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All Journal Jurnal Teknoin Jurnal Teknik ITS Jurnal Sains dan Seni ITS The International Journal of Accounting and Business Society ROTOR: JURNAL ILMIAH TEKNIK MESIN Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Journal of Robotics and Control (JRC) Teknomekanik JMES The International Journal of Mechanical Engineering and Sciences Mechanical Engineering for Society and Industry Sewagati
I Made Londen Batan
Departemen Teknik Mesin Institut Teknologi Sepuluh Nopember
Aerospace Engineering Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Design of a Patient Wrist Rehabilitation Device with Servo Motor Drive Lukman Yassir Amali; I Made Londen Batan
JMES The International Journal of Mechanical Engineering and Sciences Vol 4, No 2 (2020)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25807471.v4i2.7836

Abstract

Stroke represents a condition that occurs when the blood supply to the brain is interrupted or reduced due to a blockage (ischemic stroke) or rupture of a blood vessel (hemorrhagic stroke). A person who suffers a stroke will have a brain disorder that causes him/her unable to carry out activities like other healthy people. In general, stroke sufferers have paralysis in several parts of the body, like the hands, feet, and even the face. With technological developments in this era, stroke can be healed in various ways that have been developed by health experts. Healing can be referred to the treatment result for blocked or damaged blood vessels. However, the sufferer’s paralysis cannot return to the normal condition immediately, so it requires therapy or exercises to stimulate the muscles in the hands, feet, or face. This study focuses on developing a therapeutic device on the wrist that has a swivel joint. To design the wrist rehabilitation device with servo motor drive, some researches about existing products need to be reviewed. From that, a list of requirements is compiled, which is used for designing the concept of a wrist rehabilitation device. It is expected that an automatic wrist rehabilitation device can help post-stroke patients undergo the rehabilitation process.
Pemanfaatan Mesin Dehidrator Berbasis Mikrokontroler untuk Mengurangi Kadar Air Madu di Desa Kauman, Tulungagung Latifah Nurahmi; Dinny Harnany; M. Khoirul Effendi; Arif Wahjudi; I Made Londen Batan; Suhardjono; Sampurno; Fahmi Mubarok
Sewagati Vol 7 No 3 (2023)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6900.621 KB) | DOI: 10.12962/j26139960.v7i3.512

Abstract

Desa Kauman, Tulungagung, termasuk daerah penghasil madu di Jawa Timur. Namun, para peternak madu masih banyak mengalami kendala dalam mengurangi kadar air dalam madu karena masih menggunakan metode konvensional. Tim Pengabdi ITS bersama dengan mitra UMKM Madu AG bekerja sama merancang mesin dehydrator madu. Kemudian, mesin tersebut diberikan kepada peternak lebah di Desa Kauman. Hal ini bertujuan agar para peternak dapat memanfaatkan mesin dehydrator madu untuk meningkatkan produktivitas produk madu. Syarat madu yang baik harus memilik kadar air tidak lebih dari 22%. Mesin dehydrator madu yang dirancang dalam kegiatan ini mampu mengurangi kadar air hingga 10% dari kadar air dari sebelumnya. Hal ini diharapkan dapat membantu peternak lebah untuk menghasilkan madu dengan kualitas yang lebih baik.
Optimization of 3D Printing Parameter Process for Product Tensile Strength from PLA Materials Using the Taguchi Method I Made Londen Batan; Arleta Listiyana Chandradewi; Arif Wahjudi; Dinny Harnany
JMES The International Journal of Mechanical Engineering and Sciences Vol 7, No 2 (2023)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25807471.v7i2.16985

Abstract

Three-dimensional printing or 3D Printing is one of the revolutionary machines in addictive manufacturing techniques to create three-dimensional objects with complex structures. Until now there are many techniques in 3D printing, one of which is Fused Deposition Modeling (FDM), which is currently widely used because of its ease and low operational costs. However, in the printing process, there are important things that must receive attention, namely the process parameters. Because this is what really determines the quality of the printout. In this research, an analysis of the effect of process parameters such as: infill rate, infill pattern, extrusion temperature and layer thickness were carried out on the tensile strength of the printed product. The method used is the Taguchi method with the Orthogonal Array L 9 (3 4) experimental design. Three tensile test specimens were printed for each variation using a Cubic Chiron 3D printer, so a total of 27 specimens were printed. All specimens were tensile tested according to ASTM D638 standard, the results were analysed based on the average value and signal to ratio (SNR) value and their significance by analysis of variance (ANOVA). The results of the analysis show that the infill rate, infill pattern and layer thickness have a significant effect on the tensile strength of the printing results. The optimal value of the tensile strength is 56,876 MPa, occurs in the concentric pattern with an infill rate of 90%, and a layer thickness of 0.2 mm. From the confirmation test, the confidence interval values were obtained from 55,477 MPa to 58,275 MPa, meaning that the optimal predictive value was not significantly different from the confirmation test value.
Optimizing the Tuning of Fuzzy-PID Controllers for Motion Control of Friction Stir Welding Robots Marliana, Eka; Wahjudi, Arif; Nurahmi, Latifah; Batan, I Made Londen; Wei, Guowu
Journal of Robotics and Control (JRC) Vol 5, No 4 (2024)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jrc.v5i4.21697

