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Jurnal Teknik Mesin
Published by Institut Teknologi Padang
ISSN : 20894880     EISSN : 25988263     DOI : https://doi.org/10.21063/jtm
Core Subject : Science, Engineering,
Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
JTM is a journal aims to be a peer-reviewed platform and an authoritative source of information. We publish original research papers, review articles and case studies focused on mechanical engineering and other related topics. All papers are peer-reviewed. JTM is managed to be issued twice in every volume (April and October). The Scope of JTM is: Energy Science and Engineering Applied Mechanics and Materials Design, Manufacturing and Product Development Control, Instrumentation and Robotics
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 247 Documents
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Manufacturing System Design of The 3-RRPaR Parallel Manipulator Anrinal, Anrinal; Kurnia Illahi, Redo; Yanto, Asmara
Jurnal Teknik Mesin Vol 14 No 2 (2024): Jurnal Teknik Mesin Vol.14 No.2 October 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to design a manufacturing system to produce the 3-RRPaR Parallel Manipulator Robot. The manufacturing system design includes Bill of Material (BOM), Operational Process Chart (OPC), Production Routing and Assembly Routing which will be used to calculate the Production Cost and Determination of the Selling Price. Some important components of the 3-RRPaR parallel manipulator include Box Controller, Actuator, Passive Link, Movable platform, Greeper and Frame. The manufacturing process of the 3-RRPaR parallel manipulator takes 33 working hours with a Production Cost of Rp 11.887.050,-.
Mitigating Cone Chute Telescopic Failures in Clinker Distribution Through Abrasion-Resistant Design Improvements Jalil, Abdul; Saferi, Rozi
Jurnal Teknik Mesin Vol 14 No 2 (2024): Jurnal Teknik Mesin Vol.14 No.2 October 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2024.v14.i2.45-55

Abstract

The cement industry plays a crucial role in supporting infrastructure development, making the smooth distribution of raw materials such as clinker essential for production efficiency. PT Semen Padang, a subsidiary of Semen Indonesia Group, produces clinker as a key intermediate material in cement manufacturing. One of the critical components in clinker distribution is the shiploader, responsible for transferring clinker from silos to the ship’s hold. However, frequent damage to the Cone Chute Telescopic component disrupts operations, increasing downtime and maintenance costs. This study aims to identify the root causes of Cone Chute Telescopic failures, propose durable design improvements, and develop applicable repair methods. A quantitative approach was employed through field observations and experimental analysis, focusing on the impact of clinker’s abrasive properties, high temperatures, and operational factors on component wear. A key solution implemented was the application of ceramic coating and 3mm steel plate lining to enhance resistance against abrasion. The study also explored the effects of cooling clinker before loading, optimizing chute design to reduce localized wear, and improving material selection for enhanced durability. Results indicate that clinker’s abrasive nature and high temperature significantly accelerate wear, particularly when ceramic coatings detach, exposing the fiber-reinforced material underneath. Additionally, structural issues such as inadequate suspension mechanisms and sensor malfunctions contribute to operational inefficiencies. The implementation of protective steel lining demonstrated a reduction in wear rates, suggesting a viable solution for extending component lifespan. The findings contribute to improving clinker distribution efficiency at PT Semen Padang and provide insights for the broader cement industry in enhancing the reliability of shiploading systems. Future research should focus on advanced composite materials and alternative cooling techniques to further mitigate clinker-induced wear.
Effect of Dynamic Load on Fiberglass and Coir-Based Hybrid Composite Stiffness Mastariyanto Perdana
Jurnal Teknik Mesin Vol 6 No 1 (2016): Jurnal Teknik Mesin Vol.6 No.1 April 2016
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2016.v6.i1.1-5

Abstract

The composites made from natural fibers have been widely used in the engineering field because the natural fiber-based composites have lightweight nature, relatively strong and environmentally friendly. The use the synthetic fiber-based composites reduced to obtain the environmentally friendly composites. In this study, the use synthetic fibers (fiberglass) reduced by adding coconut fiber (coir) on the composite mix. Composites in this study using the volume fraction of hybrid fiber 12% fiberglass and 18% coir. The volume fraction of fibers and epoxy hybrid is 30:70. This study aims to determine changes in stiffness of the hybrid composites due to dynamic loads. Hybrid composite loaded by 500, 1000, 1500, and 2000 cycles of the dynamic load. The test results show degradation of the rigidity of the hybrid composite. The stiffness decrease like presented by the ratio of E/Eo. The number of cycles of the dynamic load causes a decrease in stiffness hybrid composites. The stiffness of hybrid composites decrease because of dynamic load treatment reaches 30%.
Experimental Study of Heat Pipe for Solar Collector Heater Dian Wahyu
Jurnal Teknik Mesin Vol 6 No 1 (2016): Jurnal Teknik Mesin Vol.6 No.1 April 2016
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2016.v6.i1.6-14

