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Jurnal Elemen
Published by Politeknik Negeri Tanah Laut
ISSN : 24424471     EISSN : 25812661     DOI : -
Core Subject : Science, Engineering,
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Engineering
Jurnal Elemen is a media for publishing scientific articles in the field of mechanical and automotive engineering which are published regularly in June and December each year. All articles presented are the results of research, conceptual ideas and reviews in the field of mechanical and automotive engineering that have never been published before. Jurnal Elemen managed by P3M in the Tanah Laut State Polytechnic has been ISSN, namely the printed version of ISSN 2442-4471 and online version of ISSN 2581-2661, and for now the Elementary journal has been indexed in ISJD (Indonesian Scientific Journal Database) in PDII-LIPI . then it can be indexed and accredited at SINTA, DOAJ and Scopus.
Arjuna Subject : -
Articles 267 Documents
 15   16   17   18   19 
ANALISIS PRIORITAS KEPENTINGAN DALAM PENENTUAN SISTEM PERSENJATAAN PADA PTTA MALE zaldiansyah zaldi; Y.H Yogaswara; Yayat Ruyat
ELEMEN : JURNAL TEKNIK MESIN Vol. 10 No. 1 (2023)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v10i1.229

Abstract

The weapon system's modernization is expected to anticipate a very conditional and fluctuating defense situation. One is developing Medium Altitude Long Endurance Unmanned Aircraft (PTTA MALE) vehicles by completing weapons systems to strengthen the national defense system. This study analyzes the technical specifications of weapons systems that meet user needs at PTTA MALE. This study uses qualitative and quantitative methods with research analysis using a Quality Function Deployment (QFD) approach. The analysis is carried out based on the priority scale value reference from the technical specifications of the user requirements. The research results obtained priority scale of operational requirements and technical specifications of weapons systems based on Benchmark Performance (BP) values, namely weapon load (84.31%), warheads (80.39%), guidance systems (68.63%), sensors ( 68.63%), target distance (68.63%), based on independence (63.40%), target type (63.40%), and explosion range (49.02%).
ANALISIS SIFAT MEKANIK KOMPOSIT SERAT BAMBU TALI SEBAGAI MULTILAYERED ARMOR SYSTEM Rosihan Ramin; Bondan Tiara Sofyan; Mas Ayu Elita Hafizah
ELEMEN : JURNAL TEKNIK MESIN Vol. 10 No. 1 (2023)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v10i1.231

Abstract

Natural fiber composites are an alternative Multilayered Armor System (MAS) material. One of the most common natural fibers used as MAS is a fiber made from bamboo rope. Bamboo fiber composites have a low density and a low manufacturing cost. However, in terms of mechanical properties, bamboo fiber composites have different characteristics. In this research, the mechanical properties of the bamboo rope fiber composite, which has an orientation of 0°/90°, will be analyzed. The composite materials used are bamboo rope fiber as a reinforcement and epoxy as the fiber binding matrix. From the mechanical tests performed, it was found that the average tensile strength of the bamboo rope fiber composite was 109.86 MPa. The bending strength is 95.32 MPa, and the shear strength is 34.11 MPa.
DESAIN OPTIMAL TERAS SMALL MODULAR MOLTEN SALT REACTOR (SM-MSR) SEBAGAI SISTROPULSI KAPAL PERANG EM P Cahyo Ridho Prabudi; Sovian Aritonang; Topan Setiadipura
ELEMEN : JURNAL TEKNIK MESIN Vol. 10 No. 1 (2023)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v10i1.238

Abstract

Utilizing a nuclear propulsion system as a source of propulsion is one method for extending the durability of warships. Compared to using natural oil, using nuclear energy as a propulsion system offers a high effectiveness value. The Molten Salt Reactor illustrates a reactor design that can be utilized on warships (MSR). The current MSR is still quite big. Therefore in this research, an optimal design of the Small Modular Molten Salt Reactor (SM-MSR) core will be adapted to the surface area of ​​a warship. From the simulation and optimization carried out with the MCNP software, the parameter used as a reference is criticality. The optimal fuel material composition is 1% Li and 2% U-235, with an optimal design geometry having a cell core pin radius of 0.8 cm, a pin cell blanket radius of 2.6 cm, and a core height of 160 cm. The initial design of the SM-MSR in this study had a negative coefficient of void reactivity.
ANALISIS STATIK BRACKET ROLL BRUSH MESIN TENSOR MENGGUNAKAN METODE FEA Yunnanta Adi Putra; M. Nushron Ali Mukhtar
ELEMEN : JURNAL TEKNIK MESIN Vol. 10 No. 1 (2023)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v10i1.246

