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All Journal JPTK: Jurnal Pendidikan Teknologi dan Kejuruan Pelita - Jurnal Penelitian Mahasiswa UNY ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Conference on Innovation and Application of Science and Technology (CIASTECH) ComTech: Computer, Mathematics and Engineering Applications Jurnal Pendidikan Vokasi Otomotif Journal of Engineering and Applied Technology Automotive Experiences Journal of Automotive and Mechanical Applied Technology
I Wayan Adiyasa
Universitas Negeri Yogyakarta
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Transportation Other

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OPTIMALISASI STRUKTURAL PADA HANDLE KOPLING SEPEDA MOTOR Kholis, Agit Sakti Nur; Achmad, Fandi; Yudianto, Aan; Adiyasa, I Wayan; Solikin, Moch.
Conference on Innovation and Application of Science and Technology (CIASTECH) CIASTECH 2020 "Peranan Strategis Teknologi Dalam Kehidupan di Era New Normal"
Publisher : Universitas Widyagama Malang

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Abstract

 Handle kopling merupakan komponen yang terdapat pada sepeda motor manual, yang digunakan sebagai tempat penghubung mesin dengan transmisi. Handle kopling sendiri harus juga didesain dengan seringan mungkin, kuat dan juga memiliki nilai ergonomic bagi penggunanya. Tujuan penelitian ini yakni untuk memodifikasi desain handle kopling dengan menggunakan metode Optimasi topology. Optimasi topology merupakan metode yang digunakan untuk mengoptimalisasi bentuk dari komponen yang akan dibuat yang berupa pertimbangan batasan dari disain, kondisi pembebanan tertentu dll secara matematis. Hasil dari optimasi handle kopling ini mampu mengurangi masa sebanyak 67,12% dengan hasil akhir safety factor sebesar 1,9568.
ECTOC (ELECTRICAL CARBON DIOXIDE TO OXYGEN CONVERTER) TO ADD OXYGEN IN THE ROOMS OF BOARDING HOUSES Anang Prasetyo; Rahmat Widadi; I Wayan Adiyasa
Pelita - Jurnal Penelitian Mahasiswa UNY Volume VIII, Nomor 1, April 2013
Publisher : Pelita - Jurnal Penelitian Mahasiswa UNY

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Abstract

This research was aimed at finding out the concept of ECTOC (Electrical CarbonDioxide To Oxygen Converter) to add oxygen in in the rooms of boarding houses andfinding out how ECTOC (Electrical Carbon Dioxide To Oxygen Converter) worked toadd oxygen in in the rooms of boarding houses.This research was categorized as Research and Development employing themodel of Borg and Gall. The data were collected through observation, questionnaires,and documentation. The data were analyzed quantitatively and qualitatively. Theanalyzed qualitative data were classified based on the collection category andgeneralized by employing simple statistics.The concept and procedure of ECTOC (Electrical Carbon Dioxide To OxygenConverter) was adding oxygen to refresh the rooms by taking the air from outside andprocessing it in the pipes around which induction with high voltage was wound toburn carbon dioxide and send oxygen to the rooms. The high voltage was obtainedfrom the coil converting 12Volt into
Aerodynamics of Bus Platooning under Crosswind Aan Yudianto; I Wayan Adiyasa; Afri Yudantoko
Automotive Experiences Vol 4 No 3 (2021)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1857.193 KB) | DOI: 10.31603/ae.5298

