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Jurnal Teknik Mesin Indonesia

jtmi
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Published by Badan Kerja Sama Teknik Mesin

ISSN : 1907350X EISSN : 25977563 DOI : -

Aerospace Engineering Automotive Engineering Control & Systems Engineering Industrial & Manufacturing Engineering Mechanical Engineering

Jurnal Teknik Mesin Indonesia “JTMI” " adalah jurnal ilmiah sains dan teknologi yang diterbitkan oleh Badan Kerjasama Teknik Mesin Indonesia. JTMI meliputi bidang konversi energi, material, desain mekanikal, manufaktur dan otomasi

Arjuna Subject : Teknik (semua kategori) - Teknik Mesin

Articles 291 Documents

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Studi eksperimental pemantauan kondisi dan penilaian analisa kinematik pengereman mobil Muhammad Sabri; Ardhian Fauza
Jurnal Teknik Mesin Indonesia Vol 12 No 1 (2017): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Braking is an activity that aims to stop, handle and control the vehicle through the wheels. This study conducted experimentaly on four-wheeled vehicle brakes. The purpose is to find the relationship between the main parameters of the force, distance and time on the braking process. The results showed that the force parameters were inversely proportional to the distance and braking time. It will be an indicator of the brake performance to control vehicle base on road condition.

Rancang-bangun prototipe mesin CNC laser engraving dua sumbu menggunakan diode laser M Munadi; Aulia Syukri; Joga Dharma Setiawan; Mochammad Ariyanto
Jurnal Teknik Mesin Indonesia Vol 13 No 1 (2018): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

The development of industrial technology can help the manufacturing industry for producing quality products. One tool that can help produce such quality products is CNC machines. As we know that the price of CNC machines is not cheap. Therefore, in this article, the researchers suggest how to design a prototype CNC laser engraving machine for the acrylic workpiece. The machine is designed as cheaply as possible but provide great benefits. The machine frame is designed using aluminum extrusion, the laser uses a laser diode type, the actuators of axis uses the stepper motor, and the control software uses a USB CNC controller. The dimension of workpiece that can be machined is 600 mm x 300 mm x 2 mm. The optimization of the stepper motor movement system is chosen 1/8 micro stepping after testing full-step method, half-step, 1/8 micro stepping, and 1/16 micro stepping. Using a 2.5 watt diode laser module, the radiant heat received by the acrylic workpiece during the engraving process is 558.8 x 10-5 cal/sec.

Analisis pengaruh perbedaan koefisien gesekan statis dan kinetis terhadap gerakan stick-slip menggunakan bahan viskoelastis Zahrul Fuadi
Jurnal Teknik Mesin Indonesia Vol 11 No 1 (2016): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Stick-slip motion in a mechanical system is undesirable because it hasnegative effects on the performances such as positioning errors and excessive wear. Stick-slip motion is caused by various parameters such as the difference between static and kinetic coefficient of friction, âs-âk. In this study, the effect of the difference between static and kinetic coefficient of friction, âs-âk, on stick-slip occurrence is numerically simulated and experimentally tested using a mass-slider system. The objective is to find out the effect of âs-âk parameter on the stick-slip propensity, qualitatively, using viskoelastic material. The results indicated that the amplitude of the stick- slip motion increased significantly with the increased value of âs-âkparameter.

Analisa Pengerjaan Tirus terhadap Permukaan Benda Uji Bahan S45C Dari Variasi Putaran dan Sudut Potong Mesin Bubut Krisbow KW 15-604 Sobar Ihsan; Budi Hartadi; Verriyanto .
Jurnal Teknik Mesin Indonesia Vol 11 No 2 (2016): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Tapered turning advantages various forms of objects with different angles of tape according to the production process. In the lathe machine, tapered turning can be done in three ways: sliding the top, headlights loose and taper attachment (taper attachment). The goal to be achieved in this study is to know the difference in the influence of variation of rotational speed Krisbow KW15-604 lathe against the smoothness of the surface of the workpiece resulting from the thinning of the material, Knowing the difference of the effect of cutting chisel angle variation to the smoothness of the surface of the workpiece resulting from the tapered turning on the material and knowing the interaction between the variation of Krisbow KW15-604 turning speed and angle cutting the chisel to the smoothness of the surface of the workpiece resulting from a tapered lathe on the material S 45C C = 47.4%, Si = 14.2%, Mn = 1.585%, Cr = 13.5%. The results of data analysis showed that there is a very significant influence between the variation of turning speed of the lathe and the variation of cutting chisel angle to the surface of the tinfoiled working object on S45C material. This can provide an overview of the metal and machinery industry in improving the quality of its products at the level of the surface in accordance with the wishes of consumers and the use of tapered products as for binding sealing on the engine of general.

Analisis sifat kuat tarik dan tekan kayu malapoga yang di rendam dengan air kondensasi Faisal Sukardi; Awal Syahrani; Anjar Asmara
Jurnal Teknik Mesin Indonesia Vol 13 No 1 (2018): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Malapoga wood is one of the endemic wood that grows in tropical regions like in Central Sulawesi Province. The purpose of this research is to find out tensile strength and press malapoga wood which is soaked with condensation water. The result of tensile strength test and the compressive strength of malapoga wood with the variation of immersion happened the increase of tensile strength and compressive strength along with the duration of immersion. The longer the immersion time the value of tensile strength and compressive strength increases. The highest value of tensile strength and compressive strength is on soaking for 10 weeks with a tensile strength value of 59,520 MPa and its compressive strength is 29,775 MPa. While the value of tensile strength and the lowest pressure is on the specimen without immersion (raw material) with a tensile strength of 56.040 MPa and a compressive strength of 24.985MPa. Increased tensile strength of 5.84% and an increase in compressive strength of 16.08% of raw material.

