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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 Journal of Mechanical Engineering Science and Technology 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

Gaguk Jatisukamto

Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Author-ID : 291603

Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

Published : 42 Documents Claim Missing Document

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Study on The Thermal Distortion, Hardness and Microstructure of St 37 Steel Plate Joined Using FCAW Maijuansyah Maijuansyah; Yanuar Rohmat Aji Pradana; Gaguk Jatisukamto; Solichin Solichin
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 3, No 1 (2019)
Publisher : Universitas Negeri Malang

This study sets out to investigate the distortion angle, microstructure, and hardness of St 37 steel plate weld joint produced by FCAW using the welding current of 80, 110, and 140 A. By using flat position, CO2 and E71T-1 wire were utilized as a shielding gas and electrode filler, respectively. The distortion angle measurement was done on 3 different locations of the welded sample perpendicular to weld direction by using bevel protractor. The micro Vickers tests were then applied gradually at the cross-sectional surface with a distance of 0, 5, 10 and 15 mm from weld centreline using the load of 300 g for indentation time of 15 s. A series of microstructural observations were subsequently directed on cross-sectional weld joint regions including base metal, heat-affected zone (HAZ) and weld metal to investigate the microstructural transformation. From the results, it can be observed that increasing welding current can reduce the hardness at all indentation regions as well as inducing a higher level of thermal distortion occurred on a weld joint, especially at HAZ. The microstructural transformation was also observed at sample welded using various welding current. Both heat input and cooling rate subjected to the welded sample played an important role to characterize their properties.

Characteristic Analysis of Horizontal Axis Wind Turbine Using Airfoil NACA 4712 Susilo, Bili Darnanto; Jatisukamto, Gaguk; Kustanto, Muh Nurkoyim
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 3, No 2 (2019)
Publisher : Universitas Negeri Malang

Wind energy has been developed and used as a source of electrical energy by converting wind energy into electrical energy using a generator. There are some wind turbine parameters that important for wind turbines design and model, includes the size of the rotor radius, airfoil selection, chord length, and pitch angle. The study aims to characterize the performance of a horizontal axis wind turbine using computational methods. The methods used a design and simulation of NACA 4412 and NACA 4712 airfoil using QBlade software using wind conditions in the region of Pancer, Jember. Results show that the maximum Cl value of NACA 4712 is higher than in NACA 4412. NACA 4712 has a maximum Cl value = 1.696 at α = 14o while NACA 4412 airfoil has a maximum value of Cl = 1.628 at α = 15o. NACA 4712 has the maximum value of Cl/Cd = 153 at α = 2o , while the NACA 4412 has a maximum value of Cl/Cd = 133.5 at α = 5.5o. The maximum value of Cl/Cd 4712 is higher than the NACA 4412. At 7.66 m/s of wind speed with 10% turbulence conditions, wind turbines with NACA 4712 airfoil have Cp turbine performance parameters of 0.49929 and obtain a power of 1.15 kW, while wind turbines with NACA 4412 have Cp turbine performance parameters of 0.395365 and obtained power of 0.889 kW at the same wind speed.

Characteristics Biolubricant Enriched with Nanoparticle Additives: a Review Sholiha, Zhahra Hanif; Jatisukamto, Gaguk
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 4, No 2 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v4i22020p091

The engine movement mechanism is a system composed of machine elements that contact or rub against each other between these surfaces. Surfaces that rub against each other will cause a friction force that causes wear on the surface, so it requires energy to fight the friction force. Lubricants are needed to reduce friction and reduce wear rates, where lubricants are generally made of mineral materials. Lubricants made from synthetic materials are non-renewable and cause environmental problems. The development of biolubricants as lubricating materials based on animal fats or vegetable oils is continuously being carried out. This study aims to observe the potential of biolubricants based on reviews from various previous research journals. The use of additives in biolubricants is also studied whether the addition of these additives can improve the characteristics of biolubricants. This study shows that the addition of certain additives to biolubricants can improve the characteristics of biolubricants.

The Influence of the Reference Area of Aileron on the N2XX Aircraft Using Computational Fluid Dynamics Rahmah, Siti Nur; Jatisukamto, Gaguk; Sutjahjono, Hary
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 4, No 1 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v4i12020p028

Aileron is a control surface that functions as a regulator of roll motion. The movements of the ailerons are opposite to the left and right sides. Previous studies have shown that graphs of hinge moment coefficient (Chm) values increases with increasing angle of attack. This study is to determine the aerodynamic characteristics of aileron by combining the surface area of the vane into the aileron by varying the aileron’s deflection. The calculation is performed using a numerical method in two dimensions (2D) commercial CFD simulation software. The results of the study concluded that the hinge moment coefficient for modified airfoil at δA = -20°, 0°, and 20° was -0.071, 0.078, and 0.177, respectively. These values are smaller when compared to Chm value in basic aileron that was -0.094, 0.095, and 0.201, respectively.

