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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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RANCANG BANGUN MESIN IMPAK CHARPY DAN KESAN PERTAMANYA TEHADAP MINAT BELAJAR MAHASISWA PADA MATAKULIAH ILMU BAHAN Munib Rosadi, Mohammad; Basuki; Samudra, Agung; Hasbi Ramadani, Ali
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 4 No 1 (2019)
Publisher : Universitas Hasyim Asy'ari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33752/reaktom.v4i1.422

Abstract

The need for measuring the mechanical properties of material in the Material Science course makes thecharpy impact machine to be immediately presented to be a supporting tool as well as a reference forstudents in carrying out impact testing. The purpose of this study was to find out how to design and createa charpy impact machine, find out how to work and analyze performance based on the impact energyreceived by the specimen and find out the impact on student learning interest in the Materials Sciencecourse. This research is a design research that ultimately produces a product. The performance of the tooluses ten steel specimens with dimensions of 10mm x 10 mm x 55 mm indicating an average impact priceof 1,509601 J / mm2. The measurement results of the learning interest questionnaire showed an indicatorof student interest in the presence of the charpy impact testing machine in the materials science course at73.68%..Keywords: design, impact, charpy, learning interest
APLIKASI FUZZY DALAM OPTIMALISASI TRAFFIC LIGHT PERSIMPANGAN JUANDA Ramadhani, Rahma; Ummah, Imamatul; Amudi, Abdiyah; Yannuansa, Nanndo
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 4 No 1 (2019)
Publisher : Universitas Hasyim Asy'ari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33752/reaktom.v4i1.423

Abstract

Traffic Jam is a problem that often occurs in transportation problems. Juanda Junction is one of theintersections that often experience traffic jam. The causes of traffic jam arise from many things, includingthe presence of side barriers, the absence of markers so that the traffic light that works is not optimal.Based on the results of the initial survey, it was found that the duration of the green light in each pendekawas not adjusted for how many cars and motorcycles were passing. North approacher where most cars andmotorbikes are passing but get fewer duration of green lights than other approaches. This shows lessoptimal traffic light settings. The use of fuzzy method is expected to make traffic light settings moreoptimal because the old green light produced is more flexible in accordance with many cars andmotorcycles that pass through an approach. The results of the study were obtained for vehicles passingthrough the northern approacher as many as 26 cars and 177/cycle obtained manually by the green light for43 seconds and with fuzzy 45 seconds. Western approacher with many vehicles passing by 25 cars and170/cycle motorbikes received a 51-second manual green light and fuzzy 42 seconds. As well as for theeast approacher with many vehicles passing 24 cars and 168 motorcycles/cycle get the green lightmanually 53 seconds and with fuzzy 42 seconds. Key Words: Fuzzy, Junction, Traffic Light
HUBUNGAN MINAT BELAJAR, KECERDASAN EMOSIONAL DAN NILAI UAS ALAT UKUR TERHADAP HASIL BELAJAR SISWA SMK DI JOMBANG Samudra, Agung
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 4 No 1 (2019)
Publisher : Universitas Hasyim Asy'ari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33752/reaktom.v4i1.424

Abstract

The aim of this study was to determine the relationship Learning Interest, Emotional Intelligence and FinalExam Scores Measuring Devices Competency Standard Describes the Processesing of Energy ConversionEngineering Against the Students’ Learning Outcomes of SMK in Jombang.This study used quantitative descriptive approach. This research was a correlation study. The method usedfor data retrieval is using questionnaires and tests. The questionnaire used to determine students' interestsand emotional intelligence. While the test, used to determine student learning outcomes, and documentationto determine the Final exam scores measuring devices of students.Based on the results of data analysis with significance level of 5%, it can be concluded: (1) There is asignificant positive relationship between learning interest with the students’ learning outcomes of SMK inJombang. Learning interest affect student learning outcomes by 21.7%. (2) There is a significant positiverelationship between emotional intelligence with the students’ learning outcomes of SMK in Jombang.Emotional intelligence affect student learning outcomes of 25.9%. (3) There is a significant positiverelationship between the final exam scores measuring devices with the students’ learning outcomes of SMKin Jombang. Final exam scores measuring devices affect student learning outcomes by 23.2%. (4) There is asignificant positive relationship between learning interest , emotional intelligence and final exam scoresmeasuring devices together with the students’ learning outcomes of SMK in Jombang. Learning interest,emotional intelligence and value UAS measuring instrument together affect student learning outcomesamounted to 34.0%. Keywords: learning interest, emotional intelligence, final exam scores measuring devices, learningoutcomes
PENGENDALIAN PERALATAN RUMAH TANGGA MENGGUNAKAN ARDUINO UNO BERBASIS BLUETOOTH Fauzi, Ahmad; Rijanto, Tri; Kurniadi Wardana, Humaidillah
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 4 No 1 (2019)
Publisher : Universitas Hasyim Asy'ari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33752/reaktom.v4i1.425

