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All Journal Jurnal Energi Dan Manufaktur Jurnal Simetris Jurnal Teknosains Rekayasa Mesin ROTOR: JURNAL ILMIAH TEKNIK MESIN Jurnal Rekayasa Mesin Journal of Mechanical Engineering Science and Technology Turbo : Jurnal Program Studi Teknik Mesin Journal of Energy, Mechanical, Material and Manufacturing Engineering STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin Jurnal Elemen Agroteknika J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII
Santoso Mulyadi
Teknik Mesin Fakultas Teknik Universitas Jember
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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PENGARUH VARIASI WARNA PLAT KOLEKTOR SURYA TERHADAP KINERJA PEMANAS AIR TENAGA SURYA SE, Harizalni; Muttaqin, Aris Zainul; Mulyadi, Santoso
ROTOR Vol 7, No 1 (2014)
Publisher : ROTOR

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Abstract

Solar water heater  is a device  that heats water using  solar collectors as a heat absorber of  solar  radiation  that is  transmitted  to  the pipe containing water  . In  this research, comparative performance  testing of solar water heating to solar collector plate color variations . Variations of color used is black ( black ) no. ( 39 ) with the brand of quick drying formula zuper spray acrylic spray paint , red ( red signal ) no. ( 23 ) with rj LONDON acrylic paint brand epoxy spray paint  , and blue  ( blue  fluorescent  ) no.  ( 1004) with rj LONDON acrylic paint brand spray paint epoxy Data collection was performed by  taking data every 30 minutes  for 3 hours are 9:00 to 12:00 pm at the clock and the test performed 3 times on different days . Data taken from the study include inlet and outlet water temperature collectors , and the temperature of the water in the tank , which is then carried out data processing  to determine  the  flow rate  ,  the density of water  ,  the water  temperature difference in and out collector  ( ÄT  )  ,  the performance of solar water heaters  ( q  )  , and processing  the data graphically . The results of the study of each color plate solar collector plate showed that the color black has the highest absorption compared with red and blue , because the color black has emissivity close to 1 ( objects that are almost black)  is a  transmitter as well as a good heat absorber. Kata kunci: Kolektor, emisivitas, warna plat, air
PENGARUH PUTARAN SPINDEL, GERAK MAKAN DAN SUDUT MATA PAHAT TERHADAP GETARAN BENDA KERJA ALUMINIUM 6061 PADA PROSES DRILLING Hadiyoto, Agung Eko; Mulyadi, Santoso; Djumhariyanto, Dwi
ROTOR Vol 7, No 2 (2014)
Publisher : ROTOR

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Abstract

Chatter in drilling process due to excitation, both from within and from outside the system but the resulting chatter effect is very dependent on the excitation frequency and the elements of the cheater system itself . This study aimed to determine the effect of spindle speed, feeding rate and tool angle in consideration of aspects of chatter in drilling process. In this experimental design experiments conducted using Drill Machine Model KMR Kao Ming-700DS. Spindle speed used is 136 rpm, 368 rpm and 681 rpm. Feeding used is 0.07 mm/rotation, 0.13 mm/rotation, 0.22 mm/rotation and use a variety of tool angle is 90˚, 100˚ and 118˚. Materials used for the experiment was aluminium 6061. chatter measurement results work material drilling process using a series of chatter test equipment with a number of fully testing is testing 27. Analysis of the data used is the linear regression. From the results of the testing results of the regression equation A = 103.371* (n)0.627* (f )0.581 * (2Kr)1.112 and R-square value 81.6 %. Spindle speed parameter, feed rate and tool angle jointly effect to the chatter of work material in drilling process. Keywords: Drilling, Chatter, Feeding, Spindle Speed
ANALISA TEGANGAN VON MISES PADA ALAT BANTU JALAN (WALKER) Jokowiyono, Sadeli; Mulyadi, Santoso
ROTOR Vol 5, No 2 (2012)
Publisher : ROTOR

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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 bodys 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, Parkinsons, 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.
PENGARUH KECEPATAN POTONG, GERAK MAKAN DAN KETEBALAN PEMOTONGAN TERHADAP GETARAN BENDA KERJA PADA PROSES SEKRAP Mulyadi, Santoso
ROTOR Vol 5, No 1 (2012)
Publisher : ROTOR

