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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 333 Documents
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PENGARUH VARIASI WAKTU DAN SUHU TERHADAP KEKUATAN TARIK BELT CONVEYOR (2-PLY 1-STEP) PADA PENYAMBUNGAN SISTEM PANAS Ahmad Amril Nurman; Ahmad Syuhri
ROTOR Vol 8 No 1 (2015)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Industry of manufacture continued to increase in line with developments in science and technology. Using belt conveyor to transport materials can’t be separated in the industrial world. One of the problems that often occur in conveyor belt is a belt tear or break in the connection. This study aims to determine the best tensile strength in the process of joining belt with hot splicing method, by varying the times (20, 30, 40 minutes) and heating temperature (100, 150, 170 oC) in the process of these connections. The results showed that the best tensile strength is obtained at a temperature of 130 oC and a time of 40 minutes, that is equal to 0.638 MPa.
ANALISA PENGARUH KARAKTERISTIK KEKUATAN PERSAINGAN PORTER TERHADAP KINERJA SEKOLAH DENGAN PENDEKATAN BALANCED SCORECARD Robertus Sidhartawan
ROTOR Vol 4 No 1 (2011)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

The Schools have to anticipate the influence of external environments. The external environment analysis consist of the macro and micro analysis. The micro analysis used Porter`s five force model of competitiveness consist of threat of new entrans, the bargaining power of supplier, the bargaining power of customer, threat of substitutes schools  and rivalry among existing schools. The purpose of this study was to examine the Porter`s five force model of competitiveness on organizational performance of  school in balanced scorecard approach. Data for this study were collected from middle schools using a self-administered survey questionnaire. Hypothesis test showed that threat of new entrans, the bargaining power of supplier, the bargaining power of customer, threat of substitutes schools  and rivalry among existing schools examined had a significant impact on school performance in balanced scorecard approach.  but partially only threat of new entrans, the bargaining power of supplier, and rivalry among existing schools are significantly influence on schools performance in balanced scorecard approach. but for  the bargaining power of customers, and the threat of substitutes schools aren’t significantly influence on schools performance in balanced scorecard approach. Keywords: external environment,  micro environment analysis, Porter`s five force model of competitiveness, performance, balanced scorecard
ANALISA TEGANGAN VON MISES PADA ALAT BANTU JALAN (WALKER) Sadeli Jokowiyono; Santoso Mulyadi
ROTOR Vol 5 No 2 (2012)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Movement for a walk is a function that needs to be helped, especially for the elderly because they experienced degradation of function or sick, one of them is degradation of the body's energy balance. Not uncommon among those who have trouble for walking, that is because the degradation on muscle strength in the limbs, for example, arm muscles, hand muscles, limb muscles, and leg muscles. Moreover, if the condition is accompanied by degenerative diseases such as osteoporosis, Parkinson's, stroke, knee pain, and fractures. A walker, making the right solution. One of the tools is Walker. Walker is an assistant to a very lightweight, portable, high waist, is made of metal pipe, and this tool comes with two handles that serves as a place that used to hold users and is equipped with four sturdy legs as the pedestal. While the power of the framework are analyzed with the help of CATIA V5R14 software is to determine the stress that occurs in order to operate as a walker. It appears that the greatest stress occurs is still under tension permission of the material itself. Stress equivalent (Von-Mises stress) that occurs should not exceed 1.583333e+007 N/m2 while the voltage that occurs on the order of 1.77e +005 N/m2 walker located at the foot of the minimum voltage while working on the framework of the 6.98e-009 N/m2 located on the frame. Key words: walker, von mises stress and framework.
