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Mirza Yusuf
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Redaksi Quantum Teknika, Gedung D Lantai Dasar Kampus Terpadu Universitas Muhammadiyah Yogyakarta, Jl. Brawijaya, Tamantirto, Kasihan, Bantul, DI Yogyakarta, 55183
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Quantum Teknika
Published by Universitas Muhammadiyah Yogyakarta
ISSN : -     EISSN : 27211932     DOI : 10.18196
Core Subject : Engineering,
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Quantum Teknika : Jurnal Teknik Mesin Terapan or Quantum Teknika is a peer-reviewed journal published by Universitas Muhammadiyah Yogyakarta. Quantum Teknika journal publishes twice a year in April and October. Mechanical engineering is a branch of engineering focusing on mechanical engineering research. Despite of that, the development of the mechanical engineering does not solely encompass machinery science but also other machine-related field such as the automotive science which is composed of energy conversion, design and the forming materials. Quantum Teknika journal accommodates these fields in order to spark various innovations in Indonesia. In the journal Quantum Teknika, accommodate these fields in this period, the year of innovation began in Indonesia. - Automotive Research - Research in The Field of Energy Conversion - Materials Engineering - Design and Manufacture
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 108 Documents
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Risk Assessment Kesehatan dan Keselamatan Kerja (K3) pada Pekerjaan Bongkar Menggunakan Metode Hazard Identification, Risk Assessment, & Risk Control pada Pelabuhan Ciwandan di Banten Susiarni Magdalena; Harri Mochamad Mansur; Dwi Endah Kurniasari; Jaja Miharja
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 4, No 1 (2022): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v4i1.15882

Abstract

Unloading work at the port has a high risk. Thus, Occupational Health and Safety (K3) through risk assessment must always be considered so that it meets K3 standards so that the risk of work accidents can be reduced. This study aims to conduct a K3 risk assessment on unloading work using the HIRARC (hazard identification risk assessment control) method at the Ciwandan Port in Banten. This exploration is an assessment that concentrates on using a subjective methodology with the stages of a basic review, problem planning, and examination objectives, sharing information, managing HIRARC data, investigating the report, and making conclusions. The consequence of this study shows that the risk rating that can be identified is at least 2 Low, 7 High, and 8 Emergency from the aspect of working environment conditions, activities, and mental conditions of Ciwanden Banten Port workers. So it can be concluded that there are aspects of K3 that have a high risk and require higher attention. Therefore, further research is needed regarding risk control that can be provided based on a risk assessment from the word related to the Health and Safety (K3) technique HIRARC (Hazard Identification, Risk Assessment, and Risk Control) at the Port of Ciwandan in Banten.
Analisis Pengujian Tarik dan Sebaran unsur pada Pengelasan Aluminium – Mild Steel menggunakan Metode Cold Metal Bayu Prabandono; Agnes Putri Kartika Santosa; Devinta Putri Ardani; Agus Kurniawan; Mirza Yusuf
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 4, No 1 (2022): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v4i1.16092

Abstract

The technology that has been developed in recent years is the production of fusion welded plates between two different materials, for example, steel with other materials such as aluminum. Combining the two materials, aluminum and mild steel, will undoubtedly produce a material connection with good properties, for example, in a vehicle car frame. However, these two materials have different melting points, mild steel has a high melting point, and aluminum has a low melting point in the inner layer. This research aims to determine the welding results and the microstructure between aluminum plates and mild steel. The Cold Metal Transfer (CMT) welding process provides a potential method for joining dissimilar metals. In this study, various 4 mm thick aluminum alloys (Al 1100) were joined to 4 mm thick mild steel (SPHC) by CMT welding technology. It was concluded that combining aluminum alloys with mild steel using the cold metal transfer method was feasible. The optimum process variable for welding aluminum-mild steel dimensions 250 mm × 100 mm × 4 mm can be obtained with ER70S-6 wire, ArCO2 shielding gas, wire feed speed 13 m/min, and welding speed e8 mm/s.The tensile strength of the joint first increases and then decreases as the welding current increases, the highest tensile strength can reach 73.35 MPa.
Perancangan Polybag Knockdown Dengan Material Polyethylene Terephthalate (PET) Agus Kurniawan; Bayu Prabandono; Dicky Bondan Wirawan; Santoso Kalim
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 4, No 1 (2022): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v4i1.16093

