler, Valblock, Tegangan, Solidwork 2017
{"title":"Analisis Kekuatan Alat Pengaman Valblock Pada Coupler Kereta","authors":"I. Utomo, Dadang Sanjaya Atmaja, Henry Widya Prasetya, F. Prasaja","doi":"10.36526/v-mac.v5i2.1060","DOIUrl":"https://doi.org/10.36526/v-mac.v5i2.1060","url":null,"abstract":"The purpose of this study was to analyze the stress, displacement, and factor of safety that occurred in the valblock safety device. With the maximum load that occurs at the knuckle is 7473 N. Testing is done using Solidworks simulation software. The material used is AISI 1045 with allowable stress of 450 MPa. The results of the analysis that came out of the simulation were the maximum stress values, displacement, and the factor of safety. The maximum stress results in static conditions that the tool is only able to withstand loads up to 7000 N with a value of 3,540 , and does not exceed the maximum allowable stress limit of the tool, which is 5,300 . The result of the loading is a change in the shape of the stem, namely displacement or deflection. The results obtained from the deflection of 1.3 mm. For the results of the factor of safety, the tool is worth 1.5 at a load of 7000 N so that the valblock safety device is safe to use up to 7000 N loading. \u0000Key Words: Coupler, Valblock, Tegangan, Solidwork 2017","PeriodicalId":148301,"journal":{"name":"V-MAC (Virtual of Mechanical Engineering Article)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123668216","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 : 2020-11-17DOI: 10.36526/v-mac.v5i2.1040
Alfian Tri Des Wantoro, I. Qiram, Anas Mukhtar
In development planning in the mechanical industry or civil engineering construction, it is very common to use the properties of the iron rod material which can deflect or what is known as a cantilever. The factors that affect the size of the force exerted on the stem are directly proportional to the amount of deflection that occurs. In other words, the greater the load experienced by the rod, the greater the deflection. Deflection of rods plays an important role, especially in building construction, wherein certain parts such as the shaft, deflection is very undesirable. Because of deflection, the work of the shaft or construction will be abnormal so that it can cause damage to the construction or other parts. This study aims to find out how much deflection of cantilevered rods using metal plate material when given a distributed and concentrated load. Based on the data obtained from the research process, the results in this study indicate that there is an effect of slackening distance on the iron plate with 3 variations in loading. The results showed that the loading rate affected changes in the angle of deflection of the iron plate in every variation of the number of plates used. The greatest effect occurred in the plate variation size of 0.8 mm with a loading level of 3 kg, namely 3.64 x 10-5 and the smallest effect on plate variations was 1.8 mm with a loading rate of 3 kg, which was 0. The results showed that the loading rate was spread across 3 plate variations. with a load of 3 kg spread over 3 points with a distance of 15 cm from point 1 to point 3. The biggest deflection effect occurs in plate variations of 0.8 mm which is 3.64x10-5 and the smallest effect on plate variations is 1.8 mm with the same load of 0.
{"title":"Pengaruh Beban Tersebar dan Terpusat Terhadap Lendutan (Cantilever) Batang Besi","authors":"Alfian Tri Des Wantoro, I. Qiram, Anas Mukhtar","doi":"10.36526/v-mac.v5i2.1040","DOIUrl":"https://doi.org/10.36526/v-mac.v5i2.1040","url":null,"abstract":"In development planning in the mechanical industry or civil engineering construction, it is very common to use the properties of the iron rod material which can deflect or what is known as a cantilever. The factors that affect the size of the force exerted on the stem are directly proportional to the amount of deflection that occurs. In other words, the greater the load experienced by the rod, the greater the deflection. Deflection of rods plays an important role, especially in building construction, wherein certain parts such as the shaft, deflection is very undesirable. Because of deflection, the work of the shaft or construction will be abnormal so that it can cause damage to the construction or other parts. This study aims to find out how much deflection of cantilevered rods using metal plate material when given a distributed and concentrated load. Based on the data obtained from the research process, the results in this study indicate that there is an effect of slackening distance on the iron plate with 3 variations in loading. The results showed that the loading rate affected changes in the angle of deflection of the iron plate in every variation of the number of plates used. The greatest effect occurred in the plate variation size of 0.8 mm with a loading level of 3 kg, namely 3.64 x 10-5 and the smallest effect on plate variations was 1.8 mm with a loading rate of 3 kg, which was 0. The results showed that the loading rate was spread across 3 plate variations. with a load of 3 kg spread over 3 points with a distance of 15 cm from point 1 to point 3. The biggest deflection effect occurs in plate variations of 0.8 mm which is 3.64x10-5 and the smallest effect on plate variations is 1.8 mm with the same load of 0.","PeriodicalId":148301,"journal":{"name":"V-MAC (Virtual of Mechanical Engineering Article)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121602618","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 : 2020-11-17DOI: 10.36526/v-mac.v5i2.1039