Abstract

The aerodynamic benefits of a vehicle in a platoon could be distracted by an imposed crosswind on it. The study aims to investigate the alteration of aerodynamic coefficient comprising drag force coefficient, lift force coefficient, side force coefficient, and pressure coefficient of buses traveling in a platoon by considering crosswind. A Computational Fluid Dynamic (CFD) simulation was carried out on a detailed bus model. Proposed meshing techniques were also offered. The investigation considered the yaw angle from 0° to 30° and inter-bus distances by proposed coefficient X/L from 0.05 to 1.25. The results in the changes in the aerodynamic performance of both buses were presented. The advantages of platoon configuration were described in more detail when no crosswind was considered in terms of the generated turbulence kinetic energy of the leading and following bus. The results indicated that a crosswind deteriorates aerodynamic benefits during the platoon. The inter-bus distance determines how the airflow around the bus behaves, leading to the variation in aerodynamic advantages experienced by buses. Comparison between the numerical study and experiment indicated a satisfactory correlation of results validation.
SIMULASI TUBRUKAN PADA PENYEDERHANAAN STRUKTUR RANGKA MOBIL JENIS MONOCOQUE Muhammad Saifannur Falah; Daffa Azrial Ikhwanta; Pajidu Marinyo Kause; Aan Y udianto; I Wayan Adiyasa; Moch Solikin
Conference on Innovation and Application of Science and Technology (CIASTECH) CIASTECH 2020 "Peranan Strategis Teknologi Dalam Kehidupan di Era New Normal"
Publisher : Universitas Widyagama Malang

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Abstract

Salah satu aspek yang perlu di perhatikan dalam merancang kendaraan ialah rangka, rangka merupakan bagian dari kendaraan yang memiliki fungsi sebagai fondasi yang menopang atau menyangga komponen kendaraan mulai dari mesin, drive train, suspensi, sistem kemudi, serta kelistrikan. Selain untuk menopang komponen kendaraan, rangka juga berfungsi sebagai salah satu faktor keselamatan pengemudi saat terjadi benturan. Tujuan dari penelitian ini adalah untuk mengetahui deformasi dan stress pada model sederhana dari rangka monocoque yang mengalami beberapa kondisi tubrukan. Metode penelitian yang digunakan ialah simulasi explicit dynamics analysis untuk menguji beban impact pada peyederhanaan struktur model rangka kendaraan jenis monocoque, dan melakukan simulasi Frontal crash 90 degree barrier, Frontal crash with offset, Pole offset crash, dan 90 degree side crash. Hasil dari penelitian di dapat bahwa pengujian car crash Totaldeformation dan Stress pada peyederhanaan struktur model rangka kendaraan jenis monocoque, Frontal crash berdampak lebih besar dari pada Side crash, dilihat dari hasil nilai total deformation dan stress yang lebih besar dari pada Side crash yaitu pada frontal crash memiliki Total deformation maksimal sebesar 129,92 mm dengan stress maksimal 642,92 Mpa sedangkan side crash memiliki Total deformation sebesar 44,2 mm dengan stress maksimal 473,5 Mpa.
PENGUJIAN BATANG PISTON TERHADAP BEBAN GAS PEMBAKARAN DAN KELEMBAMAN Muhammad Syahrul Akmal; I Kadek Bagus Suryanata; Riski Rido Utomo; Arya Ferdian Ramadhan Putra; Aan Yudianto; I Wayan Adiyasa; Moch Solikin
Conference on Innovation and Application of Science and Technology (CIASTECH) CIASTECH 2020 "Peranan Strategis Teknologi Dalam Kehidupan di Era New Normal"
Publisher : Universitas Widyagama Malang

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Abstract

Penelitian ini berfokus pada pengujian beban gas pembakaran maupun kelembaman pada sebuah batang piston. Tujuan penelitian ini adalah memahami dasar cara kerja dari connecting rod yang berbahan dasar Gray Cast Iron serta memahami perbedaan karakteristik struktur bendanya. Metode yang digunakan dalam penelitian ini adalah metode static structural analisis menggunakan aplikasi ANSYS 2020 R2 untuk mengidentifikasikan lokal pembebanan connecting rod dan mengevaluasi hasil stress dan deformasi total pada komponen yang disebabkan oleh tekanan gas pembakaran dan gaya inersia (kelembaman). Hasil dari penelitian didapatkan bahwa pengujian connecting rod yang disebabkan oleh gas pembakaran dan pembebanan gaya inersia dikategorikan aman. Karena hasil dari kedua pengujian tersebut nilai maksimum dari stress von-misses dibawah dari tegangan ijin (yield strength) dari bahan yang digunakan.
The Development of Learning Media of 2-Stroke Engine Manufactured by 3D Print for Distance Learning Moch Solikin; Aan Yudianto; I Wayan Adiyasa
Jurnal Pendidikan Teknologi dan Kejuruan Vol 28, No 1 (2022): (May)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jptk.v28i1.47499

