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All Journal Jurnal MEKANIKAL Turbo : Jurnal Program Studi Teknik Mesin JURNAL PENGABDI Majalah Teknik Simes TEKNOSIA Trends in Mechanical Engineering Research Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin
Zuliantoni, Zuliantoni
Department Of Mechanical Engineering, Faculty Of Engineering, Universitas Bengkulu, Bengkulu, Indonesia
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Social Sciences Transportation

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Pengolahan Limbah Plastik Berbasis Mitra Berkegiatan Lingkungan Alqa, A Sofwan F; Zuliantoni, Zuliantoni; Gunawan, Agustin
Jurnal Pengabdi Vol 1, No 2 (2018): Oktober 2018
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (833.702 KB) | DOI: 10.26418/jplp2km.v1i2.29906

Abstract

Tempat pemrosesan akhir sampah (TPA) yang dikelola oleh Pemerintah Daerah biasanya akan menjadi tujuan akhir dari perjalanan limbah padat perkotaan. Semua jenis sampah padat, baik yang laku dibeli pengepul atau tidak akan mengalir ke TPA. Keadaan ini mempersulit upaya pengelolaan sampah di TPA. Pengabdian Kemitraan Masyarakat (PKM) yang dilaksanakan di lingkungan RT 19 RW 01 Talang Kering Kelurahan Pematang Gubernur Kota Bengkulu dengan judul Pengolahan Limbah Plastik Mitra Talang Berkah memandang perlu ada sistem penyangga yang berdampak kepada pengurangan volume limbah padat yang mengalir ke TPA ke depan atau dalam jangka panjang. Yaitu dengan mengembangkan tempat pengelolaan sementara terpadu (TPST) kepada pos pengolahan limbah lingkungan yang dikelola oleh kelompok warga (Mitra) yang berkegiatan berdampak kepada lingkungan. PKM membekali Mitra dengan prosedur (metodologi) mengeluarkan limbah plastik dari dapur keluarga dan dengan prosedur (teknologi) pengolahan limbah plastik menjadi produk. Kegiatan ber-PKM membuat Mitra tidak hanya memiliki keterampilan dasar, melainkan mengembangkan bagaimana mengolah limbah plastik menjadi produk, dan yang lebih penting adalah interaksi mereka dengan warga-warga yang lain dari upaya memenuhi keperluan bahan baku. Mitra melakukan komunikasi dengan kaum ibu melalui pertemuan rutin arisan PKK. Mitra meminta dengan sangat agar para ibu dapat membantu menyediakan bahan baku bagi kegiatan pengolahan limbah plastik menjadi produk yang sesuai dengan ketentuan 3R. Limbah plastik diminta dikemas sudah terpisah dan kering, sehingga plastik dapat langsung diproses, tanpa perlu dipisahkan, dibersihkan, dan dicuci. Dengan begitu, Mitra menjadi tutor sebaya bagi para warga, kaum ibu khususnya, dalam melakukan sosialisasi 3R di lingkungan rukun tetangga (RT).
OPTIMASI PARAMETER PROSES UNTUK MENINGKATKAN PRODUKTIVITAS PEMBUBUTAN DENGAN MENGGUNAKAN METODE TAGUCHI DAN ANOVA Hoten, Hendri Van; Nanda, Andany Rizka; Zuliantoni, Zuliantoni
Jurnal MEKANIKAL Vol 8, No 1 (2017): Jurnal Mekanikal Januari 2017
Publisher : Jurnal MEKANIKAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (291.501 KB)