Abstract

This research uses the finite element analysis method to examine the design and safety analysis of the bracket roll brush. The problem occurs when the bracket roll brush is deformed during the wetting process, which impacts the printout of the product, where the ink dirt is still attached. The bracket roll brush uses 6061 T6 aluminum material of 38 mm x 25 mm x 19 mm, and the weight generated from mass properties is ± 0.03 Kg. The loading variable on the bracket roll brush is 147 N, 172 N, and 196 N. The simulation results show that the bracket roll brush has a maximum stress value of 85.551 N/mm2, and the value at the maximum stress of the bracket roll brush is still below the material yield strength value of 275,000 N/mm2. The simulation results on the bracket roll brush have a maximum displacement value of 0.0035 mm. And the simulation results on the bracket roll brush have a minimum safety factor value of 3.214.
PENGARUH VARIASI BUSI DAN BAHAN BAKAR TERHADAP PERFORMA MESIN KENDARAAN RODA DUA 135 CC Artika, Kurnia Dwi; Imron Musthofa; Isworo, Hajar; Syahyuniar, Rusuminto; Fahriansyah, Rohmat
ELEMEN : JURNAL TEKNIK MESIN Vol. 10 No. 1 (2023)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v10i1.222

Abstract

Spark plugs are the most important thing in the combustion system. Spark plugs in internal combustion using gasoline significantly affect vehicle performance. Likewise, fuel use must follow the compression ratio in the combustion chamber. The purpose of this study was to obtain the effect of differences in hot, cold, and medium spark plugs on engine performance and also the effect of fuel differences in supporting the performance of pertalite and pertamax two-wheeled vehicles in supporting the performance of 135 CC two-wheeled four-stroke vehicles in 2009. The result with hot spark plugs will maximizer-pm, increasing torque and power with pertalite fuel—the effectiveness of increasing power by 31%.
ANALISIS AERODINAMIKA PADA SIRIP LIPAT ROKET ARTILERI KALIBER 300 MM Ahmad Novi Muslimin; Robertus Heru Triharjanto; Yayat Ruyat
ELEMEN : JURNAL TEKNIK MESIN Vol. 10 No. 1 (2023)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v10i1.223

Abstract

Aerodynamic analysis is an important part of the rocket design process. In this study, the analysis was carried out on the design of the 300 mm diametres artillery rocket fins. The rocket was developed to replace the TNI AD MLRS rocket, which is currently an imported product, so the geometry of the MLRS launch tube is a design limitation, and the rocket fins must be able to fold before launch. Aerodynamic analysis was carried out using the RASAero II flight speed Mach 2.0 application. Variations in the dimensions of the fins used in this study were: the length of the front and rear edges of the fins with variations in the size of 10, 30, and 50 mm, the thickness of the base of the fins with variations in the size of 5, 10 and 15 mm. The simulation results show that the folding fin size 50T5R has a drag force of 145 N and a lifting force of 1081 N, a fin with an optimal design. Based on natural frequency analysis, fins with sizes 10T5R, 10T10R, 30T5R, 30T10R, 50T5R, and 50T10R are fins with structural values safe from vibrational resonance.
PENGARUH KETIDAKPASTIAN NILAI PARAMETER TERBANG TERHADAP TITIK JATUH ROKET R-HAN 300 Riyadl, Ahmad; Triharjanto, Robertus Heru; Widodo, Pujo
ELEMEN : JURNAL TEKNIK MESIN Vol. 10 No. 1 (2023)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v10i1.226

