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ROTOR: JURNAL ILMIAH TEKNIK MESIN
Published by Universitas Jember
ISSN : 1979018x     EISSN : 24600385     DOI : -
Core Subject : Science, Engineering,
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
ROTOR merupakan jurnal yang diterbitkan oleh Jurusan Teknik Mesin Universitas Jember yang memuat artikel ilmiah dalam bidang Konversi Energi, Design/Perancangan, Teknik Produksi, Material serta bidang lain yang terkait dengan Teknik Mesin. Semua naskah yang diterima ROTOR diterbitkan secara global dalam bentuk elektronik. Hasil penelitian yang diterbitkan dalam jurnal ini diharapkan dapat menambah khasanah pengetahuan di bidang Teknik Mesin serta menjadikan sarana bagi para profesional baik dari dunia usaha, pendidikan, ataupun peneliti untuk menyebarluaskan perkembangan ilmu pengetahuan dan teknologi di bidang Teknik Mesin melalui publikasi hasil penelitian.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 19 Documents
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Search results for , issue "2016: ROTOR Special Edition" : 19 Documents clear
PROTOTYPE ANTENA OMNIDIRECTIONAL MIKROSTRIP PATCH ARRAY SEBAGAI PENGUAT TRANSMITTER RADAR PESAWAT TERBANG PADA FREKUENSI 1030MHZ Arif Fahmi; Dodi Setiabudi
ROTOR 2016: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Radar SSR (Secondary Surveillance Radar) is an equipment to detect and determine the position and target data around him actively, where the plane took active if it receives the RF signal emitted secondary radar. In this study aims (1) to design a prototype omnidirectional microstrip patches array for applications Radar SSR (Secondary Surveillance Radar) according to the characteristics of the antenna by using the software High Frequency Structure Simulator version 13 (HFSS v13) that operate at a frequency of 1030-1090 MHz and get characteristics of the antenna such as Voltage Standing Wave Ratio (VSWR), the radiation pattern and gain (2) Implement the design of antenna omnidirectional microstrip patches array into physical form and measure VSWR, gain and radiation pattern characteristics of the prototype has been created and analyzed the characteristics Between desaian antenna with the prototype antenna that has been made. This research method using the rectangular microstrip patches dimensional array to determine the size of the microstrip antenna array patches and simulated using HFSS v13 software. The results of the analysis parameters pacth microstrip antenna array in HFSS v13 Software demonstrate the value of Ref. AMPL his 40.950739 dB, the analysis results pacth microstrip antenna array using the software HFSS v13 obtained gain value by achieving -29dB, and the results of the analysis, the value of the radiation pattern reaches the radiation pattern of 33.28dBm. Keywords: SSR, HFSS v13, VSWR, gain, radiation pattern, antenna, microstrip pacth array.
SIMULASI HORIZONTAL AXIS WATER TURBINE TIPE SAVONIUS PADA ALIRAN AIR DALAM PIPA MENGGUNAKAN APLIKASI SOLID WORK Alpriza Sakti Kusuma Putra; Syamsul Hadi; Dominicus Danardono Dwi Prija Tjahjana
ROTOR 2016: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

The potential energy available in the abundant water in Indonesia can be used as electrical energy resources such as pico hydro. Savonius turbines installed at picohydro power plant contained in the flow of water in the pipe. This study uses a turbine that has angle of attack of 80°, 90°, 100°, 110°, the blade number of 2, 4, 6, 8, and blocking angle system of 20°, 30°, 40° and 50°. SolidWorks software is used to perform modeling and simulation in the Savonius turbine. Computational Fluid Design (CFD) is used to design analysis of the turbine. The obtained results are pressure distribution on the Savonius turbine blade, water flow and torque generated. The aims of this study are to obtain the best performance of the turbine design as pico hydro power plants (PLTPH). The results show that the blade number of 2 with the angle of attack about 80° and deflector angle of 50° have the highest torque about 1,766 Nm. Keywords: Savonius turbine, variation, torque, simulation, SolidWorks fluid flow
PENGARUH PANJANG SERAT TERHADAP SIFAT BENDING PAPAN KOMPOSIT POLIESTER BERPENGUAT SERAT BUAH LONTAR Kristomus Boimau; Theo Da Cunha
ROTOR 2016: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