Abstract

With increasing preoccupation of mankind it takes a smart home system innovation which is the concept of home automation control device comprising of a smartphone. Smart home system aims tofacilitate the work of humans in controlling household appliances using a smartphone. The research method used is the method of measurement of the distance to reach. On the sensor LightDependent Resistor (LDR) and method of reading the average light intensity on the morning and afternoon.A method of Passive Infrared sensor on Receaver (PIR) by detecting the distance sensitivity of humanmovement response. The results showed the distance which can be reached by a hc-05untuk bluetooth to control the lightsand the fan as far as 75 metres to condition without hindrance, while sensors LDR with an average 20.5 luxin the morning while in the evening with an average 19.5 lux, sensor PIR respond to human movement asfar as 7 meters. Keywords: Bluetooth hc-05, Smart home, Sensor Light Dependent Resistor (LDR), Infrared Sensor Receaver (PIR)
RANCANG BANGUN ALAT UJI EMISI EKONOMIS MENGGUNAKAN SENSOR GAS MQ2 DAN MQ9 BERBASIS ARDUINO Adzina Mukhlasin, Mohamad; Kholis, Nur; Eka Pramitasari, Retno
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 4 No 1 (2019)
Publisher : Universitas Hasyim Asy'ari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33752/reaktom.v4i1.426

Abstract

Exhaust emissions generated by motor vehicles are increasing as the number of motor vehiclesincreases. Carbon monoxide (CO) and Hydro Carbon (HC) is harmful substance contained in exhaustemissions. This study aims to make emission test (prototype) to measure CO and HC levels on exhaustemissions. This type of research is an experimental research with the waterfall model design method.Arduino-based emission test (prototype) with working system of CO and HC concentration on emissionwill be read by MQ2 and MQ9 sensor connected with Arduino and displayed on lcd screen in digitalnumber using C language program. Further data on the prototype is taken and compared with the dataon the gas analyzer using the T Test method. The results of testing the CO and HC levels on emissiontest equipment (prototype) with the results of testing using a gas analyzer still showed a significantdifference with the significance value of CO level readings of 0.319 and HC levels of 0.896. Keywords: exhaust emissions, MQ2, MQ9, Arduino
PENGARUH FRAKSI VOLUME SERAT TERHADAP KEKUATAN GESER KOMPOSIT BERPENGUAT SERAT IJUK (Acak-Anyam-Acak) DENGAN RESIN POLYESTER Mochamad Arif Irfa’i
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 3 No 1 (2018)
Publisher : Universitas Hasyim Asy'ari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33752/reaktom.v3i1.1230

Abstract

The many vehicle components often found as a result of their failure to receive the shear loads. The purpose of this study was to determine the effect of fiber volume fraction to the shear strength of composite reinforced sugar palm fiber (random, woven, random) with a polyester resin. Fiber volume fraction (Vf) used was in this study was 35%, 45%, 50%, 55% and 60%. The method of manufacture composite done hand lay up with a laminate consisting of random sugar palm fiber, woven sugar palm fiber and random sugar palm fiber. Dimensions of test specimens and shear testing procedures refers to the ASTM D-1037 standard. Shear testing performed three times for each test group. Macro photo performed after a shear test. Macro photo made on a fracture cross section shear test to determine the pattern of failures in the composite. The results showed that the shear strength of the composite increases with increasing fiber volume fraction. Increased shear strength was greatest in fiber volume fraction (Vf) = 45% which amounted to 9466.45 MPa, while the lowest shear strength occurred in fiber volume fraction (Vf) = 60% which amounted to 7118.67 MPa. Identification of fracture cross section shows that the pattern of failure was generally dominated by the release of the bond between the fibers with the matrix (delamination) followed by a fracture or fiber break.
PERANCANGAN SISTEM OTOMATISASI CONTROL MOTOR 3 PHASE MENGGUNAKAN BLUETOOTH BERBASIS ARDUINO UNO Syarif Moh Rofiq Al- Ghony, Subuh Isnur Haryudo, Jati Widyo Leksono
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.v4i2.1246

