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Jurnal Ilmiah Teknik Mesin
Published by Universitas Lampung
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
Mechanical Engineering
Arjuna Subject : -
Articles 11 Documents
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Search results for , issue "Vol 1, No 1 (2013)" : 11 Documents clear
PEMBUATAN SISTEM OTOMASIUNTUK PENGATURAN MEKANISME KERJA MESIN CETAK KERUPUK MENGGUNAKAN MIKROKONTROLER ATMega Aang Sukendar; . Martinus; Novri Tanti
Jurnal Ilmiah Teknik Mesin Vol 1, No 1 (2013)
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Developments in science and technology has increased very rapidly. One is the industrial field. At home industry (home industry) required a more sophisticated production system in order to maximize production. Engine control system working mechanism of crackers is an idea to create an automated system on a machine that makes in terms of operation. Has created a working mechanism controlling printing using Microcontroller ATMega 16 crackers. The system uses a microcontroller to control the relay drivers to switch on or switch off the AC motor. Optocoupler sensors and limit switches as an input to set the working mechanism of the machine automatically.The test results show that the driver relays are used to control the mechanism of action machine can work well. Similarly optocoupler sensor and AC motors as propulsion machinery.Keywords: Home industry, printing machines crackers, driver relay, optocoupler, limit switch, microcontroller.
PERANCANGAN ALAT UJI GESEKAN ALIRAN DI DALAM SALURAN Jhon Fitter Siregar; Jorfri B Sinaga
Jurnal Ilmiah Teknik Mesin Vol 1, No 1 (2013)
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Mechanical Engineering Department, University of Lampung has been established since 1998 and implementation of the learning process at this Department supported by ten laboratories. One of these laboratory is laboratory of Mechanical fundamental phenomena. But testing equipment available until now in this laboratory is still lacking. In this paper is given, design an analysis of test result of friction flow in channel testing equipment, with channels used are: circle, triangel, square with hydraulic diameter of Dh . Results of testing equipment show relationship between friction factor f and Reynolds number close to the graph on Moody diagram in the textbook of fluid mechanics. That means, this friction flow in channel testing equipment can be used to support laboratory work of mechanical fundamental phenomena in the Mechanical Department Engineering, University of Lampung.Keywords: Design, friction factor, laboratory work, mechanical fundamental phenomena.
PERILAKU CREEP PADA KOMPOSIT POLYESTER YUKALAC 157 BQTN-EX DENGAN FILLER SERAT GELAS Dodi Marlin; . Sugiyanto; . Zulhanif
Jurnal Ilmiah Teknik Mesin Vol 1, No 1 (2013)
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Research aims to investigate the creep behavior of the composite which made from polyester resin with fiberglass filler. Composites are composed from fiber glass with pararel oriented, then the composition of the fiber volume to matrix are vary at 5%: 95%, 10%: 90%, and 15%: 85%.Composite then casted based on dimensions listed in ASTM D2990. Composites tested with the tensile test to determine the tensile strength of the composite. The test is continue with creep testing by providing creep load on the testing 60% of the tensile strength. In order to know the mechanism of failure in the plane of composite fracture, SEM is used to observing it. The test result showed that the composite with the volume composition of the fiber versus matrix : 15 %: 85%, has the longest time of all variations although just only 1000 seconds.The low creep time due to presence of voids in the composite matrix, fiber breaking, pull out, debonding at the fiber and also the influence of loading during creep testing are not uniform.With a maximum creep only 1000 seconds, the composite results of this study are not feasible to be applied in both the shipping industry andautomotive.Keywords: polymer composite, Polyester, Fiber glass, creep behaviour
PENGARUH PENAMBAHAN ZAT ADITIF ALAMI PADA BENSIN TERHADAP PRESTASI SEPEDA MOTOR 4-LANGKAH Wahyu Eko Saputra; Harmen Burhanuddin; M.Dyan Susila
Jurnal Ilmiah Teknik Mesin Vol 1, No 1 (2013)
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The quality fuel affects combustion because the fuel quality will get better combustion. Therefore, it is necessary to improve the quality of the fuel to produce combustion. Such an increase in the octane rating of the fuel can result in increased good quality of the fuel. One method used is the addition of natural additives in the fuel. Tests were performed using a motorcycle test engine 100 cc 4-stroke is running test (road test and acceleration), and stationary testing. The test road test conducted by a distance of 10 km with an average speed of 50 km / h test aims to get the value of fuel consumption. Furthermore, using the acceleration test speed 0-80 km / h and 40-80 km / h which aims to get the fastest acceleration time. Then the stationary testing done on rotation 1.000 rpm and 3.000 rpm with a 5-minute aims to get the value of fuel consumption at rest. This test uses a natural variation in the dose of the gasoline additive used is 1:4, 1:6, 1:8, and 1:10. On testing fuel consumption with the distance 10 km can be seen that the concentration of 1:6 is the best concentration that can reduce fuel consumption by 23,31% (136 ml), compared with natural gasoline without additives (177,333 ml). Average time acceleration 0-80 km / h resulted in the concentration of the best natural additives 1:4 that is with an average acceleration of 10,847 seconds (20,69%). In testing acceleration 40-80 km / h obtained for the concentration of 1:8 with an average acceleration of 6,993 seconds (21,83%). Tests of stationary fuel consumption at 1,000 rpm for 5 minutes in to the best performance at a concentration of 1:8 that is 33,91% (12,667 ml) whereas at 3.000 rpm stationary best performance is obtained at a concentration of 1:10 30,71% (14,334 ml).Keywords : fuel, natural additives, engine performance.
