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Jurnal Ilmiah Teknik Mesin Poros

poros
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Published by Universitas Tarumanagara

ISSN : 1410684 EISSN : 24424501 DOI : -

Core Subject : Engineering,

Mechanical Engineering

Focus and Scope Jurnal ini fokus pada hasil penelitian para dosen dan akademisi dalam bidang keilmuan: - Perancangan Mekanikal - Otomasi, Robotika - Konversi Energi - Energi Terbarukan - Proses Manufaktur - Material dan Metalurgi - Mekanika Komputasi (CFD, FEA)

Arjuna Subject : Teknik (semua kategori) - Teknik Mesin

Articles 128 Documents

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ANALISIS PERBANDINGAN UNJUK KERJA PEMANAS AIR TENAGA SURYA TIPE PLAT DATAR DENGAN SISTEM SINGLE DAN DOUBLE CUTOFF Ivan Budiman; I Made Kartika; Abrar Riza
Jurnal Ilmiah Teknik Mesin POROS Vol 14, No 1 (2016): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Abstract: Warm water is needed by human being to take a bath, wash their clothes, their dishes etc. By the photothermal conversion, the solar energy can be used to heat the water. Flat solar collector is a tool which is used to capture energy of the sun radiation then convert it into heat to heat up water in collector’s pipes. The number of glass cover used effects the performance and efficiency of the collector. From this research, it is found that the efficiency of the collector is better when the cover used are two glasses than one glasses. The temperature difference of incoming and outgoing water in the collector using two glasses 15 ̊C higher than that of one glass.

PENGUJIAN EKSPERIMENTAL UNTUK MEMPELAJARI KARAKTERISTIK GETARAN PADA MODEL ROTOR GANDA KIT MENGGUNAKAN ANALISIS PETA SPEKTRUM DAN ORBIT Noor Edy Edy
Jurnal Ilmiah Teknik Mesin POROS Vol 16, No 2 (2018): Jurnal Ilmiah Teknik Mesin Poros
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

In modern technology, vibration signal is to be utilized in predictive maintenance application,more often when Dynamic Signal Analyzer (DSA) is invented. Unballance in rotor cause significantdeflection on rotated shaft and possible damage the machine. DSA is used in monitoring a condition ofbig rotation machines such as turbin, compressor, pump and generator. This research used double rotorsshaft system which was supported with journal bearing as a modification from the real rotation machines.Two of vibration characteristic as a sign of abnormal condition in rotation machine are unballance andoil whirl phenomenon. Meanwhile, oil whirl is seen in many rotation machines that use journal bearingas support its shaft. For rotation machine with high speed, oil whirl phenomenon can cause resonance inthe system, and then become the oil whip. Based on this condition that is very reasonable for makingearly detection, identification, and looking for the solution to prevent not wanted incident.

OPTIMALISASI PARAMATER RESISTANCE SPOT WELDING UNTUK PENGELASAN TIGA TUMPUK LEMBAR BAJA SPCC Pradipta Satrio Wibisono
Jurnal Ilmiah Teknik Mesin POROS Vol 17, No 1 (2021): Jurnal Ilmiah Teknik Mesin Poros
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

In the automotive industry, the latest breakthroughs and innovations are strongly influenced bymaintaining and increasing production results so that the use and application of technology is anabsolute must, as is welding technology. Thin sheet-shaped components are found in many car bodies.One of the methods used in joining plate sheets is to use the resistance spot welding method, which is awelding process that is only carried out at a certain point using copper electrodes. In the welding method,maintaining quality in order to produce products and services that can meet the needs and expectationsof consumers related to the product's life time or service. SPCC steel (Cold Roller Stell Sheet) is one ofthe most widely used materials in car body welding applications. The characteristics and mechanicalproperties of SPCC steel from the results of the three-sheet welding were examined using the parametersof welding current, welding time, welding distance. The results showed that the increase in current wouldaffect the diameter of the electrode traces and the nuggets that were formed. The greater the current used,the larger the diameter of the trail, so that the optimum pull-shear load is at a current of 6.5 kA at adistance of 20mm with a value of 365.53 MPa, also the highest hardness value is in the nugget area witha hardness value of 595, 14 HVN at a current of 6.5 kA and from the results of measuring grain diameterin microstructural testing for the HAZ area the best at a welding current of 6.5 kA. Because the smallerthe weld grain diameter, the greater the strength of the weld joint. Then the data from the results of theshear-shear test are analyzed using the Taguchi method, and the most effective parameters in the tensilesheartest with a combination of A (6.5) B (1.5) C (15) and from the experimental results for tensile loads.slide obtained 397 MPa.