Abstract

The electric motor is a device that serves to transform electrical energy into mechanical energy of motion. In this case the designed control system motor 3 phase by Smartphones through bluetooth network to find out the effective range of extremity. The methods used in the form of data capture of measurement effective range the furthest that can be reached by bluetooth to activate relay SPDT and motor 3 phase. Results of testing the most effective distance of the otomasisasi control system of motor 3 phase maximum as far as 15 meters with a time of pause 0.5 seconds.
RANCANG BANGUN SISTEM PENGHITUNGAN HEART RATE MENGGUNAKAN SENSOR FINGER Ria Eksaktania, Tri Rijanto, Elly Indahwati
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.v4i2.1247

Abstract

Making heart rate module aims to obtain information module accuracy compared to standard gauge (Pulse Oxymetri). Work system which used using finger and sensor-based Arduino Uno which results are displayed on the LCD. This research uses the method by means of comparing the results of calculating heart rate on the module with the standard gauge (pulse oxymetri) conducted in 5 respondents, each of the respondents was conducted 5 times of measurement. The measurement is done by way of a coexisting between module and checklists (pulse oxymetri) on the index finger of the right and left using the finger sensor. The results of this study showed this tool be eligible to use the benchmarking measurement using Pulse with Oxymetri as much as 5 times by 5 respondents with an average error of results of 0.38%.
ANALISIS KUALITAS PRODUK KONVEKSI BERUPA SERAGAM SEKOLAH DENGAN MENGGUNAKAN METODE SIX SIGMA DI TEMPAT PRAKTIK KETERAMPILAN USAHA (TPKU) BIDANG KONVEKSI TEBUIRENG Ahmad Al Amin, Sumarsono, Nur Kholis
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.v4i2.1249

Abstract

The rapid rate of growth of technology and information in the modern era today, encourages companies to further develop their thoughts and views to maximize the goals and objectives set. The Place to Practice Business Skills (TPKU), is a business engaged in the field of convection managed by Tebuireng Boarding School. One of the most widely used convection products is the school uniform. In producing school uniforms, convection also strives to continuously improve quality by pressing the number of defects in the product. Some things that need to be done are identifying the factors that cause disability using the Six Sigma method, calculate the quality of sigma, and propose appropriate actions to control the quality of school uniforms. Six sigma is a tool of quality improvement toward the 3,4 target of failure per a million opportunities for each production. So six sigma is one of the new methods in the field of quality management aimed at quality control and improvement. By using the six sigma method, it can be seen that there are seven types of defects (CTQ) that occur in school uniform products. The two most common types of defects are: seams that are not tidy with a percentage of 51.1% and stain on uniform of 28.4%. For the quality of school uniforms produced by Tebuireng Convection is still low ie 2.95 sigma with a product defect rate as much 74830 products in one million products (DPMO). From the application of these six sigma, it can be concluded that the proposed action to be done convection to reduce the level of product defects is to focus its supervision on improving employee performance, engine performance, applicable work standards, existing facilities and infrastructure, provide motivation to work, and improve time management well.
PENGENDALIAN PERSEDIAAN BAHAN BAKU TUMPI MENGGUNAKAN METODE ECONOMIC ORDER QUANTITY (EOQ) DAN METODE PERIOD ORDER QUANTITY (POQ) DI UD. JAYA ABADI SOLUTION Erik Suyanto, Andhika Mayasari, Nur Kholis
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.v4i2.1250

Abstract

The controlling planning of raw material needs in a company is very important to keep productivity on production activityand its influence on the material procurement cost. UD. Jaya Abadi Solution is one of the company that produces various fodder from the waste of animal feed manufacturing factory. The fluctuation often happens in raw material availability for production process especially “tumpi” raw materialwhich causes the production process is not optimal. The purpose of the research is to control “tumpi” raw material availability by using Economic Order Quantity (EOQ) method and Period Order Quantity (POQ) methodand to know the different cost between the company calculation and EOQ and POQ methods caculations. The methods used in this research are Economic Order Quantity (EOQ) method and Period Order Quantity (POQ) method, these methods are expected to be able to cope the fluctuation of the “tumpi” raw material availability. Based on the result of the research using Economic Order Quantity (EOQ) method and Period Order Quantity (POQ) method yielded is EOQ value of 220 tons with total cost of Rp. 113.165.509, while POQ value is 205 tons with the total cost of Rp. 113.285.546. The different cost produced is 19 % compared to the company total cost.

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