Failure Analysis on Titen Proto-XX Car Chasis Jatisukamto, Gaguk; Qoryah, Rika Dwi Hidayatul; Mulyadi, Santoso
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 3, No 2 (2019)
Publisher : Universitas Negeri Malang

The car chassis as a skeleton supports all loads and is the most important component. Car chassis requirements must be rigid, twisting resistant, vibration resistant and resistant to fatigue. This study aims to find the cause of the failure of the Titen Proto-XX car chassis connection. The research methodology was conducted by testing the composition of materials and structural analysis using Ansys Workbench Release 15.0 software. The conclusion of the research is that the skeletal structure material uses Aluminum AA series 1XXX with Al content greater than 99.5%, the welding ability is low, causing a failure in the welded joint. The rivet connection failure is caused by the stress concentration in the rivet holes in the plates so that the connection crack propagation occurs.

Investigation of Drag Force and Downforce on Two Racing Motorcycles in Slipstream Conditions Hanifudin, Muhamad; Jatisukamto, Gaguk; Darsin, Mahros; Kustanto, Muh. Nurkoyim; Saleh, Azmi; Prasetyono, Suprihadi; Sarwono, Catur Suko
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 9, No 1 (2025)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v9i12025052

The performance of modern racing motorcycles is greatly influenced by their aerodynamics. Slipstreaming occurs during a race when a rider closely follows another, especially on a straight track. The effect can reduce aerodynamic drag and increase the overall speed of the rider behind. This study investigates the aerodynamic effects of slipstreaming on a racing motorcycle using computational fluid dynamics. This study also considers its effect on both drag force and downforce, which affects motorcycle stability. A 3D CAD model of a racing motorcycle and a rider in a crouching position was used as the object of research. CFD simulations were carried out using the RANS Steady State solver with the k-ω-SST turbulence model. The simulations evaluated the effect of varying distances between motorcycles on slipstream performance, as well as varying motorcycle speeds. The results show the effect on drag force and downforce for the trailing motorcycle. This is due to the shielding effect of the motorcycle in front, which creates a low-pressure zone behind it. Additionally, the turbulence behind the racing motorcycle also affects its downforce. Optimizing the distance between motorcycles in the slipstream allows riders to improve overtaking performance. It also reduces adverse effects on motorcycle stability caused by the slipstream's influence on downforce. Furthermore, it can be used to develop aerodynamic modifications to racing motorcycles that can utilize the slipstream more effectively.

Co-Authors ,, Sumarji Agus Triono Ahmad Adib Rosyadi Ahmad Syuhri Ahmad Wafi Al Wafi, Adib Andhika Putra, Alfian Andi Sanata Andreas Maulana Irsabudi Aris Zainul Muttaqin Artoto Arkundato Asdin Amroe An Nafi Asrofi, M Ayu Martha Lestari Azmi Saleh Cahya Alief Prasetyo Cahya Alief Prasetyo Catur Suko Sarwono Chatarina Umbul Wahyuni Dedi Dwi Laksana Digdo Listyadi, Digdo Dika Pratama, Awang Dwi Djumhariyanto Dwi Laksana, Dedi Edoward Ramadhan, Mochamad Gembong Djoni Putranto Hadi Paramu Hanifudin, Muhamad Hary Sutjahjono HT Prasetiyo, Dani Ibrahim Hanif Indra Surya Iwanata Intan Hardiatama Irsabudi, Andreas Maulana Iwan Sugihartono Kustanto, Muh. Nurkoyim Kustanto, Nurkoyim Lukman Hakim M Noer Ilman M. Noer Ilman Mahros Darsin Maijuansyah Maijuansyah Mirna Sari Mirna Sari Misto Misto Misto Misto Moh. Nurkoyim Kustanto Muh Nurkoyim Kustanto Muhammad Dimyati Nashrullah Muhammad Mukti Ali Muhammad Trifiananto Mulyadi , Santoso Muttaqin , Aris Zainul Naafi' ul Amri Nasrul Ilminnafik Pradana, Yanuar Rohmat Aji 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 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 Sutjahjono , Hary Syah, Khalif Ardian Viktor Malau Viktor Malau Wenny Maulina, Wenny Widyaningrum Febriolita yudan priyo anggono Yuni Hermawan Zainul M, Aris

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