PERILAKU CREEP PADA KOMPOSIT POLYESTER DENGAN SERAT KULIT BAMBU APUS (GIGANTOCHLOA APUS (J.A & J. H. SCHULTES) KURZ) M.Ikhsan Taufik; . Sugiyanto; . Zulhanif
Jurnal Ilmiah Teknik Mesin Vol 1, No 1 (2013)
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Bamboo is used as raw material wicker and crafts are emerging as a new solution for use as new materials that are more environmentally friendly and have better mechanical strength. Research by utilizing bamboo as reinforcement fibers and polyester resin matrix aims to determine the mechanical strength of the resulting composite merging the two. Bamboo fiber composites made with various volume fractions of 10%, 15% and 20% using polyester resin and catalyst MEKPO ratio 100:1. The composite is prepared by hand lay-up by using a glass as a mold. Bamboo fibers used as reinforcement composites, is expected to increase the tensile strength and creep strength of each variation. In addition to observing the microstructure using SEM (Scanning Electron Microscope) to determine the failure mechanisms that occur on the fracture surface.From this study the authors concluded that bamboo fiber composites have the potential for further development because the tensile test results are directly proportional to the addition of fiber to the highest tensile strength was 86.01 MPa at 20% volume fraction, whereas the average creep testing best time of 529.63 seconds on 10% volume fraction, the failure mechanism of the plates shown in SEM is a form of fiber breaking, pull out and de bonding.Keywords: Bamboo, composite, creep.
STUDI POTENSI PEMBANGKIT LISTRIK TENAGA MIKROHIDRO (PLTMH) DI SUNGAI CIKAWAT DESA TALANG MULIA KECAMATAN PADANG CERMIN KABUPATEN PESAWARAN PROPINSI LAMPUNG . Sulistiyono; Agus Sugiri; A.Yudi Eka Risano
Jurnal Ilmiah Teknik Mesin Vol 1, No 1 (2013)
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Electric was the vital energy and needed by community for all activity as lighting, radio, television (information), industry , etc. Although aspecialy the urban community was needed this energy and a little rural community was needed. There was several isolated villages in Pesawaran sub province , no electricity by PLN. For this villages goverment would supply the elerctric energy and build microhydro electric plant. The purpose of this with title “Feasibility Study Micro Hydroelectric Power Station (PLTMH) at cikawat river in talang mulia village pesawaran sub province” is to contributed in hydro turbine management and to planning a micro hydroelectric power station that can be used and applied for a better life The research was carried out by using a very simple method is to use a floating object method to measure discharge and plastic hose method for measuring head.Based on the field data, (Head efektif = 9. 35m and water debt = 0,1029 m3/s) the crossflow Turbine can produce energy 7.07 kW. Bellow to the data above it is result that the cikawat river can be set a micro hydro electric power.Keywords : micro hydroelectric power station, water dept, crossflow Turbine.
