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All Journal Transmisi: Jurnal Ilmiah Teknik Elektro Rekayasa Mesin ROTOR: JURNAL ILMIAH TEKNIK MESIN MIX : Jurnal Ilmiah Manajemen METAL : Jurnal Sistem Mekanik dan Termal Jurnal Teknik Terapan (J-TETA) International Journal of Technology, Food and Agriculture
Aditya Wahyu Pratama
Jurusan Teknik Mesin Fakultas Teknik Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Simulasi Pengendalian Kualitas Pengaruh Deformasi Material Condenser Tube terhadap Proses Tube Expanding Waterbox Condenser (Studi Kasus di PT. BBI Pasuruan) Pratama, Aditya Wahyu; Wahyudi, Slamet; Santoso, Purnomo Budi
Rekayasa Mesin Vol 5, No 1 (2014)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (605.76 KB)

Abstract

Leakage tube after tube expanding process is still occurred in PT. BBI Pasuruan due to imperfect material deformation. Material deformation cause by a change in material form due to external forces such as temperature, friction force, compressive force, and the torque style. Deform 3D was used in this investigation to determine the material deformation processes. Taguchi method design of experiment was also used to minimize the bad cause of the poor performance is also influenced by several variables or factors on the characteristics of the desired quality. The results shows that the combination to prevent deformation of the material in the condenser tube are the friction between the tool and the tube expander of 0.787 inch, the material used is stainless steel ASTM A 249 grade 2, tube expanding process temperature optimum of 89.6 F, and expander velocity of 0.708 inches per second.Keywords: Taguchi method, design of experiment, tube expanding, material deformation
STATIC LOADING ANALYSIS ON THREE-WHEELED ELECTRIC VEHICLE FRAME USING SOLIDWORKS Azhar, Faruq Avero; Suranto, Dwi Djoko; Zain, Alex Taufiqurrohman; Karimah, Cahyaning Nur; Tyagita, Dicky Adi; Pratama, Aditya Wahyu; Sulistiono, Dety Oktavia; Nuruddin, Mochammad; Nari, Mochammad Irwan
ROTOR Vol 16 No 2 (2023)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/rotor.v16i2.44222

Abstract

Analisis menggunakan metode Finite Element menghasilkan data secara menyeluruh dan detail. Respon fisik sistem terhadap beban di beberapa titik mampu terbaca. Hal tersebut sangat berguna dibidang engineering, terutama pada kendaraan dan analisis struktur. Penelitian ini bertujuan untuk mencari nilai tegangan, regangan maksimal serta displacement dengan pembebanan statis dari struktur rangka pad akendaraan listrik roda tiga. Kendaraan listrik roda tiga yang digynakan diharapkan memiliki kapasitas beban angkut yang besar sehingga simulasi ini sangat diperlukan. Hasil simulasi menunjukkan bahwa nilai tegangan maksimum pada rangka sasis ketika diberi beban 1500 N adalah 0,0244 MPa serta 5,26×10-13 dan 1,27×10-7 untuk regangan minimum dan maksimum. Sedangkan nilai displacement yang didapat adalah 6,208×10-4 mm. Dari hasil tersebut dapat dismpulkan bahwa struktur rangka sudah cukup baik dalam menahan beban yang diberikan.
INTEGRASI PEMBANGKIT LISTRIK TENAGA SURYA 4 KW ROOFTOP GEDUNG TEKNIK POLITEKNIK NEGERI JEMBER Fahriannur, Ahmad; Rahmanto, Dedy Eko; Pratama, Aditya Wahyu; Nuruddin, Mochammad
Transmisi: Jurnal Ilmiah Teknik Elektro Vol 26, No 4 Oktober (2024): TRANSMISI: Jurnal Ilmiah Teknik Elektro
Publisher : Departemen Teknik Elektro, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/transmisi.26.4.171-175