Abstract

The Covid19 pandemic that has hit the world requires educational media innovations that are portable, lightweight, and easy to operate for online learning purposes. This study aims to develop learning media for students of the Light Vehicle Engineering Vocational School on the topic of a 2 stroke engine using a engine model made using 3D printing technology with Polylactic Acid as the base material. This is carried out to develop media to support teachers of related subjects in the implementation of online learning. This study uses the Design and Development (DD Research) method which consists of identifying the problem, describing the objectives, design and development, testing, evaluating and finally communicating the results. Data analysis was carried out quantitatively and qualitatively to explain the obtained results. The checklist evaluation was performed to assess the produced learning media. The results indicated that the utilization of 3D print to create lightweight, portable and representable learning media has been successfully achieved. The constructed learning media is aimed to be utilized to explain the competency of two-strokes engine in a distance learning.
Study case ratio gear of stepper motor on electronic throttle using PID control Ayu Sandra Dewi; Zainal Arifin; I Wayan Adiyasa
Journal of Engineering and Applied Technology Vol 2, No 1 (2021): (March)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v2i1.39413

Abstract

The throttle is a component that determines the amount of airflow into the combustion chamber. The latest in-vehicle technology makes it possible to adjust the fly valve electronically. The electronic system adjusts the angle size by comparing the predetermined setpoints. In research, electronic system designs are based on existing models. The throttle model uses a stepper motor drive. Electronic control using a microcontroller with proportional-integral-derivative (PID) control. While the setpoint is based on a reference from the throttle position sensor (TPS) sensor. The greater the throttle reference value, the greater the angle opening of the butterfly valve. The results of this study obtained a simulation model of electronic throttle control from gear ratios of 1: 1, 5: 1, and 10: 1 for conventional vehicles.
Lightweight Design and Finite Element Analysis of Brake Lever for Motorcycle Application Agus Puji Prasetyono; Aan Yudianto; I Wayan Adiyasa
ComTech: Computer, Mathematics and Engineering Applications Vol. 14 No. 1 (2023): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v14i1.8604

Abstract

A lightweight component design contributes to the overall optimization of a system to be more effective and efficient. Then, it can lead to the contribution of a carbon footprint reduction. The research aimed to propose a novel lightweight brake lever design for motorcycle applications and numerically investigate its performance by comparing the proposed design with different utilized materials. The subject of the research was an optimized brake lever for motorcycle application. The materials used were aluminum alloy, structural steel, and titanium alloy. A Finite Element Method (FEM) analysis was employed to investigate the proposed brake lever design. Three proposed designs were introduced with the mass reduction in each optimization up to 50,9% of reduced mass. Maximum stress was observed on the most optimized design with a value of 297 MPa. The strain and total deformation were also investigated among the components. In the result, the stress-strain graph shows that the most optimized brake lever experiences the highest stress with the highest strain value. Furthermore, the highest safety factor is achieved with the utilization of titanium alloy, reaching the value of 6,28 for preliminary design and 3,1 for the most optimized component. However, the lightest component can be obtained using aluminum alloy.
Analisis Faktor Kapasitas Pembangkit Listrik Hibrida PLTB dengan PLTD di Pulau Terpencil: Studi Kasus Elat Pulau Serau Maluku WIJAYA, FRANSISCO DANANG; ADIYASA, I WAYAN; WINATA, EKRAR
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 9, No 4: Published October 2021
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v9i4.746

