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All Journal REKAYASA Info-Teknik Scientific Journal of Mechanical Engineering Kinematika International Journal of Science, Engineering and Information Technology JTAM ROTARY
Achmad Kusairi Samlawi
University Of Trunojoyo Madura
Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

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Journal : JTAM ROTARY

 1 
ANALISA PENGENDALIAN RISIKO KERJA PREVENTIVE MAINTENANCE SINGLE POINT MOORING DENGAN METODE RISK ASSESMENT Yuliana Isnani; Achmad Kusairi Samlawi
JTAM ROTARY Vol 1, No 1 (2019): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v1i1.1406

Abstract

This study aims to determine the working risk of preventive maintenance Single Point Mooring and to determine the existing risk control on preventive maintenance activities Single Point Mooring in PT. Pertamina RU-V Balikpapan. This research is a qualitative descriptive research with observasional approach. The method used is case study on PT. Pertamina RU-V Balikpapan. Data obtained through observation, interview, and documentation. The validity of data is done by membercheck method, and data analysis using semi quantitative risk assesment with AS/NZS 4360 Standard. The results showed (1) the percentage of working risk of Single Point Mooring preventive maintenance activity using risk assesment method shows 29,41% low risk, 64,70% medium risk, and 5,88% high risk. (2) 6 risk controls methods are elimination, substitution, engineering control, isolation, administration control and personal protective equipment. The dominant control method used is the metod of personal protective equipment and administration control. The prevention of occupational injuries addressed to the environment of machines, work equipment, and especially human factors
ANALISA KEGAGALAN KOMPONEN DRIVE PINION GEAR PADA SWING MOTOR EXCAVATOR CATERPILLAR 349D Andi Fatkurocman; Ach. Kusairi Samlawi
JTAM ROTARY Vol 2, No 1 (2020): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v2i1.2006

Abstract

Penelitian ini bertujuan untuk mengetahui alasan fraktur yang terjadi pada drive pinion gear unit motor swing Excavator Caterpillar 349 d. Dalam penelitian ini dilakukan beberapa tahapan yaitu pengamatan visual dan pengamatan makro, pengujian komposisi struktur logam, dan pemodelan load and latch menggunakan Autodesk Inventor 2014 sebelum mendapatkan hasil akhir. Hasil yang diperoleh dari penelitian ini adalah bahwa ada kurangnya presisi antara pinion drive dan planetary gear karena pin planet yang tidak dapat berfungsi sebagai pemegang planetary gear sehingga rotasi planet rentan terhadap tabrakan sebagai pemicu yang mengakibatkan cacat. Pada proses analisis tegangan menggunakan software autodesk inventor 2014 versi mahasiswa, hasil analisis nilai von misses adalah 9,798 Mpa jauh lebih kecil dari batas elastisitas material 790 MPa sehingga faktor pembebanan tidak menyebabkan sebuah kesalahan. This research is purpose to knowing the reason of the fracture that happen in drive pinion gear of the swing motor unit Excavator Caterpillar 349 d. In this research is doing  by several stage it is visual observation and macro observation, testing of metal structure composition, and load and latch modeling using Autodesk Inventor 2014 before getting the final result. The results obtained from this study are that there is a lack of precision between drive pinion gear and planetary gear due to planetary pins that cannot function as planetary gear holders so that planetary rotations are prone to hilarious triggering collisions resulting in defects. In the process of stress analysis using the student version of autodesk inventor 2014 software, the results of the analysis of the value of von misses is 9.798 Mpa are much smaller than the limit of material elasticity of 790 MPa so that the loading factor does not cause a fault.
PENGARUH QUENCHING DENGAN MEDIA PENDINGIN AIR DAN OLI TERHADAP MECHANICAL PROPERTIS BAJA S45C Deni Setiadi; Achmad Kusairi Samlawi
JTAM ROTARY Vol 1, No 2 (2019): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v1i2.1751

Abstract

The role of steel in the industrial world today is very important, especially in terms of making components related to violence such as gears, fly wheel, axe, and so forth.This steel has a high hardness for components that require hardness, to uletan and resistance to friction. get hardness and resistance to steel hence need heat treatment process using Quenching process. The material of this research is S45C carbon steel with specimen number 1 for hardness test before treatment and after treatment with rockwell test, this process is done in Central Laboratory of FMIPA UM, unfortunate. In this process heat treatment is carried out at temperatures of 800⁰C and 900⁰C with water and oil cooling medium, from the results of comparative analysis on S45C steel before and after the treatment obtained increased hardness. This can be seen from the test analysis in which 93 kgf of hardness n is for the untreated specimens. At a temperature of 800⁰C with a water cooling medium at a crude value of 94.6 kgf, and on oil cooling medium at a hardness value of 92.5 kgf. At a temperature of 900⁰C with a water cooling medium at a hardness value of 93.5 kgf and on the oil cooling medium at a value of 93 kgf. Can be concluded from all the cooling media is the highest media water with value of violence 94.6 kgf.Keywords: S45C Steel, Quenching, Cooling
PENGARUH PROSES QUENCHING DENGAN MEDIA PENDINGIN AIR DAN OLI TERHADAP KEKERASAN BAJA DAN STRUKTUR MIKRO BAJA S45C Anton Tri Wibowo; Achmad Kusairi Samlawi
JTAM ROTARY Vol 2, No 2 (2020): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v2i2.2410

