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I Made Mara
Mataram University
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences

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PERANCANGAN CHASIS KENDARAAN LISTRIK UNIVERSITAS MATARAM A.A. Alit Triadi; Tri Rachmanto; I Made Mara; I G. N. K. Yudhyadi; Nur Kaliwantoro
Energy, Materials and Product Design Vol. 2 No. 1 (2023): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin dan Industri, Fakultas Teknik, Universitas Mataram

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Abstract

Chassis is the main component of the vehicle that functions to support the engine, body, suspension system, electrical system and driver. Chassis is one part of the vehicle that has an important role so careful planning is needed in its manufacture. Chassis must be strong and sturdy to support the load of the driver, electric motor and accessories. In addition, the chassis must also be light so as not to overload the work of the electric motor and be able to go through various road conditions. The vehicle body is its function to shape the vehicle and also protect the people inside. In this design, steel and aluminum materials are used, then simulated using the Autodesk Inventor software. The goal is to determine the Von Mosses stress value on the chassis design. AISI 1018 steel material with a load of 700 kg, 800 kg, and with a load of 900 kg obtained a value of 5.56. The safety factor obtained is still safe because it is above the safety factor for industrial construction design, namely 4. Aluminum 6061 material with a load of 700 kg, 800 kg and with a load of 900 kg obtained a value of 7.46. The safety factor obtained is still safe because it is above the safety factor for industrial construction design, namely 4.
ANALISIS SUDUT BELOK DAN KECEPATAN TERHADAP RADIUS BELOK MOBIL LISTRIK I Made Mara; A. A. Alit Triadi; Andrian Suci Rahmawan
Energy, Materials and Product Design Vol. 2 No. 1 (2023): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin dan Industri, Fakultas Teknik, Universitas Mataram

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Abstract

As the number of cars increases, the number of accidents that occur is directly proportional to the number of accidents that occur, namely 117,949 cases and this increases by around 8.3% annually, mostly due to driver negligence and lack of vehicle stability. One important aspect in car design is the steering system which influences the response of the vehicle's steering motion to steering wheel input and has a major influence on comfort as well as safety. The purpose of this study was to determine the turning radius at various speeds and turning angles and to determine the ratio of the turning angle to the turning angle of an electric car. In the analysis phase, calculations are carried out based on slip analysis to obtain the turning radius at various speeds and turning angles, and the ratio of the turning angle to the turning angle of the electric car. At the testing stage it is carried out by determining the steer rotation angle based on the specified turning angle. The results of this study are at a speed of 30 Km/hour with a turning angle of 240 resulting in the smallest turning radius, that is, in the analysis of 5.5 m and 5.75 m of experiment and the smallest percentage of turning radius, namely the results of the analysis are 4% smaller than the experimental results. At a speed of 50 Km/hour with a turning angle of 150 produces the largest turning radius, namely, in the analysis of 9.5 m and 9 m experiments and the greatest percentage of turning radius, namely the results of the analysis are 13% smaller than the experimental results. From the results of the analysis, the ratio of the turning angle to the turning radius is 18:1.
STUDY PENGEREMEN PADA MOBIL LISTRIK HASIL MODIFIKASI A.A. Alit Triadi; Achmad Zainuri; I Made Suartika; I Made Adi Sayoga; I Made Mara; I Dewa Ketut Okariawan
Energy, Materials and Product Design Vol. 3 No. 1 (2024): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin dan Industri, Fakultas Teknik, Universitas Mataram

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Every three accidents occur every hour in Indonesia, according to the Director of Road Traffic at the Ministry of Land Transportation, with a percentage of over 50-70 percent and 30 percent of accidents occur due to poor performance of the brake system. Accidents occur due to insufficient braking distance and lack of understanding of the braking characteristics of the vehicle being driven. The aim of this research is to analyze the distance, time and braking force required for an electric car to move until it stops with variations in speed and vehicle load. This research was carried out using an experimental method where a prototype electric car was run by varying the speed and load of the vehicle to obtain braking time and distance and analyzing the data obtained. The shortest braking distance at a speed of 20 km/hour with a vehicle load of 950 kg is 4.39 meters. The longest braking distance is 14.78 meters at a speed of 40 km/hour with a vehicle load of 1050kg. The fastest braking time is at a speed of 20 km/hour with a vehicle load of 950 kg, namely 1.97 seconds. The longest braking time was at a speed of 40 km/h with a vehicle load of 1050 kg, namely 2.76 seconds. The smallest braking force is at a speed of 20 km/hour with a vehicle load of 1050 kg, namely 2098.36 N. The largest braking force is at a speed of 40 km/hour with a vehicle load of 950 kg, namely 4132.65 N.
EVALUASI KINERJA TERMAL UNJUK KERJA KOMPOR BERBAHAN BAKAR OLI BEKAS: THERMAL PERFORMANCE EVALUATION OF USED OIL-FUELED STOVES I Made Mara; I Made Adi Sayoga; I Made Nuarsa
Energy, Materials and Product Design Vol. 4 No. 2 (2025): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin dan Industri, Fakultas Teknik, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/b0ks5a25