Abstract

Heat pipes with a size of 0.0127 m diameter x 1.3 m lenght x 0.0008 m thick and absorber with a size of 1m length x 0.1 m width has been created and tested to be used as a solar collector heating element. Heat pipes are made using water as the heat transport medium and using a stainless steel mesh wick 120 as a tool that helps accelerate the flow of condensate inside the heat pipe. Testing of heat pipes will be do in two condition at an inclination of 30o , before the heat pipes selected as the heating element in the solar collector. Testing of heat pipe on the first condition is done by using 1,000 ml of hot water temperature of 100oC with the power supply of 20 watts as a heat source in the evaporator side and further testing of pipe heat was tested by direct solar radiation, this test is intended to see directly if heat pipe was made able to work in conditions that are expected. Tests are done to see the heat transfer capacity and response speed (τ) of the heat pipe. Based on testing obtained the fastest response in the heat pipes transfer of the heat contained in the filling ratio of 20% with the heat transfer efficiency of 75%.
Effect of Aluminium and Copper Powder Addition in Alumina Matrix on Bending Strength Hendriwan Fahmi; Yanto, Asmara; Sulaeman
Jurnal Teknik Mesin Vol 6 No 1 (2016): Jurnal Teknik Mesin Vol.6 No.1 April 2016
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2016.v6.i1.15-18

Abstract

The aim of this research is to find out the influence of the addition of aluminum (Al) and copper (Cu) on matrik alumina (Al2O3) against the forces of bending. Of aluminum made by a process of water and atomization of copper made by the process of atomization centrifugal. Consisting of copper aluminum and continued with a sifting using a measure of 50 - 100 mesh up to get the size of the amounting to 150 - 125 µm. of the measures followed by the process of mixing with the variation of a composition of 100 % of the volume of Al2O3, 90 % of the volume of Al2O3 + 10 % heavy Al and Cu, 80 % of the volume of Al2O3 + 20 % heavy Al and Cu, 70 % of the volume of Al2O3 + 30 % heavy Al and Cu, al2o3 + 60 % of the volume of 40 % heavy Al and Cu. Then will be the process of compacting with pressure 140 MPa. The process of sintering committed using furnace with the temperature 1050 OC by heating rate 5 OC / minute. In this research voltage power bending highest obtained in composition 80 % of the volume of Al2O3 + 20 % heavy Al and Cu to voltage bending average of 6,66MPa.
Automatic Sand Sieving Machine with Three Sieves Nofriady Handra; David A.; Randa J
Jurnal Teknik Mesin Vol 6 No 1 (2016): Jurnal Teknik Mesin Vol.6 No.1 April 2016
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2016.v6.i1.19-23

Abstract

Sand is the base ingredient in the development process. In addition, the material cannot be separated sand use in the industrial world. Often in industrial buildings and workers needed sand material that has been processed. Sand material is usually still mixed with rocks or gravel. To get fine sand material, do the sifting process. The sieving process is carried out in order to get ready for the sand used in the process. The design of this sand sifter tools will provide convenience and a better process when compared with the work done traditionally. Benefits of making the application of automatic sand sieving machine can help the construction workers, especially in the process of building the sand processing to several functionality and usability. And can be used to produce maximum results in conditions that are not limited in the field. The purpose of making sand sifter tools this automated system is to ease the work in process and streamline the shifting sands of time, economic and workforce. The process of making this tool consists of four main processes, manufacture sifter, frame and hopper manufacture, manufacture of other supporting components, and assembly of all components. From the results of tests and experiments, that for 20 kg of the starting material that contains sand and stone (gravel) is processed only takes approximately 25 seconds to produce three types of the filter sand and stone as well. In general, the innovation of this tool enabled us to increase production of larger sieve in a short time, for development work on a large scale; this tool is suitable for generating a large amount of production that would be more economical in terms of time and cost.
The characteristics of Coconut Fiber-Based Composites And Sugar Fiber-Based Composites Asfarizal
Jurnal Teknik Mesin Vol 6 No 1 (2016): Jurnal Teknik Mesin Vol.6 No.1 April 2016
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2016.v6.i1.24-31

Abstract

Composites made from natural plant fibers that are environmentally friendly is now more attractive, lighter weight, the number of abundant, renewable, competitive prices has encouraged the use of a broad field of engineering, building interiors and clothing. The characteristics of each fiber is highly variable and influenced by the maturity of fiber materials, processing into fiber, perlakauan after so fibers and fiber treatment. Known properties of fiber can help choose the method that is right and good to be applied in the manufacturing process of composite. Pretreatment, composition and matrix settings, select the type of adhesive is a method that is widely used to obtain physical and mechanical properties superior but physical properties and mechanical produced highly variable and not consistent.
Design of Undershot Waterwheel Curved Blades as Picohydro Power Plant Generation in Tamangil Village KristianusJamlay; Luther Sule; Duma Hasan
Jurnal Teknik Mesin Vol 6 No 1 (2016): Jurnal Teknik Mesin Vol.6 No.1 April 2016
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2016.v6.i1.32-37

