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All Journal Jurnal Energi Dan Manufaktur Rotasi Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Rekayasa Mesin ROTOR: JURNAL ILMIAH TEKNIK MESIN R.E.M (Rekyasa Energi Manufaktur) Jurnal Turbo : Jurnal Program Studi Teknik Mesin Spektra: Jurnal Fisika dan Aplikasinya STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin Jurnal Elemen Jurnal Teknologi Informasi dan Pendidikan Jurnal Energi dan Teknologi Manufaktur J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Jurnal Techno Bahari J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin RESWARA: Jurnal Riset Ilmu Teknik
Gaguk Jatisukamto
Department Of Mechanical Engineering, Faculty Of Engineering, University Of Jember
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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OPTIMASI MESIN PULPER SILINDER GANDA (PUL-1K) TERHADAP KUALITAS PENGUPASAN KOPI DENGAN METODE BOX BEHNKEN DESIGN Ali, Muhammad Mukti; Hermawan, Yuni; Jatisukamto, Gaguk; Darsin, Mahros; ,, Sumarji; Hardiatama, Intan
STATOR: Jurnal Ilmiah Teknik Mesin Vol 6 No 2 (2023): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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Abstract

The expansion of plantation area increased by 74.33% with a growth rate of 1.61%, in 1980 the area of coffee plantation area was 707,464 ha, while in 2016 the area was 1,233,294 ha. The majority of the coffee cherries produced are robusta coffee cherries and grow at an altitude of 400-700 m above sea level with a temperature of 21-24ºC. A wet coffee berry skin peeler is used to separate the coffee fruit skin, the stripping quality results depend on the use of shaft rotation and the gaps of the peelers, and the gaps of the hoppers. Experimental testing method using the Behnken box design method using shaft rotation of 300 rpm, 400 rpm, and 500 rpm, gaps of the peelers 3 mm, 4 mm, and 5 mm, and 5 cm, 7 cm, and 9 cm of hopper gaps. The gaps of the hoppers has the greatest impact on the results of stripping quality with the smallest P-Value of 0.001 and the largest T-Value of -6.66. The best stripping quality results were obtained in the 6th experiment with shaft rotation of 400 rpm, 3 mm gaps of the peelers, and 5 cm hopper spacing with a stripping value of 87.5%. The predicted variant of the shaft rotation factor is 382.828 rpm, the gaps of the peelers is 3 mm, and the gaps of the hoppers is 5 cm. It is predicted that the results of the stripping quality will reach 88.16%
PERANCANGAN PROTOTYPE MEKANISME GERAKAN JARI JEMPOL UNTUK ROBOT TERAPI STROK Riyas, Nur Abdi Abdillah; Jatisukamto, Gaguk; Muttaqin , Aris Zainul; Mulyadi , Santoso; Sutjahjono , Hary
Jurnal Rekayasa Mesin Vol. 15 No. 3 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i3.1592

Abstract

Stroke is a functional disorder of the nervous system due to obstruction of blood flow to the brain. Rehabilitation is an effort to restore the function of the nervous system to a better condition than its current condition. Rehabilitation is carried out routinely by therapists with continuous physical therapy exercises. Patients can practice anywhere and anytime without depending on the therapist's schedule with technology-based rehabilitation, namely using an exoskeleton robot. This research examines the design of the human thumb finger mechanism according to anthropometric data so that it is expected to function under the working system of the human hand. Analyzing the movement of the thumb design with the help of Ansys Rigid Body Dynamics software. Analysis position with Ansys 19 R1 simulation for Rigid Body Dynamic mode. The results of the joint movement values (linkage) of the joints (interphalangeal joint, IP), MCP (metacarpophalangeal), and (carpometacarpal joint, CMC) are as follows. The (interphalangeal joint) IP angle simulation results get an angle value of -40.30°, while the CMC angle gets an angle value of 65.90° and the MCP angle gets an angle value of 71.80°. In comparison, the IP angle of the human thumb has an angle of 80-90°, the CMC angle is 43-70° and the MCP angle is 50-71°.
PENGARUH VARIASI PARAMETER WIRE-CUT EDM MITSUBISHI BA-8 TERHADAP KEKASARAN PERMUKAAN BAJA SKD 61 Putratama, Panji Hastawirata; Jatisukamto, Gaguk; Sakura, Rahma Rei; HT Prasetiyo, Dani; Zainul M, Aris
STATOR: Jurnal Ilmiah Teknik Mesin Vol 7 No 2 (2024): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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Abstract

