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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, Fakultas Teknik, Universitas Mataram. Jl. Majapahit no. 62, Mataram, NTB, 83125, Indonesia. Phone: +62(0370)636087, WA: 082111738971.
Location
Kota mataram,
Nusa tenggara barat
INDONESIA
Dinamika Teknik Mesin
Published by Universitas Mataram
ISSN : 2088088X     EISSN : 25021729     DOI : https://doi.org/10.29303/dtm.v12i1
The Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin is aimed to desiminating and sharing the scientific research results, simulations, and computation to reseachers, students, and practitioners around the world. It is a peer-reviewed academic journal which publishes originally research papers and 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. However, due to administrative constraints, then starting in January 2018, the Dinamika Teknik Mesin publishes the volume and issue in January and July.
Articles 260 Documents
Analisis emisi gas buang dan daya sepeda motor pada volume silinder diperkecil I.M. Mara; I.M.A. Sayoga; I.G.N.K. Yudhyadi; I.M. Nuarsa
Dinamika Teknik Mesin Vol 8, No 1 (2018): Dinamika Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (379.519 KB) | DOI: 10.29303/dtm.v8i1.154

Abstract

This research aims to determine the effect of variations diameter pistons on exhaust emissions and fuel consumption. This research used a gasoline engine single-cylinder four-stroke  with variations in cylinder volume 100 cc, 90 cc, 60 cc and engine rotation  1500 rpm, 2500 rpm, 3500 rpm, 4500 rpm, 6000 rpm. Data was collected in transmission N, 1, 2, 3, and 4 each of the three repetitions for each round engine rotation, using a gas analyzer 2400 ultra 4/5 IM Hanatech brand for exhaust emission of CO and HC. Based on data analysis, it can be concluded that with decreasing diameter of piston up to 60 cc can reduce exhaust emissions, especially CO, HC and fuel consumption. The highest HC exhaust emissions was in 100 cc cylinder volume that is equal to 514.33 ppm while the lowest HC emissions obtained in 60 cc cylinder volume at 49.67 ppm. The highest CO emission was obtained on 100 cc cylinder  by 4.64% volume, while the lowest CO emission was obtained on 60 cc cylinder by 0.31% volume. The highest CO2 emissions obtained in 60 cc cylinder amounted to 17.60% volume, while the lowest CO2 emission obtained at 100 cc cylinder  amounted to 8.37%  volume, and the highest fuel consumption obtained in 100 cc cylinder  at 0.65 kg/h, and the lowest fuel consumption obtained in 60 cc cylinder  by 0.06 kg/h.
Peningkatan kinerja pompa hidram berdasarkan posisi tabung kompresor dengan saluran keluar di bawah tabung kompresor I Gede Bawa Susana; Rudy Sutanto
Dinamika Teknik Mesin Vol 6, No 2 (2016): Dinamika Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (555.482 KB) | DOI: 10.29303/dtm.v6i2.14

Abstract

Hydraulic ram pump is operated without fuel and only rely on the height difference of the water source. tube compressor serves to continue the flow of water and increase the pressure in the hydraulic ram pump. To improve the performance of the hydraulic ram pump, experiment with variable position of the tube compressor has been done. The tube compressor is placed on the side of the valve after intake and waste, as well as with an outlet at the bottom of the tube compressor. The experiments were performed on the flow of water from a height of 2.1 m, 2.6 m, 3.1 m, 3.6 m and 4.1 m. The test results showed that the position of the tube compressor affect the performance of the hydraulic ram pump. Tube compressor is placed after the input side and the waste valve has a value greater than the tube compressor that is placed between the input and exhaust valves. The volumetric flow rate output, maximum head, suction force, and the largest thrust force obtained at a height of 4.1 m with the results of each 0.121 l / sec; 16 m; 156.499 N; and 89.48 N. While the largest pump efficiency obtained at a height of 3.1 m waterfall which is 2.618%.
PENGARUH VARIASI KUAT ARUS LISTRIK DAN WAKTU PROSES ELECTROPLATING TERHADAP KEKUATAN TARIK, KEKERASAN DAN KETEBALAN LAPISAN PADA BAJA KARBON RENDAH DENGAN KROM Arif Surya Darmawan D.P; I Dewa Ketut Okariawan; Nasmi Herlina Sari
Dinamika Teknik Mesin Vol 5, No 2 (2015): Dinamika Teknik Mesin
Publisher : Universitas Mataram