ANALISIS PENENTUAN PRIORITAS VARIABEL KLASTER INDUSTRI GENTENG UNTUK PENYUSUNAN STRATEGI PENGEMBANGAN KLASTER DENGAN MENGGUNAKAN ANALISA FAKTOR (STUDI KASUS INDUSTRI GENTENG DI KAB. JEMBER) Dwi Djumhariyanto
ROTOR Vol 4 No 1 (2011)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

The presence of roof tile companies in Tamansari - Wuluhan - Jember has not shown the existence of synergies between companies and with other elements in order to improve innovation and business efficiency. This was reflected in most of the production process to the marketing of roof tile products that are still performed as an individual company. In other words, the concentration of roof tile companies in Tamansari stopped only to the extent of an industrial roof tile. Whereas, by making a group of roof tile companies in a certain area allows for collaboration between companies as well as with other elements in these area to improve business efficiency as well as the creation of a new innovation related to the roof tile industry. This researh aimed at identifying cluster variables of roof tile industry that will provide competitive advantage for the roof tile industry, and determine the cluster variables priorities that can be used as a reference to arrange a cluster development strategy in the future. Determination of the cluster variables based on the concept of Porter's Diamond Model. Roof tile industry cluster variables identified are: The Quality of Labor, Capital Access, Transportation Facilities, Telecommunication Facilities, Excellent Quality of Roof Tile, Suppliers Companies, Industrial Equipment Provider Companies, Roof Tile Buyer Companies, Financial Institutions, Transportation Companies, Distributors of Roof Tile Companies, Roof Tile Business Associations, Companies Strategy, Organizational Structure, Similar Companies, Job Training Centers, Universities, Corporate Tax, Legal and Quality Standards. Determination of the cluster variable priority to cluster development strategy using factor analysis, with the following results: Related and Supporting Industries Factor with variables as follow: Suppliers Companies, Industrial Equipm[1]ent Provider Companies, Roof Tile Consumer Companies, Financial Institutions, Transportation Companies, Roof Tile Distribution Companies, Roof Tile Business Associations; Factor Condition Factor with variables as follow: The Quality of Labor, Capital Access, Transportation Facilities, Telecommunication Facilities; The Role of Government Factor with variables: Employment Training Centers, Universities, Corporate Tax, Legal and Quality Standards; and Firm Strategy, Structure and Rivalry Factor which the variables: Companies Strategy, Organizational Structure, Similar Companies. Keywords: competitiveness, diamond model, industrial cluster,  small and medium enterpris 1 Staf Pengajar Jurusan Teknik Mesin Fakultas Teknik Universitas Jember  
Karakteristik Termal Briket Kayu Sengon Dengan Variasi Suhu Tekan Nasrul Ilminnafik; M. Agung Fauzi
ROTOR Vol 8 No 2 (2015)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Briquette is a solid fuel that made from organic waste and mixed with other materials by pressure. In this research, the raw material used is waste of sengon sawdust and used  tapioca flour as binder. This study focused on the effect of temperature pressure variations on ignition time, burning time and the rate of combustions of briquette charcoal sengon. Pyrolisis temperature 400 ºC and variation of temperature pressure were 150ºC, 175ºC, and 200ºC. The results of research onsuppression temperature of 200 ºC, the ignition time is getting longer, because the more water out of charcoal and tapioca, it makes active adhesive particles to bind the charcoal leading to higher density briquettes. On suppression temperature of 200 ºC, the burning time is getting longer, because more and more moisture out of charcoal and tapioca, so that more particles tapioca that binds the active charcoal. On pressure of 200 ºC, the slower the rate of combustion because the evaporation of the water content of charcoal and tapioca so that the higher the water content out of the adhesive will more actively bind charcoal and increase density of briquettes. Keywords: briquettes sengon, thermal characteristics, ignition time, burning time, rate of combustion.
