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Reaktom : Rekayasa Keteknikan dan Optimasi
Published by Universitas Hasyim Asy'ari
ISSN : -     EISSN : 25484095     DOI : https://doi.org/10.33752/reaktom
Core Subject : Engineering,
Automotive Engineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering
Reaktom : Rekayasa Keteknikan dan Optimasi is open access and peer-reviewed journal, published by Universitas Hasyim Asy ari, Indonesia to disseminate research results from scientists and practitioners in Engineering and Science fields. Aim and Scope: Electrical Engineering: robotics, control system, microcontroller application, telecommunication, electronics, power electronics, power engineering, power distribution, etc. Mechanical Engineering: material engineering, production, automotive, energy conversion, aerodynamic, etc. Industrial Engineering: chemical engineering, physic engineering, instrumentation and control, industrial management, manufacture, etc. Civil Engineering: structure engineering, hydrology, geotechnical, construction management, etc. (but not limited to)
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 78 Documents
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PENINGKATAN MUTU DAN KUANTITAS PRODUKSI GERABAH PADA INDUSTRI PEMBUATAN GERABAH DI MALANG JAWA TIMUR Mochamad Arif Irfa’i, Nova Kristiana, Muchlis Arif, Tri Sudarwanto
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 4 No 2 (2019)
Publisher : Universitas Hasyim Asy'ari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33752/reaktom.v4i2.1251

Abstract

The aims of this activity is the application of furnace and pottery design training to help improve the quality and quantity pottery products. The methods of implementing this activity is the implementation team analyzes the problems of the partner team (Mr. Suhartoko). The results of the analysis revealed that Mr. Suhartoko’s pottery business still used wood-burning stoves, ability to design pottery motifs (grading techniques) that are underdeveloped and marketing management that has not been managed optimally. Based on the results of discussions and request of partner teams. Then the design is carried out for the manufacture of controlled system furnaces. Training preparation to design pottery motifs (grading techniques) and marketing workshops. At the end of the activity the community partnership program was facilitated and evaluated. The results of the community partnership program activities are an increase in the quality of pottery products after using a controlled furnace system. While still using the manual furnace, the pottery produced is only made of clay after using a controlled furnace system. The pottery produced is capable of producing pottery made of ceramics. In quantity, there was an increase in the production of pottery, which were from 8-10 pottery each time it processed to 22-24 pottery. While, in terms of design, pottery motifs have started to develop and are able to selling high. The indicator is that the selling price of pottery products increases from 10 thousand rupiahs to 15 thousand rupiahs for each pottery product to 100 thousand rupiahs to 150 thousand rupiahs for each pottery product. At this time, Pottery product marketing has also begun to penetrate the gallery, hotel and café.
PERANCANGAN SISTEM PENGGERAK TRAINER TRANSMISI MANUAL 5 PERCEPATAN TOYOTA KIJANG Mohammad Munib Rosadi, Retno Eka Pramitasari, Ali Hasbi Ramadani
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 4 No 2 (2019)
Publisher : Universitas Hasyim Asy'ari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33752/reaktom.v4i2.1252

Abstract

The need for learning media in the Machine Element II course makes the transmission trainer to be immediately presented in order to become a means of supporting student learning. In a transmission trainer system a driving mechanism is needed so that the transmission can rotate. The drive mechanism must be reliable to ensure the transmission can rotate without constraints. Therefore, it is necessary to design and calculate in designing the transmission driving mechanism. The purpose of this study was to determine the design and calculation of the transmission trainer drive system. The design results show that the required motor specs are motors with 250 watts of power, driven pulley diameter 50 mm, driven pulley diameter 250 mm, distance between pulley axes is 335 mm. use v-belt type A with a length of 1175 mm. this drive system mechanism will produce a final torque of 393.01 kg.mm which is considered good because it is higher than the planned torque that is 325,85 kg.mm.
ANALISA PERBANDINGAN KEKUATAN CETAKAN PENGECORAN DUDUKAN SHOCK BREAKER SEPEDA MOTOR UKURAN 70 ×30 ×30 mm Muchammad Rizza
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 3 No 1 (2018): Mei 2018
Publisher : Universitas Hasyim Asy'ari

