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Mastariyanto Perdana
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Jurnal Teknik Mesin
Published by Institut Teknologi Padang
ISSN : 20894880     EISSN : 25988263     DOI : https://doi.org/10.21063/jtm
Core Subject : Science, Engineering,
Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
JTM is a journal aims to be a peer-reviewed platform and an authoritative source of information. We publish original research papers, review articles and case studies focused on mechanical engineering and other related topics. All papers are peer-reviewed. JTM is managed to be issued twice in every volume (April and October). The Scope of JTM is: Energy Science and Engineering Applied Mechanics and Materials Design, Manufacturing and Product Development Control, Instrumentation and Robotics
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 247 Documents
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Basic Dual-Arm Manipulator Kinematics Using Forward Kinematics Method and Aided by Autodesk Inventor Asmara Yanto
Jurnal Teknik Mesin Vol 8 No 2 (2018): Jurnal Teknik Mesin Vol.8 No.2 October 2018
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2018.v8.i2.78-87

Abstract

This work aims to simulate the kinematics of a basic dual-arm manipulator by using the forward kinematics method and aided by the Autodesk Inventor software. Dual-arm manipulator consists of 7 joints and 6 links. One base link, one shoulder link, two right arm links and two left arm links. Each link is designed with the following length: 310 mm length of link base, 580 mm length of shoulder link, 280 mm length of the first right arm link and left arm link, 222 mm length of the second right arm link and left arm link. The degree of freedom of the dual-arm manipulator is five rotations (5R), namely R1 for base link and shoulder link, R2 for the first left arm link, R3 for the second left arm link, R4 for the first right arm link and R5 for the second right arm link. Parts and assembly of the dual-arm manipulator are designed with Autodesk Inventor. Dual-arm manipulator motions were simulated in two types of trajectory planning. From the simulation for both trajectory planning, the positions of ended left arm and right arm for each step of trajectory planning were visualized and defined.
Static Analysis of Structural Structure of Vertical Wind Tunnel (VWT) Design By Catia V5R21 Muhamad Jalu Purnomo
Jurnal Teknik Mesin Vol 8 No 2 (2018): Jurnal Teknik Mesin Vol.8 No.2 October 2018
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2018.v8.i2.88-92

Abstract

Vertical Wind Tunnel (VWT) is a wind tunnel application that is directed vertically upwards, so that the air impulse is applied as an alternative to people (athletes) feeling the sensation of flying, like parachuting when jumping at altitude out of an airplanea. VWT will certainly reduce the potential for accidents, improve the efficiency of skydiving, and improve the quality of skydiving athletes. To ensure the design of the VWT structure is safe, it is necessary to test the strength of the structure with load = 55212.16 Newton and load thrust = 46826.3516 Newton. VWT structure uses 2 types of steel material, namely the type of Steel A36 and Steel A441 because this type has the appropriate material property other than that it is very easy to get on the market. then simulated using CATIA V5R21 software. So that the obtained value of Steel A36 Margin of Safety (MS) is 2.79 (load) and 3.48 (load thrust). For Steel A441, the MS value is 4.52 (load) and 5.51 (load thrust), from all the two materials producing an MS value> 1, indicating that the design of the VWT structure is said to be safe.
Effect Of Special Tool Completeness During Regular Service At Two Official Honda Workshops (HCM & CPM) Padang On Customer Satisfaction Dian Wahyu
Jurnal Teknik Mesin Vol 8 No 2 (2018): Jurnal Teknik Mesin Vol.8 No.2 October 2018
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2018.v8.i2.93-100