PENINGKATAN PERFORMA TURBIN ANGIN SUMBU HORISONTAL BERSUDU AIR FOIL MELALUI PENAMBAHAN NOSEL DAN DIFUSER Jhon A. Wabang; Agustinus Betan; Edwin Hattu; Ambros Tuati; Thomas Fongo; Piter Tukah
ROTOR Vol 9 No 2 (2016)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Horizontal axis wind turbine air foil blade is one of several types of wind turbines to convert the kinetic energy in wind into mechanical energy of the wind turbine. Mechanical energy wind turbine is then converted into electrical energy through a generator and also for irrigation and other functions. The mechanism of utilization of wind energy to generate electricity or irrigation function is a positive step because the kinetic energy of wind is the energy that is environmentally friendly, does not cause air pollution, on the other hand, wind energy freely available in nature. In this research, the process of converting the kinetic energy of wind into mechanical energy through a horizontal axis wind turbine air foil blade is still done on a laboratory scale. The purpose of this study was to determine the torque and power of horizontal axis wind turbines air foil blade. The method of implementation of this research is a horizontal axis wind turbine air foil blade in the test using a fan with three speeds varying found on the fan. The wind turbine is also tested using additional devices such as utilization of nozzle and diffuser to determine the performance of the turbine. The addition nozzle and diffuser is a method of increasing the efficiency of wind turbines because look at the function of the nozzle and diffuser itself. Dimensions of wind turbines in the study had a sweep of the area of 50 cm2 and the number of blades used 3 pieces or blades. The mechanism of this device test carried out in three stages, namely testing without using nozzle and diffuser, using a nozzle testing and testing using a diffuser. From the experimental results, it can be concluded that the first speed, the greatest torque and power the of the wind turbine without nozzle and diffuser is 0.1017 Nm and 4,126 W; at a speed of 2, the greatest power and torque occurs in the turbine using a diffuser that is 0.1195 Nm and 6.88 W; at 3 speed, torque and power are greatest in the turbine using a diffuser that is 0.1166 Nm and 7,935 W. Keywords: Wind turbine, Airfoil, Nozzle, Diffuser.
APLIKASI TEKNOLOGI CATALYTIC CONVERTER SISTEM SERABUT BAJA KARBON RENDAH PADA KENDARAAN BERMOTOR SEBAGAI PEREDUKSI POLUSI UDARA Andi Sanata
ROTOR Vol 9 No 2 (2016)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Technology of motor vehicles that are environmental friendly and fuel-efficient has been a demands in this era of energy crisis and global warming. The growth in number of motor vehicles which are very rapidly has raised the issue of air pollution that should be immediately resolved. Material utilization of iron (Fe) containing low carbon steel is often called low carbon as material for reducing pollution in this study applies principles of catalysation in motor vehicle exhaust gas pollutants with the material. The purpose of this research is generating a product of an architecture modification exhaust pollutants reducing motor vehicle by applying the technology of catalytic converter to reduce pollutant gases like CO and HC that are contained in the exhaust gas, as well as improving performance of the machine. The methods used to achieve these goals is the experimental method, which starts with design and creating of modification reducing exhaust gas as well as testing the effectiveness for emissions level and testing the poduct against the performance of the machine. The results of this research is the use of modification exhaust with application of catalytic converter technology with low carbon steel filler metals as catalysts in motor gasoline four steps can lower the levels of concentration of exhaust pollutants carbon monoxide (CO) and hydrocarbons (HC), increase torque, power, and lower fuel consumption than a standard exhaust conditions. Testing with a percentage of 75% volume of fibres low carbon steel has the best average results in the reduction of carbonmonoxide (CO) gases of 0.41% (lowered levels of CO 71.79% from the standard exhaust conditions) and hydrocarbons (HC) by 77.89 ppm (lowered levels of HC 61,25%), also can generate an increase in the average torque of 15.46% (with an average value of 4.23 Kg. m), an increase of the average effective power of 19.14% (with an average value of 11.76 HP), and decreasing in fuel consumption of 18.51% (with an average value of 1.48 Kg/hour) of the standard exhaust treatment conditions. Keywords: Catalytic Converter, Low Carbon Steel, Hydrocarbon, Carbonmonoxide