Asrul Ainun Najah, I. Qiram, Dewi Sartika
Noise is something that can be annoying. A silencer is a tool to reduce unwanted sound. This study aims to obtain the matrix characteristics of the fiber arrangement pattern on sound attenuation and the ratio of the composite material mixture. The method used in this research is to vary the ratio of flinkote oil mixtures 70%: 30%, 60%: 40%, 50%: 50%, as well as variations in the matrix pattern of coconut fiber composition with parallel matrices, straight oblique cross, how to make composites with how to spray flinkote oil onto the fibers using a spray gun. The analysis of the research is the reduction of the sound produced. The ratio of the mixture and the matrix of the fiber arrangement pattern affects the resulting sound reduction value. The results showed that the flinkote oil mixture ratio of 60%: 40% resulted in the highest reduction value of 4.96%, for the lowest results found in the ratio of flinkote oil mixture 50%: 50% fiber with a noise reduction value of 4.24%. The results of the analysis show that the ideal mixture occurs in composites of 60%: 40%, so that the flinkote oil can bind the fibers sufficiently and the composites are porous, in the 50%: 50% composites there are strains because the flinkote oil is unable to bind the fibers. In the fiber arrangement pattern matrix, there is the highest noise reduction value in the parallel matrix, namely 4.96%, for the lowest result is in the straight-sloping matrix with a reduced value of 3.90%, the analysis results in the parallel matrix have good noise wave propagation, because In the parallel matrix there is no wave interference phenomenon, resulting in parallel propagation of noise waves, in the straight-sloping matrix there is an interaction phenomenon between incoming waves and waves called interference so that noise waves increase and result in a low noise reduction level.
{"title":"Pengaruh (Matrik) Pola Susunan Serat Terhadap Karakterisktik Peredam Suara Berbahan Sabut Kelapa","authors":"Asrul Ainun Najah, I. Qiram, Dewi Sartika","doi":"10.36526/v-mac.v5i2.1039","DOIUrl":"https://doi.org/10.36526/v-mac.v5i2.1039","url":null,"abstract":"Noise is something that can be annoying. A silencer is a tool to reduce unwanted sound. This study aims to obtain the matrix characteristics of the fiber arrangement pattern on sound attenuation and the ratio of the composite material mixture. The method used in this research is to vary the ratio of flinkote oil mixtures 70%: 30%, 60%: 40%, 50%: 50%, as well as variations in the matrix pattern of coconut fiber composition with parallel matrices, straight oblique cross, how to make composites with how to spray flinkote oil onto the fibers using a spray gun. The analysis of the research is the reduction of the sound produced. The ratio of the mixture and the matrix of the fiber arrangement pattern affects the resulting sound reduction value. The results showed that the flinkote oil mixture ratio of 60%: 40% resulted in the highest reduction value of 4.96%, for the lowest results found in the ratio of flinkote oil mixture 50%: 50% fiber with a noise reduction value of 4.24%. The results of the analysis show that the ideal mixture occurs in composites of 60%: 40%, so that the flinkote oil can bind the fibers sufficiently and the composites are porous, in the 50%: 50% composites there are strains because the flinkote oil is unable to bind the fibers. In the fiber arrangement pattern matrix, there is the highest noise reduction value in the parallel matrix, namely 4.96%, for the lowest result is in the straight-sloping matrix with a reduced value of 3.90%, the analysis results in the parallel matrix have good noise wave propagation, because In the parallel matrix there is no wave interference phenomenon, resulting in parallel propagation of noise waves, in the straight-sloping matrix there is an interaction phenomenon between incoming waves and waves called interference so that noise waves increase and result in a low noise reduction level.","PeriodicalId":148301,"journal":{"name":"V-MAC (Virtual of Mechanical Engineering Article)","volume":"24 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116110749","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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