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Abstract

Shaping  machine  is  a  machine  tool  used  to  modify  the  surface  of  the workpiece into a flat surface, good story, angled, and the flow corresponding to the shape  and  size  desired.  Shaping  process  is  a  process  similar  to  the  lathe,  the difference is in motion the process of intersection. In the process shaping machine tools with straight main motion back and forth vertically or horizontally. Chisel cut motion  in  a  straight  motion  of  the  workpiece  is  translational.  In  this  case  the workpiece and cutting tool is at rest moving straight translation. At the chisel to move back, move the workpiece also bait (feeding). So your back will chisel stuck in a moving workpiece. Shaping machinery industry in the world used to work on areas of flat, convex, concave, disorderly, in a horizontal position, vertical, or oblique, etc. From the research results can be seen the effect of the parameters used to the chatter values obtained chisel and roundness. Can be seen carving the smallest value of the vibration generated from experimental data 1 is =0.5562 m/s2 at n = 5 m/min, f = 0,2 and a = 1 mm. While the biggest chisel vibration acceleration values obtained from experimental data collection to 27 for = 5,1659 m/s2 at n = 11 m/min, f = 0,6 and a = 2 mm. The results in general that the value of vibration acceleration, after the feeding motion raised the value of vibration acceleration of the workpiece increases, this is because the larger the feed motion is used then the resulting anger is also growing thicker so that the necessary cutting force increases. As a result, the tangential force is also up and cause the radial force and moment coupling. Keywords: cutting speed. feeding, dept of cut,  workpiece and vibration.
ANALISA TEGANGAN-REGANGAN PRODUK TONGKAT LANSIA DENGAN MENGGUNAKAN METODE ELEMEN HINGGA Mulyadi, Santoso
ROTOR Vol 4, No 1 (2011)
Publisher : ROTOR

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Abstract

In any design done must consider the strength of the staff. The strength that must be considered regarding the dimensions, materials, and stick structure. In the previous elderly rod product design, structural analysis found that by just using the help of software, so that the power structure of the stick product has not yet been fully elderly a top priority. This is because the previous data was found that the maximum load that can be received by elderly stick it is 45 N. It appears that the greatest stress occurs is still under the stress of the material itself permits. The voltage that occurs on the order of 6.47e +006 N/m2 located on the handle of the stick while the minimum stress acting on the order of 1.29e-008 N/m2 pipe located at the upper stalk. So the calculation needs to be done manually to review the results of previous calculations, in order to improve and enhance the strength of the product stick elderly. Finite element method is a numerical method used to solve technical problems and a symptom phisis metematis of which include stress, strain, strength, and vibration analysis. This finite element method to compare between the calculations using CATIA software and using the calculations manually. In this case the finite element method to be used is a 2D finite element method (field) is a triangular element with 3 nodes. Using Finite Element Method, the biggest stress on the element 5 with a large voltage of σx = 2.505 x 104, and the biggest strain on the element 3 with a large strain εx = 0.272. And failure obtained Theory states: Maximum Normal-Stress Theory declared safe. Because it is still within safe limits. Maximum Shear-Stress Theory  declared unsafe.   Keywords: stick, stress, strain and finite element
PENINGKATAN KUALITAS PRODUK UKM KURSI LIPAT DENGAN METODE INTERNAL PRESSURE DAN RANCANG BANGUN MESIN BENDING KONVENSIONAL Hermawan, Yuni; Mulyadi, Santoso
ROTOR Vol 6, No 2 (2013)
Publisher : ROTOR

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Abstract

Product with quality obtained from existence of good forming process. Ovality one of deviation which is because of process bending. Process bending donewithout and internal  pressure. Internal pressure used: 100, 200, 250 and 300 bar. Equipments used in course of bending consisted of the hydraulic pump, pressure gauge, regulator / valve, T Fitting, Oli SAE 40 and Nivle Pipe ( NPT).For that require to be a research to analyse the hydraulic pressure influence to ovality process of bending of pipe of circular of raw material camp chair. Research done to designed experiment with the diameter tube 16, 19.05 and 25.4 mm. Its result hydraulic pressure yielding ovality minimum is for the D of tube 16 mm equal to 300 bar while for the D of tube 19.05 and 25.4 equal to 250 bar. Keywords: bending process, ovality and hydraulic pressure.
OPTIMASI VARIASI DIAMETER NOZZLE, TEKANAN UDARA, DAN SUHU PENGERINGAN PADA PELAPISAN BAJA St37 MENGGUNAKAN METODE RESPONSE SURFACE Hutama, Tri Surya; Darsin, Mahros; Mulyadi, Santoso
Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol 10, No 2 (2019): JURNAL SIMETRIS VOLUME 10 NO 2 TAHUN 2019
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1333.676 KB) | DOI: 10.24176/simet.v10i2.3490