Wire-cut EDM is a machining process used to shape precision machine components. The basic principle of wire-cut EDM is the erosion of the workpiece through spark discharges in a dielectric fluid. The spark discharge is caused by a positive electrode approaching the negatively charged workpiece, creating a short circuit that generates heat energy. Previous research was conducted with factors such as current, wire speed, on-time, and variable frequency, resulting in the best surface roughness value of 6 µm. This study aims to determine the effect of parameters such as current, voltage, and wire speed on the response of surface roughness, using the Taguchi method. The workpiece used was SKD 61 steel with 600mm x 50mm x 5mm dimensions. Cutting was done at currents of 4, 6, and 9 (Amperes), voltages of 4, 5, and 6 (Volts), and wire speeds of 8, 10, and 12 (m/m). The results of this study showed the best surface roughness value of 2.540 µm with an S/N ratio of -8.09553 at a current of 4A, voltage of 4V, and wire speed of 8m/m. After optimization, a higher S/N ratio of -8.018 was achieved. Data analysis with ANOVA showed that the effect of factors on the response yielded an F-value greater than the F-table value for all factors, indicating that all factors had a significant impact. The percentage contribution of all factors was as follows: Current at 82.46%, Voltage at 3.36%, and Wire speed at 2.53%. Keywords: wire-cut EDM, taguchi method, surface roughness.
Combustion Characteristics of Biodiesel Droplets from Nyamplung Seeds with Eggshell Catalyst Using PLX-DAQ Software Sukma, Kinanti Wilujeng; Sanata, Andi; Jatisukamto, Gaguk; Kustanto, Nurkoyim; Darsin, Mahros
Jurnal Teknologi Informasi dan Pendidikan Vol. 18 No. 1 (2025): Jurnal Teknologi Informasi dan Pendidikan
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtip.v18i1.829

Abstract

The purpose of this study was to determine the effect of eggshell catalyst (CaO) on the combustion characteristics of nyamplung oil biodiesel droplets (Calophyllum inophyllum L) on flame visualization, ignition delay, and temperature. At present, Indonesia still uses fossil fuels, namely diesel. However, over time there are alternative fuels using palm oil raw materials. However, palm oil is also used as a source of food so that it will have an impact on the scarcity of palm oil. In this study, we looked for alternative energy using nyamplung seeds (Calophyllum inophyllum L.) with catalyst weight variations of 1%, 3% and 5%. The tested droplet volume of 1 ml was placed in a type K thermocouple. The results of this study showed that the percentage of catalyst weight increased temperature and shortened ignition delay. The highest temperature and lowest ignition delay were found at a variation of 5% with the highest temperature of 679.5 °C and ignition delay of 3000 ms.
Kuat Bending Hasil Cetak 3D printing Berbahan PLA-Kuningan Darsin, Mahros; Efendi , Moh Riski; Jatisukamto , Gaguk; Basuki , Hari Arbiantara; Sutjahjono, Hary
J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Vol. 8 No. 2 (2024): J-Proteksion
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/jp.v8i2.1540