Abstract

During the Covid-19 pandemic, the need for food was one of the problems faced by the government. The government urges the public to do independent food planting using polybag planting media as one solution to overcome this problem. However, single-use polybags can increase the amount of plastic waste, which is still unresolved. This study aims to design the value of the knockdown polybag product and gain strength from the knockdown product design. Knockdown Polybag product design using the VDI 2222 method (Verein Deutscher Ingenieure / German Engineers Association). This method helps facilitate designing products and learning for beginners and can optimize the productivity of designers to find the most optimal and efficient problems. After determining the method used, the next step is planning, conceptualizing, designing, and completing knockdown polybag products. The result of the design concept from the VDI 2222 method is an alternative overall function (AFK) 2 which has a square cross-section, is cones-shaped to facilitate plant transfer applications on agricultural land, and uses a hook locking model, which is flexible, and easy to assemble and disassemble. The product design of knockdown polybags has been obtained to meet the needs according to those on the market. Therefore, knockdown polybags can be produced and used to make planting more accessible and reduce costs for farmers.
Mesin Ayak Dua Saluran Dilengkapi Pengarah untuk Produk Beras Jagung Yohanes B Yokasing; Amiruddin Abdullah; Stanislaus Tamelab
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 4, No 1 (2022): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v4i1.14360

Abstract

A sieve machine is used to separate groups of granules based on size. Most separation sieves on two groups of sifted/filtered grains move immediately, but the unfiltered grains are removed by the operator turning the sieve sideways or lifting the unfiltered material. In addition, the sifted material is usually poured directly on the sieve wire. This slows the sifting process, and the buildup can damage the sieve. On the other hand, sieve materials, such as corn rice products, require two sizes of sieve wire holes. Design, make, and study the function, "The Sieve Machine's two-channel Equipped with Directions for Rice Corn". The specification of the sieve machine is as follows; it has two sifting channels, the sieve filter can be replaced, a swing arm drives the filter, the dynamo operates on 3/4 hp, rotation 1400 rpm, the capacity for one stage is ± 44.8 kg/hour, the capacity for corn rice ± 22 kg/hour (it's time to change the sieve). The study of engine performance on several variables showed that the smaller the lightening angle, the capacity increases; it is inversely proportional to the length of the spring and rotation. At angle 50 sieve capacity is 23.3 kg/hour, with the length of the spring being 90.5 mm, and on the size of the spring becoming 100.5 mm, the sieva capacity of 24.6 kg/hour. For angle 150, the capacity is reduced by 20.4 kg/hour. At rotation 230 rpm, 50 angles, decreased capacity, only 20.3 kg/hour, spring length 90.5 mm
Gabungan Quenching-Variasi Tekanan Shot peening Terhadap Kekerasan Permukaan dan Struktur Mikro Permukaan Baja S45C Bambang Hari Priyambodo; Margono Margono; Rizqi Ilmal Yaqin
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 4, No 1 (2022): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v4i1.16170

Abstract

The combination of Quenching and Shot peening (SP) heat treatment is rarely carried out, especially the use of this treatment can improve the mechanical properties of medium carbon steel (S45C). This study aims to analyze the microstructure and hardness of S45C steel with the combined effect of Quenching heat treatment with shot peening with variations in compressor air pressure. Commercial S45C steel is quenched with a heating temperature of 910oC and held for 15 minutes. In comparison, the SP process is carried out after the quenching process with variations in air pressure, namely 4, 5, 6, and 7 bar. Analysis of the combined results of Quenching and SP processes using hardness and microstructure. The investigation analysis results obtained specimens with the highest surface hardness in the quenching and SP treatment of 899.44 HV. The impact of SP on the surface up to a distance of 120 m from the surface. The highest hardness was in the Quenching and SP treatment with a pressure of 7 bar. The results of this study are used as parameter contributions in the area of surface treatment and heat treatment of carbon steel to be developed in the automotive industry.
Pengaruh Tingkat Kebisingan Mesin Kapal terhadap Fungsi Pendengaran dan Stress Kerja pada Teknisi Mesin Kapal Heru Widada; Alvian Demaz Peramutya; Anicitus Agung Nugroho; Hari Sunanto
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 4, No 1 (2022): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v4i1.15313

Abstract

This study aimed to determine the effect of ship engine noise level on hearing function and work stress on ship engine technicians. The data collection process was carried out within 30 days, from 15 February 2021 to 15 March 2021. This study took a collation at the Merak port of Banten. The method used is a survey using research subjects, ship engine technicians, and the object of research is noise. This study uses primary data in engine maintenance design and the intensity of noise distribution on the ship's engine. The research sample was 2 units of machines with engine criteria aged 1 year and 6 years. The equipment used in this study is a sound level meter, an object to measure the noise that has been calibrated. This research uses the descriptive analysis method. The results showed that the noise value at full rpm was 70.3-104 dB (A) and 59.2-77.5 dB (A) when in a stationary state. Referring to the data, the age of the machine does not affect the noise level. As a preventive measure against something that can become an obstacle regarding noise on board, it is necessary to use ear protection devices such as ear protection devices called earplugs. Noise can be minimized by regularly lubricating the engine and installing silencers to prevent sound from spreading to other rooms so that it can reduce the risk due to noise that causes stress, headaches, high blood pressure and other diseases
Analisis Kekuatan Bending Komposit Lamina Serat Ijuk Anyam dan Serat Ijuk Acak bermatriks Polyester Fatkhurrohman Fatkhurrohman; Ismail Ismail; Ferriawan Yudhanto
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 4, No 1 (2022): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v4i1.16593

