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All Journal Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin
Suartika, I.M.
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Aerospace Engineering Automotive Engineering Mechanical Engineering Physics

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Design and simulation of boat pulling system to improve productivity of the traditional fishermen in steep coastal region Yudhyadi, I.G.N.K; Okariawan, I.D.K.; Suartika, I.M.; Adhi, I.G.A.K.C
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 9, No 1 (2019): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (612.698 KB) | DOI: 10.29303/dtm.v9i1.260

Abstract

The Indonesian coastal line is the largest in the world and has potentially large number of coastal natural resources, such as fish, seaweed etc. However, the Indonesian fishermen, particularly the traditional ones, have always been facing the hard and mediocre life. The situation was derive a specific research whit long-term goal was an attempt to facilitate the traditional fishermens with better tools in order to increase their income. The specific target was designation and implementation of simple and applicable small boat pulling apparatus to cut down the time needed to move the fishing boat on and off shore. It is no doubth that the introduction of the tool will improve the fishermen operation effectiveness and efficiency. Furthermore, the execution of ideas, manual calculation and raw design drawing along with Autodesk Inventor simulations software has been able to produce a model assembly of boat pulling apparatus. The design prerequisite was based on the results of comprehensive series of surveys related to the West Nusa Tenggara coastal conditions which was steep coastal with slope of 15-30 degrees as well as the simplicity of design needed by the fisherman. Based on the results of static analyse with finite element analysis (FMA) and dinamic analysis, the resulting design meets the shafety design requirements. Finally, the design can be said in the safe category and can be used safely in such conditions without harming the fisherman. Finally, this apparatus will economically improve the fishermen traditional life.
Penambahan alternator pada mesin ketinting untuk melayani kebutuhan daya lampu nelayan tradisional di malam hari Suartika, I.M.; Okariawan, I.D.K.; Saputra, W.
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 12, No 1 (2022): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1021.165 KB) | DOI: 10.29303/dtm.v12i1.509

Abstract

In this study the ketinting machine was modified by adding an alternator. By adding alternators aimed at supplying the power needs of lights for lighting when fishermen operate at night. The ketinting machine is dikopel with pully on its long shaft, and the pully is connected with the alternator using a V-belt, so that when the ketinting machine is turned on the alternator will rotate supplying the light power and charging the battery. When you do not turn on the lights, the alternator will charge the battery only. The method used in this study is an experiment in the laboratory to determine the effect of engine modifications on battery charging time and fuel consumption. Modifications resulted in a change in engine dimensions from 353 x 374 x 346 mm to 346 x 514 x 413.23 mm. The time it takes to charge the battery is affected by the engine rotation. The larger the engine revs the smaller the time it takes to fill the battery to the full. At 1500 rpm the charging time is 16 Hours 12 minutes, the 2000 rpm spin is 11 Hours 2 minutes, and the 2500 rpm spin is 7 Hours 15 minutes.  Fuel consumption increased by 80-90 percent in liters/hour from before it was modified with after it was modified. Technically this modification of ketinting engines can help fishermen's operations at night but its feasibility economically needs further research
Efek suhu sintering terhadap sifat kekerasan bahan campuran Al/Cu/Sic melalui proses metalurgi serbuk Triadi, A.A.A.; Yudhyadi, I.G.N.K.; Suartika, I.M.; Sari, N.H.
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 9, No 2 (2019): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (427.568 KB) | DOI: 10.29303/dtm.v9i2.277

Abstract

This study aims to investigate the hardness properties of materials made of a mixture of aluminum, copper, and silicon carbide powders. The product has been made of mixtures aluminium (Al), copper (Cu) and silicon carbide (SiC) powders with a concentration of 80; 15; 5 (% wt), respectively. Manufacture of the specimens was conducted used powder metallurgy. The dimension of the specimens’ diameter of 25 mm and a thickness of 4 mm. The variation of the temperature sintering is 320, 420 and 520 oC for 40 minutes. The hardness properties have analyzed using the Brinell method. The results show that at the temperature range  320 - 420 oC, the hardness of the specimen increase to 15.2 BHN; it is due to the bond between metal powders is formed strong enough. Conversely, at 520 oC the hardness number is low because most of SiC is bound weakly to other powders. It can be concluded that the selection of temperature and sintering time and proper mixing greatly influence the hardness properties of materials yields of powder metallurgical.
Kaizen implementation to reduce dimensional defect in the welding process of Fender D155A-6R at PT Arkha Jayanti Persada Yana, I.G.B.E.P.; Setyawan, P.D.; Suartika, I.M.; Rachmalia, A.; Aziz, M.M.
Dinamika Teknik Mesin Vol 15, No 2 (2025): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v15i2.1158

Abstract

Kaizen is a concept of continuous improvement that emphasizes quality enhancement and efficiency in production processes. In this study, the Kaizen approach was applied to address dimensional defects in the welding process of the Fender D155A-6R component at PT. Arkha Jayanti Persada. The component, which was previously imported from Japan, is currently being tested through local production trials. Initial inspection indicated that 11 of 33 measurement points were out of tolerance, most of which were linked to welding activities. To analyze the problem, the PDCA (Plan, Do, Check, Act) cycle was employed. The investigation revealed several contributing factors: the absence of a locator to secure parts during welding, insufficient reinforcement that caused deformation, and the lack of a standardized welding procedure for operators. Corrective measures were then introduced, including the installation of a locator, additional reinforcements, and the establishment of a formal welding procedure. After two PDCA cycles, the dimensional issues were successfully resolved. The findings indicate that applying Kaizen through PDCA led to significant improvements in dimensional accuracy and product quality.
Co-Authors A.A.A. Triadi, A.A.A. Adhi, I.G.A.K.C Aziz, M.M. N.H. Sari Okariawan, I.D.K. P.D. Setyawan, P.D. Rachmalia, A. Saputra, W. Yana, I.G.B.E.P. Yudhyadi, I.G.N.K Yudhyadi, I.G.N.K.