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Abstract

The usage of carbon steel at present is growing rapidly. The carbon steel is commonly used in the machining appliance and material construction, as well as oil or gas piping. Improvement of physical properties of steel can be performed by electroplating. The goal of this research was to prove the influence variation of strong electric current and processing time electroplating tensile strength, hardness and layer thickness on low carbon steel with chrome. The benefits of this research is to gain the information about a strong in fluence of electric current and time again sthardness and thickness of thetensile strength of low carbon steel with chrome plating.This research using low carbon steel coated by electroplating method with variations strong electric current 17.8A, 22.7A and 27.3A, and the length of processing 5, 10, and 15 minutes. The type of testing which done are to test the thickness, the hardness and tensile test. The processing of data were analyzed using analysis of variance two-way.Thickness layer of chrome increased along with increasing strong currents and the length of time coating. The highest value of the thickness chrome layer with strong currents occur in the calculation of 27.3A and with in 15 minutes of 0.00015 as well as microscope observation of 0.483 where there is a difference between calculation and observation microscope 400X magnification ranges from 99.9%. The highest hardness values obtained with strong currents 27,3A and within 15 minutes of 23,58 VHN  or 12,621% harder  compare with raw materials. For tensile test itself was increasing tensile strength with the highest value of 627.8 N / mm2 or 6.65% more than raw material.
Dinamika Teknik Mesin January 2015 Dinamika Dinamika
Dinamika Teknik Mesin Vol 5, No 1 (2015): Dinamika Teknik Mesin
Publisher : Universitas Mataram

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Abstract

Dinamika Teknik Mesin January 2015
PENGARUH IGNITION TIMING DENGAN BAHAN BAKAR LPG TERHADAP UNJUK KERJA MESIN BENSIN EMPAT LANGKAH SATU SILINDER Made Mara; Made Wirawan; Towilan Ma’bud
Dinamika Teknik Mesin Vol 4, No 1 (2014): Dinamika Teknik Mesin
Publisher : Universitas Mataram

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Abstract

Shortage of petroleum in Indonesia is a problem that triggers people to look for alternative fuels derived fuel. One of them is the use of LPG fuel as motorcycle fuel. And to improve the performance and efficiency of the use of LPG fuel in vehicles is one of them by varying the ignition timing.The aim of this study to explore the effect of ignition timing on the torque, power and specific fuel consumption effective (SFCE) with LPG fuel using converter kit on petrol engine four stroke single cylinder Honda Astrea Prima 100 cc. In this study, the ignition timing is varied at 15˚, 17˚, 19˚ and 21˚ before TDC and to set engine rotation at 1500 rpm, 2500 rpm, 3500 rpm and 4500 rpm.The results of the experiments conducted in this study show a better performance of the engine when the ignition timing advanced earlier. Highest torque at 17˚ before TDC is 0,507 kgf.m at 4500 rpm, the highest effective power at 17˚ before TDC is 3,183 PS at 4500 rpm, and the lowest SFCE at 17˚ before TDC is 0,084 kg / jam.PS at 4500 rpm.
ANALISA PENGARUH VARIASI BENTUK ABSORBER PADA ALAT DESTILASI AIR LAUT TERHADAP KENAIKAN SUHU AIR DALAM RUANG PEMANAS DAN JUMLAH PENGUAPAN AIR YANG DIHASILKAN Aldi Mukaddim; Made Wirawan; Ida Bagus Alit
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 3, No 2 (2013): Dinamika Teknik Mesin
Publisher : Universitas Mataram

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Abstract

Clean water is a requirements of very important human life. Indonesia is a maritime country that has many islands surrounded by ocean, had a decreased clean water problem. One of the method to be used for obtain clean water is sea water distillation process. One of the most important tools is absorber distillation. occurs heat transfer from the absorber to the sea water causing, rising sea temperatures cause sea water to evaporate. The rising temperature of the sea water increases the amount of evaporation that occurs. The more the amount of evaporation generated will increase the number of fresh water produced. Increased seawater temperatures by increasing the temperature absorber, so it needs to be analyzed shape of the absorber which one can be produce more clean water than the others, a conclusion of the study indicated that solar distillation plat shape with a huge wave absorber produces more clean water than the others , the average amount of water that is more of 908 ml, compared with a small wave absorber plate only produce 764.4 ml  average a day and a flat plate absorber only produce 599 ml average a day, it is not independent of heat absorption by absorber, solar distillation plat shape with a huge wave absorber absorbs more heat than the other two absorber plates, this has resulted in solar distillation  shape with a huge wave  absorber plate  very well produce more water than the otehrs. 
Analisis Variasi Jarak Sumbu Poros Terhadap Tegangan Kontak Dan Tegangan Bending Pada Helical Gear Pair Berdasarkan Metode Elemen Hingga Sopyan Ali Rohman; IDK Okariawan; Achmad Zainuri
Dinamika Teknik Mesin Vol 2, No 2 (2012): Dinamika Teknik Mesin
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Abstract