STUDI PENGARUH JUMLAH SUDU TERHADAP UNJUK KERJA SAVONIUS WATER TURBINE PADA ALIRAN AIR DALAM PIPA Imron Hamzah; Syamsul Hadib; D. Danardono Dwi Prija Tjahjanac
ROTOR 2016: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Rainwater, flowed through a pipe, has potential energy that can be used to drive a turbine coupled with generator. Savonius water turbine with horizontal axis is used here as the turbine. The research compares the Savonius water turbine with different blade number of 2, 4, 6, 8, 10 and 12 using Computational Fluid Design (CFD) of SolidWork 2013. The turbine specifications have the angle of curvature about 70°, the aspect ratio of 1, the end plate ratio of 1,1 and deflector angle of 45°. The data obtained in this paper are the pressure contour of Savonius turbine blade, the velocity of fluid flow and the torque generated. The aims of the research are to obtain the influence of the blade number in the Savonius turbine to the turbine performances and to obtain the best of blade number. The results show that two blades has the best performances compared with the others. It has the highest torque about 5,75 Nm for the same conditions as well. Keywords: power, Savonius turbine, torque, blade, flow
ANTHROPOMETRI PEKERJA INDUSTRI DAN PERTANIAN DI BEBERAPA NEGARA TERTENTU: SEBUAH STUDI LITERATUR Robertoes Koekoeh Koentjoro Wibowo
ROTOR 2016: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Research on anthropometry has been widely carried out using different objects and methods. The researchers conducted a study with measurements of anthropometric dimensions to body dimensions in particular where the number of body dimensions which measures are different among studies. Thus the result of measurements of body dimensions of each study is not the same. However there are having similar method of research on the measurement of the same body dimensions. Body dimensions data that obtained from measurements can be used as designers reference in the design of ergonomic tools or machinery. From the anthropometric data in the same industry and agriculture workers can be done several comparative dimensions of the body of workers and farmers. This study is comparing anthropometric of worker among in industrial population and among agricultural workers/ farmer. Base on review of data, the study has resulted that each people in different country has its own characteristic form of body dimensions which differ from another. The comparison of body dimensions among workers who work in industrial show that they have variation Mean (M) value of body dimension. Characteristic body dimension of Algerian agriculture workers, except foot breadth, have highest Mean (M) value compare with others countries. Thai female agriculture workers have lower Mean (M) value of body dimension in almost all parts compare with others countries. Keywords: anthropomety, industrial, agriculture
PENGARUH BASIC SEDIMENT AND WATER TERHADAP LAJU KOROSI PIPA X52 DAN A53 PADA MEDIA OIL SLUDGE. Naufan Arviansyah; Sumarji Sumarji; Digdo Listyadi Setyawan
ROTOR Vol 10 No 1 (2017)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (142.727 KB) | DOI: 10.19184/rotor.v10i1.5141

Abstract

This research have a purpuse to know corrosion rate in pipe X52 and A53 at oil sludge media caused BS and W. Corrosion is a damage of metal that occurs because reaction between metal with environtment and produce unwanted of corrosion product. Pipe X52 and A53 is a type of low carbon steel that use for fluid transportation system in industry. Oil sludge is a sediment of crude oil from main gathering storage and containing variouses elements. Oil sludge have a one of element is Basic Sediment and Water that is can make corrosion happen to distribution pipes. Measuring Method used in this research is weight loss method. The result of corrosion rate in Oil Sludge media containing 30,17% BS and W for pipe A53 is 1,64 x 10-2 mmpy and the result for pipa X52 is 2,47 x 10-2 mmpy. The result of corrosion rate in Oil Sludge media containing 60,67% BS and W for pipe A53 is 2,12 x 10-2 mmpy and for pipe X52 the result is 3,13 x 10-2 mmpy. The result of this research showed pipe A53 have more resistance than pipe X52. The corrosion is classified as uniform corrosion. Keywords : A53, Weight Loss, Oil Sludge, X52.

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