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All Journal IJCCS (Indonesian Journal of Computing and Cybernetics Systems) Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Jurnal Teknik Sipil dan Teknologi Konstruksi Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Teknologi Informasi Jurnal Akuntansi, Manajemen dan Ekonomi Digital (JAMED)

Murhaban

Department Of Information Technology, Faculty Of Engineering, Universitas Teuku Umar, Aceh Barat 23681, Indonesia

Author-ID : 2726932

Aerospace Engineering Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Health Professions Industrial & Manufacturing Engineering Mechanical Engineering Public Health Transportation Other

Published : 16 Documents Claim Missing Document

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Kombinasi Algoritma Kriptografi Caesar Chiper dan Vigenere Chiper Untuk Keamanan Data Muhammad Nurtanzis Sutoyo; Murhaban Murhaban
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 2, No 2 (2016): Oktober
Publisher : universitas teuku umar

Cara kerja CBR adalah dengan membandingkan kasus baru dengan kasus lama, jika kasus baru tersebut mempunyai kemiripan dengan kasus lama, maka CBR akan memberikan jawaban kasus lama untuk kasus baru. Penelitian ini mencoba untuk membangun suatu sistem Penalaran Berbasis Kasus untuk menentukan beasiswa. untuk menghitung kemiripan terlebih dahulu dilakukan proses indexing terhadap kasus lama. Hal ini dilakukan agar pada proses pencarian nilai similarity kasus baru terhadap basis kasus dapat lebih efisien karena cukup menghitung nilai similarity kasus baru terhadap data kasus yang memiliki indeks yang sama. Hasil uji coba sistem menunjukan bahwa sistem penalaran berbasis kasus ini membantu dalam menentukan usulan beasiswa. Kata kunci—Kriptografi, Caesar Chiper, Vigenere Chiper

Pengaruh dari Direct Field Component pada Ruang Akustik dengan menggunakan SEA Model Al Munawir; Herri Darsan; Murhaban Murhaban
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 5, No 2 (2019): Oktober
Publisher : universitas teuku umar

Statistical Energy Analysis (SEA) is a well-known method to analyze the flow of acoustic and vibration energy in a complex structure. This study investigates the application of the corrected SEA model in a non-reverberant acoustic space where the direct field component from the sound source dominates the total sound field rather than a diffuse field in a reverberant space which the classical SEA model assumption is based on. A corrected SEA model is proposed where the direct ﬁeld component in the energy is removed and the power injected in the subsystem considers only the remaining power after the loss at ﬁrst reﬂection. Measurement is conducted a box divided into two rooms separated by a partition with an opening where the condition of reverberant and non-reverberant can conveniently be controlled. In the case of a non-reverberant space where acoustic material was installed inside the wall of the experimental box, the signals are corrected by eliminating the direct ﬁeld component in the measured impulse response. Using the corrected SEA model, comparison of the coupling loss factor (CLF) with the theory shows good agreement.

Proposed Productivity Improvement of 1800 Press Machine Using Overall Equipments Effectiveness Murwan Widyantoro; Yuri Delano Montororing; Paduloh Paduloh; Solihin Solihin; Murhaban Murhaban
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 7, No 2 (2021): Oktober
Publisher : universitas teuku umar

Increased productivity is an effort to increase production capacity by increasing the productivity of each factor of production. PT XYZ is a company that uses sophisticated machines and facilities to produce aluminium profiles that create various needs in the form of building goods or furniture products in the form of doors, windows, partitions, frames, rolling doors, etc. One of the machines used is the 1800 press machine. This study aims to increase productivity with Overall Equipment Effectiveness (OEE) to make improvements. Based on the calculation of the Overall Equipment Effectiveness (OEE) of the 1800 press machine during January - December, the final value was 52%, this value indicates that the effectiveness of the 1800 press machine has not reached the ideal deal of 85% so that some improvements are needed. The company experiences the three most considerable losses: Breakdown Losses, Setup and Adjustment Losses, and Reduce Speed Losses, so repairs must be made to these three losses so that the 1800 press machine can achieve its best performance. Keywords— Overall Equipments Effectiveness (OEE), Six Big Losses, 1800 press machine

