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Andi Adriansyah
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Fakultas Teknik Universitas Mercu Buana Jl. Raya Meruya Selatan, Kembangan, Jakarta 11650 Tlp./Fax: +62215871335
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Sinergi
Published by Universitas Mercu Buana
ISSN : 14102331     EISSN : 24601217     DOI : https://dx.doi.org/10.22441/sinergi
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering
SINERGI is a peer-reviewed international journal published three times a year in February, June, and October. The journal is published by Faculty of Engineering, Universitas Mercu Buana. Each publication contains articles comprising high quality theoretical and empirical original research papers, review papers, and literature reviews that are closely related to the fields of Engineering (Mechanical, Electrical, Industrial, Civil, and Architecture). The theme of the paper is focused on new industrial applications and energy development that synergize with global, green and sustainable technologies. The journal registered in the CrossRef system with Digital Object Identifier (DOI). The journal has been indexed by Google Scholar, DOAJ, BASE, and EBSCO.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 395 Documents
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COMPUTATIONAL PREDICTION OF A PROPELLER PERFORMANCE IN OPEN WATER CONDITION Ahmad Fitriadhy; N. Amira Adam; CJ. Quah
SINERGI Vol 24, No 2 (2020)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (935.806 KB) | DOI: 10.22441/sinergi.2020.2.010

Abstract

In presence of hydrodynamics phenomena occur surrounding propeller evidently affects on accuracy’s prediction of thrust, torque and its efficiency. To achieve the objective, a Computational Fluid Dynamics (CFD) simulations approach is then proposed to obtain a reliable prediction of the thrust (KT), torque (KQ) and efficiency (η) coefficients in open water condition. The effect of various blade numbers associated with constant propeller revolution (RPM=1320) and pitch ratio (P/D=1.0); are performed within the range of advance ratio from 0.1J1.0. The results revealed that the increase of blade number from Z=3 to 5 was proportional with the increase of thrust (KT) and torque (KQ) coefficients; meanwhile, it was reduced the maximum efficiency (η) that possibly lead to downgrade the propeller performance. It should be noted here, the propeller with three blade numbers (Z=3) provide the highest efficiency (η) up to 78.8% at J=0.9. These CFD simulation results are very useful as a preliminary study of propeller characteristics.
ANALYSIS OF KINEMATIC FOR LEGS OF A HEXAPOD USING DENAVIT-HARTENBERG CONVENTION Luo Qingsheng; Julpri Andika
SINERGI Vol 22, No 2 (2018)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (443.044 KB) | DOI: 10.22441/sinergi.2018.2.001

Abstract

The headway of manipulator robots makes the development of a hexapod quite fast. Unfortunately, a hexapod is unstable to moving in a regular movement with some values added to programming algorithms. Various techniques implemented yet to the algorithms, like entering the degree values of each servo. However, to simplify the implementation of the algorithms, need some equations. This paper offered a hexapod control system based on Arduino that using Denavit-Hartenberg parameters to produce the equations. Various experiments have performed. Based on the experiments the offered system able to simplify the programming algorithms.
ANALISIS KINERJA ISCSI TARGET PADA WIRELESS LAN MEMAKAI STANDAR LIO Rizal Bahaweres; Tjetjep Rony Budiman; Andi Adriansyah
SINERGI Vol 19, No 1 (2015)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (782.815 KB) | DOI: 10.22441/sinergi.2015.1.005