Abstract

Penelitian ini tentang optimasi parameter proses untuk meningkatkan produktivitas pembubutan dengan menggunakan metode Taguchi dan ANOVA. Di dalam dunia industri waktu pengerjaan dari suatu produk sangat mempengaruhi ongkos kerja dan tingkat produktivitas pemesinan, sehingga diperlukan suatu metode agar dapat mengoptimalkan tingkat produktivitas. Metode Taguchi dan ANOVA merupakan metode analisis statistik yang dapat digunakan untuk melakukan optimasi untuk mendapatkan tingkat produktivitas pemesinan terbaik. Pada penelitian ini bahan yang digunakan adalah baja ST 37 dengan proses pemesinan menggunakan mesin bubut Celtic. Hasil optimasi parameter pembubutan baja ST 37 pada mesin bubut Celtic untuk mendapatkan tingkat produktivitas terbaik adalah menggunakan putaran spindle 515 rpm, gerak makan 0.25 mm/rev, kedalaman makan 1.1 mm dan kecepatan menghasilkan geram sebesar 3.47 g/sec. Persen kontribusi pengaruh faktor level terhadap hasil pengujian didapatkan putaran spindle 52.83%, kedalaman makan 39.01 %, dan gerak makan 4.67 %.Kata Kunci: ANOVA, putaran spindel, kecepatan makan, kecepatan menghasilkan geram, kedalaman potong.
Optimasi Geometri Sudut Pahat dan Parameter Proses Terhadap Kekasaran Permukaan Dengan Menggunakan Metode Taguchi Dan ANOVA Hendri Van Hoten; Roby Syaputra; Zuliantoni zuliantoni; Nurbaiti Nurbaiti; Antonius F A Silaen
MAJALAH TEKNIK SIMES Vol 12 No 2 (2018): Majalah Teknik Simes
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2198.123 KB)

Abstract

This research is about optimization of chipping angle geometry and process parameter to surface roughness byusing taguchi and ANOVA method. In the industrial world, especially small industries in the manfacture ofproducts that reguire some roughness they do not take into account the geometry of the chisel angle and theparameters suitable for the process. To get the geometry and parameters that fit is needed a method in order laoptimize the level of surface roughness. The Taguchi and ANOVA methods are statistical analysis methods that canbe used to optimize to get the best machining roughness. In this study the materials used are St. 37 by machiningprocess using Celtic lathe. The design of the St 37 steel lathe optimization parameter on the Celtic lathe to obtainthe chisel angle and process parameters is to use a combination of the main cutting angle of 90 °, 75 °.45o; spindle rotation (rpm) 290, 370, 460; feeding motion (mm/ rev) 0.05, 0.07, 0.09 and cutting depth (mm) 0.5,0.75, 1. This parammeter is then analyzed in Taguchi software which then analyzed by using ANOVA to find out whatpercentage of contribution of influence of level factor to test result. The optimization result of this research inspindle rotation 290 rpm, feed motion 0.05 mm/ rev, cutting depth 1 mm and main cutting angle 45 °. Percentagocontribution of each parameter to surface roughness of St 37 steel is feding motion 52,30% cuting depth 19,46%spindle rotation 14,91% and cutting angle 13,32%.
Kaji sifat fisik biokomposit polylactic acid berpenguat serbuk cangkang kerang lokan Alqap, A. Sofwan F; Hestiawan, Hendri; Suandi, Agus; Zuliantoni, Zuliantoni; Farid, Muhammad
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 2 (2023): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i2.2857

Abstract

This research aimed to investigate the effect of adding lokan clam shell powder on the physical properties of polylactic acid (PLA) biocomposites. The research materials consisted of lokan clam shells obtained from the fish auction place in Pulau Baai of Bengkulu City, PLA in filament form, and chloroform. Lokan clam shells were washed with clean water, dried for 12 hours and heated at 900oC for 6 hours. The powder obtained was filtered using a 100 mesh sieve. The PLA dissolution process used chloroform for 2 hours in a closed process with a ratio of 1 g PLA to 5 ml chloroform. After that, added lokan clam shell powder and stirred for 15 minutes using a hotplate at room temperature. The biocomposite manufacturing process used a molding technique with variations in the volume fraction of lokan clam shell powder of 10%, 30% and 50%. The physical properties test includes the density test using the ASTM standard of D1622 and the water absorption test using the ASTM standard of D 570. The results of the physical properties research show that the addition of 10% lokan shell powder to the PLA biocomposite is able to reduce the density and increase the maximum water absorption by 0 .89 g/cm3 and 5.91% respectively.
PENGARUH SUSUNAN SERAT TERHADAP SIFAT FISIK DAN MEKANIK KOMPOSIT HYBRID BERPENGUAT SERAT AGEL/FIBERGLASS MENGGUNAKAN TEKNIK VACUUM INFUSION Hestiawan, Hendri; Zuliantoni; Saragih, Fernando Desfriandi
Teknosia Vol. 18 No. 2 (2024): Desember 2024
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/teknosia.v18i2.35852