Sensor Magnetik Fluxgate Berkonfigurasi 2×(1000/500/1000) Mukhlizar Mukhlizar; Murhaban Murhaban
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 4, No 2 (2018): Oktober
Publisher : universitas teuku umar

Pengukuran merupakan suatu hal yang tidak dapat dipisahkan dalam kehidupan sehari-hari. Kurangnya alat ukur dengan resolusi tinggi, masih meninggalkan suatu rintangan dalam hal pengukuran medan magnetik lemah. Salah satu metode yang dapat dilakukan untuk mengukur medan magnet adalah metode fluxgate. Rentang kerja sensor fuxgate untuk mendeteksi medan magnet berkisar antara 10−10 − 10−4T baik DC maupun AC. Sensor fluxgate memiliki sensitivitasyang tinggi, stabil terhadap suhu tinggi, daya operasi yang rendah, ukuran yang kecil, serta resolusinya hingga 10 pT. Sehingga sensor fluxgate sangat cocok untuk mengukur medan magnetik yang lemah. Telah dilakukan karakterisasi terhadap sensor magnetik flusxgate dengan konfigurasi 2 × (1000/500/1000). Sensitivitas yang diperoleh sebesar 17,793 V/µT dan resolusi sensor sebesar 56,2 pT/mV. Kesalahan mutlak sensor yang diperoleh maksimum sebesar 0.0334 µT dengan kesalahan relatif sebesar 1,5%.

Karakterisasi Sensor Magnetik Fluxgate Berkonfigurasi 2 x (100/500/100) Mukhlizar Mukhlizar; Mitra Djamal; Murhaban Murhaban
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 2, No 1 (2016): April
Publisher : universitas teuku umar

Lack of measuring instruments with high resolution, still leaving a hindrance in terms of weak magnetic field measurement. One method that can be done to measure the magnetic field is fluxgate method. Fluxgate working range sensor to detect magnetic fields ranging from 10-10 - 10-4 T both DC and AC. Fluxgate sensor has high sensitivity, stable to high temperatures, low power operation, small size, and resolution up to 10 pT. So the fluxgate sensor is suitable for measuring weak magnetic fields. Has performed characterization of magnetic sensors fluxgate configuration with 2 × (100/500/100). The sensitivity obtained at 1.8 V/μT and sensor resolution of 0.56 nT/mV. Absolute error obtained sensor maximum of 0.0334 μT with a relative error of 0.85%. Keywords: Fluxgate, sensitivity, resolution, a weak magnetic field

Pengaruh Kinerja QoS Untuk Layanan VoIP Berdasarkan Jarak Dari Base Station Pada Jaringan WiMAX Murhaban Murhaban; Muhammad Bilai; Muhammad Nurtanzia Sutoyo
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 4, No 2 (2018): Oktober
Publisher : universitas teuku umar

Metode Handover digunakan untuk mempertahankan koneksi tetap terjaga. Hal tersebut berkaitan dengan performansi dikarenakan proses pengalihan kanal trafik secara otomatis pada mobile station untuk berkomunikasi tanpa terjadinya pemutusan hubungan. Faktor utama keberhasilan dalam melakukan handover terletak pada quality of service yang menyediakan tingkat jaminan layanan berbeda-beda dalam mengatur dan memberikan prioritas trafik pada jaringan seperti aplikasi voice over IP (VoIP) atau komunikasi voice memanfaatkan jaringan internet dalam permasalahan berdasarkan jarak base station.. Berdasarkan pengujian yang dilakukan untuk metode hard handover dan metode soft handover berdasarkan jarak base station menggunakan aplikasi voice over internet protocol pada mobile station. Diperoleh hasil dengan nilai jitter 0.015 ms – 0.21 ms, dan hasil delay 35.5 ms – 45.8 ms hal tersebut membuktikan bahwa pengaruh jitter dan delay terhadap handover dengan aplikasi VoIP masih dalam tahapan toleransi yang diizinka. Dan berdasarkan hasil penelitian ini jarak antara satu base station dengan station lainnya sangat berpengaruh untuk mendapatkan kulaitas layanan yang lebih baik. Kata Kunci : Handover, Jitter, Delay, VoIP, Quality of Service