Abstract

Semakin banyaknya kebutuhan data center maupun laboratorium komputer di Indonesia dipengaruhi oleh semakin banyaknya pengguna yang memanfaatkan komputer baik untuk bisnis maupun pendidikan. Salah satu kebutuhan utama yang tidak bisa dilepaskan dari pemakaian komputer adalah tempat penyimpanan baik berupa USB Flash Disk, HD Eksternal, HD Internal sampai HD untuk kebutuhan skala besar untuk komputer server yang berada di data center, laboratorium atau jaringan komputer. Ruang penyimpanan data atau data storage semakin berkembang dengan munculnya teknologi komputer jaringan yang memunculkan alternatif data storage berupa DAS, NAS, FC, FcoE dan iSCSI. iSCSI menggunakan standard TCP/IP protocol over Ethernet untuk menyediakan penyimpanan berbasis block. Saat ini ada 2 jenis multiprotocol SCSI Target utama di industri yaitu LIO dan COMSTAR yang menggantikan teknologi sebelumnya yaitu iET, SCST dan STGT. LIO (linux-iscsi.org) merupakan standard open source iSCSI Target untuk berbagi ruang penyimpanan di Linux. LIO mendukung storage fabrics, yaitu Fibre Channel (QLogic), FCoE, iEEE 1394, iSCSI, iSER (Mellanox InfiniBand), SRP (Mellanox InfiniBand), USB, vHost, dan lain-lain.
NUMERICAL SIMULATION ON REAR SPOILER ANGLE OF MINI MPV CAR FOR CONDUCTING STABILITY AND SAFETY Alief Avicenna Luthfie; Dedik Romahadi; Hanif Ghufron; Solli Dwi Murtyas
SINERGI Vol 24, No 1 (2020)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (687.676 KB) | DOI: 10.22441/sinergi.2020.1.004

Abstract

Spoiler attached on the rear part of a car can generate drag force and negative lift force, called downforce. This drag force can increase air resistance to the car, meanwhile, a negative lift force can improve the car’s stability and safety. Refer to many researchers, the shape and the angle of the spoiler give different aerodynamic effects and therefore give a different value of drag force and lift force. Based on these facts, this study was focused on the analysis of different spoiler angle attached to a mini MPV car to drag and lift force generated by the spoiler. The method used in this study is a numerical simulation using the Computational Fluid Dynamics (CFD) technique. The analysis was carried out at different spoiler angle and car’s speed. The spoiler angles are -20o, -10o, 0o, 10o, and 20o. The car’s speeds are 40 km/h, 60 km/h, 80 km/h, 100 km/h, and 120 km/h. Then the drag and lift force and their coefficient generated by different spoiler angles were being investigated at specified speeds. The result shows that higher spoiler angles generate higher drag and lower lift. Spoiler angles higher than 0o generate negative lift force, otherwise generate positive lift force. Therefore, to increase a car’s stability and safety, it is recommended to use a spoiler angle higher than 0o. Based on the result, it is best to use spoiler angle 10o because it generates negative lift force with -0.05 lift coefficient and 0,68 drag coefficient.
PEMODELAN DINAMIK DAN PENGENDALIAN PROSES STIRRED TANK HEATER MENGGUNAKAN SISTEM DINAMIK Abdul Wahid; I Gede Eka Perdana Putra; Ferdi Fajrian Adicandra; Agasta Prio Prasetyo; Yoga Wiranoto
SINERGI Vol 21, No 2 (2017)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (512.247 KB) | DOI: 10.22441/sinergi.2017.2.002

Abstract

Stirred tank heater digunakan dalam proses kimia untuk memanaskan fluida hingga mencapai suhu yang diinginkan. Prinsip pemanasan pada stirred tank heater adalah dengan mengalirkan fluida pemanas dalam koil atau jaket pemanas. Suhu fluida proses dijaga dengan mengendalikan laju alir fluida pemanas. Pengendalian suhu stirred tank heater dengan algoritma PID (proportional-integral-derivatif) dilakukan menggunakan model dinamik proses yang diturunkan dari persamaan neraca massa dan energi. Pemodelan dinamik dan pengendaliannya menggunakan metode sistem dinamik dengan bantuan perangkat lunak ithinkTM.  Hasil simulasinya menunjukkan bahwa pengendali yang dipasang dapat menangani perubahan setpoint dan gangguan hingga ±15% secara baik.
OPTIMIZATION OF PROCESS PARAMETERS ON TENSILE SHEAR LOAD OF FRICTION STIR SPOT WELDED ALUMINUM ALLOY (AA5052-H112) Armansyah Armansyah; Ho Hwi Chie
SINERGI Vol 22, No 3 (2018)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (238.292 KB) | DOI: 10.22441/sinergi.2018.3.007