STRUKTUR MIKRO DAN SIFAT MEKANIS ALUMINIUM (Al-Si) PADA PROSES PENGECORAN MENGGUNAKAN CETAKAN LOGAM, CETAKAN PASIR DAN CETAKAN CASTABLE Martinus Mandala; Eddy Siradj; Sofyan Djamil
Jurnal Ilmiah Teknik Mesin POROS Vol 14, No 2 (2016): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Abstract: Aluminum foundry is one of the business sectors that to much in demand by the public, ranging from small scale to large scale . Through remelting process, some small-scale aluminum casting industry, using raw materials of used aluminum as the main raw material. Some of the cast products are required to have good quality to comply with quality standards on its use. This study aims to look at the difference in quality of cast aluminum (Al-Si) using three types of mold, the metal mold, sand mold, and the mold castable by testing the mechanical properties of materials that impact and Brinell hardness testing. The method used was experimental or trial. The results obtained are the result cast using a metal mold has a hardness value of the highest of 63 HBN, with a value of impact 37

PENENTUAN KECEPATAN PEMOTONGAN EFEKTIF BERDASARKAN NILAI KEKASARAN PERMUKAAN MATERIAL AA-7075 PADA PROSES FACE MILLING Sobron Y. Lubis; Rosehan Rosehan; Musa Law
Jurnal Ilmiah Teknik Mesin POROS Vol 17, No 1 (2021): Jurnal Ilmiah Teknik Mesin Poros
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

During face milling machining, several machining parameters such as feed rate and cuttingspeed determine the surface quality of the workpiece produced by the process. The selection of the rightparameters will lead to the surface quality as planned. Therefore, to improve machining effectiveness, amethod is needed to determine the appropriate machining parameters to produce the desired surfacequality. This research was conducted using a milling machine, five variations of cutting speed and fivevariations of feed rate were used to cut the workpiece aluminum alloy 7075. After machining, the surfaceroughness was measured using a surface test. The surface roughness value is then substituted into thefeed rate equation and effective cutting speed. By finding effective cutting parameters, the machiningprocess will be more efficient and effective without using unnecessary resources. From the results of thestudy note that the development equation to determine the feed rate based on the value of surfaceroughness is ???? = 0,6????√???? ????????0.443mm/tooth. Development equation to determine the effective cutting speedbased on Surface roughness value is ???????? = 3.0686????????0.124 mm/min

ANALISIS KEMAMPUAN PROSES PELAPISAN POLYUREA PADA ACRYLIC DENGAN KETEBALAN TERTENTU TERHADAP SIFAT MEKANIK Jason Arie Putra; Erwin Siahaan; Steven Darmawan
Jurnal Ilmiah Teknik Mesin POROS Vol 14, No 2 (2016): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Abstract: Coating became quite common. The coating serves as a conduit of color and also to cover the base material. Polyurea coating is a new innovation in the field of industry, so far polyurea coatings are used to coat the walls of the building and also the roof of the building to tackle the problem of leakage. This study explains how large the influence of the Polyurea coatings to acrylic. In this study which is distinguished by variations in thickness 3mm acrylic, 5mm and 8mm. This study also discusses the tensile resilience and resistance to shock loads. The purpose of this study was to determine how much influence the Polyurea coatings by comparing with Polyurea acrylic coated and uncoated. As an example of the results obtained from tensile tests that 3mm acrylic coated and uncoated increased by 39.6% acrylic 5mm by 0.66% and 1.65% acrylic 8mm. Polyurea coatings can not deliver maximum results on specimens that have smooth surfaces, so that we can see that in every test carried downhill result.

PERANCANGAN COWPER GUNA PEMANFAATAN GAS BUANG PELEBURAN LOGAM Yoska Octaviano; Yusep Mujalis; Benny Siantury; Tono Sukarnoto; Rianti Dewi Sulamet
Jurnal Ilmiah Teknik Mesin POROS Vol 12, No 2 (2014): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Abstract: A prototype of homemade furnace was built and the highest temperature it can reach during the trial process is approximately 400OC. Beside liquid metal, the furnace also produced exhaust gas as a side product. The exhaust gas is still hot. Hot gas can be used to improve the furnace’s temperature based on blast furnace method. To apply this method, the furnace should be companied with cowper. In designing cowper, several parameters should be notice. The parameters are hot gas temperature, air flow direction, and its movement ability with the furnace. Hot gas temperature will determine the number of heat absorber layers. The direction of the air flow will determine the cowper construction. Movement ability is associated with space. The design is made based on VDI 2221. The cowper design concept is cowper to store hot gas made of ramming refectories with its outer diameter similar to oil tank and the movement mechanism only applied for migration.

STUDI SIMULASI NUMERIK PENGARUH PENAMBAHAN FINS SETENGAH SILINDER DISUSUN SECARA STAGGERED TERHADAP KINERJA KOLEKTOR SURYA PEMANAS UDARA DENGAN PLAT PENYERAP V-CORRUGATED Sulaiman Ali; Djatmiko Ichsani
Jurnal Ilmiah Teknik Mesin POROS Vol 15, No 1 (2017): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Abstract: The use of solar energy by using solar collector has been extensively researched to optimize existing solar energy source, one of the methods to utilize solar energy is by using solar collector and has been widely utilized by humans in the drying process. To create a solar collector with optimum performance the thermal efficiency needs to be increased, as for increasing the thermal efficiency of solar collector one by extending the absorption field and increasing the convection heat transfer coefficient by creating a turbulent flow inside the solar collector duct, the flow turbulence can be achieved by Provides obstacle and fins disturbance to the flow direction of the working fluid under the hot absorber plate. This research was conducted with 3D Steady flow numerical simulation with turbulence viscos k-omega SST. The objective of this research is to know the optimum diameter and spacing of fins variation with 6mm, 8mm, and 10mm fins diameter, and variation of fins distance to obstacle 0,25L; 0.5L and 0.75L. The result of numerical simulation optimum fins is determined by the smallest ratio of ΔP/ΔT and this research continued to the experiment. The solar collector used in this study is a solar collector using a v-corrugated absorber plate with triangular obstacle and half cylindrical fins arranged staggered inside a solar collector duct. The results obtained from this research is, the most optimum half cylinder fins are 6 mm fins with a fins distance to obstacle 0.75L.