Abstract

This research was motivated by using agel fiber which is easy to obtain and the effect of agel fiber which is hybridized using glass fiber using the vacuum infusion technique. This research aims to determine the effect of fiber arrangement on the mechanical and physical properties of agel/ fiberglass reinforced hybrid composite using the vacuum infusion technique. The main materials used in this research are agel fiber, fiberglass, ripoxy vinyl ester resin, methyl ethyl ketone peroxide (MEKP) catalyst and EX promoter. The process of making a specimen begins with preparing a mold from acrylic, then arranging the fibers based on predetermined variations in the arrangement. Resin, catalyst and promoter are mixed in a ratio of 400:40:1. Then stir until evenly mixed, then pour it into a container that is connected to the mold, after that the vacuum infusion process is carried out until the fiber structure in the mold is completely covered. The finished specimen is formed based on the testing standards. Bending test bending test uses ASTM D-790 standard, impact test uses ASTM D-5941 standard, tensile test uses ASTM D-638 standard, and density testing uses ASTM D-792 standard. The results of this research show that the mechanical and physical testing of the Agel-Gelas-Gelas-Gelas-Gelas-Gelas-Agel arrangement has the best bending strength, impact toughness and highest tensile strength, producing values ​​of 236.69 MPa, 62.97 kJ/ m2 and 84.1 MPa, while for testing the best density was obtained in the Gelas-Agel-Agel-Agel-Agel-Agel-Gelas G-5A-G arrangement of 1.19 gr/cm3.
HEAT TREATMENT EFFECT ON MECHANICAL PROPERTIES OF JIS SCM4 STEEL Hestiawan, Hendri; Zuliantoni, Zuliantoni; Febriyanto, Dwi
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 3 No. 2 (2019): Oktober 2019
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v3i2.9858

Abstract

It is about steel JIS SCM4 of 0.39% C, 0.28% Si, 0.77% Mn, 0.95% Cr and 0.17% Mo composition. The steel was heated to improve the mechanical properties. The heat treatment was applied on  a cylindrical specimens of 20 mm diameter at 850 C for 30 minutes. The heated samples were then quenched into media of oil, coconut oil, kerosene, water and the other was annealed. The quenched specimens were tempered at 300 °C for 30 minutes. Testing of mechanical properties was tensile and hardness tests. The lower viscosity of the quenchant gave the tensile stress and hardness higher. The highest one  was about 1779 MPa and 52 HRC of specimens quenched to water and  the highest strain was achieved as high as to 21.76% of the annealed one. The microstructure of the  quench-temper was martensitic phase, and ferritic-pearlitic of the annealed.
PENGUKURAN RUNOUT PADA POROS POMPA VERTIKAL DENGAN MEMVARIASIKAN FEEDING DAN SUDUT PENAMPANG POROS Zuliantoni, Zuliantoni
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 3 No. 1 (2019): April 2019
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v3i1.9931

Abstract

This study aims to do the machining process, measure runout using dial indicator on vertical pump shaft and examine one-way anova to see the effect of angles shaft circle section on the result of runout measurement on the pump shaft. The shaft of vertical pump was produced by a lathe machine. Calculating values the cutting speed, calculating points the theoretical machining time, and measuring grade the runout using dial indicator at the angle 0o, 90o, 180o, and 270o with 10 points of measurement. The results of measurement of runout are carried out one-way ANOVA to see the effect of angles on average runout value. The results of measurement showed at the points of A, B, C, G, I, and J describing the value of runout exceeds level of permitted tolerance but the runout values at the point D, E, F, and H showed the value accepted because they were in below  of the tolerable allowance. The one-way ANOVA show that the average runout value at four cross section angles of the pump shaft were the same. The value at different pump shaft cross section angles did not show an effect on average runout value produced.
ANALISIS VIBRASI PADA POMPA Panjaitan, Felix Budianto; Suryadi, Dedi; Zuliantoni
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 7 No. 2 (2023): Oktober 2023
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v7i2.34059