Abstract

Friction stir welding (FSW) is defined as a solid-state welding method that is required to be accurate, especially for its motion. This requirement can be satisfied by implementing an accurate controller. The aim of this research was to develop an accurate control system based on a fuzzy-proportional integral derivative (PID) controller for parallel manipulator FSW robots. In order to achieve a higher accuracy in motion control, the tuning optimisation process for a fuzzy-PID controller was conducted using a genetic algorithm (GA) and particle swarm optimisation (PSO). The optimisation algorithms were applied to simultane-ously tune the fuzzy rules and output of the membership function from the fuzzy inference system (FIS). The PID controller was designed and tuned using a MATLAB® PID Tuner to obtain the desired response. It was then developed into a fuzzy-PID controller with Sugeno type-1 FIS with 2 inputs and 1 output. The tuning optimisation of the fuzzy-PID controller using GA and PSO was performed to achieve the global minimum integral absolute error (IAE) of the angular velocity. MATLAB® Simulink® was employed to test and simulate the controllers for three motors in the FSW robot model. The IAE values of the PID controller implemented for each motor were 0.03644, 0.04893, and 0.04893. The IAEs of the implemented fuzzy-PID-GA (output and rules) controller were 2.061, 2.048, and 2.048; of the implemented fuzzy-PID-GA (output) controller were 0.03768, 0.05059, and 0.05059; of the fuzzy-PID-PSO (output and rules) controller were 0.01886, 0.0253, and 0.02533; and of the fuzzy-PID-PSO (output) controller were 0.03767, 0.05059, and 0.05059. Therefore, the fuzzy-PID-PSO (output and rules) controller gave the most accurate results and outperformed the others. Keywords—Angular velocity, control system, friction stir welding, fuzzy-PID, genetic algorithm, motion, motor, parallel manipulator, particle swarm optimisation.
Natural fiber substitution in glass fiber-reinforced plastics: A Tensile properties simulation Wikarta, Alief; Andikusuma, Chandya; Ariatedja, Julendra; Batan, I Made Londen; Gapsari, Femiana; Khoo, Sze Wei
Teknomekanik Vol. 8 No. 1 (2025): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v8i1.33472

Abstract

Glass fiber-reinforced polymer composite materials, commonly used for industrial axial flow fan blades due to their high strength-to-weight ratio, are environmentally criticized for their non-biodegradability. This concern has prompted the investigation of eco-friendly alternatives, such as sisal and kenaf as natural fibers. Although they generally have lower mechanical properties than synthetic fibers, they offer advantages in terms of biodegradability, cost, and density. This study aims to evaluate the feasibility of partially substituting glass fiber with unidirectional natural fibers kenaf and sisal in a 14-layer GFRP axial fan blade through numerical simulation. The research employed a finite element method (FEM) to simulate tensile testing in accordance with ASTM D-638 standards. Several hybrid layer configurations were analyzed, focusing on the number and position of natural fiber layers replacing glass fiber, particularly the glass roving (GR) layers. The simulation investigated how these substitutions influence the overall tensile stress and elastic modulus of the composite blade structure. The findings suggest that this substitution does not significantly affect tensile characteristics but substantially improves the biodegradability of the composite, resulting in a more environmentally friendly material without compromising mechanical performance.
Investigation of discrepancies in isotropic material and structural properties in lattice frameworks Arifin, Ahmad Anas; Batan, I Made Londen; Bici, Michele; Wahjudi, Arif; Pramono, Agus Sigit
Mechanical Engineering for Society and Industry Vol 5 No 1 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.13018

Abstract

Lattice structures have developed as a vital component in advanced engineering applications due to their superior strength-to-weight ratios and adjustable mechanical properties. This paper focuses on examining the correlation between the isotropic features of lattices at the material level and their structural performance. The research used near-isotropic Crossing-cylinder (CC)- Body Centered Cubic (BCC) cells in various orientations and sizes. Both experimental analysis and finite element analysis were used to examine the compressive strength of the structure in each orientation. The results reveal that cell orientation is important for determining failure modes and mechanical performance at the structural level. At 0°, the lattice has higher compressive strength and energy absorption due to effective load transfer via CC-aligned struts. In contrast, higher orientations (e.g., 15°, 30°, and 45°) are dominated by collapse-type failures, indicating anisotropic behavior in an otherwise isotropic design. Smaller cell sizes have more strength at lower orientations due to their higher relative density, but larger cells perform better at higher orientations.
Sinergi Akademisi dan Petani: Implementasi Teknologi Diesel Dual Fuel (DDF) Untuk Pertanian Ramah Lingkungan Di Desa Wanar Effendi, Mohammad Khoirul; Suryo, Is Bunyamin; Izzudin, Maulana Yusuf; Batan, I Made Londen; Suhardjono, Suhardjono; Sampurno, Sampurno; Wahjudi, Arif
Sewagati Vol 9 No 6 (2025)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v9i6.9075

