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Journal : Energy, Materials and Product design

PENENTUAN WAKTU STANDAR PENGGANTIAN OLI SHOCK DENGAN TsA-1 (TOOL SHOCK ABSORBER) DI BENGKEL PT. ASTRA INTERNATIONAL TBK-HONDA SALES OPERATION MATARAM Suartika, I Made; Triadi, A.A. Alit; Yudhyadi, I G.N.K.; Sahram
Energy, Materials and Product Design Vol. 1 No. 1 (2022): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

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Abstract

Honda Sales Operation Mataram is a company engaged in distribution, retail and vehicle maintenance workshops. Existing workshops become a job for some communities and help improve the economy of the community. It is an important concern considering that it is the mechanics who are the main spears in service. From this, a company needs human resources that are able to work effectively and efficiently. To produce human resources that work effectively and efficiently, proper human resource planning and management is needed to encourage the achievement of the company's vision and mission. In planning and managing time it is necessary to take measurements of working time and update existing resources or the need for a tool to accelerate the pace of productivity in the company. One of them is in the oil shock and seal shock changes, and made TsA-1 (shock absorber tool) to make it easier for mechanics to work and know the comparison of time in completing a job, where the normal time obtained by using ordinary tools in oil shock changes is 39.38 minutes and the normal time obtained using TsA-1 (shock absorber tool) in shock oil change is 33.52 minutes. So the mechanic is faster to do his job using TsA-1 (Tool shock absorber), where the time difference is 5.86 minutes. The standard time obtained using a regular tool is 41.45 minutes and the standard time using TsA-1 (tool shock absorber) is 35.28 minutes. Mechanics using the TsA-1 (shock absorber) tool are 6.17 minutes faster than regular tools. And for the replacement of seal shock obtained a normal time of 53.36 minutes with a regular tool, 51.70 minutes using TsA-1 (Tool shock absorber). Mechanics are faster to do their work in 1.66 minutes using TsA-1 (Tool shock absorber). The standard time of seal shock replacement with a regular tool is 56.16 minutes, and 54.42 minutes using TsA-1 (Tool shock absorber). Mechanics using TsA-1 (shock absorber) are 1.74 minutes faster than regular tools.
EFEK WAKTU TAHAN SINTERING DAN KOMPOSISI BAHAN TERHADAP KEKERASAN DAN STRUKTUR MAKRO PRODUK METALURGI SERBUK Triadi, A.A. Alit; Fathony, M.D.; Pandiatmi, Pandri
Energy, Materials and Product Design Vol. 1 No. 2 (2022): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

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Abstract

The development of science and technology today is very rapid and develop in various sectors, that one is in engineering material sector, specifically composite material . One method of composite formation is powder metallurgy method. Powder metallurgy is a metalworking technology in which components are manufactured from metal powders. This study aims to determine the effect of holding time sintering and mixing composition on hardness and macro structure observations. The material used in this study was aluminum waste that came from the rest of the window cutting. The specimens were made using powder metallurgy method. In this study the variations used were the sintering holding time of 120 minutes, 180 minutes, 240 minutes, composition variations of 80% Al : 17% Sic : 3% Glass, 80% Al : 14% Sic : 6% Glass, 80% Al : 11 % Sic : 9% Glass, 80% Al : 8% Sic : 12% Glass. Some control variables are grain size 100 mesh, mixing 15 minutes, compacting 7 tons and sintering temperature 600oC. The results obtained are the highest hardness value is found in the specimen with a sintering temperature of 600oC with a sintering holding time of 240 minutes at a material composition of 80:17:03 which is 90.33 HRF. The macro structure observations showed that there was a smaller porosity in the specimens with high hardness values. The results of the overall mechanical properties test show that the variation of the sintering resistance time has an effect on the specimen which will give time for the formation of stronger bonds between particles. While the variation in the composition of the material with SiC reinforcement the more the percentage given, the greater the composite hardness.
PERANCANGAN CHASIS KENDARAAN LISTRIK UNIVERSITAS MATARAM Triadi, A.A. Alit; Rachmanto, Tri; Mara, I Made; Yudhyadi, I G. N. K.; Kaliwantoro, Nur
Energy, Materials and Product Design Vol. 2 No. 1 (2023): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, 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.
STUDY PENGEREMEN PADA MOBIL LISTRIK HASIL MODIFIKASI Triadi, A.A. Alit; Zainuri, Achmad; Suartika, I Made; Sayoga, I Made Adi; Mara, I Made; Okariawan, I Dewa Ketut
Energy, Materials and Product Design Vol. 3 No. 1 (2024): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

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Abstract

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.