Abstract

Teknologi 3D printing merupakan sebuah alat percetakan modern yang sudah berkembang dalam dunia manufacturing. Dalam penelitian ini, dilakukan inovasi dengan menggunakan filamen yang terdiri dari PLA dan kuningan. Penentuan kombinasi parameter 3D printing menjadi kunci untuk mencapai kekuatan bending paling optimal pada hasil cetakan. Parameter yang diatur meliputi suhu nozzle temperature, print speed, dan layer height. Penelitian ini menggunakan metode Taguchi L4(23), serta pengolahan data menggunakan ANOVA. Kombinasi parameter optimal pada penelitian ini menggunakan suhu nozzle temperature 240 ⁰C, layer height 0,2 mm dan print speed 20 mm/s dengan nilai kekuatan bending sebesar 8.72MPa dan terendah 2.66 MPa. Faktor yang berkontribusi terhadap nilai bending adalah nozzle temperature dan layer height dengan kontribusi sebesar 45.29 % dan 20.91 % keduanya memiliki pengaruh yang signifikan. Kontribusi print speed sebesar 9.09 % tidak signifikan.
Analisis Konstruksi Kapal Ikan Berbahan Fiber Reinforced Plastic di Puger dengan Menggunakan Metode Elemen Hingga Arianto, Pratama Yuli; Dika Pratama, Awang; Sumarji; Andhika Putra, Alfian; Jatisukamto, Gaguk
Techno Bahari Vol 12 No 1 (2025): Maret
Publisher : Politeknik Negeri Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52234/tb.v12i1.364

Abstract

Sebagian besar kapal ikan yang digunakan oleh nelayan di Puger terbuat dari material Fiberglass Reinforced Plastic (FRP). Proses konstruksi kapal masih dilakukan secara tradisional, di mana desainnya didasarkan pada model kapal yang telah ada sebelumnya dan kemudian dimodifikasi. Akibatnya, kekuatan struktur kapal saat beroperasi di perairan Jember belum diketahui secara pasti. Oleh karena itu, diperlukan analisis untuk mengetahui batas kekuatan maksimum struktur kapal ketika membawa beban di laut. Penelitian ini dilakukan melalui studi lapangan, dengan pengukuran langsung terhadap kapal dan wawancara dengan nelayan setempat. Data yang diperoleh mencakup dimensi utama kapal, geometri, berat muatan, dan posisi muatan di atas kapal. Data tersebut kemudian digunakan dalam proses pemodelan untuk menentukan kondisi pembebanan yang dialami oleh kapal, yang selanjutnya disimulasikan menggunakan Ansys Workbench Academic 2024 Version R1. Hasil simulasi menghasilkan nilai tegangan Von Mises dan deformasi pada lima kondisi pembebanan yang berbeda. Tegangan ekuivalen yang dihasilkan berturut turut untuk kondisi pembebanan 1 hingga 5 adalah sebesar 3,617 MPa, 2,8763 MPa, 2,8198 MPa, 3,4382 MPa, dan 3,2877 MPa. Sementara itu, deformasi yang dihasilkan untuk masing-masing kondisi adalah 0,41003 mm, 0,18602 mm, 0,17995 mm, 0,35096 mm, dan 0,30843 mm. Hasil penelitian menunjukkan bahwa tegangan ekuivalen tertinggi terjadi pada kondisi pembebanan pertama, yaitu sebesar 3,617 MPa, yang masih berada di bawah tegangan izin material sebesar 9,46 MPa. Hasil dari penelitian ini menunjukkan bahwa konstruksi kapal ikan berbahan Fiberglass Reinforced Plastic (FRP) yang dianalisis memenuhi syarat kekuatan struktural berdasarkan batas tegangan yang diizinkan. Kata Kunci: Kapal Penangkap Ikan, Fiber Reinforced Plastic, Metode Elemen Hingga, Tegangan Maksimum
PERANCANGAN PROTOTYPE MEKANISME GERAKAN JARI JEMPOL UNTUK ROBOT TERAPI STROK Riyas, Nur Abdi Abdillah; Jatisukamto, Gaguk; Muttaqin , Aris Zainul; Mulyadi , Santoso; Sutjahjono , Hary
Jurnal Rekayasa Mesin Vol. 15 No. 3 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i3.1592

