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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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PEMANFAATAN TEKNOLOGI TEPAT GUNA MESIN PENGIRIS TEMPE UNTUK MENINGKATKAN PRODUKTIFITAS UMKM KERIPIK TEMPE DI DESA SILIRAGUNG KECAMATAN SILIRAGUNG Trianasari Ely; Pamuji Ridlo Dian; Prayogo Sandy Galang; Rahayu Sri Ninik
ROTOR Vol 10 No 2 (2017)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (118.871 KB) | DOI: 10.19184/rotor.v10i2.6420

Abstract

Tempe is a favorite food of Indonesian society either from the bottom to the upper class of society. In addition to the cheap price, protein and other nutrients in tempe can meet some of the daily nutritional needs of Indonesian society. As soybean, tempe can also be processed into several foods that are tasty, nutritious and have high economic value. One of processed products using tempe as raw material is tempe chips. Given the increasing prices of basic needs that exist today, many people do small and medium enterprises to meet the basic needs. One of them is by doing tempe chips business. Nowadays, a lot of small business community found selling tempe chips, one of which is in the Siliragung, Banyuwangi. Because the taste is tasty and crunchy, tempe chips are much preferred. In designing the machine, partners and students of Mechanical Engineering Program are involved. The initial phase of this devotional activity is to conduct a survey in order to identify problems faced by partners and conduct a literature study to find solutions to partner problems. After the solution of partner problems obtained, the next step is to design the required machine that is tempe slicing machine. The machine to be made is expected to help the community in increasing the productivity / production capacity of tempe chips compared with manual or traditional process so that the production time can be shortened and the income of the society increases. Keywords: tempe slicing machine, tempe, productivity.
PEMANFAAT FREKUENSI BUNYI MATERIAL SEBAGAI DASAR PENGUJIAN MODULUS ELASTISITAS PADA PENGUJIAN TANPA MERUSAK (NON DESTRUCTIVE TEST) M. Fahrur Rozy Hentihu; Abdul Hadi Djaelani; Moch. Agus Choiron
ROTOR Vol 6 No 1 (2013)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (255.777 KB)

Abstract

Elastic modulus of material are usually obtained from tensile test. Tensile test categorized as destructive test. One of destructive test weakness is the testing specimen can not be reused. So we need alternative on elastic modulus test without damaging the specimen (non destructive test). This research aims to determine whether the sound frequency of material can be used as a basic for elastic modulus test as a non destructive test. On this research, two different test performed on the same specimen. First test is testing elastic modulus using sound frequency test (non destructive test) and second test is testing elastic modulus using tensile test (destructive test). Percentage error obtained from comparing percent error between those two tests. The results showed, in testing the elastic modulus of brass specimen has an error percentage of 10.33%, in testing the elastic modulus of aluminium specimen has an error percentage of 4.39%, and in testing the elastic modulus of steel specimen has an error percentage of 1.89%. Keywords: Elastic modulus, Non destructive test, Sound frequency
Rancang Bangun Poltekom Electric Car Sebagai Modul Pembelajaran Teknik Mekatronika Redi Bintarto; Imam Kusyairi
ROTOR Vol 6 No 2 (2013)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (338.542 KB)

Abstract

POLTEKOM Electric Car  is one of POLTEKOM effort to help the government programs in the development of electric cars . Many problems of electric cars for example in high cost and difficulties to finding spare parts into several constraints of the college to make an electric car . For this study researcher tried to designed and built an cheap electric cars which is capable of being used for transportation vehicle, both for moving people and goods with a certain capacity . To prove the target of this research purpose, we perform the strength of the chassis test , acceleration test , braking test and climbs test . By the testing, it is known that POLTEKOM Electric Car  Able to move the maximum load of 200kg . Capable of driving a maximum of 35km/jam on flat road . Being able to climb the terrain with a slope of 15 degrees and is able to ride off after braking at a distance of 1 meter . By the datas that we collect during the test, it was analised and concluded that POLTEKOM Electric Car  has been able to be used as human and material handling which can then be used as a learning module in mechatronic engineering . Keywords: electric car, material and human handling
KOMPARASI EFISIENSI MATERIAL BAJA KARBON St 37, BAJA KARBON St 41 DAN BAJA KARBON St 60 TERHADAP LAJU KOROSI DI MEDIA AIR MUARA SUNGAI (PAYAU) DENGAN METODE ELEKTROKIMIA Yusuf Nur Afandi; Sumarji Sumarji
ROTOR Vol 6 No 2 (2013)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2060.308 KB)