Abstract

Pengecatan adalah proses pelapisan yang diterapkan pada permukaan suatu benda. Tujuan dari pengecatan ada dua, yaitu protektif dan dekoratif. Dari segi protektif cat dapat dinilai dari ketebalan dan jika  dari  dekoratif  cat  dapat  dilihat  dari  segi  kekilapan.  Tujuan  dari  penelitian  ini  adalah  untuk mengetahui pengaruh dari kombinasi parameter yang dapat menghasilkan ketebalan yang maksimum. Desain eksperimen yang digunakan adalah Response Surface Method (Box-Behnken design), 15 eksperimen dengan masing-masing 3 kali pengulangan.  Kombinasi parameter dan level yang digunakan yaitu diameter nozzle (1.2mm, 1.3mm, dan 1.4mm), tekanan udara (2bar, 3bar, dan 4bar), dan suhu pengeringan  (65oC,  70oC,  75oC).  Metode  pengecatan  menggunakan  spray  painting  dengan  3  kali pelapisan dengan jarak 15cm. Setelah melalui proses pengeringan spesimen diuji menggunakan alat ukur thickness  gauge  yang  memiliki  sepsifikasi  rentang  pengukuran  0-1250µm/0-50mil  dengan  akurasi±2.5µm. Data hasil pengukuran ketebalan diolah menggunakan software Minitab 18 dan  didapatkan persamaan order kedua hubungan antara ketebalan dan parameter pengecatan dinyatakan sebagai ?k =105.61 ? 2.522 X1 - 7,616 X2- 7,744 X3- 2,9 X12- 1,82 X22- 3,91 X32 + 1,94 X1 X2   + 1,64 X1 X3 - 3,66 X2X3; dengan X1, X2  dan X3  merujuk ke parameter diameter nozzle, tekanan penyemprotan dan suhu pengeringan. Faktor yang berpengaruh dari ketiga variasi adalah suhu pengeringan dengan nilai koefisiensquare sebesar 3.91, p-value ?1(0.000) dan p-value ?2 (0.018). Dari penggunaan Response Surface Method (Box-Behnken design) didapatkan hasil ketebalan yang maksimum yaitu 112,472?m dengan kombinasi parameter diameter nozzle 1,25mm, tekanan 2bar dan suhu pengeringan 67,32 ?.
PENGARUH TIPE SINGLE DAN DOUBLE ROW ANGULAR CONTACT BALL BEARING TERHADAP ROLLING RESISTANCE Elsyamba, Alex Ttesa; Mulyadi, Santoso; Fachri, Boy Arief
J-Proteksion Vol 3, No 2 (2019): J-Proteksion
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/jp.v3i2.2251

Abstract

Perkembangan teknologi pada kendaraan, terutama pada mobil listrik, meningkat dengan pesat. Mobil dirancang khusus untuk menghasilkan tingkat efisiensi yang tinggi. Kemajuan ini ditandai oleh banyak penelitian tentang efek efisiensi kendaraan, salah satunya adalah mengetahui nilai rolling resistance. Bearing adalah elemen mesin yang memengaruhi nilai rolling resistance sehingga peralatan uji rolling resistance perlu dirancang untuk memudahkan proses pengujian. Dalam penelitian ini, pengujian dilakukan dengan menggunakan single row angular contact ball bearing (7200, 7201) dan double row angular contact ball bearing (5200, 5201) yang diuji dengan variasi putaran 290 rpm, 310 rpm dan 330 rpm dan beban flywheel 200 N disesuaikan dengan karakteristik mobil yang diteliti. Hasil yang diperoleh oleh gaya rolling resistance terkecil dalam bentuk single row angular contact ball bearing (7201) dengan putaran 290 rpm diperoleh pada 0,6531 N dan gaya rolling resistance terkecil adalah tipe double row angular contact ball bearing (5200) dengan rotasi 290 rpm dari 0,7562 N.
Analisis Penyerapan Energi Kinetik pada Berbagai Variasi Kecepatan dan Inersia Flywheel Faizun, Muhammad Muhtada; Basuki, Hari Arbiantara; Mulyadi, Santoso
Jurnal Rekayasa Mesin Vol 5, No 3 (2014)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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Abstract

