cover
Contact Name
Frangky Silitonga
Contact Email
frangkyka@gmail.com
Phone
+6285868067100
Journal Mail Official
jurnalmekanikasista@akmil.ac.id
Editorial Address
Kampus Akademi Militer/ AKMIL Jalan Gatot Subroto Jurangombo Selatan Magelang Selatan, Seneng Satu, Banyurojo, Kec. Mertoyudan, Kabupaten Magelang, Jawa Tengah 56172
Location
Kab. magelang,
Jawa tengah
INDONESIA
Jurnal Mekanikasista
ISSN : 23547308     EISSN : 29635365     DOI : -
Core Subject : Engineering,
Jurnal Mekanikasista jurnal yang mempublikasikan dan mewadahi hasil penelitian bidang teknik mesin yang berkaitan dengan perkembangan teknologi miiter yang berfokus pada teknik mesin secara umum. Jurnal ini mempublikasi hasil penelitian yang dilakukan civitas Akmil ataupun berkolaborasi dengan institusi di luar Akmil. Penulis dalam jurnal ini terdiri dari Dosen, Praktisi dan Taruna. Semua hasil penelitian yang akan dipublikasi harus melewati proses review oleh reviwer sebagaimana telah di juntuk, tugas dan janggung jawabnya oleh Penangung Jurnal Mekanikasista. Terbit dua Kali dalam setahun pada setiap bulan Nopember dan Mei
Articles 30 Documents
ANALISA PERBANDINGAN OLI MESRAN DAN OLI PRIMA XP TERHADAP LAJU KEAUSAN PISTON HONDA GL 125 Wijanarko, Heri; Sugihandoko; Lufti, Aryananta
JURNAL MEKANIKASISTA Vol. 12 No. 1 (2024): NOPEMBER 2024
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jtmp.v12i1.238

Abstract

Analysis in this case the Indonesian Army as a national defense tool requires a strong vehicle in all fields. Especially in the vehicle engine requires a type of lubricant that suits the characteristics of the engine. So that the performance of the vehicle engine can be maximized. In addition, with the right lubricant, maintenance costs, equipment replacement costs can be more efficient and fuel consumption is more efficient. The piston is a part that always moves continuously, so that lubrication can reduce friction and reduce wear on the piston. With proper lubrication, the piston will be more durable. In this analysis, we try to find the best type of lubricant that is resistant to wear from friction. So that the type of lubricant that is suitable is obtained according to the characteristics of the engine. And knowing how resistant to wear.  
ANALISIS PERBANDINGAN PENGGUNAAN BAHAN BAKAR GASOHOL DAN PREMIUM TERHADAP PRESTASI MESIN KENDARAAN DAIHATSU FEROZA HP, Bambang; Budi Santoso, Edy; Nurtjahyono
JURNAL MEKANIKASISTA Vol. 12 No. 1 (2024): NOPEMBER 2024
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jtmp.v12i1.239

Abstract

The research that I made discusses the transfer of energy sources from premium to bioethanol because the facts in the field state that the use of premium fuel is increasing, this great need is faced with threatening problems, namely as we know that premium is included in non-renewable natural resources so that one day it will run out and there are no other energy sources one day there will be a need for renewable energy sources that are abundant and have more environmentally friendly properties, for that bioethanol is the alternative that I choose. because bioethanol has many benefits compared to using gasoline, including:  More perfect combustion, exhaust gas becomes clean.More spontaneous and light traction  Smooth engine, safe for catalyst engines. Fuel efficient up to 20%  Extends engine life ,Higher octane number,Gasoline-fueled motors when filled with 80% premium + 15% Bioethanol will produce engine performance that is almost the same as being filled with premium fuel and will even produce better engine performance. so that research on the comparison of bioethanol can be developed for research, the results of which are expected to be useful for the Indonesian Army.    
UJI STRUKTUR BAHAN KAMPAS REM TROMOL PADA KENDARAAN TRUK MITSUBISHI 120 PS MERK MITSUBISHI DAN MERK INDOPARTS Harjanto, Budi; Wijanarko, Heri; Sukahar
JURNAL MEKANIKASISTA Vol. 12 No. 1 (2024): NOPEMBER 2024
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jtmp.v12i1.240