Abstract

Stroke is a functional disorder of the nervous system due to obstruction of blood flow to the brain. Rehabilitation is an effort to restore the function of the nervous system to a better condition than its current condition. Rehabilitation is carried out routinely by therapists with continuous physical therapy exercises. Patients can practice anywhere and anytime without depending on the therapist's schedule with technology-based rehabilitation, namely using an exoskeleton robot. This research examines the design of the human thumb finger mechanism according to anthropometric data so that it is expected to function under the working system of the human hand. Analyzing the movement of the thumb design with the help of Ansys Rigid Body Dynamics software. Analysis position with Ansys 19 R1 simulation for Rigid Body Dynamic mode. The results of the joint movement values (linkage) of the joints (interphalangeal joint, IP), MCP (metacarpophalangeal), and (carpometacarpal joint, CMC) are as follows. The (interphalangeal joint) IP angle simulation results get an angle value of -40.30°, while the CMC angle gets an angle value of 65.90° and the MCP angle gets an angle value of 71.80°. In comparison, the IP angle of the human thumb has an angle of 80-90°, the CMC angle is 43-70° and the MCP angle is 50-71°.
Karakteristik spray diesel dan campuran biodiesel nyamplung pada ruang chamber dengan variasi temperatur ambient Lukman Hakim; Nasrul Ilminnafik; Gaguk Jatisukamto; Moh. Nurkoyim Kustanto; Andi Sanata
TURBO [Tulisan Riset Berbasis Online] Vol 11 No 1 (2022): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i1.1925

Abstract

Spray characteristics have an important role in improving the quality of combustion in compression engines. This study analyzes the effect of ambient temperature on spray characteristics including spray tip penetration, spray angle and velocity of spray. The research method uses an experimental method with ambient temperature variations of 60oC, 80oC, 100oC controlled using a thermocouple and an ambient pressure of 0.3 MPa. the composition of the fuel uses diesel (diesel 100%), B30 (30% biodiesel), B100 (100% biodiesel). Image recording using camera speed 480 fms. Based on the experimental results, the ambient temperature increases the spray angle and B100 at all ambient temperatures has a spray tip penetration, velocity of spray is lower.
Analisis Keandalan Unit Hydraulic Power Pack Berbasis Multi-Fluid Scheduled Oil Sampling: Studi Kasus Engine Perkins 6 Silinder di Industri Migas Muhammad Mukti Ali; Ryan Effendi; Yuni Hermawan; Gaguk Jatisukamto
RESWARA: Jurnal Riset Ilmu Teknik Vol. 4 No. 3 (2026): RESWARA: Jurnal Riset Ilmu Teknik, July 2026
Publisher : Lembaga Penelitian dan Pendidikan (LPP) Kalibra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70716/reswara.v4i3.576

Abstract

This study aims to analyze the reliability of a Hydraulic Power Pack unit using the Multi-Fluid Scheduled Oil Sampling (SOS) approach by evaluating the condition of engine oil, hydraulic oil, and radiator coolant. The test object is a 6-cylinder Perkins engine with over 10,000 operational hours spanning ±11 years without any history of General Overhaul (GOH). The analysis utilizes laboratory test data from SOS Trakindo Balikpapan, covering parameters such as fuel dilution, viscosity, Total Base Number (TBN), oxidation, wear metals, Particle Quantifier Index (PQI), ISO 4406 cleanliness levels, glycol concentration, nitrite levels, pH, and coolant conductivity. The results indicate that the engine oil has undergone severe degradation, characterized by an extreme fuel dilution of 11.94%, a drastic drop in viscosity to 9.807 cSt, elevated oxidation, and internal wear metal signatures, signaling a decline in lubrication system reliability. Conversely, the hydraulic oil remains within acceptable operational limits despite early-stage particle contamination (ISO Code 20/15). The radiator coolant displays stable physical and chemical properties with 36% glycol concentration, pH 7.4, and a conductivity of 2315 µS/cm, showing no signs of oil cross-contamination. Integrated multi-fluid analysis reveals that the primary degradation mechanism is confined to the engine lubrication system, while the hydraulic and cooling systems maintain operational integrity. This study demonstrates that the Multi-Fluid SOS framework offers a more comprehensive and accurate diagnostic capability for high-operating-hour oil and gas equipment compared to traditional single-fluid monitoring.
Analisis Konstruksi Kapal Ikan Berbahan Fiber Reinforced Plastic di Puger dengan Menggunakan Metode Elemen Hingga Pratama Yuli Arianto; Awang Dika Pratama; Sumarji; Alfian Andhika Putra; Gaguk Jatisukamto
Techno Bahari Vol. 12 No. 1 (2025): Maret
Publisher : Politeknik Negeri Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52234/tb.v12i1.364