This researchs object is determining  the effect of modifying center distance to bending stress and contact stress on the helical gear pair based on the finite element method. And to know the safety factor on each center distance variation within helical gear pair.Gear being analyzed is one of the gears on Honda motor cycles branded Beat. To know the specification of gear, the helical gear geometry measurements were taken. Based on the results of measurements was carried out models of helical gear pair by AUTO CAD software. Then,  bending stress and contact stress analysis with finite element method on  ANSYS 12.1. Optimal center distance of gear pairs is determined by safety factors on the quasi statatis condition.From the research results can be concluded that the change of center distance can affect the bending stress and contact stress on gears and affect of security design. A safe center distance variation is 52.65 mm, 52,75 mm, 52,85mm and 52.95 mm.
ANALISA LAJU PERPINDAHAN PANAS PADA KOLEKTOR SURYA TIPE PELAT DATAR DENGAN ABSORBER PASIR Made Wirawan; Rudy Sutanto
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 1, No 2 (2011): Dinamika Teknik Mesin
Publisher : Universitas Mataram

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Abstract

Solar energy constitute one of potential alternative energy to develop as a back up of energy. Especially for countries in khatulistiwa location belonging to Indonesia. For use solar energy needful collector that using absorber. Using sand as a absorber make up step for increase value and profit of sand, in a economics manner the price more cheap and easy to obtain than another absorber. The analysis use sand as a alternative absorber for solar collector did for understand rate of heat transfer to acceptanceof water. Dimention of collector are 560 mm x 310 mm with thick of sand absorber 10 mm and 1.2 mm for aluminum plate as a comparator. Observation did begin 10.00 am until 14.00 pm for the two of them in the weather clear sky. The rate of water in this research are 200 cc/min, 250 cc/min and 300 cc/mn for another dan at the same time. The result of analysis be obtained heat absortion by water for solar collector with aluminum absorber more large than sand absorber. The debit of water more and more large in the collector so absorb heat by water more large because incretion the mass flow rate of water (m  ). The heat losses in the solar collector aluminum absorber more than sand absorber.
PEMBUATAN BIODIESEL DARI KELAPA DENGAN METODE KERING Yesung Allo Padang; Mirmanto Mirmanto
Dinamika Teknik Mesin Vol 1, No 1 (2011): Dinamika Teknik Mesin
Publisher : Universitas Mataram

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Abstract

Producing biodiesel by dry method has been conducted in the Laboratory of Energy Conversion, Mechanical Engineering Department, Mataram University. In the conventional method, coconut flesh is scrabbed and then squizzed to separate the coconut milk then from this milk obtained oil. In dry method, the flesh is cut in to small pieces then cook in the sealed container.Its vapor is collected , condensated and eventually oil is produced.By transesterification process biodiesel is obtained. The combination of metanol : coconut oil is varied as follow :10 (K0), 1:10 (K10), 2:10 (K20), dan 3:10 (K30). Biodiesel produced is then tested to evaluate its specific gravity,kinematic viscosity,flash point and calorifiec value.The result show that increased methanol concentration reduced specific gravity,kinematic viscosity,flash point and calorifiec value. Specific gravity for K0, K10, K20, and K30 in the transesterification process are 0.864, 0.851, 0.849, and 0.843, respectively. Kinematic viscosity for K0, K10, K20, and K30 are 5.65 mm2/s, 4.80 mm2/s, 4.29 mm2/s, and 3.52 mm2/s, respectively. Flash point for K0, K10, K20, and K30 are 62.330C, 58.670C, 54.670C, and 520C. Calorifiec value for K0, K10, K20, and K30 are 19601.842 Btu/lb, 19105.375 Btu/lb, 17803.337 Btu/lb, and 16548.844 Btu/lb.
Sampul Dinamika Teknik Mesin June 2017 Dinamika Dinamika
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 7, No 1 (2017): Dinamika Teknik Mesin
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Abstract

Sampul Dinamika Teknik Mesin June 2017

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