Kinetyc Energy Recovery system (KERS) is a mechanism of non convensional breaking system to absorb and recovery kynetic energy from breaking desseleration by the vehycle asstep of increasing vehichleeficiency. At this moment Kinetyc Energy Recovery system (KERS) are applycated on high speed vehicle, hybrid vehicle, and heavy duty vehicle, usually F1 race car, FerraryEnzo sport car, Flybus and modern truck. The absorbtion of kynetic energy use flywheel. Kynetic energy is effected by flywheel inertia and duration. The purpose of this research is to know absorbtion of kynetic energy from flywheel with 2 various of inertia from KERS type mechanism and wheel velocity various between 800rpm until 1800rpm. This research was done at Design Laboratory of Mechanical Direction Engineering Faculty of Jember University. Conclusion from the research is the biggest absorbtion energy in flywheel from various inertia 0,0317kg.m 2 at 1800rpm are 23.210,72 Joule.Keywords: Kinetyc Energy Recovery system (KERS), flywheel, Inersia, kynetic energy, absorbed energy
Simulasi Gaya Pemotongan pada Proses Bubut dengan Software Third Wave Advantedge Qoryah, Rika Dwi Hidayatul; Sari, Herninda Ayu Meylinda; Darsin, Mahros; Mulyadi, Santoso
Jurnal Rekayasa Mesin Vol 12, No 2 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2021.012.02.17

Abstract

The cutting force that reacts to cutting tool and workpieces will result deflection. Deflection is the cause of product deviation and vibration sources that can shorten the life of the cutting tool. Simulation of machining process is carried out to get an estimate of cutting force in some machining process conditions., then compare it to the experiments. The research aims to find out the influence of spindle rotary speed, feed rate and depth of cut on cutting forces in turning process with cutting tool HSS and workpiece Al 6061. This research uses three-dimensional simulation method using Third Wave AdvantEdge software. Following by comparison between the simulation with the experiments results. The simulation was in accordance to the experiments in term of the magnitude of the forces, from the biggest they are tangential, axial, and radial force respectively. Cutting force will decrease with increased spindle turning speed. Cutting force will increase with the rising feed rate and depth of cut. However, the simalution still highly deviate from the experiments at the rate of 71%, 44.3%, and 21.3% for axial, radial and tangential forces respectively. The possible cause of these high errors relates to forces measuring method in experiments.
Co-Authors ,Aswatama, Ketut Achmad 'Ima Duddin Afril Priyanto Agung Budi Cahyono Agung Eko Hadiyoto Agung Eko Hadiyoto, Agung Eko Agus Subekti Prakoso Agus Triono Ahmad Adib Rosyadi Ahmad Ayyub Syaiful Ahmad Syuhri Alex Ttesa Elsyamba Alfredo Bayu Satriya Anam, M. Khairul Andi Kurniawan Andi Sanata Arif Bigwanto Aris Zainul Mutaqien Aris Zainul Muttaqin Aswatama, Ketut Boy Arief Fachri Cahya Alief Prasetyo Cahya Alief Prasetyo Danang Muharyanto Dedi Dwilaksana Devita Amelia Devlin, Nigel Gavriel Digdo Listyadi, Digdo Dinasti Achmad Tristanto Dwi Djumhariyanto Elsyamba, Alex Ttesa Erno Widayanto, Erno Faizun, Muhammad Muhtada Firdausyah, Nalurita Gaguk Jati Sukamto Gaguk Jatisukamto Ghaffar, Jakfat Maulid Hari Arbiantara Hari Arbiantara Basuki Hari Arbiantara, Hari Hari Sutjahjono Haris Dwi Armyanto Harizalni SE Harizalni SE, Harizalni Hary Sutjahjono Hendry Wicaksana Hentihu, Fahrur Rozy Hutama, Tri Surya Ilminafik, Nasrul Imam Sholahuddin Imam Sholahudin Intan Hardiatama Ivan Permadi Mahfud Khoirur Rohman Krisna Murti Kustanto, M Nurkoyim M Arief Hidayat M Asrofi M Dimyati Nashrullah M Dimyati Nashrullah Mahros Darsin Melbi Mahardika Mochamad Asrofi Mochamad Trifiananto Muh Nurkoyim Kustanto Muh. Nurkoyim Kustanto Muhammad Trifiananto Nasrul Ilminnafik Novi Nur Hamimah Rahma Rei Sakura Rika Dwi Hidayatul Qoryah Rika Dwi Qoryah Ririn Endah Badriani, Ririn Endah Sadeli Jokowiyono Sadeli Jokowiyono, Sadeli Salahuddin j Salahuddin Junus Salman Al Farisi Siregar Sari, Herninda Ayu Meylinda Setiawan Okik Aris Sujito Sujito Syamsul Arifin Tri Surya Hutama Widodo, Jojok Widya Cahyadi Yuni Hermawan Yusca Alvantio Permana