Abstract

Mouth of the river is the meeting place of river water and sea water . water estuaries (brackish water) has asodium chloride content of between 1% -2.5 whether it's from natural sources around the surrounding river water or a mixture of sea water . many construction or structure that is attached to the mouth of the river environment made of metal materials, especially carbon  steel.  the use of  steel  in building  structures  in estuaries  susceptible  to  corrosion  due  to  environmental  water  containing  chemical  elements  that  are corrosive. Factors  affecting  corrosion  such  as  temperature,  acidity  (pH),  salinity  (NaCl),  the  levels  of chloride  (Cl),  the  levels of  sulfate  (SO) as well as dissolved oxygen, causing easily corroded carbon  steel. This study aims to determine the Comparative Efficiency of Steel St 37, St 41 Steel and Steel st 60 on the rate of corrosion  in aqueous media estuaries with  tool Potensiostat methods. This research  is an experimental laboratory to design the post-test group design. From the results obtained data show the results of corrosion rate measurements made  in  this study  that  the greatest rate of corrosion occurring on  the steel material St 37 is 29.527 mpy, St 41  steel was 27.548 mpy, and  steel St 60  is 24,493 mpy. The  results  showed  that  the corrosion rate of steel st 37 has a very large corrosion rate in comparison steel and carbon steel st 41 high st 60. From the observation  in micro on  the  trid specimen  three  is corrosion  that resembles a uniform or evenly corrosion. A  form of  corrosion  that  results  in a uniform attack on  the  entire  surface of  the metal. Keywords: Estuaries, The Rate of Corrosion
EFEKTIVITAS VARIASI CAMPURAN RADIATOR COOLANT DENGAN AIR TERHADAP LAJU PEMBUANGAN PANAS Badrul Hadi; Aris Zainul Muttaqin
ROTOR Vol 7 No 1 (2014)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (163.485 KB)

Abstract

Radiator adalah alat yang berfungsi sebagai alat untuk mendinginkan air yang telah menyerap panas dari mesin dengan cara membuang panas air tesebut melalui sirip-sirip pendinginnya. Penelitian bertujuan untukmengetahui laju pembuangan panas dan efektifitas pada radiator dengan beberapa komposisi campuran air dengan radiator coolant.Dalam penelitian ini, dilakukan pengujian perbandingan laju pembuangan panas antara komposisi campuran 90% air dengan 10% radiator coolant, 70% air dengan 30% radiator coolant, 60% air dengan 40% radiator coolant, dan 50% air dengan 50% radiator coolant. Pengambilan data dilakukan dengan mengambil data setiap 5 menit selama 30 menit. Dari penelitian tersebut diambil data antara lain temperatur masuk dan keluar radiator dan volume aliran fluida (Q) yang kemudian dilakukan pengolahan data untuk menentukan laju aliran massa (), panas spesifik fluida (Cp), laju pembuangan radiator (q), dan pengolahan data secara grafik. Hasil penelitian dari beberapa komposisi campuran air dengan radiator coolant menunjukkan bahwa variasi dengan = 1,02 yaitu pada komposisi campuan 70% air dengan 30% radiator coolant yang memiliki nilai laju pembuangan panas yang paling tinggi, hal ini disebabkan nilai Cp pada komposisi ini lebih besar dibandingkan dengan yang lain. sedangkan untuk nilai efektifitas paling tinggi untuk variasi komposisi campuran dimiliki 50% air dengan 50% radiator coolant, hal ini disebabkan (beda suhu rata-rata) berbeda jauh dibandingkan variasi komposisi campuran yang lain.   Kata kunci: Radiator, air, radiator coolant, heat exchanger
ANALISA PENGENDALIAN PROSES PRODUKSI SNACK MENGGUNAKAN METODE STATISTICAL PROCESS CONTROL (SPC) Robertus Sidartawan
ROTOR Vol 7 No 2 (2014)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (335.348 KB)

Abstract

Today the growth of home industries increase rapidly indeed it is very competitive. One of the strategies to gain competitive advantage is to continuously improve the quality of its products. This conditions have to be supported by the implementation of a quality control on the process in order to later be able to produce a product that has high competitiveness. The purpose of this study is to analyze the production process of snacks at home industry whether they are already under statistical control or not and analyze whether the production process meets the specified design or not. The data are used in this study are both secondary and primary data. Primary data was obtained through direct observation and interviews, while the secondary data obtained from the internet, literature, and journals. Here, we use Statistical Process Control as the analytical tool by making X and R control charts and process capability analysis. The results showed that the control of the production process snacks still not reliable production process. This is an indication that the process is in out of control or it is still experiencing irregularities. Process capability ratio, indicating that the process is said to be worth (not capable) and it must be improved. Process capability index, indicating that the accuracy of the process is less, which means that the process can still be improved. Keywords: Statistical Process Control, Control Chart, Process Capability   
Perhitungan Energi Kinetik Pada Sistem Pengereman Regenerative Mobil Listrik Triwahju Hardianto; Hari Sutjahjono; M. Edoward Ramadhan
ROTOR Vol 8 No 1 (2015)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (216.967 KB)