Abstract

The Mitsubishi 120 PS truck is one of the service vehicles at the Military Academy. This truck is frequently used to transport cadets, particularly to training areas. Given the challenging terrain cadets must navigate, including both uphill and downhill roads, an optimal and consistent braking system is required. This study aims to analyze the wear rate of the drum brake pads used in the Mitsubishi 120 PS truck. The research focuses on determining the hardness, wear rate, and carbon content of the drum brake pads of the Mitsubishi brand compared to the Indoparts brand through hardness, wear, and material composition tests. The test results showed that the hardness of Mitsubishi brake pads is 78.06 kg/mm², which is higher than Indoparts at 58.25 kg/mm². The wear rate for Mitsubishi pads is 5.79x10⁻⁴ mm³/kg.m, which is lower than Indoparts at 1.1599x10⁻³ mm³/kg.m. The carbon content in Mitsubishi pads is 35.48%, higher than Indoparts at 33.18%. This indicates that the harder the brake pad, the lower its wear rate. Therefore, Mitsubishi drum brake pads are more durable and recommended due to their higher resistance to wear.  
ANALISA PERBANDINGAN SIFAT FISIS DAN MEKANIS ANTARA PENA PEMUKUL SS1-V1 BUATAN PINDAD DENGAN M16-A1 BUATAN AMERIKA Oktosatrio, Suhendro; Sugihandoko; TjandraKusuma, Taufan
JURNAL MEKANIKASISTA Vol. 12 No. 1 (2024): NOPEMBER 2024
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jtmp.v12i1.241

Abstract

This research analyzes the differences in physical and mechanical properties between the firing pin of the SS1-V1, manufactured by Pindad, and the firing pin of the M16-A1, manufactured in the United States. The main focus is to determine the cause of frequent damage to the SS1-V1 firing pin, while the M16-A1 firing pin does not experience similar issues. Testing included hardness tests, microstructure analysis, and material composition analysis, showing that although both pins have similar material structures, there are significant differences in composition and design. As a result, the author recommends changes in the composition, structure, and design of the SS1-V1 firing pin to make it stronger and more durable.  
PERENCANAAN PENGGANTI DUDUKAN VALVE PADA SEPEDA MOTOR HONDA CB 100 CC Oktosatrio, Suhendro; Sugihandoko; TjandraKusuma , Taufan
JURNAL MEKANIKASISTA Vol. 12 No. 2 (2025): MEI 2025
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jtmp.v12i2.305

Abstract

The Military Academy has high vehicle mobility, particularly motorcycles that are intensively used as a means of transportation within the academy environment. High usage leads to wear and tear on engine components, especially the valve seat, which can affect fuel efficiency and engine power. This study aims to analyze the replacement material for the valve seat on a Honda CB 100 CC motorcycle through material composition testing, hardness testing, and microstructure analysis. The research results indicate that the original valve seat is made of an alloy steel containing chromium and a small amount of nickel, with characteristics similar to the XW-5 material produced by Krakatau Steel. The microstructure analysis reveals a dominance of ferrite and pearlite, which can lead to material brittleness at high temperatures. Therefore, selecting a material that is more heat- and wear-resistant is crucial in designing a replacement valve seat. This study is expected to provide a solution for maintaining and improving the efficiency of motorcycles at the Military Academy while addressing the issue of spare part shortages.  
PENGARUH CELAH ELEKTRODE BUSI TERHADAP KINERJA MESIN HONDA GL 100 Harjanto, Budi; Wijanarko, Heri; Sukahar
JURNAL MEKANIKASISTA Vol. 12 No. 2 (2025): MEI 2025
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jtmp.v12i2.306

Abstract

This study aims to analyze the effect of spark plug electrode gap variations on the performance of the Honda GL 100 105 cc engine at the PAL Akmil workshop. Combustion in a gasoline engine occurs in the combustion chamber due to the spark plug’s electrical discharge, which is influenced by the voltage difference between the central electrode and the ground electrode, as well as the electrode gap. A gap that is too small can hinder flame kernel development, leading to suboptimal combustion and reduced engine performance. The experiment was conducted using an NGK DE8A spark plug with electrode gap variations of 0.6 mm, 0.7 mm, and 0.8 mm, and engine speed variations ranging from 3000 to 9000 rpm, increasing by 1000 rpm, using a dynamometer. The results showed that the highest torque was obtained at a 0.8 mm gap at 6000 rpm, measuring 7.19 Nm, while the lowest torque was recorded at a 0.6 mm gap at 9000 rpm, measuring 4.63 Nm. The highest power output was achieved at a 0.6 mm gap at 8000 rpm, reaching 6.81 HP, while the lowest power was observed at a 0.6 mm gap at 3000 rpm, at 2.75 HP. The highest brake mean effective pressure (BMEP) was recorded at a 0.8 mm gap at 6000 rpm, measuring 1.15 kPa, whereas the lowest BMEP was observed at a 0.6 mm gap at 9000 rpm, at 0.74 kPa. The study concludes that spark plug electrode gap variations significantly affect engine performance, with the optimal gap for torque and BMEP found to be 0.8 mm.  
PENGARUH PENGGANTIAN KOIL SEPEDA MOTOR GL 100 DENGAN KOIL MOBIL LAND ROVER TERHADAP KONSUMSI BAHAN BAKAR Aryananta Lufti; Santoso, Edy Budi; Nurtjahyono
JURNAL MEKANIKASISTA Vol. 12 No. 2 (2025): MEI 2025
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jtmp.v12i2.307