Abstract

Energi merupakan bagian terpenting dalam kehidupan kita sehari-hari karena sebagian besar aktivitas dan kebutuhan manusia selalu membutuhkan energi. Pengembangan teknologi dibidang energi untuk pembangkit listrik menggunakan energi terbarukan di Indonesia sangat berpotensi dimana Indonesia merupakan negara tropis yang terekspos sinar matahari hampir sepanjang tahun. Namun, hanya digunakan untuk kegiatan praktikum dan masih belum terkoneksi dengan beban yg optimal Pembangkit Listrik Tenaga Surya (PLTS) sebesar 4 kW telah terinstal pada rooftop lantai 6 Gedung Teknik Politeknik Negeri Jember. Penelitian ini bertujuan untuk mengetahui performa PLTS rooftop yang telah terpasang dengan cara mengintegrasikan ke jaringan listrik di Gedung Teknik. Integrasi PLTS di Gedung Teknik Lantai 6 telah berhasil dilakukan untuk mensuplai lampu penerangan di Gedung Teknik Lantai 3 sebanyak 25 unit lampu dengan total konsumsi daya adalah 964 watt. Sistem PLTS diinstal secara offgrid rangkaian AC coupling yang terdiri dari 12 unit panel surya masing-masing berkapasitas daya 360 watt, 1 unit inverter 5000 watt, dan 8 unit baterai 12 volt 105 Ah.
Development of Robotics Learning Modules based on IoT and ESP32 Rofi'i, Ahmad; Afianah, Nuzula; Kautsar, Syamsiar; Pratama, Aditya Wahyu; Winadi, Aditya Wahyu; Purnomo, Fendik Eko; Putri, Salsabila Liandra; Tyagita, Dicky Adi; Nari, Mochammad Irwan; Afriansyah, Faisal Lutfi
International Journal of Technology, Food and Agriculture Vol. 2 No. 3 (2025): October
Publisher : P3M Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/tefa.v2i3.5885

Abstract

This study aims to develop a transporter robot as a learning tool for elementary and secondary school students to introduce them to robotics. The robot features a differential drive system and a lifting arm akin to a forklift system. The robot is controlled using an ESP32 microcontroller and connected to an Android application through a Firebase cloud database. Utilizing an IoT platform, the training can be conducted online, allowing students to control the robot remotely while it remains at the training location. The transporter robot is designed to provide an interactive and hands-on learning experience in robotics, enabling students to grasp fundamental concepts in robotics, programming, and control systems. The differential drive system offers excellent maneuverability, while the lifting arm allows the robot to perform tasks such as lifting and moving objects, adding functional aspects to the learning process. Test results indicate that the robot performs well under online control, with fast and accurate responses to commands from the Android application. The use of Firebase ensures stable and real-time communication between the robot and the application. This implementation not only enhances the accessibility of robotics training but also enables the development of students' STEM skills in a more flexible and affordable manner. The study concludes that an ESP32-based transporter robot with online control via an Android application and Firebase cloud database can be an effective and innovative learning tool. This tool aims to enhance students’ STEM skills -especially in programming, control systems, and mechanical design- through interactive, real-world applications.
Determination of Factors Affecting Cashless Payment Through E-Wallet for Students in Yogyakarta Pratama, Aditya Wahyu; Nasrulloh, Rifqi Syarif
MIX: JURNAL ILMIAH MANAJEMEN Vol 14, No 1 (2024): MIX: Jurnal Ilmiah Manajemen
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jurnal_mix.2024.v14i1.010

Abstract

Objectives: This study aims to determine what factors can affect cashless payments to students in Yogyakarta. This research is important because there is a research gap from previous studies.Methodology: This study used a purposive sampling technique and the data collection technique used was distributing questionnaires to respondents by a Google Form with answers using 5-point Likert scale. A sample of 108 respondents was obtained. The collected data were analyzed using the SEM-PLS method with the help of SmartPLS 4 Software.Finding: The empirical test results showed that consumer knowledge had no effect on cashless decisions nor was it mediated by service features. Meanwhile, convenience had a significant positive effect on cashless decisions and service features were able to mediate the relationship between convenience and cashless decisions. Furthermore, service features had a significant positive effect on cashless e-Wallet decisions for students in Yogyakarta.Conclusion: Having a high level of knowledge did not increase student decisions to pay in cashless, this indicates a low level of community literacy. This finding can be interpreted that students feel that the e-Wallet cashless payment service features are easy to access, have various transaction features and services, and the many product innovations provided by e-Wallet can influence students to decide to pay cashless.
Rancang Bangun Switching Mode Power Supply dengan Variasi Lilitan Sekunder Transformator untuk Proses Elektroplating Kholil, Moh.; Sulistiono, Dety Oktavia; Adityo, Adityo; Pratama, Aditya Wahyu; Nugroho, Wendy Triadji
Jurnal Teknik Terapan Vol. 3 No. 1 (2024): April
Publisher : P3M Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/jteta.v3i1.35