The need for wood as a building material is increasing, but the existing forest conditions are difficult to meet the demand. Several alternatives have been developed as an effort to overcome the lack of wood, for example by creating wood derivative products such as fiberboard, particle board, and cement board. The raw materials for making fiberboard usually use natural fibers derived from plants containing fibers such as kenaf, banana, hemp, sisal, lontar and flax. The prospect of fiberboard development is very potential, because Indonesia has a suitable climate overgrown by these fibrous plants.The purpose of this study is to determine the effect of fiber length on the bending properties of polyester composite board reinforced by palm fibers. The material used in this research is lontar fibers with fiber length 1 cm, 2 cm and 3 cm and polyester resin. Before the fiber is used as a reinforcing medium, the fibers are first treated with 5% alkali by soaking for 1 hour. After the fibers were removed, then rinsed with clean water to free the fiber from alkali and then dried. The ratio of fiber-matrix composition used in this study was adjusted to the rule of mixture (ROM), wherein the volume fraction of fiber (Vf) used was 30%. The composite board is made by hand-lay-up method and continued with 24 hours by pressing with hydraulic jack. Furthermore, the molded composite is cut into bending test specimen according to ASTM D790 standard. The nature of bending of composite board is known through the process of testing three point bending by using universal testing machine.The result of bending test shows that the test specimen with 3 cm fiber length has a higher bending strength value of 18.42 Mpa, while the composite with 2cm fiber length is 16.35 Mpa and 15,44 Mpa for 1cm fiber length. Keywords: composite, lontar fiber, fiber length, bending
PENGARUH PERLAKUAN PANAS PADA PEMBENTUKAN PELAT BERALUR PANEL KENDARAAN TERHADAP PENINGKATAN FREKUENSI ALAMIAH DIUKUR PADA KONDISI BATAS JEPIT-JEPIT Sukanto Sukanto; Erwanto Erwanto
ROTOR 2016: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Vehicle Comfortability in a minibus is highly influenced by the noise level and the mechanical vibration on the cabin. Sound and vibration can come from the engine excitation, the pressure difference in both inside and outside of the cabin, the road roughness and the primary vehicle’s structure. The ground, wall and floor of the cabin in a vehicle are the most influenced parts in the role of transmitting sounds and vibrations. These can be reduced by means of increasing the cabin’s stiffness. Sheet metal is mainly used as the cabin’s material. Its stiffness can also be increased by means of thickening, grooving and embossing the plate. The aims of this experimental work are to increase both the natural frequency and the stiffness of the plate by means of forming and grooving in the cabin’s plate. The material used in this paper is mild steel plate 0,8 mm from galvanized steel that is generally used in manufacturing of the minibus vehicle (ASTM A 29 coated with zinc and aluminum). The research method is derived as follows: determining the panel dimension, calculating the number of the groove, designing both the heating temperature and the cooling media, grooving process, measuring and analyzing the natural frequency and the stiffness. The length and the width of the panel dimension are determined by 550 mm and 550 mm, respectively. Trapezium cross-section is used as groove’s design. The results show that the natural frequency and the stiffness are linearly influenced by residual stress. The highest frequency, reached at 258,06 Hz, is to be found at 10 groove with temperature of 700 °C and followed by water cooling. In addition, this frequency is increased nine times compared with plain panel without groove in which it has 27,55 Hz. Keywords: natural frequency, vehicle panel, heat treatment, fixed-end, stiffness
KAJIAN EKSPERIMENTAL ALATMULTI FUNGSI BERCATU DAYA TERMOELEKTRIKUNTUK PENDINGINAN DAN PEMANASAN Dian Wahyu; Andriyanto Andriyanto; Hanif Hanif; Rino Sukma; Yazmendra Rosa
ROTOR 2016: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

The versatile tool from thermoelectric power supply has been made and has satisfied performance. The selection of material and tool is chosen based on the product availability in the market and the cooling device is selected based on the number of cooling load. Thermoelectric cooler is one of the electrical components that transfer a heat to another side by electric discharge. Cold temperature generated in the cold side is used to cooling the working fluid and the heat temperature is used to heating the water. The water is used as cooling fluid and used as much as 3L to cooling the room temperature where it is integrated by fan to either accelerate the heat absorption process or dispose the heat. Small heat exchanger is used to expand the heat absorption area in a cooling room. The results show that cooling element is capable to work constantly on the cooling power for one element by 37 W. Meanwhile in the tool characteristics, it is capable to produce low temperature of 13°C that begins in 40th minute. In addition, warm water temperature with volume of 30L is capable to produce 45°C. The maximum efficiency from cooling device is occurred when the different temperature in both side is nearly minimum. Coefficient of performance (COP) of cooling system is obtained at 0,58. Keywords: thermoelectric, cooling room system, COP (coefficient of performance)
RANCANG BANGUN ANTENA MIKROSTRIP SIERPINSKI GASKETARRAY PENGUAT MODEM GSM PADA KENDARAAN MOBIL PRIBADI M. Yasin Anwar; Dodi Setiabudi; Widya Cahyadi
ROTOR 2016: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

