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Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin

DTM
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Published by Universitas Mataram

ISSN : 2088088X EISSN : 25021729 DOI : https://doi.org/10.29303/dtm.v14i1

Core Subject : Science, Engineering,

Aerospace Engineering Automotive Engineering Mechanical Engineering Physics

The Dinamika Teknik Mesin is a peer-reviewed academic journal which publishes originally research papers or simulation/computational articles in all aspect of Mechanical Engineering such as energy conversion, materials, design and production/ manufacturing. The Dinamika Teknik Mesin publishes in two issues per volume annually appearing in June and December. Due to administrative constraints, then starting in January 2018, the Dinamika Teknik Mesin publishes the volume and issue in January and July. However, starting in 2020, the Dinamika Teknik Mesin publishes issues in April and October due to the new administration.

Arjuna Subject : Teknik (semua kategori) - Teknik Mesin

Articles 452 Documents

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Pengaruh waktu dan jarak electroplating nikel pada baja karbon rendah terhadap kekerasan permukaan S. Salman; I.M.A. Sayoga; I.D.K. Okariawan; S. Sinarep; R. Sutanto; A. Wiranata
Dinamika Teknik Mesin Vol 9, No 1 (2019): Dinamika Teknik Mesin
Publisher : Universitas Mataram

Electroplating is the process of coating an object with other metals that utilizes electricity in electrolyte liquid. In this research the carbon steel as anode material was coated by steel using nickel as catode. The electroplating times and distances of anode catode were varied 6, 9, and 12 minutes and 150, 200, 250 mm. The hardness of the coated materal was evaluated later on by using micro vikers hardness testing. The result indicates that increasing the electroplating time rises the hardness values. The effect of the electroplating time on the harness is significant while the effect of the electrode distance is not.

Analisis pengaruh profil sudu dan jumlah sudu terhadap unjuk kerja turbin angin poros horizontal pada daerah kecepatan angin rendah I.K. Wiratama; I.D.K. Okariawan; I.G.N.K Yudhyadi; I.M. Mara; A. Juliansah
Dinamika Teknik Mesin Vol 9, No 1 (2019): Dinamika Teknik Mesin
Publisher : Universitas Mataram

Wind Energy is one of the renewable energy sources, therefore utilizing wind energy during this time is very wide. Indonesia has enormous wind energy potential with wind speeds between 2 m/s to6 m/s, and especially in the Nusa Tenggara region can reach wind speeds> 5 m/s. To enable rising solar energy (10 kW) and (10-100 kW).This research was conducted to obtain the performance characteristics of horizontal axle wind turbine with variation of blade profile and number of different blades in each test. Wind source is obtained with the help of wind power 7 m/s wind speed. The shape of the blade that is used there are four variations of the big taper, half thin small, half tapered and small taper. The test is also carried out with variations of the blade amounts of 3, 4, 5 and 6.The results are shown in the graph of the number of blades against the rotation of the rotor, the amount of the blade to the rotor rotation after braking, the amount of the blade to the rotor power, the amount of the blade to the torque, the amount of the blade to the cpR and the amount of the blade against the Speed Ratio Tip (TSR). The maximum rotor rotation speed is generated on the form of a large tapered blade with an amount of 3 blades of 865.76 rpm. The maximum rotor and torque power is generated on the form of a large tapered blade with an amount of 4 blades which is 182.01 Watt and 3.25 Nm. Maximum CpR is produced on the form of a large tapered blade with an amount of 4 blades which is 0.48 as a result of TSR of 8.69. So of all variations done, the best result results on a large tapered blade with 4 blades

Sampul Dinamika Teknik Mesin, vol. 9, no. 1, Januari 2019 M. Mirmanto
Dinamika Teknik Mesin Vol 9, No 1 (2019): Dinamika Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (260.947 KB)

Sampul Dinamika Teknik Mesin, vol. 9, no. 1, Januari 2019

Cover volume 9 no 2 July 2019 M. Mirmanto
Dinamika Teknik Mesin Vol 9, No 2 (2019): Dinamika Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (260.133 KB)

Cover volume 9 no 2 July 2019

Analisa unjuk kerja alat pembagi tekan pada pompa hydram Wardani, K.
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

Water is source of life for human being, plant and animal. One of effort to complete of water required is by using hydram pump. Hydram pump (Hydraulic ram pump) is a pump that work without required energy from outside for its activated, but work done by exploiting force from source of water. This research purposes to know influence of pressure divisor to water hammer effect and to know influence of pressure divisor to efficiency of hydram pump. This research used hydram pump by the specification of air tube it’s 60 cm height and 3 inches diameter. Elevation of plunge from pump body is 2 meters and elevation of output is 4 meters. Height of air tube at pressure divisor that is 20 cm, 30 cm, 40 cm and 50 cm and elevation of variaty pressure divisor from body pump is 2 meters, 2,5 meters and 3 meters. The method used in this research is experiment method. The quantitative data made in table and displayed graphically. The results show that the highest of maximum head at 2 meters elevation of pressure divisor from pump body and 20 cm high of tube, while lowest of maximum head at 3 meters elevation of pressure divisor from pump body and 50 cm high of tube. The best efficiency at 2 meters elevation of pressure divisor from pump body and 20 cm high of tube that is 31,62%, while the lowest efficiency at hydram pump installation without of pressure divisor that is only 26,62%.

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

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.