Abstract

The use of used cooking oil and waste oil as fuel—particularly for cooking—is becoming increasingly common among the public in Indonesia. While this practice offers economic advantages, improper management of used oil can lead to environmental problems such as air and soil pollution. To address this issue, alternative methods for processing used oil are needed to minimize its negative impact. One such method is the use of a used oil stove, which utilizes waste oil as fuel. This not only reduces the amount of oil discarded but also provides a cost-effective substitute for more expensive fuels like gas or kerosene. The purpose of this study was to examine the effect of varying air flow velocities on flame temperature, flame color, and the time required to heat water using used oil as fuel in a stove. The stove was tested under different air flow conditions, and flame temperature and color were observed in three stages. Additionally, the time taken to heat water to approximately 90 °C was recorded. At the lowest air flow rate of 15 m/s, the flame temperature reached 251.5 °C, and the water heating time was 187 seconds. At the highest air flow velocity of 29 m/s, the flame temperature increased to 273.7 °C. These results indicate that higher air flow velocity lead to increased flame temperatures and improved heating efficiency, suggesting that optimizing air flow in used oil stoves can enhance their performance while supporting more sustainable fuel practices.
Co-Authors A. A. Alit Triadi A.A. Alit Triadi A.A. Alit Triadi, A.A. Alit Achmad Zainuri Achmad Zainuri Adi W, IGAK Catur Agus Dwi Catur Ahmad Wardi Salim, Ahmad Wardi Allo Padang, Yesung Andrian Suci Rahmawan Arif Mulyanto, Arif Barlian Mahendra, Barlian Benoit, Fransiskus Yusdwi Benoit Toding Bima, Rangga Bima, Rangga Bima Didin F Fane, Didin F Egamiati Egamiati Egamiati Firman Aryanto, Firman Fitri Handayani Fitri, Imayatul hendry sakke tira I G. N. K. Yudhyadi I G.A.K Chatur Adhi W.A. I Gede Bawa Susana I Kade Wiratama I Kade Wiratama, I Kade I Ketut Wiryajati I Made Adi Sayoga I Made Adi Sayoga, I Made I Made Adi Sayoga, I Made Adi I Made Nuarsa I Made Nuarsa, I Made I Made Suartika I Made Suartika I Made Suartika I Nyoman Wahyu Satiawan I Wayan Joniarta I Wayan, Joniarta I.D.K. Okariawan Ida Ayu Sri Adnyani Ida Bagus Alit IDK Okariawan, IDK Islami, Nurul Hida Wahyuni L. Edsona Furqan Prina, L. Edsona Furqan Lastika, I Gusti Kadek Dodi Made Wijana Made Wirawan, Made Mahendra, Esa Ramdhan Ardi Muhamad Majedi Muhammad Firdaus Muliadi Harianhady, Muliadi Musyahadati, Shufi Nur Kaliwantoro Okariawan, I Dewa Ketut Paramitha, Ni Ketut Rizka Widya Pramana, Yoga Tri Pratama, Imam Akbar Puad, Rae Nanda Azmi Purnama, Febrian Putra, I Ketut Perdana Rahmadi, Fakhmi Caesar Rahmawan, Andrian Suci Riskon Riskon, Riskon Rudy Sutanto saputri, lia Sasono, Marendra Sinarep Sinarep Sujita Sujita Suteja Suteja, Suteja Syamsul Hadi Towilan Ma’bud, Towilan Tri Rachmanto Tri Rachmanto, Tri Triadi, A. A. Alit Yesung Allo Padang, Yesung Allo Yudhyadi, I G. N. K.