Abstract

Laju perkembangan Produk Domestik Bruto (PDB) sektor pertanian di Indonesia mengalami kenaikan signifikan dari 3.7 % di tahun 2021, menjadi 5.08% di tahun 2024. Beberapa faktor yang menyebabkan menurunya kontribusi sektor pertanian ini antara lain: produktivitas yang rendah karena kurangnya penggunan alat mesin pertanian (alsintan) yang lebih modern, keterbatasan akses modal dan kredit, dan masih kurang meratanya distribusi solar bersubsidi untuk mengoperasikan alsintan. Solar bersubsidi ini sangat penting untuk petani karena jika mesin pertanian berhenti beroperasi, maka akan menurunkan produksi pertanian. Salah satu solusi yang bisa diterapkan untuk mengatasi kelangkaan solar bersubsidi di sektor pertanian adalah dengan menggunakan teknologi Diesel Dual Fuel (DDF). Penggunaan DDF pada mesin diesel ini memungkinkan mesin diesel tersebut bisa menggunakan dua jenis bahan bakar (cair dan gas) secara bersamaan. Keuntungan penggunaan mesin diesel dual fuel pada mesin pertanian ini adalah sebagai berikut: untuk menurunkan biaya operasional kendaraan karena harga bahan bakar gas lebih murah, menjaga performa mesin diesel tetap optimal, menurunkan emisi gas buang kendaraan diesel saat dioperasionalkan (misal CO2, NOx dan partikel karbon).
Comparative analysis of bio-inspired and topology-optimized lattices under compressive loading Arifin, Ahmad Anas; Batan, I Made Londen; Bici, Michele; Wahjudi, Arif; Pramono, Agus Sigit
Teknomekanik Vol. 9 No. 1 (2026): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v9i1.45472

Abstract

Lattice structure design is still dominated by strut-based forms and surface-based shapes, such as triply periodic minimal surfaces (TPMS), which both exhibit overlapping limitations. Strut lattices often show strong anisotropy because their response depends heavily on cell orientation, while TPMS lattices are difficult to adjust when bounded by geometric constraints. These conditions eventually led to stagnation in the development of lattice morphology. Hybrid and topology-optimization methods have appeared as possible alternatives, but many of them still produce modified versions of classical patterns. This study examined two lattice geometries: the Pyramorph, inspired by the shape of a pyramid, and the Topomorph, generated through a topology optimization framework. Both structures were designed using a CAD unit cell patterning technique and manufactured using the FDM method, with relative densities ranging from 0.40 to 0.44. Their mechanical behaviour was examined through FEA simulation and uniaxial compression testing. The parameter variations included cell orientations of 0°, 15°, 30°, and 45°, and cell sizes of 8 mm and 12 mm within a 24 mm specimen. The Topomorph showed superior strength, reaching 15–20 MPa, while the Pyramorph reached only 7–8 MPa. The highest value, about 20.5 MPa, was obtained from the Topomorph at 0° and with an 8 mm cell size. Failure modes indicated buckling and delamination in the Pyramorph, while the Topomorph tended to collapse progressively. These findings indicate that topology optimization combined with CAD-based patterning could significantly improve lattice performance.
Co-Authors Agung Priyo Budiono Agus Sigit Pramono Alfie Adiananda Alief Wikarta Andikusuma, Chandya Anneke Endang K Ardhi, Nusantara Fathonisyam Putra Ariatedja, Julendra Arif Wahjudi Arif Wahjudi Arifin, Ahmad Anas Arleta Listiyana Chandradewi Bambang Prayogi Bici, Michele Dinny Harnany Dinny Harnany Dinny Harnany Eka Marliana Fahmi Mubarok Femiana Gapsari MF Izzudin, Maulana Yusuf Jun Surjanti Khoo, Sze Wei Lukman Yassir Amali Lukman Yassir Amali M. Khoirul Effendi Mohammad Khoirul Effendi Muhammad Ihsan Nurahmi, Latifah Nurahmi, Latifah Nurul Madinah Sampurno Sampurno Sampurno Suhardjono Suhardjono Suhardjono Suhardjono Suryo, Is Bunyamin Susila Candra Thenny Daus Salamoni Wei, Guowu