Abstract

Perlakuan panas merupakan salah satu alternatif untuk meningkatkan kualitas suatu produk baja, pada saat mengoperasikan excavator di pertambangan tidak menutup kemungkinan komponen yang rusak atau aus harus segera diganti karena akan menghambat kinerja alat berat tersebut, tidak jarang akibatnya. untuk ketersediaan spare part original sedikit atau harus dipesan terlebih dahulu, untuk mengatasi lamanya waktu penggantian tentunya pihak perusahaan akan mencari komponen non original yang banyak beredar dipasaran tentunya dari segi kualitas atau waktu pemakaian. menjadi lebih pendek dari komponen aslinya. Untuk meningkatkan kualitas komponen tersebut maka dilakukan proses heat treatment (quenching) untuk meningkatkan kualitas komponen tersebut. Perlakuan panas dilakukan mulai dari memanaskan spesimen hingga suhu yang sesuai divariasikan (800 °C, 850 °C dan 900 °C) kemudian ditahan di dalam oven selama 2 jam dan kemudian didinginkan secara cepat menggunakan air dan minyak, jenis pendinginan ini akan berpengaruh kekerasan dan mikro. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh temperatur quenching dan jenis pendinginan terhadap kekerasan dan mikrostruktur. Heat treatment is an alternative to improve the quality of a steel product, when operating an excavator in mining does not rule out the possibility of damaged or worn components which must be replaced immediately because it will hamper the performance of the heavy equipment, not infrequently due to the availability of spare the original part is a little or must be ordered in advance, to overcome the lengthy replacement time of course the company will look for non-original components that are circulating in the market of course in terms of quality or usage time to be shorter than the original components. To improve the quality of these components, a heat treatment (quenching) process is carried out to improve the quality of the components. Heat treatment carried out starting from heating the specimens to the appropriate temperature varied (800 °C, 850 °C and 900 °C) then held in the oven for 2 hours and then cooled quickly using water and oil, this type of cooling will affect the hardness and microstructure. The purpose of this study was to determine the effect of quenching temperature and type of cooling on hardness and microstructure.
PENGARUH AKTIVASI (KIMIA – FISIKA) PADA ARANG KAYU LABAN TERHADAP EFEKTIVITAS PEMURNIAN BIOGAS & UNJUK KINERJA GENERATOR – SET Hadi Suwarno; Ach. Kusairi Samlawi
JTAM ROTARY Vol 2, No 1 (2020): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v2i1.2004

Abstract

Penelitian ini bertujuan untuk melihat pengaruh aktivasi (kimia - fisika) pada arang kayu laban terhadap efektivitas pemurnian biogas dan kinerja generator - set. Dalam penelitian ini bahan yang digunakan sebagai media adsorben adalah arang kayu bubuk laban 40-mesh dengan variasi: tidak ada perawatan & aktivasi (kimia - fisika) dalam bentuk arang kayu arang bubuk 40-jala menggunakan NaOH 48% sebagai aktivator untuk 24 jam kemudian dikeringkan menggunakan tungku pada suhu 100 oC selama 1 jam. Setelah itu, arang kering dipanaskan menggunakan tungku pada suhu (550 oC, 650 oC, & 750 oC) selama 1 jam. Pengujian dilakukan dengan menggunakan gas analyzer, tachometer, & infrared thermometer. Hasil pengujian menunjukkan bahwa variasi dengan aktivasi (kimia - fisika) pada 750 oC memberikan pengaruh terbaik terhadap efektivitas pemurnian biogas dengan nilai 21% untuk efektivitas karbon dioksida (CO2) & 42,77% untuk efektivitas metana (CH4), serta kinerja genset menunjukkan stabilitas tegangan yang buruk di mana tegangan tetap stabil tanpa beban tetapi tidak stabil saat diberi beban. This study aims to see the effect of activation (chemical - physics) on laban wood charcoal to the effectiveness of biogas purification and performance of generator - set. In this study the material used as an adsorbent medium is a 40-mesh powdered laban wood charcoal with variation: no treatment & activation (chemical - physics) in the form of a 40-mesh powdered charcoal wood charcoal using NaOH 48% as activator for 24 hours then dried using furnace at 100 oC for 1 hour. After that, the dried charcoal was heated using the furnace at temperature (550 oC, 650 oC, & 750 oC) for 1 hour. The test was performed by using gas analyzer, tachometer, & infrared thermometer. The test results showed that variation with activation (chemical - physics) at 750 oC gave the best influence to the effectiveness of biogas purification with value of 21% for carbon dioxide (CO2) effectiveness & 42,77% for methane (CH4) effectiveness , as well as the performance of  generator set indicates poor voltage stability where the voltage remains stable at no load but unstable when given the load.
ANALISA PATAHAN PLANETARY PINION GEAR TRANSMISI DI UNIT EXCAVATOR PC 300 LC-7 KOMATSU Saharil Saharil; Achmad Kusairi Samlawi
JTAM ROTARY Vol 1, No 1 (2019): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v1i1.1405