Abstract

Optimization of the process was still the issue in manufacturing. Investigation on the process parameters that effects to the property of welded structure were necessary. In this study, the AA5052-H32 sheets of 2 mm thick were welded using friction stir spot welding (FSSW) and tested via tensile shear load test to investigate the influence of spindle speed, tool depth, and dwell time to the tensile shear load of the joints. The result shows that in every set of parameter combination, exhibit interesting influence to the tensile shear load. The effect of spindle speed of 1000 rpm shown the good property in average 18.33 KN especially at tool depth of 3.5 mm. Furthermore, the effect of tool depth brought significant effect to the tensile shear load especially at 3.5 mm for each set of spindle speed and dwell time. The set of dwell time to parameter combination had no significant effect to the tensile shear load. The good tensile shear load could be achieved in the range of 17.7-19.3 KN at 3.5 mm of plunge depth and 1000 rpm of spindle speed, where the best one was 19.3 KN at 7s of dwell time.
ANALISIS PENGUKURAN NILAI OVERALL EQUIPMENT EFFECTIVENESS (OEE) PADA PROSES PACKAGING DI LINE 2 (STUDI KASUS PT. MULTI BINTANG INDONESIA. TBK) Erry Rimawan; Agus Raif
SINERGI Vol 20, No 2 (2016)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (477.937 KB) | DOI: 10.22441/sinergi.2016.2.008

Abstract

PT. Multi Bintang Indonesia Tbk bergerak dalam bidang industri pembuatan minuman, dimana perusahaan tersebut berproduksi berdasarkan besarnya permintaan dari costumer yang merupakan kantor-kantor pemasaran yang telah tersebar berbagai daerah di Indonesia. Dalam tahap proses packaging di PT.MBI melalui dengan 3 line diantaranya racking line, canning line, bottling line. Penelitian ini bertujuan untuk mengetahui nilai overall equipment effectiveness (OEE) dan Losses yang paling berpengaruh dari six big Losses OEE yang terfokus pada peralatan atau mesin secara keseluruhan menjadi satu kesatuan yaitu pada lini Line 2, yang kemudian akan diketahui akar penyebab losses yang terjadi dari penelitian selama dilapangan. Dari hasil perhitungan overall equipment effectiveness (OEE) terdapat dua rasio yang masih kurang baik dan berada dibawah standar kelas dunia, adapun rasio tersebut yaitu avaibility sebesar 88,85% dari standar kelas dunia sebesar 90% dan performance ratio sebesar 78,51% dari standar kelas dunia sebesar 95%, sedangkan untuk quality ratio telah masuk standar kelas dunia yaitu sebesar 99,90%. Sehingga dengan demikian nilai OEE pada lini Line 2 masih berada dibawah standar kelas dunia. Pada penelitian ini hanya terdapat lima losses yang dapat diidentifikasi, dan adapun losses yang sangat berpengaruh yaitu pada Reduced Speed Losses, losses ini menyumbang nilai tingkat presentase losses terbesar yakni 19,12%, dari hasil penelitian losses ini terjadi karena adanya sistem pengawasan yang jelek (kurang baik) yang menyebabkan karyawan atau operator tidak melakukan pekerjaan sesuai ketentuan yang telah ditetapkan.
OPTIMASI PENGHEMATAN ENERGI LISTRIK PENGKONDISI UDARA MELALUI SISTEM KENDALI ON-OFF BERBASIS MIKROKONTROLER Triyanto Pangaribowo
SINERGI Vol 19, No 3 (2015)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (280.612 KB) | DOI: 10.22441/sinergi.2015.3.006