DINAMIKA KENDARAAN JALAN LURUS 3 PADA GEROBAK LISTRIK PENGANGKUT SAMPAH KAPASITAS 2 m3 Edward Suhartono; G Soeharsono; Danardono Agus Sumarsono
Jurnal Ilmiah Teknik Mesin POROS Vol 12, No 1 (2014): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Abstract: A residential dump transport to a temporary garbage disposal medium using a human-powered dump cart is not humane. An electrical-powered propulsion system can be one of the eco-friendly system which can be implemented to the cart, thus substitutes the human’s role to do so. This propulsion is analyzed by using vehicle dynamic analysis. Vehicle dynamic analysis which is conducted, discuss tractive effort which overcomes resistances during vehicle’s movement and accelerates the vehicle, and specification of drive train, used to drive it. Based on analytical result, it is obtained an electric dump cart model which can move at a 25 km/h maximum velocity, 20° maximum inclination while it is empty loaded, and 10° maximum inclination while it is fully loaded.

KARAKTERISTIK MEKANIK KOMPOSIT SERAT BAMBU KONTINYU DENGAN PERLAKUAN ALKALI Sofyan Djamil; Agustinus Purna Irawan
Jurnal Ilmiah Teknik Mesin POROS Vol 15, No 1 (2017): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Abstract: Commonly used reinforcement materials are fibers, particles or flakes which have higher strength and modulus than matrix. Natural fibers of lignosellulose derived from natural resources such as bamboo, sisal, kenaf, hemp, wood and others are the largest raw materials found on earth, especially Indonesia. The reinforcement of natural fibers in composite materials has the advantage of good mechanical properties and is cheaper compared to synthetic fibers, using natural bamboo fiber, it can be made green composite .The research stages are bamboo raw material taken from the village of Pebasiran Parung Panjang BogorJawa Barat type bamboo apus (giganchtoloa apus), aged 3-4 years. Bamboo dried with surrounding air for 2 weeks, then cut with a knife manually, hinggga shaped-sized fiber; thickness 0.6 - 0.8 mm and width 6 - 8 mm. The 5% NaOH soaked fiber, for 72 hours, is dried at room temperature. Reinforcement using plain weave and twill weave type. Composite is made by hand lay up process, with thickness of 2 mm. Testing test is made with standard ASTM D3039 / D3039M-08, Observation of fiber structure with optical microscope. From research data and the calculation is then obtained for plain woven type before alkali treatment yield strength is 15.60 ± 2.24 MPa, after alkali treatment yield strength is 18.80 ± 2.13 MPa. For this type of woven twill before alkali treatment yield strength is 24.48 ± 3.92 MPa, after alkali treatment yield strength is 29.90 ± 2.27 MPa. For plain woven type before alkali treatment process the maximal tensile strength is 20.94 ± 3.69 MPa, after alkali treatment process the maximal tensile strength is 25.53 ± 3.94 MPa. For the type of woven twill before the alkali treatment the maximal tensile strength is 30.18 ± 7.26 MPa, after alkali treatment the maximal tensile strength is 35.15 ± 2.81 MPa.For plain weave type before alkali treatment strain is 2.29 ± 0.36% , after alkali treatment strain is 2.47 ± 0.25%. For this type of woven twill before alkali treatment strain is 2.27 ± 0.40%, after alkali treatment strain is 2.27 ± 0.40%.

Page 7 of 13 | Total Record : 128

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Steven Darmawan

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Steven Darmawan

Contact Email tm@untar.ac.id

Phone +62215672548

Journal Mail Official tm@untar.ac.id

Editorial Address Program Studi Teknik Mesin Universitas Tarumanagara Kampus 1, Gedung L lantai 5 Jl Let. Jend. S. Parman No. 1 Jakarta Barat 11440 Indonesia

Location Kota adm. jakarta barat, Dki jakarta INDONESIA

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Contact Name
Steven Darmawan

Contact Email
tm@untar.ac.id

Phone
+62215672548

Journal Mail Official
tm@untar.ac.id

Editorial Address
Program Studi Teknik Mesin Universitas Tarumanagara Kampus 1, Gedung L lantai 5 Jl Let. Jend. S. Parman No. 1 Jakarta Barat 11440 Indonesia

Location
Kota adm. jakarta barat,

Dki jakarta

INDONESIA