Cover Jurnal FEMA Vo.1 No.1 Januari Tahun 2013 Cover Halaman Sampul
Jurnal Ilmiah Teknik Mesin Vol 1, No 1 (2013)
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Sampul Cover Jurnal FEMA Vol.1 No.1 Januari 2013
PEMBUATAN OTOMASI PENGATURAN KERETA API, PENGEREMAN, DAN PALANG PINTU PADA REL KERETA API MAINAN BERBASIS MIKROKONTROLER Ari Beni Santoso; . Martinus; . Sugiyanto
Jurnal Ilmiah Teknik Mesin Vol 1, No 1 (2013)
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This research is intended to study experimentally the relationship between automation systemsfor the transportation system, while the emphasis is on the point of train control system on the rails.The design of manufacturing automation systems in this research using a microcontroller PUATTiny 2313-20 for setting the working mechanism of the dynamo on a train and ArduinoDuemilanove to open or close the railway doorstop. The data obtained from this research arespeed, braking system that is safe, and the optocoupler output. Safe braking distances used inresearch was 10 cm. Keywords : Automation Systems, Microcontroller, Optocoupler, Braking Systems.
PENGARUH TEMPERATUR DAN WAKTU PEMANASAN ZEOLIT PELET TEKAN PADA AKTIVASI BASA-FISIK NaOH DAN KOH TERHADAP PRESTASI MOTOR DIESEL 4-LANGKAH Novian Korin A; Herry Wardono
Jurnal Ilmiah Teknik Mesin Vol 1, No 1 (2013)
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Natural Zeolite is one of alternative adsorbents. Zeolite should be firstly activated to get zeolite with high adsorption capacity. The ability of chemical-physical activated zeolite in saving fuel consumption of a diesel engine proven by Herry Wardono using NaOH and KOH with normality of 0,75N. The mass of pressed pelletized zeolite used was 100 grams and with thermal activation at 200°C for 2 hour. In this research, zeolites were activated by using thermal activation at 150°C for 1 hour and 2 hours, and 200°C for 1 hour, these pellets were packed in a frame of 50 grams, 100 grams and 150 grams, and put them in the air filter of a diesel engine for each mass, so combustion air was firstly contacted with zeolites before entering to combustion chamber. The experiments were operated at engine speeds of 1500, 2000, 2500, 3000 rpm. The results showed that used of these thermal-Alkali activated zeolites could in increas the diesel engine performance. Use of 150 grams of KOH 0,75N activated zeolite that was thermally treated at 150oC for 2 hours could reduce the highest fuel consumption that was 0,0225 kg/kWh (11,211%), and as big as 0,0218 kg/kWh (10,87%) for use of 150 grams of NaOH 0,75N activated zeolite that was thermally treated at same condition. Meanwhile, the highest increase of brake power occurred for use of 100 grams of NaOH 0.75N activated zeolite that was 0,054 kW (7,667%), and as big as 0,0477 kW (6,849%) for use of 100 grams of KOH 0.75N activated zeolite. The results occurred at the engine speed of 1500 rpm.Keywords: thermal activation of Zeolite, Combustion air Treatment, Diesel Engine Performance
Pengaruh Penambahan Abu Sekam Padi Terhadap Kekuatan Tekan Dan Porositas Genteng Tanah Liat Kabupaten Pringsewu Mei Indra Kusuma; . Tarkono; Moh. Badaruddin
Jurnal Ilmiah Teknik Mesin Vol 1, No 1 (2013)
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Rice’ husk ash’ prosperous in silica (siO2). Silica in construction term, especially concrete technology had already been used as additional ingredient. Husk ash is used as additional ingredient of clay roof tile making process. It is made by compounding of clay, sand, water andhusk ash. Then, they are mashed by extruder machine and forming of kuweh and then, airing for three days before the process of stamping. The roof tile is dried for four days then there is fumigation for twelve days and continued by combustion for also twelve days. The examination which used is press and porosity examination with the aim of knowing whether there is additional impact of rice’ husk ash’ existence or not into clay roof tile in Kabupaten Pringsewu. Theresearch’s results showed that there is conversion of press and porosity power compared with roof tile without rice’s husk ash composition. The optimum value for the press and porosity examination is obtained from the roof tile with 5% rice’s husk ash’ composition with the press power’s average value 11.118 KPa and the porosity average value 20.16%. The minimum value for the press and porosity power is obtained from the roof tile without rice’s husk ash’s composition with the press power’s average value 8.393 KPa and its porosity average value 21.92%.Keywords: clay roof tile, rice husk ash, silica (SiO2), press power, porosity.

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