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Abstract

Aluminium merupakan logam non-ferrous yang paling banyak digunakan di dunia, dengan pemakaian tahunan sekitar 24 juta ton. Oleh karena itu membutuhkan cetakan yang kuat dan tahan lama dalam industri pengecoran logam. Tujuan dari penelitianini adalah untuk mengetahui pengaruh penggunaan material baja St42 terhadap kekuatan tarik dan modulus elastisitas pada cetakan pengecoran aluminium dudukan shockbreakersepeda motor ukuran 70 x 30 x 30 mm dengan variabel pemanasan (Heat Treatment) pada bagian coredan cavity pada temperatur 650°C dan 1020°C. Cara melakukan pembuatan yang meliputi pembuatan pengefraisan, pengeboran, perlakuan panas, penggerindaan dan kerja bangku. Hasil berupa pencetak alumunium dengan produk dudukan shock breakersepeda motor ukuran 70x30x30 mm serta rumusan yang telah disebutkan dengan mengetahui perbandingan kekuatan cetakan. Metode penelitian yang dilakukan adalah dengan penelitian eksperimen merupakan penelitianyang dilakukan untuk mengetahui pengaruh pemberian suatu treatment atau perlakuan terhadap subjek penelitian untukmengetahui jenis penelitiannya, mempersiapkan alat dan bahan ,diagram alir, teknik pengumpulan bahan, variabel penelitian, dan teknik analisis data dari metode penelitian hasilnya adalah data uji tarik yang kemudian dianalisa tegangan tarik maksimum, regangan dan modulus elastisitas.Hasil dari analisa tersebut adalah kekuatan tarik maksimum spesimen het treatment dengan temperatur 650°C = 450.4 N dan temperatur 1050°C = 469.2 N dan modulus elastisitas pada temperatur 650°C = 3217.14 N/dan temperatur 1050°C = 2234.24 N/. Sehingga spesimen yang di heat treatmentdengan tempertur 650°C memiliki kekuatan tarik lebih rendah dari spesimen yang di heat treatmentdengan temperatur 1050°C, dan spesimen yang di heat treatment dengan temperatur 650°C memiliki modulus elastisitas yang lebih besar dari pada spesiment yang di heat treatmentdengan temperatur 1050°C hal ini disebabkan karena adanya perbedaan temperatur heat treatment sehingga mempengaruhi struktur kimia pada spesimen tersebut.
ANALISA KEKUATAN TARIK PADUAN ALUMINIUM DENGAN SILIKON PADA DUDUKAN SHOCKBREAKERUKURAN 70 X 30 X 30 mm Risalah Zakaria
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 3 No 1 (2018): Mei 2018
Publisher : Universitas Hasyim Asy'ari

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Abstract

Shockbreaker holder is an additional component in the vehicle that serves as enhancer to fit the posture or as desired from the user.Shockbreaker stands are made from aluminum base material combined with other alloys to improve the mechanical properties of aluminum. So it is necessary to do research using experimental method there is Aluminum-Silicon alloy.The purpose of this researchis to know the tensile strength and strain value on aluminium castings with silicon on shockbreaker stand with variation of silicon 5%, 10%, and 15%. The results of this study showed that tensile strength and strain obtained from 5% silicon alloys were 91.64 MPa and 0.0035%. While the tensile strength and strain obtained from 10% silicon alloys were 109.06 MPa and 0.0038%. While the tensile strenght and strain obtained from 15% silicon alloys are 135.56 MPa and 0.0049%. The best result of aluminium siliconalloy with 15% addition of silicon obtained tensile strength is 135.56 MPa and strain value is 0.0049%
ANALISA KEKUATAN TARIK PADUAN ALUMINIUM DENGAN MAGNESIUM PADA DUDUKAN SHOCKBREAKERUKURAN 70 X 30 X 30 mm Zamah Syari
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 3 No 1 (2018): Mei 2018
Publisher : Universitas Hasyim Asy'ari

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Abstract

Aluminium is a Non-Ferrous metal that is widely used in casting process, aluminium in pure state has poor mechanical properties, so it is necessary to add other alloying elements to improve its mechanical properties. so it is necessary to do research usingeksperimental method on aluminium-magnesium. The purpose of the research is to know the stress and strain with tensile test on aluminium-magnesium alloy to be used as material on motorbike shockbreaker holder with addition magnesium 3%, 5% and 7%. Tensiletest results show the mecanical properties of aluminium with The addition of magnesium elementer. The stress values of alloy of Al-Mg 3%, AlMg 5% and Al-Mg 7% were 161,15 MPa, 142,04 MPa And 91, MPa and 91,28 MPa respectively. And value of strain on alloys Al-Mg 3%, Al-Mg 5% and 7% is 0,05, 0,03 and 0,02. The stress and strain values can be seen diffferently on each test, The stress and strain values will decrease.
DIVERSIFIKASI MIE SEHAT DENGAN BERBAHAN BAKUTEPUNG TERIGU DAN CAMPURAN TEPUNG BEKATUL Ali Hasbi Ramadani,
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 3 No 1 (2018): Mei 2018
Publisher : Universitas Hasyim Asy'ari

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Abstract

Noodles made from wheat flour and rice bran are healthy foodsthat can be developed as a form of new business in the field of culinary, so as to strengthen the economic resilience of the community. The purpose of this researchwas to determine the physical characteristics of healthy noodles made from raw wheat flour and rice bran flour mixture,as well as taste trials on customer satisfaction. The research method used in this study using the experimental method which is thentested to 40 respondents. The results show that the most feasible in the production is 95% flour mixture and 5% Bekatul flour get the result of soft and soft dough as well as ordinary noodles, when inserted into the roll machine and noodle printers are good results and can be produced well, and when cooked and in add complementary almost no different from the noodle without rice bran, so it is feasible for the mass production. From the aspect kepusan customers generate 82.5% very satisfied, 17.5% Satisfied, 0% less satisfied, 0% not satisfied.
Kinerja Pencampuran Pewarna Kunyit dan Indigofera dengan Molaritas Indigo/Kunyit 0,32M/0,23M sebagai Sensitizer Pada Dye Sensitized Solar Cells(DSSCC) Basuki
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 3 No 1 (2018): Mei 2018
Publisher : Universitas Hasyim Asy'ari