Abstract

ABSTRAKRasio elektrifikasi di Indonesia belum mencapai 100%, penyebabnya antara lain masalah lokasi di daerah terpencil atau kepulauan dan mahalnya biaya operasi PLTD. Salah satu solusi adalah membangkitkan listrik berbasis energi terbarukan setempat. Tahap awal pemanfaatan energi terbarukan perlu dihitung faktor kapasitas (CF). Tujuan penelitian ini menganalisis CF untuk PLTB dengan metode perhitungan analitik berbasis potensi energi angin, spesifikasi teknologi PLTB dan PLTD, profil beban dan energi listrik yang dapat diproduksi untuk pengembangan sistem hibrida dengan mengambil kasus di Elat Pulau Serau Maluku. Hasil perhitungan CF untuk 5 teknologi PLTB yang berbeda dengan variasi ketinggian di Elat telah diverifikasi dengan simulasi menggunakan perangkat lunak HOMER dengan nilai rerata galat -0,030. Semakin tinggi PLTB, nilai CF semakin besar dengan konstanta 0,0030.Kata kunci: elektrifikasi, faktor kapasitas, PLTB, PLTD, sistem hibrida ABSTRACTThe electrification ratio in Indonesia has not reached 100%, the causes include problems with the location in remote areas or islands and the high operating costs of diesel power plant (DPP). One solution is to generate electricity based on local renewable energy. The initial stage of utilizing renewable energy needs to calculate the capacity factor (CF). The purpose of this research is to analyze CF for wind turbine generator (WTG) with analytical calculation methods based on wind energy potential, technology specifications of WTG and DPP, load profiles and electrical energy that can be produced for hybrid system development by taking the case in Elat Serau Island, Maluku. The results of CF calculations for 5 different WTG technologies with altitude variations in Elat have been verified by simulation using HOMER software with a mean error value of -0.030. The higher the WTG, the greater the CF value with a constant of 0.0030.Keywords: electrification, capacity factor, diesel power plant, wind turbine generator, hybrid system
Prototype of an Adaptive Wiper System for Electric Vehicles for Disabled Users Using a Servo Motor Nugroho, Raihan Bayu; Warsita, I Wayan; Adiyasa, I Wayan
Journal of Automotive and Mechanical Applied Technology Vol. 2 No. 1 (2025): June
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamat.v2i1.1342

Abstract

This study presents the design and implementation of a prototype wiper system using a servo motor, specifically developed for electric vehicles designed for persons with disabilities. The system is structured through several stages, including the creation of a wiring diagram, the development of a control system based on an Arduino Uno microcontroller, and the integration of key components such as a 12V battery, a three-position switch, a step-down LM2596 module, and an RDS3239 servo motor. The control logic enables two-speed wiping modes low and high regulated by user input via the switch. Electrical testing demonstrated that the current drawn by the system was 0.26 A at low speed and 0.37 A at high speed, with corresponding power consumption of 3.12 W and 4.44 W, respectively. These values fall within safe operating limits, indicating energy efficiency suitable for electric vehicle applications. Motion testing showed that the system achieved 30 wipes per minute at low speed and 60 wipes per minute at high speed, with the high-speed mode meeting the minimum functional criteria set by national standards. Angular deviation analysis further revealed that increased speed slightly impacted sweep precision, though still within acceptable tolerances. The results indicate that the developed system not only performs effectively in varying operational conditions but also offers energy-efficient and responsive functionality. This makes it a viable solution for adaptive and accessible mobility technologies in electric vehicles for persons with disabilities.
Co-Authors Aan Y udianto Aan Yudianto Afri Yudantoko Afri Yudantoko Agus Puji Prasetyono Anang Prasetyo Arya Ferdian Ramadhan Putra Daffa Azrial Ikhwanta Dewi, Ayu Sandra Ekrar Winata FANDI ACHMAD Fransisco Danang Wijaya I Kadek Bagus Suryanata Kholis, Agit Sakti Nur Moch. Solikin, Moch. Muhammad Saifannur Falah Muhammad Syahrul Akmal Nugroho, Raihan Bayu Pajidu Marinyo Kause Rahmat Widadi Riski Rido Utomo Warsita, I Wayan Zainal Arifin