Simulasi parameter geometri regenerator mesin termoakustik Nurpatria, N.; Syahrul, S.; Pandiatmi, P.; Sayoga, I.M.A.; Mulyanto, A.
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

The utilization potentials of biomass energy in Indonesia is very large. As modeled in this paper, the energy carrier flue gas from biomass combustion in the form of heat and temperature is applied as thermodynamic source for the thermoacoustic engine model. Therefore, 33 different models were constructed, modified, and tested in DELTA-EC software simulation in order to reveal their capability. The performance based on the criterion of their acoustic power output and efficiency in a set of various combination of two regenerator geometry parameters applied, radial cross-sectional area and length. The simulation results show that greater the cross-sectional area, greater the acoustic power and engines efficiency. The smallest regenerator size is at 80 mm2 cross-sectional area and 54 mm length, generates acoustic power of 5.812 W with its corresponding efficiency of 0.686%. While the biggest regenerator in volume at 120 mm2 and 165 mm in size, be able to amplified acoustic power up to 22.810 W with efficiency of 2.693%. An engine model with the highest performance produces acoustic power of 25.848 W and efficiency of 3.051%. This model uses an optimal regenerators dimension with 120 mm2 area at length of 150 mm.

Improving the surface hardness number of subsoil plow chisel using water-jet preening Sujita, S.
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

This study discusses the effects of pressure in waterjet peening (WJP) of subsoil plow chise. It was made from austenitic stainless steel 301 JIS standard S30100. Analysis of surface integrity and change of surface hardness number is used to evaluate the performance of various parameters in the WJP process. The article summarizes information about austenitic stainless steel physically-mechanical of subsoil plow chisel that is most useful for soil tillage. The subsoil chisel was given surface treatment WJP process with a variation of pressure and time. The physical properties of subsoil plow chisel from various pressure and time of WJP are analyzed. The findings of this study indicated that surface treatment with waterjet peening could increase the surface hardness number and the hardening layer fromaustenitic stainless steel 301 (material of subsoil plow chisel).Treats the surface with WJP pressure 250 MPa and time 3 hours results in a higher increase in surface hardness number up to 41% and 151% greater than the raw material respectively. Also, a deeper hardening layer to depth 250 and 500 μm each produced. Next, the cross-sectional micro structure shows the density is higher than the slip band in the defective grain of specimens that have undergone the WJP process at the time and higher pressure. However, the number of slip bands in grain defects decreases with the pressure drop.

Analisa pengaruh jumlah indentasi dan distribusi tegangan geser pada sambungan perekat baja-baja (paper ini telah dicabut) Salman, S.; Sugiman, S.; Sulistyawati, E.D.; Zainuri, A.; Robiansyah, R.
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

Adhesive joints are widely used in automotive industry and shipping industry. Efforts to increase the strength of the connection are still underway. This study aims to determine the effect of the amount of indentation on shear strength on low carbon steel joints and the failure mode when the number of indents is different. The connection was made of low carbon steel with epoxy adhesive as adhesive and adhesive thickness of 0.3 mm. The number of indents varied; with and without indentations 4, 9, 16, and 25 respectively. The indentation process was made by using pillar drilling with 1.5 mm diameter of drill bit. From the results, the specimen without indentation had highest shear strength was about 22 MPa. Connection strength tended to decrease with increasing indentation. By finite element modeling, the distribution of shear stress tended to be uniform without indentation, and the stress at the end of the connection for indented connections was higher than without indentation.

Design and manufacture of cylindrical rings using the centrifugal casting method as an alternative to improving the quality of cast products S. Gunara; R. Kusnowo
Dinamika Teknik Mesin Vol 9, No 2 (2019): Dinamika Teknik Mesin
Publisher : Universitas Mataram

Cylinder ring is a material for making piston rings, where the piston ring is one of the engine components that are produced by the automotive industry. At present, cylinder rings are made using the gravity casting method. But when the process of making cylindrical products using the gravity casting method, a channel system is needed so that the yield produced is so low. In addition, cast products produced by this method often have defects in the form of gas cavity defects due to the use of cores and fins caused by parting lines. This research was conducted to design and manufacture of cylinder rings using the centrifugal casting method as an alternative to improving the quality of cast products. The research process included cylinder ring design, speed experiments, cylinder ring manufacturing, visual checking before and after machining processes on Ferro Casting Ductile 500 (FCD 500) materials with a carbon composition range of 3.6-3.8%, silicon 1.8-2 , 8%, max. Manganese 0.3% and the range of pouring temperature 1350ºC-1280ºC. The results of this study proved that cylindrical ring products designed and made using the centrifual casting method with a 600 rpm motor rotational speed have no defects in the gas cavity and fins arise and produce a 95% yield.

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Nusa tenggara barat

INDONESIA

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Home Page

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Contact Email dinamikateknikmesin@gmail.com

Phone +6282111738971

Journal Mail Official dinamikateknikmesin@gmail.com

Editorial Address Jurusan Teknik Mesin, FT, Universitas Mataram, Jl. Majapahit no. 62, Mataram, NTB, 83125, Indonesia

Location Kota mataram, Nusa tenggara barat INDONESIA

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Contact Name
Mirmanto

Contact Email
dinamikateknikmesin@gmail.com

Phone
+6282111738971

Journal Mail Official
dinamikateknikmesin@gmail.com

Editorial Address
Jurusan Teknik Mesin, FT, Universitas Mataram, Jl. Majapahit no. 62, Mataram, NTB, 83125, Indonesia

Location
Kota mataram,

Nusa tenggara barat

INDONESIA