Abstract

Pada saat ini catu daya konvensional atau linier sudah tidak relevan diperangkat elektronik dan akhir-akhir ini sudah dikembangkan switching mode power supply (SMPS). switching mode power supply (SMPS) adalah catu daya yang menggunakan MOSFET sebagai saklar yang dihubungkan ke trafo ferrit. Penelitian ini bertujuan untuk mengetahui pengaruh kawat diameter 0,40 dan 0,45 mm dengan 4, 6, dan 8 lilit dirangkap 5 secara bersamaan pada bagian sekunder, serta untuk mengetahui pengaruh tegangan dan kuat arus pada proses elektroplating. Pengujian catu daya SMPS dengan melakukan proses elektroplating selama 20 menit dengan spesimen besi dan bahan pelapis nikel. Pada penelitian ini mendapatkan hasil yang bagus menggunakan kawat diameter 0,40 mm dengan 4, 6, dan 8 lilit. Hasil dari penelitian catu daya SMPS dengan dengan 4, 6, dan 8 lilit terhadap output tegangan tidak mengalami penambahan secara signifikan yang berkisar sebesar 8,8 V. Sedangkan pada output kuat arus pada kawat berdiameter 0,40 mm mengalami peningkatan 0,759 A, 5,038 A dan tertinggi 5,424 seiring banyaknya jumlah lilitan, akan tetapi pada 0,45 mm mengalami penurunan 4,366 A, 1,396 A, dan yang terendah 1,069 A seiring banyaknya jumlah lilitan. Untuk hasil dari elektroplating didapat hasil yang bagus secara penambahan berat pada spesimen menggunakan kawat berdiameter 0,40 mm dengan 6 lilit.
Analisis Modifikasi Diameter Lubang Intake Manifold Terhadap Performa Sepeda Motor 160 Cc Menggunakan Bahan Bakar Pertamax 92 Pratama, Aditya Wahyu; Imam, Ahmad Fikrih Saiful; Budiprasojo, Azamataufiq
Jurnal Teknik Terapan Vol. 4 No. 1 (2025): April
Publisher : P3M Politeknik Negeri Jember

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Abstract

The performance of a motorcycle engine is influenced by the efficiency of the air and fuel intake system, where the intake manifold hole diameter plays a crucial role in regulating airflow into the combustion chamber. This study aims to analyze the effect of modifying the intake manifold hole diameter on the performance of a 160 cc motorcycle using Pertamax 92 fuel. The research method involved an experiment by performing porting and polishing on the intake manifold to reduce turbulence. The tested hole diameter variations were 26 mm (standard), 27.50 mm, and 28.50 mm. The test results showed that a 27.50 mm diameter produced the best performance with a torque of 11.50 Nm (4000 rpm), 11.65 Nm (5000 rpm), and 11.92 Nm (6000 rpm). The engine power also increased with results of 11.4 Hp (4000 rpm), 11.5 Hp (5000 rpm), and 11.8 Hp (6000 rpm). The 27.50 mm diameter was proven to provide an optimal balance between torque and power at various engine speeds.
Analyzing The Effect of Cylinder Liner Bronze Alloys on Hardness Hasbullah, Ichsan; Pratama, Aditya Wahyu
METAL: Jurnal Sistem Mekanik dan Termal Vol. 8 No. 2 (2024): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/metal.8.2.%p.2024

Abstract

The quality of a component material is a significant issue in today's society, where the concept of "quality for a price" is a prevalent one. This phenomenon is observed across various sectors, including official manufacturers, local factories, and even students. The objective is to consider and implement measures to enhance the quality of components, aiming for a satisfactory value. The influence of the hardness value on the ductile iron alloy with AB2 is a key factor in this study. The aim is to identify the ideal mass percentage quantity to obtain a satisfactory hardness value. This is based on the understanding that the limited quantity of gray cast iron in cast furnaces affects the value of its mixture with AB2. The process from start to finish encompasses a number of stages, during which the incorporation of AB2 into ductile iron results in a change in the quality of the molten metal, which becomes visibly more liquid. In contrast, the impact of the aluminum element is relatively modest, although the final value of the alloy, which is 37% nickel, significantly increases the hardness value. This type of iron is widely used in automotive products. It is recommended that production parties, especially those involved in the manufacture of automotive components, consider the indications that occur in the values of this test. This is because the development of material improvements has been very rapid in recent times. The hardness value achieved by the non-alloy was recorded at 372.92 HVN, the 14% AB2 alloy was 509.94 HVN, the 25% AB2 alloy had a value of 408.79, and the 37% AB2 alloy exhibited a twofold increase from the value without the alloy, namely 679.96 HVN.
Co-Authors Adityo Adityo, Adityo Afianah, Nuzula Afriansyah, Faisal Lutfi Alex Taufiqurrohman Zain Azamataufiq Budiprasojo Cahyaning Nur Karimah, Cahyaning Nur Dedy Syahputra, Dedy Dety Oktavia Sulistiono Dicky Adi Tyagita Fahriannur, Ahmad Faruq Avero Azhar Hasbullah, Ichsan Imam, Ahmad Fikrih Saiful Kautsar, Syamsiar Kholil, Moh. Nari, Mochammad Irwan Nugroho, Wendy Triadji nuruddin, mochammad Purnomo Budi Santoso Purnomo, Fendik Eko Putri, Salsabila Liandra Rifqi Syarif Nasrulloh Rofi'i, Ahmad Slamet Wahyudi Suranto, Dwi Djoko Winadi, Aditya Wahyu