Analisa thermogravimetry pada pirolisis limbah pertanian Yulius Widiardi Pratomo Wiyoto; Eko Prasetyo Budiana; Dwi Aries Himawanto
Jurnal Teknik Mesin Indonesia Vol 11 No 1 (2016): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

The potential for biomass to supply much larger amounts of useful energy with reduced environmental impacts. Pyrolysis and other thermochemical conversion processes offer an important opportunity for utilization of biomass and waste. Pyrolysis of biomass can be described as the direct thermal decomposition of the material in the absence of oxygen to obtain an array of solid (char), liquid (tar) and gas products. Pyrolysis agricultural waste are produced tar, char and organic component. The thermal behaviour of selected biomass as rice straw, cassava peel, rice husk, saw dust and corncob was investigated using a thermogravimetric analyzer (TGA). Thermogravimetry has proved to be a useful tool in elucidating the decomposition of various biomass material. In thermogravimetric analyzer have RS Key and Adam Utility to convert data from TGA to computer. Sampel weight used 20 gram with heating rate 15 oC/min, maximal temperature 600 oC, holding time 10 minute and irrigated with 100 ml/min gas nitrogen. Result in this research indicates that drying process occur loss weight agricultural residu consecutive 5,35 %, 9,28 %, 12,91 %, 7,83 % and 7,82% and volatile matter in rice straw: 53,16 %, cassava peel: 60,28 %, rice husk: 48,24 %, saw dust: 64,32 % and corncob: 66,71 %.

Pembuatan minyak plastik dengan proses pirolisis Chalilullah Rangkuti; Tono Sukarnoto; Muhammad Rijani
Jurnal Teknik Mesin Indonesia Vol 14 No 1 (2019): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Especially at this time in big cities like jakarta is certainly a lot of society for various commodities every day .Similarly , the amount of waste generated every day reaches Â± 6000 tons which is dumped into bantar gebang tpu , and among of the waste 13 % -14 % is plastic type , not to mention not picked up by scavengers .It is better to use this waste to be a useful compared to the habits of people who as often as burn garbage .Burning waste will make water pollution especially if plastic waste .In this study made fuel oil sourced from plastic using gasification and distillation method that will convert gas from plastic into oil .From the results of this study found that the resulting plastic oil is close to the an element of of diesel oil .The amount of oil produced from each kg of plastic raw material produced 570 ml of plastic oil .This oil is close to the type of diesel oil

Rancang bangun sistem rem anti-lock brake system (abs) dengan penambahan komponen vibrator solenoid zakaria .; Wibowo .; Wibawa Endra Juwana
Jurnal Teknik Mesin Indonesia Vol 11 No 2 (2016): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

This study aims to analyze the vibration of the braking system equipped by solenoid vibrator component arranged with a control system to produce an ABS effect. Data collection is done by using slam stick. The results showed that the frequency domain signal with the addition of the solenoid vibrator component had peaks at 10 Hz frequency, while the frequency domain signal during braking without the addition of the solenoid vibrator component there were no peaks at 10 Hz frequency. From the data, the ABS braking system works in accordance with the ABS braking system that provides 10 Hz signal.

Sifat mekanik pada komposit lamina menggunakan matriks kayu mahoni dan reinforcement bambu Sofyan Djamil; Sobron Lubis; Calvin Chardly Pospos
Jurnal Teknik Mesin Indonesia Vol 12 No 2 (2017): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Composite is a combination of two or more materials which creates new property. Composite with basic nature materials is the famous thing now, because hopefully the results of this material composite will strong like iron materials. The method in this research use matrix mahoni wood and woven bamboo for the reinforcement. The research strart with plain woven bamboo and basket woven bomboo cut to size 200mm x 20mm. The next procces bamboo woven is glued with epoxy to fuse macroscopically with wood by hand lay-up. Then this composite materials will be tensile and flexural tested to know the occurred strength. Testing process is done by two methods : tensile test which refers to ASTM 3039 and flexural test which refers to ASTM 7264. Based on tensile test, maximum tensile strength obtained from 5 specimens for Plain Composite specimen about 43,18ð‘ð‘šð‘š2â„, and Basket Composite about 45,65ð‘ð‘šð‘š2â„. Meanwhile, based on flexural test obtained from 3 specimens for Plain Composite woven results in maximum stress about 68,35ð‘ð‘šð‘š2â„ and 82,27ð‘ð‘šð‘š2â„ for basket woven. Results obtained from optical microscope observation shows that fiber from fracture of composite plain woven and basket woven have brittle properties.

Pengaruh bahan kampas rem terhadap respon getaran pada sistem rem cakram Muhammad Mushlih Elhafid; Didik Djoko Susilo; Purwadi Joko Widodo
Jurnal Teknik Mesin Indonesia Vol 12 No 1 (2017): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

This study aims to determine the effect of brake pads material to the vibration response of disc brake system on many variety of braking conditions. The variations of brake pads material on this research such as metallic, non-asbes and ceramic. The variations of braking operation such as speed of disc rotation and braking pressure. Each brake pads material tested by variation of disc rotation 425, 637, 850, 1062 rpm and pressure variation 0,5 bar, 1 bar, 1,5 bar. Furthermore, the dynamic characteristics of brake pad had been tested by using the method of Modal Analysis Experiment. The results showed that the type of brake pad materials, disc rotation and braking pressure affect to vibration response of disc brake system. Increasing speed of disc rotation and braking pressure will increase the excitation force causing value amplitude of vibration in the braking system increases. Usage of brake pad ceramic also showed the lowest amplitude of vibration for all variations of disc rotation and braking pressure. Because the ceramic brake pad have the lowest natural frequency, then the value of the damping ratio is high, so that decreasing amplitude of vibration that occurs in the braking system.

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