Abstract

AHASS HCM and CPM workshops are Honda's official workshops separated by a distance of only 1.6 km located in the city of Padang. The number of customers in these two workshops is very much different, even though the HCM workshop has a better form of building and facilities compared to the CPM workshop. Research needs to be done to see the factors that influence customer interest in choosing a workshop. Performing regular service requires equipment. Tools that are often overlooked are special tools. If the workshop does not have special tools, the mechanics will have difficulty in the process of dismantling and installing or adjusting, so that the impact on the performance of the motorcycle that has been serviced. Research on the effect of the completeness of special tools during regular service at two official Honda workshops (HCM & CPM) in Padang on customer satisfaction has been successfully carried out and the results show a significant difference. The measurement of the influence of special tools on customer satisfaction is measured using the SERVQUAL method, so that service quality in both workshops can be seen. The SERVQUAL method uses several dimensions (tangible, reliability, responsiveness, assurance, empathy) which will then be translated into 16 variables as indicators to create programs that can control services oriented to customer satisfaction. The results showed that both workshops (HCM and CPM) had a gap between perception and expectations in each dimension. The average total gap for each dimension is -0.44486 for the HCM workshop and -0.2902 for the CPM workshop. This shows that the quality of service expected by customers has not yet been achieved in both workshops, but the quality of service from CPM workshops is much better compared to HCM workshops. This causes more CPM workshop customers compared to HCM repair shops.
PENGARUH WAKTU TAHAN PROSES PACK CARBURIZING PADA BAJA KARBON RENDAH DENGAN MENGGUNAKAN CALCIUM CARBONAT DAN ARANG TEMPURUNG KELAPA DI TINJAU DARI STRUKTUR MICRO Hafni; Nurzal
Jurnal Teknik Mesin Vol 5 No 1 (2015): Jurnal Teknik Mesin Vol.5 No.1 April 2015
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2015.v5.i1.6-11

Abstract

Karena sifatnya yang lunak, liat dan mudah dibuat, baja banyak digunakan sebagai bahan dalam pembuatan suatu produk. Untuk mendapatkan sifat yang keras pada permukaan dan tetap lunak pada intinya maka dilakukan proses pengerasan permukaan (face hardening), sehingga produk tersebut dapat difungsikan sesuai dengan tujuan desainnya. Salah satu cara untuk melakukan pengerasan permukaan ini adalah dengan media carbon padat atau pack carburizing. Untuk melakukan proses carburizing ini diperlukan sebuah tungku pembakar yang dirancang tahan panas serta mudah dioperasikan. aman dengan bahan bakar batu bara untuk penguji tungku yang telah dirancang dilakukan pengujian pada baja rabon rendah dengan mengunakan media karburisasi campuran arang tempurung kelapa dan Calsium Carbonat (CaCo3). Temperatur pemanasan 950 0C dan variasi waktu tahan; 3 jam 4 jam dan 5 jam. Kemudian dilanjukan dengan proses quenching. Dari hasil metallography diperoleh sampel uji dengan waktu tahan 4 jam dan 5 jam pada sisi luarnya terlihat struktur mikro martensite dan bagian tengah ferrite – pearlite. Ini menunjukan bahan uji telah terjadi penyerapan penambahan unsur karbon sehingga waktu dilakukan quenching terbentuk struktur mikro martensite .
ANALISA STRUKTUR MIKRO LAPISAN KROM DAN NIKEL PADA BAHAN DASAR KUNINGAN Asfarizal Saad; Dadang Eka Juanda
Jurnal Teknik Mesin Vol 5 No 1 (2015): Jurnal Teknik Mesin Vol.5 No.1 April 2015
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2015.v5.i1.12-17

Abstract

Chrome elektroplating in metal product is a way to increase the value of metal industial doer especially home industry. The best elektroplating can be shown in adhesion stratum in the metal, stratum shine, stratum thick, and substance of the stratum. Chrome elektroplating in a basic metal was done by two steps. First, nickel elektroplating and second, chrome elektroplating. Nickel elektroplating was done in current 3.5 Ampere, 9 Ampere, and 11 Ampere in twenty minutes. Both nickel and chrome elektroplating was done by dip method and current source from battery. Based on experimental data and the discussion, it can be perpoker substance, the thick of chrome elektroplating is 1 μm, 1.5 μm, 2.3 μm for current application 7 Ampere, 9 Ampere, and 11 Ampere solution. Coating adhesion and shiny of metal is good.
PENGARUH WAKTU PENGERINGAN DENGAN PENAMBAHAN 5% BERAT FLY ASH MELALUI DAYA SERAP AIR DAN UJI DENSITAS PADA PEMBUATAN PAVING BLOCK (BINDER PT. X) Nurzal; Yosep Budiman
Jurnal Teknik Mesin Vol 5 No 1 (2015): Jurnal Teknik Mesin Vol.5 No.1 April 2015
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2015.v5.i1.18-24