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Abstract

The research is to examine the performance of solar cell with turmeric andindigo dye. Turmeric dye is obtained by extraction method while the indigo dye is obtained by fermentation method from indigofera plants. Indigofera and turmeric dyes were treated by mixing dye with indigo / turmeric molarity 0.32M / 0.23M. Characteristics of the dye are studied. The natural dye was tested with absorbance test, FTIR and cyclic voltammetry. The dye mixing was then applied to dye-sensitized solar cells (DSSCs) and then DSSC performance was tested at 0 hours. The UV-Vis results showed that the dye absorption with indigo / turmeric molarity was 0.32M / 0.23M with an absorption peak of 375 -525 nm. From the FTIR test, the dyeing function mixing group with indigo / turmeric molarity of 0.32M / 0.23M is -OH, C = Caromatic, alkane C-H, amina C-N.The result of cyclic voltammetry test showed that mixing dye with indigo / turmeric molarity 0,32M / 0,23M band gap 0,745 eV. Result from this research of solar cellefficiency is 0.038%.
STRATEGI PENANGANAN PEDAGANG KAKI LIMA DI MOJOAGUNG JOMBANG Meriana Wahyu Nugroho
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 3 No 1 (2018): Mei 2018
Publisher : Universitas Hasyim Asy'ari

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Abstract

The existence of PKL around Mojoagung Jombang fieldis considered to be the cause of traffic congestion and disturb the beauty of the city. This study aims to describe the existing area of Mojoagung jombang fieldwith the activity of street hawkers in it, as well as making the design of structuring street vendors in the field MojoagungJombang. This study uses Analytical Hierarchy Process approach, the formulation of PKL's next handling strategy described in the implementation of programs with attention to stakeholders' interests can be determined based on priority scale. The results obtained from the AHP approach, among others: criteria of spatial factors have the highest importance of importance that is with the weight of 0.359 (35.9%) and then followed by public order factor with the weight of 0.226 (22.6%), economic factor with weight 0.178 (17,8%), social factor with weight 0,148 (14,8%) and last environmental factor with weight of 0,089 (8,9%).
PENGGUNAAN GRAF DALAM PENJADWALANPERKULIAHANTEKNIK ELEKTRO UNIVERSITAS HASYIM ASY’ARI Nanndo Yannuansa
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 3 No 1 (2018): Mei 2018
Publisher : Universitas Hasyim Asy'ari

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Abstract

Pembuatan jadwal merupakan salah satu kegiatan tertentu yang wajib dilakukan sebelum aktivitas dimulai, dan salah satu metode pembuatan jadwal bisa menggunakan metode pewarnaan graf. Pewarnaan graf merupakan metode pemberian warna yang dipresentasikan sebagai bilangan terurut mulai 1 ataudengan menggunakan warna-warna tertentu pada suatu objek di graf. Objek tersebut dapat berupa simpul, sisi dan wilayah ataupun kombinasi ketiganya. Pewarnaan sisi sebuah graf merupakan teknik mewarnai pada garis (edge)sehunggasetiap garis(edge)yang betemupadasuatutitik yang sama berbeda warna.Penulisan ini lebih memfokuskan dalam membahas penerapan pewarnaan sisi untuk mendeteksi masalah penjadwalan kuliah.
PENGARUH PERIKLANAN PRODUK MARASAKE SARI BUBUKKEDELAI INSTAN TERHADAP KEPUTUSAN PEMBELIANWARGA JAMAAH TATANAN WAHYU (JATAYU)PADA UPT. MAKARTI POMOSDA Nur Hanifah
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 3 No 1 (2018): Mei 2018
Publisher : Universitas Hasyim Asy'ari

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Abstract

In companies large and small, advertising is very important, especially to attract consumers to make purchasing decisions of the company's products and retain the company's customers so that in this case advertising becomes one of the spearhead of marketing for the company. With this researcher want to know how big influence of product advertisement to consumer purchase decision. In conducting this research, researchers used quantitative research methods. The sample used is accidental sampling on the citizens of the Jamaah Revelation Order (JATAYU). The data collection technique is done through the distribution of questionnaires. Testing Likert scale to determine the effect of advertising on consumer purchasing decisions. By using Spearman Rank coefficient obtained rs value of 0.071. This shows that the value of rs has a very weak relationship between variable X (advertising) with variable Y (purchase decision). The magnitude kd of 0.5% of the rest of 99.5% influenced by other variables that are not measured in this study. Based on the calculation of t test analysis with significance level of 5%, obtained t arithmetic of 0.087 and t table of 0.1510. This shows that t arithmetic <t table, so Ho accepted means there is no significant influence between variables X (advertising) with variable Y (purchase decision).

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