Pengukuran Sound Pressure Level (SPL) dalam kabin mobil dengan menggunakan SEA Model Al Munawir; Murhaban Murhaban; Zulfan Zulfan
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 6, No 2 (2020): Oktober
Publisher : universitas teuku umar

Statistical energy analysis (SEA) is a well-known method to analyze the flow of acoustic and vibration energy in a complex structure. For an acoustic space where significant absorptive materials are present, direct field component from the sound source dominates the total sound field rather than a reverberant field, where the latter becomes the basis in constructing the conventional SEA model. Such environment can be found in a car interior and thus a corrected SEA model is proposed here to counter this situation. The model is developed by eliminating the direct field component from the total sound field and only the power after the first reflection is considered. A test car cabin was divided into two subsystems and by using a loudspeaker as a sound source, the power injection method in SEA was employed to obtain the corrected coupling loss factor and the damping loss factor from the corrected SEA model. These parameters were then used to predict the sound pressure level in the interior cabin using the injected input power from the engine. The results show satisfactory agreement with the directly measured SPL.Keywords : Statictical Energy Analysis (SEA), Sound Pressure level (SPL), DLF and CLF

Studi Numerik Pengaruh Sudut Kemiringan Sudu Terhadap Performa Turbin Angin Vertikal Tipe Savonius Masykur Masykur; Andre Kurniadi; Maidi Saputra; Murhaban Murhaban
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 7, No 1 (2021): April
Publisher : universitas teuku umar

AbstractWind energy is a renewable energy source that can be felt in everyday life. To convert wind energy into electrical energy, a tool is needed that is a wind turbine. Horizontal Axis Wind Turbine is more widely used and developed today than the vertical type wind turbine. However, the vertical turbine has several advantages compared to the horizontal wind turbine, which is that it can move without depending on the direction of the wind. This study aims to determine the effect of tilt angel of savonius turbine with blades angle 30°, 60° and 90° the turbine power coefficient and determine the optimal turbine blade results in designing a Vertical wind turbine by simulation using Computational Fluid Dynamics (CFD). The variations used are tilt angel turbine blades is 30°, 60°, 90°. The results showed that the value of Cp (Power Coefficient) of wind turbines with the addition of the blade angel 30°, 60° and 90° had a different increase. The variation the addition of turbine blade tilt angle with 90° tilt angle can increase the efficiency of the turbine blade when compared 30°, 60° blade inclination this is evidenced by wind turbine speed contour analysis, wind vortex contour analysis and turbulence intensity contour analysis shows that the turbine blade simulation results with a slope of 90° has an efficient turbine blade that is very good and effective and get optimal results.Keywords: Wind turbine, VAWT, CFD, Efficiency, Contour, Optimal, TSR, power

PERANCANGAN ALAT UKUR TINGKAT KEKERUHAN DAN KADAR pH AIR BERBASIS MIKROKONTROLER Mukhlizar Mukhlizar; Rita Hartati; Murhaban Murhaban
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 5, No 1 (2019): April
Publisher : universitas teuku umar