Abstract

Most fishing vessels used by local fishermen in Puger are constructed from Fiberglass Reinforced Plastic (FRP). These vessels are still built using traditional methods, where the design is based on pre-existing models that are subsequently modified. As a result, the structural strength of the vessels when operating in the waters of Jember remains uncertain. Therefore, an analysis is required to determine the maximum load-bearing capacity of the vessel structure under marine operating conditions. This study involved field measurements and interviews with local fishermen to collect data on the vessel’s principal dimensions, geometry, cargo weight, and load positioning. The collected data were used to develop a structural model, which was then simulated using Ansys Workbench for Student 2024 Version R1 to analyze the loading conditions experienced by the vessel. The simulation results yielded Von Mises stress and deformation values for five different loading scenarios. The equivalent stress values obtained were 3.617 MPa, 2.8763 MPa, 2.8198 MPa, 3.4382 MPa, and 3.2877 MPa, respectively. Meanwhile, the corresponding deformation values were 0.41003 mm, 0.18602 mm, 0.17995 mm, 0.35096 mm, and 0.30843 mm. The analysis indicates that the highest equivalent stress occurred under the first loading condition, with a value of 3.617 MPa, which remains below the allowable stress limit of the material, defined as 9.46 MPa.
Co-Authors ,, Sumarji Agus Triono Ahmad Adib Rosyadi Ahmad Syuhri Ahmad Wafi Al Wafi, Adib Alfian Andhika Putra Andhika Putra, Alfian Andi Sanata Andreas Maulana Irsabudi Aris Zainul Muttaqin Artoto Arkundato Asdin Amroe An Nafi Asrofi, M Awang Dika Pratama Ayu Martha Lestari Azmi Saleh Cahya Alief Prasetyo Cahya Alief Prasetyo Catur Suko Sarwono Chatarina Umbul Wahyuni Dedi Dwilaksana Digdo Listyadi, Digdo Dika Pratama, Awang Dwi Djumhariyanto Edoward Ramadhan, Mochamad Efendi , Moh Riski Gembong Djoni Putranto Hadi Paramu Hanifudin, Muhamad Hari Arbiantara Basuki Hary Sutjahjono HT Prasetiyo, Dani Ibrahim Hanif Indra Surya Iwanata Intan Hardiatama Irsabudi, Andreas Maulana Iwan Sugihartono Kustanto, Nurkoyim Lukman Hakim Lukman Hakim M Noer Ilman M. Noer Ilman Mahros Darsin Mahros Darsin Maijuansyah Maijuansyah Mirna Sari Mirna Sari Misto Misto Misto Mochamad Asrofi Moh. Nurkoyim Kustanto Muhammad Dimyati Nashrullah Muhammad Mukti Ali Muhammad Mukti Ali Muhammad Yusuf Mulyadi , Santoso Naafi' ul Amri Nasrul Ilminnafik Pradana, Yanuar Rohmat Aji Pradiza, Revvan Rifada Prakoso, Muhammad Ihsan Pratama Yuli Arianto Priyo Tri Iswanto Puranggo Ganja Widtyo Putratama, Panji Hastawirata Rachmad Dwi Fitriansyah Rahma Rei Sakura Rika Dwi Hidayatul Qoryah Riko Septian Riko Septian Riyas, Nur Abdi Abdillah Robertus Sidartawan Rony Agista Apriansyah Ryan Effendi Salahuddin Junus Salahuddin Junus Santoso Mulyadi Sholiha, Zhahra Hanif Siti Nur Rahmah Anwar Solichin Solichin Sugiantoro Sugiantoro Sugiantoro, Sugiantoro Sukma, Kinanti Wilujeng Sumarji Sumarji Susilo, Bili Darnanto Syah, Khalif Ardian Trifiananto, Muhammad Viktor Malau Viktor Malau Wenny Maulina Widyaningrum Febriolita yudan priyo anggono Yuni Hermawan Yuni Hermawan Zainul M, Aris