Abstract

Gears are one of the engine components in the transmission system which functions to forward power from the drive shaft to the shaft to be moved. The speed ratio of the driving gear with the gear that is driven depends on the number of gears of each gear. Fault (Fracture) is the separation of a component or material into two or more parts, Ductile and brittle are the relative terms of certain faults, one type or another depending on the situation, the ductile fracture surface has its own characteristic in the macroscopic. The ductile fracture in the specimen leads to a point. The brittle fracture does not have plastic deformation. Decohesive rupture is a fault that occurs due to environmental reactions Autodesk Inventor is software development from its predecessor software in the CAD field, such as AutoCad and Mechanical Desktop. This software is made with various advantages with its predecessor software. The fracture on the planetary pinion gear Transmission in the pc300lc-7 excavator unit occurs because of the severe load that occurs at the operation, based on von misses analysis can be known (15,57 Mpa), principal stress (9,046 Mpa), and von misses stress with moment twisting (3,088 Mpa) is much smaller than the material elasticity limit of 689 MPa so that there is no stress concentration. The mechanism of failure occurs starting from the shock load in the material without any elastic deformation.
PEMANFAATAN BIOGAS YANG TELAH DIMURNIKAN DENGAN MENGGUNAKAN ARANG BAMBU AKTIF SEBAGAI BAHAN BAKAR GENERATOR-SET MOTOR BENSIN Yepta Sintaku Tulus Tu’u; Achmad Kusairi Samlawi
JTAM ROTARY Vol 2, No 2 (2020): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v2i2.2419

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui kadar CO2 dan CH4 biogas setelah pemurnian menggunakan arang bambu aktif dan untuk mengetahui kinerja Generator-Set menggunakan biogas dengan kandungan CO2 terendah sebagai bahan bakar. Penelitian ini dilakukan di TPA Cahaya Kencana Kecamatan Karang Intan Kabupaten Banjar. Aktivasi yang dilakukan pada penelitian ini adalah aktivasi fisika pada suhu 275ºC, 300ºC dan 325ºC selama 1 jam kemudian direndam dalam larutan NaOH selama satu hari (24 jam). Dari pengujian didapatkan satu sampel arang yang paling baik menyerap CO2, yaitu sampel arang dengan aktivasi fisika-kimia pada suhu 325ºC. The purpose of this study was to determine the levels of CO2 and CH4 biogas after purification using active bamboo charcoal and to find out the performance of the Generator-Set using biogas with the lowest CO2 content as fuel. This research was conducted at the TPA Cahaya Kencana Kecamatan Karang Intan, Kabupaten Banjar. Activation carried out in this study is physics activation at 275ºC, 300ºC and 325ºC for 1 hour and then immersed in NaOH solution for one day (24 hours). From the tests obtained one charcoal sample that best absorbs CO2, namely charcoal samples with physico-chemical activation at 325ºC.
PENGARUH ORIENTASI SERAT PADA KOMPOSIT KAIN POLYPROPYLINE Muhammad Ariyansah; Achmad Kusairi Samlawi
JTAM ROTARY Vol 1, No 1 (2019): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v1i1.1399

Abstract

The purpose of this research is to know the effect of fiber orientation variation on tensile strength and impact strength on polypropyline fabric composite. In this study the reinforcing materials used were polypropyline fabrics with variations of fiber orientation 0º:-45º:0 ; 0:45º:0º ; and 0º:90:0º using unsaturated polyester resin 108 as the matrix. Preparation by hand lay up, impact testing conducted with reference standard ASTM D5942-96 and tensile testing conducted with reference ASTM D638-03 standard. The test results showed that the variation with 0°:90°:0° orientation gave the best effect to the impact test and tensile test with the impact price of 128,66 Joule / cm² and tensile strength of 98,49 MPa. Keywords: Polypropyline, Composite, Impact Strength, Tensile Strength
Co-Authors Akhmad Syarief Andi Fatkurocman Antan Noraidi Maulana Anton Tri Wibowo Deni Setiadi Fatanur Baity Tsulutsya Hadi Suwarno Hairil Budiarto Hasan Sajali Ibnu Irawan Karno Karno Kelvin Yangsen Lailan Ni`mah Lintar Hariyandi Miftahul Choiro Muhammad Ariyansah Muhammad Rijali Muhammad Zaini Mustafa Bakeri Pandu Yuda Permana Qomariyatus Sholehah Saharil Saharil Wahyu Slamet Pamungkas Yepta Sintaku Tulus Tu’u Yulian Firmana Arifin Yuliana Isnani