Peranan air dalam kehidupan dirasa sangat penting sehingga perlu mendapat perhatian khusus dalam pengelolaan dan pemanfaatan yang baik. Peningkatan pengetahuan masyarakat tentang air yang layak dikonsumsi makhluk hidup maupun tentang air bagi usaha peternakan dan perikanan, dapat dicapai salah satunya dengan pemanfaatan alat teknologi yang mendukung. Alat teknologi yang tersedia saat ini untuk mengukur tingkat kekeruhan ialah Turbidimeter dan alat untuk mengukur kadar pH ialah pH Meter. Kedua alat tersebut memiliki bentuk dan fungsinya masing-masing sehingga terkesan sangat menyulitkan dari segi efisiensi waktu dan tenaga serta biaya. Tujuan penelitian ini adalah untuk merancang alat ukur baru berbasis mikrokontroler dengan tingkat resolusi baik untuk mengukur tingkat kekeruhan dan pH air sekaligus yang lebih efisien. Alat ukur berbasis mikrokontroler ini dirancang dengan menggunakan sistem sensor fotodioda dan sensor pH. Nilai hasil uji rancangan alat ukur mikrokontroler akan dianalisa dengan menggunakan persamaan uji regresi linier sederhana terhadap nilai hasil uji alat ukur standar (turbidimeter dan pH meter). Penelitian ini diharapkan dapat memberikan kontribusi baru dalam inovasi teknologi yang dapat digunakan oleh masyarakat secara lebih mudah dan murah.Penelitian ini dilakukan di UPT Laboratorium MIPA Terpadu Universitas Teuku Umar, Jalan Alue Peunyareng Kecamatan Meureubo Kabupaten Aceh Barat mulai bulan Januari sampai dengan Agustus 2018.Berdasarkan hasil kalibrasi sensor, diperoleh nilai tegangan keluaran terhadap perubahan jarak. Nilai tegangan tersebut mengikuti persamaan sebagai hubungan nilai tegangan terhadap perubahan jarak per 1 cm dan sebagai hubungan tegangan terhadap nilai pH

PERENCANAAN PEMBANGKIT LISTRIK HYBRID VAWT DAN SOLAR CELL SECARA OTOMATIS UNTUK PENERANGAN LAMPU JALAN Herri Darsan; Dwi Prabowo; Maidi Saputra; Murhaban Murhaban
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 6, No 1 (2020): April
Publisher : universitas teuku umar

Road lighting is important for transportation activities, especially at night. The design of this Hybrid plant has a working principle that is utilizing wind gusts from a passing vehicle to turn the turbine blade and the heat of solar radiation that is absorbed through the solar panel with the sun tracking system. Parameter data that influence in the design of Hybrid Generations are variations in the number of turbine blades, turbine angle, wind speed, turbine drive rotor height, density of air and heat of solar radiation. The purpose of the problem in Designing Hybrid VAWT generating systems with the optimal angle of the turbine and Solar Cell automatically to be able to meet the electrical energy requirements for street lighting. The research method used in design through three stages, namely literature review, Technical Design and preparation of work tools and materials. The design results show that the optimal type u vertical wind turbine for toll road lighting with 3 blades and an optimal angle size of 90 0C, rotor diameter of 400 mm, rotor height of 1000 mm for average wind speed of 13.9 m / s. and Average solar heat of 28 0C with an average panel temperature of 55.3 0C using the Timer switch as a solar tracking system. The design of the plant, produces turbine power of 0.93 V to 1.17 V at 122 rpm to 214 rpm. And the solar panel produces a panel voltage of 19.59 V and an average voltage on the battery of 14 V. The stored electrical energy is able to light two LED lights with a power of 15 Watt and last for 12 hours / dayKeywords— Hybrid Power Generation, Optimal Angle, Timer Switch

Co-Authors Ahmad Ashari Al Munawir Andini, Mirna Ria Andre Kurniadi Andrisman Satria Aulia Rahman Azhar Azhar Bambang Tripoli Cut Nurrahmah dian febrianti Dwi Prabowo Edi Mawardi Faliqul Isbah Farizal, Teuku Herri Darsan Maidi Saputra Masykur Masykur Mitra Djamal Muh Nurtanzis Sutoyo Muhammad Bilai Muhammad Nurtanzia Sutoyo Mukhlizar Mukhlizar Mukhlizar Mukhlizar Mukhlizar, Mukhlizar Paduloh Paduloh Raina Parmitalia Dinda Rinaldy Rinaldy Rita Fazlina Rita Hartati Solihin Solihin Supardi, Joli Suryadi Suryadi T. M. Azis Pandria Widyantoro, Murwan Yuri Delano Regent Montororing Zakia Zakia Zulfan Zulfan

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