Abstract

This research is early step of the research developing on regenerative breaking system of Jember University electric car. This research focuses on the energy recovery system application using kinetic energy on electrical while do breaking. Application of KERS (Kinetic Energy Recovery System) is expected to improve the performance of electrical energy storage systems and increase the mileage of electric cars with regenerative system on the battery charging system.The regenerative braking system in this research is to create a prototype system that consists of three main components namely CVT (continuously variable transmission), flywheel and clutch. Data obtained on the experimental results showed that the relationship parameters i.e. car wheel speed, the flywheel speed and duration of the flywheel during braking. At one of the results of data is obtained wheel speed data of 680 rpm, speed flywheel of 128 rpm with duration of flywheel rotation after braking of 21.42 seconds.
PENGEMBANGAN DAN ANALISIS ERGONOMI KURSI OPERATOR MESIN VULKANISIR BAN DENGAN METODE REVERSE ENGINEERING Yuni Hermawan
ROTOR Vol 4 No 1 (2011)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (316.434 KB)

Abstract

The likelihood of complaints occurring in the tire retreading machine operator is very possible especially if the seats are not as ergonomic. This situation occurs and will be redesign chair  process machine operators with a method of tire retreading Reverse Engineering (RE) with respect to ergonomic aspects. By analysis using finite element software simulations, we can determine the voltage that occurs in part the concept of tire retreading machine operator seat. So it can be seen clearly the force distribution that occurs in material unit concept tire retreading machine operator seat. To calculate the material strength analysis by finite element software can use the help of CATIA V5R14 software. This is intended to get maximum results and an accurate analysis. After the experiment, the voltage that occurs on a cushion of 1.81x106 N/m2 located on the bottom face of the middle cushion while the minimum working voltage is 1.81x105 N/m2 located on the bottom front cushion edges. The voltage that occurs on a cushion of 1.27x108 N/m2 located at the base of the curved pipe connections while the minimum working voltage is 1.27x107 N/m2 located at the base of a straight pipe connection. Ergonomics analysis obtained by using the method Rula when operators run the machine has the injury risk rate value is 2, which shows the attitude of the body is acceptabel and do not need to be changed for the long term. Keywords: ergonomic, chair operator and reverse engineering
PERANCANGAN DAN PENGEMBANGAN PRODUK RAGUM DENGAN METODE QUALITY FUNCTION DEPLOYMENT (QFD) Robertus Sidhartawan
ROTOR Vol 5 No 2 (2012)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (319.122 KB)

Abstract

Vise used in the work bench or work processes functioning manual for gripping the workpiece and can also be used in the machining process. Most of the manufacturing industry in Indonesia, still not able to design their own products. In the process of making problems often arise include the design can not be realized, the high cost of manufacture or product functionality that is not being met, so it can be said that not enough manufacturing industries are well qualified to produce quality products that can compete. Quality Function Deployment (QFD) is a method used to anticipate and prioritize the needs and desires of consumers, as well as incorporating the needs and desires of the consumer goods and services produced by the company. The purpose of this research is to design and develop products vise using the Quality Function Deployment. The data required in this study consisted of primary data and secondary data. Primary data were obtained from the distribution of questionnaires to the respondents. Secondary data was collected through library research. From the research, it can develop new products with specifications vise: (1) vise must be equipped with a third axis of rotation (14.14%), (2) vise with solid physical form (10.71%), (3) Price selling cheap (10.20%), (4) is equipped with a vise grip (9.05%), (5) vise is equipped with a practical guide (9.04%), (6) vise should be light (9, 03%), (7) pencekam jaw vise flexible, flat (8.27%), (8) vise easy to diasembling (8.27%), (9) Material of vise HR 1040 (7.6%), (10) Age used (7.36%), (11) The components easily obtainable (6.36%). Key word : Vise, Quality Function Deployment, House of Quality
EVALUASI KOROSI BAJA KARBON RENDAH ASTM A36 PADA LINGKUNGAN ATMOSFERIK DI KABUPATEN JEMBER Sumarji Sumarji
ROTOR Vol 5 No 1 (2012)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (338.638 KB)

Abstract

Atmospheric corrosion is corrosion or degradation of materials in the atmosphere that occurs naturally. The corrosion rate varies for different materials and is influenced by several environmental factors, such as: humidity, temperature, and pollutant (NOx, SOx, Cl-, CO2). This research studies the corrosion rate of low carbon steel ASTM A36 in kabupaten Jember environment with different area. The location of research was done in the side of beach (Watu Ulo), the centre of city (Gajah Mada street) and the mountain range (Rembangan). The dimension of test racks and specimens for atmospheric exposure were prepared in accordance with the ASTM G 50 – 76. The cleaning of all corrosion products were done in accordance with the ASTM G 1- 90. The result shows that the highest corrosion rate is in the Watu Ulo as big as 2,82 mpy, than Gajah Mada street as big as 0,919 mpy. The lowest corrosion rate is in Rembangan as big as 0,844 mpy. From the micro photographs, it is found that low carbon steel ASTM A36 corrode by uniform and pitting formation. Keywords: atmospheric corrosion, uniform, pitting

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