The modem is a device used to connect users to the Internet, GSM modem frequency allocation in Indonesia, 900-1800 Mhz. Disadvantages of GSM modem that is, less than the maximum speed internet access. To support the GSM modem performance authors will design and make microstrip antenna Sierpinski Gasket type who works at a frequency of 1.3 GHz. In the test antenna simulation results obtained return loss is 23.3823 dB, VSWR 1.1787 dB, gain 1.852 dBm. Tests using a VNA, get a return loss when the frequency of 1.093 GHz, return loss -10.68 dB, SWR 1.80 dB, and when the frequency of 1.543 GHz, return loss -15.38 dB, SWR 1.53 dB. At the time of the test in motion by using an antenna default GSM modem at a speed of 10 km/H uplink 32.66 Kbps and downlink 913.66 Kbps, at a speed of 20 Km/H uplink 56.76 Kbps and downlink 1.52 Mbps, a speed of 30 Km/H uplink 59.15 Kbps and downlink 1.69 Mbps. When using an antenna array is connected to a GSM modem, at a speed of 10 Km/H uplink 139.91 Kbps and downlink 4.36 Mbps, at a speed of 20 Km/H uplink 210.22 Kbps and downlink 7.26 Mbps, at a speed of 30 Km/H uplink 154.04 Kbps and downlink 5.11 Mbps. Keywords: Mikrostip Antenna Sierpinski Gasket, GSM Modem
Front Section Fahrur Rozy
ROTOR 2016: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

STUDI EKSPERIMEN BENTUK KACA PENUTUP UNTUK MENINGKATKAN PRODUKTIFITAS DAN EFISIENSI SOLAR STILL Nova Risdiyanto Ismail; Andi Hardianto
ROTOR 2016: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Based on the previous research, it’s needed a research on the development of solar distillation model. The development of a concrete absorbed plate with fin has been conducted and resulted on improving productivity and efficiency of solar still. The development is continued by making a model using the glass covered model with roof shape and V. Experimental method is used in this work. Absorbent plate from concrete with fins models and some gravel are used in this solar still research. The concrete composition is determined by two parts of iron sand and one part of PCC cement. The cover glass design is determined by roof model, V model and conventional model (flat model). Water volume is designed as varied variables. The results show that V model can increase the productivity of freshwater and efficiency of the solar still compared with roof model and conventional model under different water volume. The absorber plate temperature, water temperature and cover glass temperature satisfy the solar radiation pattern. Keywords: solar distillation, cover glass shape, water volume
METODE STEREO VISION DENGAN KAMERA CMOSUNTUK PENGUKURAN JARAK Asmar Finali
ROTOR 2016: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Excess image sensor digital camera is not just a picture taker or produce video, can be also as a measurement tool. Through the method of image processing, can be processed input image or an object taken from the camera. Image processing can be thresholding, edge detection and template matching. Required sensing with two images obtained from the stereo camera simultaneously or stereo vision. The camera used has properties or specifications are identical. OpenCV was contribute to image processing, object interpretation and also the calibration process. Calibration function to search for intrinsic and extrinsic parameters of the camera. Research uses a solid object in the form of balls of various sizes and colors. Epipolar and stereoscopic as the method to be used, because in previous studies, it is very suitable for processing images with color segmentation. As for digital image processing using the method thresholding. Research results obtained, that the object of pingpong ball motionless when lighting using sunlight has RMSE (root mean square error) of 2.64% while the value of a tennis ball RMSE is 2.53%. Research by lighting using indoor lighting, RMSE was 1.03% pingpong ball, tennis ball RMSE of 2.25%. While on the moving object, either RMSE pingpong ball or a tennis ball, its value is greater than when the motionless object. Measuring tool using a stereo camera capable of detecting targets up to a distance of 300 cm, but at a distance of 200 cm level of confidence does not the 95%. Lighting greatly affect the measurement results CMOS camera, because scalar target color easily changed. Keyword: image processing, thresholding, OpenCV, epipolar, stereo cameras, stereoscopic

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