Abstract

The impact point is the main parameter of the performance of an artillery rocket. During its flight, a rocket experiences uncertainty of some parameter’s value, which is caused by the condition of the rocket when it exits the launcher, the ever-changing atmospheric conditions, and fabrication imperfections. This disturbance will cause deviation on the impact point. This study aims to determine the deviation of the impact point of an artillery rocket due to the value uncertainty of several parameters that affect its flight trajectory, and this analysis will be used as a reference for designers and users in further design processes. Six degrees of freedom simulation calculates the rocket's impact point and deviation. The results showed that to minimize the impact point’s deviation, the quality of the launcher fabrication must be improved, predicting aerodynamics with CFD and firing the rocket at low wind disturbances.
ANALISIS KARAKTERISTIK STRUKTUR MATERIAL SWING ARM TERHADAP RESPON GETARAN ACAK PADA SEPEDA MOTOR HONDA SUPRA X 125R MENGGUNAKAN METODE ELEMEN HINGGA Winarno, Ilham; Marliana, Eka
ELEMEN : JURNAL TEKNIK MESIN Vol. 10 No. 1 (2023)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v10i1.227

Abstract

This research was conducted to determine the structural characteristics of each type of swing arm material of the Honda Supra X 125R motorcycle against random vibration responses. The random vibration response is modeled in modal analysis so that the value of natural frequency, maximum displacement, and correction factor that occurs can be identified. This research is based on FEM simulation by making 3D modeling using Autodesk Inventor software, which is then simulated using Ansys software. Based on the results of the FEM simulation, it was found that the most dominant mild steel material with the best response was SS400, with a maximum equivalent stress (von Mises) value of 16.601 MPa and a maximum displacement of 2.9109e–002 mm. The modal analysis results also show that the SS400 material has the most dominant response, with the highest average natural frequency in shapes 2, 4, and 5 modes, and has the smallest displacement value in shapes 1, 3, and 4 modes.
ANALISIS PRIORITAS KEPENTINGAN DALAM PENENTUAN SISTEM PERSENJATAAN PADA PTTA MALE zaldi, zaldiansyah; Yogaswara, Y.H; Ruyat, Yayat
ELEMEN : JURNAL TEKNIK MESIN Vol. 10 No. 1 (2023)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v10i1.229

Abstract

The weapon system's modernization is expected to anticipate a very conditional and fluctuating defense situation. One is developing Medium Altitude Long Endurance Unmanned Aircraft (PTTA MALE) vehicles by completing weapons systems to strengthen the national defense system. This study analyzes the technical specifications of weapons systems that meet user needs at PTTA MALE. This study uses qualitative and quantitative methods with research analysis using a Quality Function Deployment (QFD) approach. The analysis is carried out based on the priority scale value reference from the technical specifications of the user requirements. The research results obtained priority scale of operational requirements and technical specifications of weapons systems based on Benchmark Performance (BP) values, namely weapon load (84.31%), warheads (80.39%), guidance systems (68.63%), sensors ( 68.63%), target distance (68.63%), based on independence (63.40%), target type (63.40%), and explosion range (49.02%).
ANALISIS SIFAT MEKANIK KOMPOSIT SERAT BAMBU TALI SEBAGAI MULTILAYERED ARMOR SYSTEM Ramin, Rosihan; Sofyan , Bondan Tiara; Hafizah, Mas Ayu Elita
ELEMEN : JURNAL TEKNIK MESIN Vol. 10 No. 1 (2023)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v10i1.231

Abstract

Natural fiber composites are an alternative Multilayered Armor System (MAS) material. One of the most common natural fibers used as MAS is a fiber made from bamboo rope. Bamboo fiber composites have a low density and a low manufacturing cost. However, in terms of mechanical properties, bamboo fiber composites have different characteristics. In this research, the mechanical properties of the bamboo rope fiber composite, which has an orientation of 0°/90°, will be analyzed. The composite materials used are bamboo rope fiber as a reinforcement and epoxy as the fiber binding matrix. From the mechanical tests performed, it was found that the average tensile strength of the bamboo rope fiber composite was 109.86 MPa. The bending strength is 95.32 MPa, and the shear strength is 34.11 MPa.

Page 17 of 27 | Total Record : 267

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