Abstract

The ignition coil in a motorcycle functions to increase the electrical voltage from a 12-volt battery to thousands of volts, which is then delivered to the spark plug to generate a spark for the combustion process. This study analyzes the effect of replacing a motorcycle ignition coil with a car ignition coil on fuel consumption. The experiment was conducted using several variables, including engine speed, fuel consumption time, and power output. The results indicate that an engine using a car ignition coil produces greater power than one using a motorcycle coil, while also being more fuel-efficient. This is due to the stronger and more efficient ignition provided by the car coil, which enhances combustion efficiency and reduces fuel wastage
PERENCANAAN ULANG RODA GIGI PINION PADA GARDAN BELAKANG KENDARAAN JEEP BJ-212 Wijanarko, Heri; Sugihandoko; Aryananta Lufti
JURNAL MEKANIKASISTA Vol. 12 No. 2 (2025): MEI 2025
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jtmp.v12i2.308

Abstract

Gears function to transmit high power and precise rotation through interlocking teeth. Gears are superior to other transmission systems as they are more compact, capable of transmitting large power with high efficiency, and have a minimal risk of slipping. Additionally, gears can withstand higher loads and allow for speed variations as needed. One commonly used type is the bevel gear, where the pitch surface forms a cone with its apex at the intersection of the shaft axes. Straight bevel gears are the easiest to manufacture and frequently used, although they produce significant noise due to their low contact ratio. Other types of bevel gears include spiral bevel gears, helical bevel gears, and hypoid gears, each with unique characteristics and advantages in transmission systems.  
PERANCANGAN ULANG SISTEM SUSPENSI SHOCKBREAKER PADA KENDARAAN BIMANTARA NENGGALA Sukahar; Hafid, Achmad; Suparja
JURNAL MEKANIKASISTA Vol. 12 No. 2 (2025): MEI 2025
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jtmp.v12i2.309

Abstract

This study focuses on redesigning the shock absorber suspension system of the Bimantara Nenggala vehicle, which is used as a service vehicle at the Military Academy, to enhance durability on rough road surfaces. The modification was carried out by increasing the diameter of the steel spring wire from 14 mm to 16 mm. The results indicate that this change increased the solid length of the spring from 56 mm to 96 mm, the number of coils from 2.5 to 4.5, and the spring deflection from 39.38 mm to 41.48 mm. This redesign demonstrates that using a 16 mm wire diameter provides better performance compared to the 14 mm wire, with improved durability, deflection, and coil count for optimal suspension efficiency.  
ANALISIS PERBANDINGAN UJI KEAUSAN ANTARA KAMPAS KOPLING KUALITAS 1 DENGAN KUALITAS 2 PADA KENDARAAN SUZUKI KATANA Aryananta Lufti; Harjanto, Budi; Silitonga, Frangky
JURNAL MEKANIKASISTA Vol. 12 No. 2 (2025): MEI 2025
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jtmp.v12i2.310

Abstract

To support high mobility and varied terrain, vehicles must have optimal engine performance, especially in the clutch system, which is prone to slipping due to clutch lining wear, increasing the risk of accidents. This study analyzes the wear level of Suzuki Katana clutch linings by comparing KW 1 and KW 2 through hardness, wear, and carbon content tests. The results indicate that KW 1 has a hardness of 251.34 kg/mm², higher than KW 2, which is only 67.82 kg/mm². The wear value of KW 1 is 0.003×10⁻⁴ mm³/kg.m, lower than KW 2 at 0.0086×10⁻³ mm³/kg.m. The carbon content in KW 1 reaches 44.0739%, higher than KW 2 at 32.3462%. These findings show that the higher the hardness of the clutch lining, the lower its wear rate, making KW 1 a better choice as it is more durable and resistant to wear.

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