Abstract

Penghematan energi listrik merupakan langkah yang strategis, mengingat sebagian besar energi listrik yang dikonsumsi oleh objek-objek tersebut dihasilkan dari pembangkit listrik yang masih menggunakan bahan bakar fosil. Salah satu komponen yang mengkonsumsi energi listrik terbesar pada objek-objek tersebut di atas adalah mesin-mesin pengkondisi udara ruangan. Pengaturan pengoperasian mesin pengkondisi udara ruangan kebanyakan dilakukan secara manual menggunakan alat remote control. Namun sistem tersebut tidaklah efektif dan efisien  karena kendali bergantung kepada seorang atau beberapa operator untuk menghidupkan atau mematikannya. Penelitian ini bermaksud melakukan analisa penghematan energi listrik melalui sistem kendali on - off Air Conditioner (AC) menggunakan microcontroller pada ruang dosen Universitas Mercu Buana yang berukuran 9 meter x 14 meter. Sistem pengendali yang dirancang menggunakan interaksi antara sinyal informasi yang diperoleh dari sensor suhu. Diperoleh hasil setingan program yang optimum untuk menghemat energi listrik yaitu pada suhu 220 C - 240 C. AC nomor 1 dan AC nomor 2 bekerja secara On – Off bergantian selama 3 jam dengan konsumsi daya sebesar 27,8 KWH perhari.
NON-DESTRUCTIVE LEAK DETECTION IN GALVANIZED IRON PIPE USING NONLINEAR ACOUSTIC MODULATION METHOD Gigih Priyandoko
SINERGI Vol 22, No 1 (2018)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (219.544 KB) | DOI: 10.22441/sinergi.2018.1.004

Abstract

Non-destructive testing is a wide group of analysis techniques used in science and industry to evaluate the properties of a structure without causing damage to it. The main objective of this project is to carry out experiment to detect leakage in pipeline using nonlinear acoustic modulation method. The nonlinear acoustic modulation approach with low frequency excitation and high frequency acoustic wave is used to reveal modulations in the presence of leak. The pipe used in this experiment was galvanized iron pipe. The experiment is started with the experiment of undamaged specimen and followed by the experiment of damaged specimen with manually applied leak. The results obtained are being observed and the difference between the specimen without leak and with leak can be distinguished. The distance of the leak and the distance of the outlet detected is nearly accurate to the exact location which is leak at 4.0 m and outlet at 6.0 m. Therefore, the results demonstrate that leakage can be detected using nonlinear acoustic modulation, and proved the objective of distinguish the difference between the results of specimen without leak and with leak has succeeded. The damage detection process can be eased with the knowledge on the signal features.
PERANCANGAN BEJANA TEKAN (PRESSURE VESSEL) UNTUK SEPARASI 3 FASA Abdul Aziz; Abdul Hamid; Imam Hidayat
SINERGI Vol 18, No 1 (2014)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (519.645 KB)

Abstract

Perancangan bejana tekan ini menggunakan metode yang disesuaikan dengan kemajuan teknologi, dimana begitu banyak aplikasi yang digunakan dalam dunia kerja salahsatunya dengan software PV Elite. Dalam perancangan ini penulis menggunakan material untuk dinding bejana (shell) dan kepala bejana (head) SA-516 Grade 70. dengan desain tekanan = 3,1 MPa dan mempunyai dimensi panjang bejana tekan (Seamless/Seamless)= 5900 mm, dengan diameter (D) = 2140 mm dengan Corrosion Allowance = 6 mm. Dan dari perhitungan aplikasi PV Elite ketebalan shell yang didapat untuk bejana tekan tersebut adalah 30,45 mm sedangkan perhitungan manual adalah 29,84 mm. Untuk ketebalan kepala (head) bejana tekan berdasarkan perhitungan PV Elite didapat 30,18 mm sedangkan perhitungan secara manual ketebalan kepala (head) adalah 17,92 mm. Tekanan yang maksimal berdasarkan PV Elite adalah untuk Head = 5,1356 MPa dan Shell = 5,0418 MPa, sedangkan hasil dari perhitungan manual untuk Head = 1,0144 MPa dan untuk Shell = 3,9102 MPa.

Page 5 of 40 | Total Record : 395

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