Abstract

Penelitian ini dilakukan untuk mengetahui pengaruh lama pengeringan dengan penambahan 5% berat fly ash pada pembuatan paving block dengan pengujian densitas dan daya serap air . Fly ash yang digunakan berasal dari sisa pembakaran batubara pada pembangkit listrik tenaga uap dari Sijantang Sawahlunto. Pertambahan jumlah produksi fly ash menyebabkan dampak negatif pada lingkungan, sehingga salah satu solusi untuk mengatasi dampak tersebut adalah dengan cara memanfaatkan fly ash untuk campuran paving block. Pembuatan spesimen paving block dilakukan dengan campuran 100% berat (pasir + semen + air) + 0% berat fly ash dan 95% berat (pasir + semen + air) + 5% berat fly ash dengan variasi lama pengeringan 7, 14, 21, 28, 35 hari. Bentuk spesimen uji berdasarkan SNI 03-0691-1996 dengan ukuran paving block 20 cm x 10 cm x 6 cm. Hasil penelitian menunjukkan bahwa kondisi optimal diperoleh pada lama pengeringan 21 hari yaitu dengan densitas sebesar 2,41 gr/cm3 dan daya serap air 2,94 % pada komposisi penambahan 5% berat fly ash serta densitas 2,33 gr/cm3 dan daya serap air 2,80 % pada komposisi 0% berat fly ash. Menurut SNI 03-0691-1996 dapat digolongkan pada mutu A untuk jalan
PENGARUH GERAK MAKAN DAN KECEPATAN POTONG TERHADAP KEKASARAN PERMUKAAN BAJA HQ 705 PADA PROSES PEMBUBUTAN Ismet Eka Putra; Agus Wendi Syaputra
Jurnal Teknik Mesin Vol 5 No 1 (2015): Jurnal Teknik Mesin Vol.5 No.1 April 2015
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2015.v5.i1.25-28

Abstract

Quality products are obtained from the good machining process. Surface roughness is either aberrations caused by the cutting conditions of the machining process. HQ 705 is a mixture of hardened steel machining with high quality used in gear, shaft engines, and other machined components. It so conducted experiments to analyze the effect of feeding and cutting speed of motion of the surface roughness of the steel HQ 705 at the turning process. To determine the surface roughness at experiments using surface roughness tester. Experiments conducted at varying cutting speed are 40 m / min, 60 m / min, and 80 m / min. The cutting speed is set at spindle rotation 740 RPM, 900 RPM and 1230 RPM. Turning at motion feeding variated 0.05 mm / r and 0.22 mm / r. Depth of feeding made of 1 mm for any specimen. The experiment is obtained at surface roughness of motion feeding 0.05 mm / r obtained roughness value of 1.43 μm with a cutting speed of 77.28 m / min, at motion feeding 0.22 mm / r obtained roughness values of 4.296 μm with cutting speed of 46.50 m / min. HQ 705 with a conventional turning obtained roughness value is normal, at motion feeding 0.05 mm/r and depth of cut of 1 mm.
KAJIAN EKSPERIMEN SISTEM PENGKONDISIAN UDARA MENGGUNAKAN TENAGA SURYA UNTUK IKLIM TROPIS Arfidian Rachman
Jurnal Teknik Mesin Vol 5 No 1 (2015): Jurnal Teknik Mesin Vol.5 No.1 April 2015
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2015.v5.i1.29-33

Abstract

Penelitian ini adalah menghasilkan suatu sistem pengkondisian udara yang hemat energi dan ramah lingkungan, karena menggunakan tenaga matahari sebagai sumber energi termal dan tidak menggunakan refrigerant sebagai fluida kerjanya. Sistem ini dirancang untuk memenuhi kebutuhan ruang pendinginan di bagunan, di mana sistem ini menghasilkan penghematan energi mencapai 80% dibandingkan sistem pengkondisian udara pemampatan gas. Kelebihan sistem ini adalah dapat mengontrol kelembabapan dan suhu secara terpisah. Analisis ekperimental dan simulasi untuk masing-masing komponen dikhususkan pada variasi kinerja sebagai fungsi dari laju aliran udara pada bagian proses dan regenerasi, didapatkan efisiensi kolektor matahari adalah 70% pada intensitas matahari adalah 0,606 kW/m2 , pada kecepatan aliran air 4.5 m/s dengan debit aliran air 10 liter/menit. Untuk bagian sistem pengkondisian udara menggunakan dua buah roda, yaitu roda dehumidifikasi sebagai penurun kelembapan dan roda perpindahan panas sebagai penurun suhu. Kecepatan aliran udara proses dan udara regenerasi pada kedua-dua roda yaitu 3,77m/s dengan kapasitas 500m3 /jam. Dari analisa eksperimen dan simulasi didapat efektifitas roda pengering dan roda perpindahan panas adalah 56% dan 72%. Hasil dari eksperimen didapatkan nilai COP sistem ini adalah 0,3, dengan kapasitas pendinginan 5,6kW. Dengan rasio pengembalian ekonomi 5 tahun.
KINERJA ALAT PENGERING BERPUTAR M. Yahya
Jurnal Teknik Mesin Vol 5 No 1 (2015): Jurnal Teknik Mesin Vol.5 No.1 April 2015
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2015.v5.i1.34-41