Abstract

Utilization of hydropower plants picohydro recognized scale capable of meeting electricity demand, especially in areas not reached by the electricity such as rural areas. This study aims to analyze high waterfall (head), discharge and water resources available as well as the design of a water wheel undershot the current model corresponding curved blade. This research was conducted in the village of TamangilNuhuten the main object studied is the flow of the waterfall in the village. Primary and secondary data obtained through this study and Field and Library Research with stages such as the construction of drains, water discharge measurements, high measurement waterfall further analyzed quantitatively while the Library Research stages, namely the study of literature (book review). The results showed that the critical velocity water flow (v = 2.45 m/s), effectively head of waterfall (h = 2 m), the discharge of water used (Q = 0.0392 m3/s), and water power are utilized (Pair = 769.65 Watts). From the design obtained that rotation shaft (np = 78.08 rpm), tangential velocity (U = 2.45 m/s), the angular velocity of water wheel (ω = 8.1724 rad/s), the force on the water wheel (F = 96.18 N), torque at the wheels of water (T = 28.85 Nm), electric power that can be generated by a water wheel (Pwater wheel = 235.80 Watt), as well as maximum power efficiency obtained theoretical water wheel (ηteo = 30 59%) and the efficiency of water wheel axle (ηpra = 85.721%). Based on calculations assuming that there will be changes in water flow rate, it is known several important parameters including torque, mass flow rate, rotation, and power and maximum efficiency of water wheels is increasing. It was concluded that the flow of the waterfall village TamangilNuhuten potential to be used as a hydroelectric plant scale picohydro with water wheel underhot the current type and model of blade bent. Among torque, mass flow rate, rotation axis, and the water wheel power is proportional to the maximum efficiency. Hopefully, by the hydroelectric power plants pikohydro scale, it can meet the electricity needs of residents in the TamangilNuhuten village.
Strength Analysis of Betelnut Fiber-Reinforced Resin Composite Hendriwan Fahmi; Yanto, Asmara; Fajar Marda Kapur
Jurnal Teknik Mesin Vol 6 No 2 (2016): Jurnal Teknik Mesin Vol.6 No.2 October 2016
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2016.v6.i2.87-92

Abstract

Material is needed in life, the material itself is used aims to facilitate human activities, in the development of modified human material in various ways, one of which composite materials. Composite is a combination of two or more elements that get combined properties of the elements combined. Liquid Epoxy resin is a low molecular weight organic group containing epoxide. The composite material used is a fiber reinforced resin nut shell. Point of this study is know tensile strength of fiber nut shell composite, variations in the composition of the epoxy resin and fiber nut shell made in this study was 90:10%wt, 80:20%wt, and 70:30%wt, fiber length of 2 cm with random fiber orientation. This experiment is the tensile test. Tensile test was conducted to determine the tensile stress each - each composition, the standard used is ASTM 638 02. From the test results obtained on the composition of the composite tensile strength of 90: 10% wt is 9.8 MPa, the composition of 80: 20% wt was 13.06 MPa and the composition of 70: 30% wt is 14.04 MPa. Of the fracture surface can be seen that the fibers are well distributed and the bond between resin and fiber is also more evenly so that the tensile strength increased.
The Effect of Pressure on the Manufacturing Process of Composites Made from Candlenut Shells and Candlenut Shell Charcoal/Epoxy on Density and Microstructure gustio mitro; Perdana, Mastariyanto; Pratiwi, Putri
Jurnal Teknik Mesin Vol 14 No 2 (2024): Jurnal Teknik Mesin Vol.14 No.2 October 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2024.v14.i2.56-63

Abstract

Candlenut shell waste has not been widely utilized, especially in the field of material technology. In this study, innovation was carried out on the management of candlenut shell waste with the aim of reducing candlenut shell waste into something useful as a composite of candlenut shell/epoxy. Candlenut shells are ground into powder and sieved on the powder with a mesh of 50-80 with a powder size of 177-297µm. To obtain shell charcoal powder, candlenut shells are carbonized after that ground into powder and sieved with a mesh of 100-200 with a powder size of 74-149µm. While for epoxy resin, it is mixed with a ratio of resin to hardener (2:1). The mixture ratio of candlenut shell composite%, candlenut shell charcoal%, and epoxy resin% is (45:10:45). The printing of the test sample used the printing method, the mold was pressed with a pressure of 21 kg/cm2, 25 kg/cm2, 28 kg/cm2, 32 kg/cm2, 35 kg/cm2 for 24 hours. The sample testing in this study was observation of the microstructure and density testing. In the density test and observation of the microstructure, where the best pressure among the other pressures was at a pressure of 32 kg/cm2 because it can be seen from the density value of 1.14????????/????????3 and the relative density result value of 87%. The things that affect the density test and observation of the microstructure are the comparison at each pressure, the increase in pressure that produces a composite with good physical properties, namely the results of the density data prove an increase in its density and observations of its microstructure prove an increase in the density of the good powder particle composite.

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