Abstract

Vibration analysis is an effective machine maintenance method by analyzing signal characteristics and vibrations so that the condition and condition of the equipment can be identified. PT. The Pertamina International Refinery - Balikpapan is one of the business units of the Pertamina Refinery Directorate whose products are distributed to the eastern part of Indonesia which is 2/3 of the Republic of Indonesia and some products are distributed to the western part of Indonesia and exported. The benefit of the vibration method is to find out damage to the pump early and to avoid more severe damage to the pump. The research method is carried out by periodically monitoring an equipment (pump) with vibration analysis to see the condition of the machine under normal conditions until damage occurs. High vibrations occur at the DE point which is lower than the NDE point. Based on measurements, high vibration occurred at the NDE pump point on January 17, 2023 in the vertical direction – speed of 27,041 mm/s, horizontal direction – speed of 28.21 mm/s, horizontal direction – casing 28,539 mm/s, and axial direction – speed of 26.89mm/s. After analyzing the spectrum, it is known that the cause of high vibration in the pump is caused by bearings that are not working properly. And also because of the Random High Frequency on the spectrum, where the frequency occurs due to damage to the bearings. The overall vibration value in the DE and NDE positions after repair is within the permissible limits based on ISO 10186.
ANALISA KOEFISIEN PRESTASI (COP) MESIN PENDINGIN PADA POWER HOUSE Witanto, Yovan; Zuliantoni; Aritonang, Jefri Fanto
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 8 No. 1 (2024): April 2024
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v8i1.36546

Abstract

Refrigeration machines that cool water are called chillers. Chillers are air conditioners with an indirect cooling system. In this indirect cooling system, the refrigeration machine does not directly cool the air in each room. The refrigeration machine cools the demin water first, then the cold demin water is used to cool the air in the room. Cold demin water as a cooling medium to reduce the temperature of a large space in the Power house. In this study, an Analysis of the Coefficient of Performance (COP) of the Cooler in the Power house was conducted. The data taken for this study were the temperature of the refrigerant when it was released from the expansion valve (T4 = 0 ° C), the temperature when it was released from the evaporator (T1 = 9 ° C) and the temperature when it was released from the compressor (T2 = 77 ° C). At T4 the enthalpy value (h4) was obtained as 204.81 kj/kg, at T1 the enthalpy value h1 was 253.025 kj/kg, at T2 the enthalpy value (h2) was 263.582 kj/kg. Thus, the coefficient of performance (COP) obtained was 4.567.
SISTEM HIDROLIK LOADING UNLOADING MEJA PELUNCUR Warsianto, Ardi; F. Alqap, A. Sofwan; zuliantoni; Hardiyanto, Martin
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 8 No. 2 (2024): Oktober 2024
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v8i2.38317

Abstract

Mortars have been developed in the field of weapons. One of the developments is the installation of a mortar on the rear of the vehicle platform which is equipped with a navigation system and combined with a computerized fire control system. To support this, a hydraulic system is needed. A hydraulic system is a form of changing or transferring power by using a conducting medium in the form of a liquid fluid to obtain greater power than the initial power released. The purpose of this practical work report is to find out how the hydraulic system works and find out the components used in the hydraulic system for loading and unloading mortar panzers. This research process starts from literature study, field observations, topic determination, data collection, results and discussion, conclusions. Based on this research, the results showed that the way the hydraulic system works, starts from the electric motor which turns on the pump, then the pump sucks the fluid in the tank, after that a fluid flow pressure is produced which then flows towards the valve, the valve will control the direction and pressure, fluid flow rate through the flexible pipe house to the working cylinder. Meanwhile, the components that make up the hydraulic system used are an electric motor with a speed of 1420 rpm, a pump with a power of 12 W and max. pressure 250 bar, manual pump, valve with max. operating pressure 210 bar and max. flow rate 63-100 L/min, flexible house pipe, fluid, pressure gauge, tank with a volume of 50 liters, filter, double acting hydraulic cylinder type accuator.
Co-Authors Agus Suandi, Agus Alqa, A Sofwan F Alqap, A. Sofwan F Antonius F A Silaen Aritonang, Jefri Fanto Aswata, Aswata Bismantolo, Putra Dedi Suryadi F. Alqap, A. Sofwan Fauzan, Ahmad Febriyanto, Dwi Gunawan, Agustin Hardiyanto, Martin Hendra, Hendra Hendri Hestiawan Hendri van Hoten Hermiyetti Hernadewita, Hernadewita Kharisma, Sunandi Muhammad Farid Mulya Juarsa Nanda, Andany Rizka Nugraha, Kurnia Nurbaiti Nurbaiti Panjaitan, Felix Budianto Prasetio, Dimas Roby Syaputra Saragih, Fernando Desfriandi Sri Ismarwanti, Sri Tarigan, Daniel Elieser Warsianto, Ardi Yovan Witanto