Abstract

Penelitian ini bertujuan untuk menganalisa kinerja alat pengering berputar untuk mengeringkan teh hijau. Pengering ini mempunyai tiga komponen utama yaitu: heat exchanger, ruang pengering dan blower. Blower digunakan tipe induce draft fan dengan daya 0,75kW. Heat exchanger mempunyai 15 elemen pemanas listrik dengan daya terpasang sebesar 22,5kW. Ruang pengering berbentuk cylinder double cone diameter 1500 mm dan panjang 1770 mm, dan mempunyai daya penggerak silinder ruang pengering sebesar 1,5kW. Kinerja alat pengering meliputi total energi listrik yang digunakan, produktifitas energi listrik dan efisiensi termal alat pengering, pengujian dilakukan dengan mengeringkan teh hijau sebanyak 360 kg setiap pengujian dengan masing-masing kadar air awal pengeringan 38%, 40%, 42% dan 44%, pengeringan dilakukan hingga kadar air akhir standar teh hijau 5% dengan kecepatan aliran udara 12m/s dan 24m/s, dan temperatur udara 100oC dan 105oC. Dari hasil pengujian diperoleh: Penggunaan energi listrik terbesar terjadi pada kecepatan aliran udara 12m/s, temperatur 100oC, dan kadar air 44% dengan waktu pengeringan 16 jam, jumlah air bahan yang diuapkan 147,74kg yaitu sebesar 902258,38k, dan terendah terjadi pada kecepatan aliran udara 24m/s, temperatur udara 105oC, dan kadar air 38% dengan waktu pengeringan 10 jam yaitu sebesar 458205,73kJ dengan jumlah air bahan yang diuapkan 125,12kg. Efisiensi termal pengering bervariasi antara 36,97% sampai dengan 61,25%. Produktifitas energi listrik terbesar terjadi pada kecepatan aliran udara 12m/s, temperatur udara 100oC, dan kadar air awal 44% yaitu sebesar 1,18kWh/jam, dan terendah terjadi pada kecepatan aliran udara 24m/s, temperatur udara 105oC, dan kadar air awal 38% yaitu sebesar 0,54kWh/jam. Kinerja alat pengering berputar cukup baik karena memiliki efisiensi termal cukup tinggi dan produktifitas listrik rendah.
ANALISA KEKERASAN DAN FRACTURE TOUGHNESS ALUMINA DIPERKUAT SERBUK ALUMINIUM DAN TEMBAGA Hendriwan Fahmi
Jurnal Teknik Mesin Vol 5 No 1 (2015): Jurnal Teknik Mesin Vol.5 No.1 April 2015
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2015.v5.i1.42-48

Abstract

Composite is a big picture in the development of today's materials science engineering. This material seems to be able to replace the role of metallic and non-metallic materials. The purpose of this study was to determine the effect of the addition of aluminum powder (Al) and copper (Cu) in the matrix Alumina (Al2O3) on the hardness and fracture toughness values. Aluminum powder is made with water atomization process and copper powder prepared by centrifugal atomization process. Aluminum powder and copper followed by a sifting process using mesh size 50-100 to get a powder size of 125-150 µm. From the steps followed by the process of mixing the composition variation of 100% volume of Al2O3, 90% Al2O3 + 10% Volume weight of Al and Cu, 80% Volume Al2O3 + 20 wt% Al and Cu, 70% Volume Al2O3 + 30 wt% Al and Cu, 60% Volume Al2O3 + 40 wt% Al and Cu. Then do the process of compacting pressure with of 140 MPa. Sintering process is done using a furnace with a temperature of 1150 oC with Heating rate 5° C / min. In this study, the highest value is 84 HRc hardness and average of 76.83 HRc. and fracture toughness (K1C) highest this 1,388 obtained at 60% volume composition Al2O3 + 40 wt% Al and Cu with an average bending stress of 1,227 MPa.m1 / 2 .

Page 11 of 25 | Total Record : 247

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