Abstract

The current automotive industry uses composite materials as an alternative material to replace metal or plastic, due to the advantages of composite materials that have biodegradable properties and support environmental sustainability. Composite materials can be used as car body protectors, as a protector composite materials must withstand compressive loads. Referring to this, the research will be carried out through flexural testing. Study aim is to analyze variations of fiber volume fraction effect to the flexural strength. Method of making composite materials using hand layup then press mold, variations in fiber volume fraction 25%, 30%, 35%, 40%, and 45%. Flexural testing is carried out according to ASTM D-790. The morphology analysis was also carried out on the fractures of result of flexural test. Flexural testing results show that the highest flexural strength is founded in the fiber volume fraction 50% and the lowest flexural strength is founded in the fiber volume fraction 25%, 724.4 MPa and 435.8 MPa, respectively. A suitable composition in the fiber volume fraction of 40% can produce an optimal bond between the matrix and the fiber. Observing the morphology of the fracture and the cross-section of the fracture flexural testing results, it was found that there were fiber fractures with the characteristics of fiber pullout and delamination in each test specimen.
Pengaruh Pengetahuan, Pengawasan dan Kelengkapan Sarana Pengelolaan Sampah Awak Kapal terhadap Perilaku Pencegahan Pencemaran Laut di Pelabuhan Nursyamsu Nursyamsu; Ade Mardani Putra; Astri Kustina Dewi; Henni Sutryani
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 4, No 1 (2022): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v4i1.15696

Abstract

In Indonesia, marine pollution is a common problem. Ship personnel operating in ports often contribute to marine pollution. This study aimed to determine the impact of crew behavior in relation to the prevention of marine pollution on their knowledge, supervision, and completeness of their waste management facilities. The methodology of this research is quantitative. With the help of SmartPLS version 3.0, the analysis used in this work takes a structural approach to the Equation Model. A total of fifty crew members who participated in the study were randomly selected from the pool of participants. In addition, participants in this study were randomly selected by distributing questionnaires to the crew at Merak Harbor. According to research findings, the behavior of seafarers in preventing marine pollution in ports is influenced by their knowledge, supervision, and quality of infrastructure.
Keandalan Komponen Nose Wheel Assy pada Pesawat Cessna Sri Mulyani; Istyawan Priyahapsara
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 4, No 2 (2023): April
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v4i2.16357

Abstract

Maintenance is taken to maintain the reliability of the components that support overall nurse performance. One of them is the landing gear which functions for all aircraft movements on the ground including taking off, landing, taxing and parking, and holding the aircraft's load while on land. Nose wheel assy is provided to hold the nose of the aircraft and maneuver while on the ground. Based on information obtained from the engineering department as well as looking at the maintenance logbook on the ATR 72-500 aircraft there was a problem with the nose wheel assy. Where these problems can result in the movement of the aircraft will be problematic. The method used is the Weibull distribution analysis method, the main objective is to determine the failure rate and the reliability of these components as well as to determine the characteristics of the failure modes caused. The parameters used in this distribution are the shape parameter (β) and the scale parameter (h). From the calculation analysis results, it can be seen that the nose wheel assy component based on time failure will function until it fails at the age of 585 hours 38 minutes and β is 3.513864. Following the provisions that apply to values β 1,the type of failure that occurs is a type of failure to wear out. While based on the cycle will function until experiencing failure at the age of 398 hours 13 minutes and β is 1.258549 Under the provisions that apply to values β 1, type failure that occurs is a type of wear out. This type of failure has the property of increasing the failure rate with increasing use, therefore for nose wheel, assy components more effective preventive maintenance is applied.This type of failure has the property of increasing the failure rate with increasing use, therefore for landing gear, assy components more effective preventive maintenance is applied.
Performance Development Yamaha Jupiter Z1 Engine on Throtle Body, Muffler and Setting CO Mirza Yusuf; Putri Rachmawati; Rizky Setiawan
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 4, No 2 (2023): April
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v4i2.17044

Abstract

Yamaha is one of the manufacturers that is concerned about motorsport, this is shown from the various production lines developed. This research focused on Jupiter Z1 Done by changing the manufacturer's standard work system, to improve its performance. This is because the vehicle when in standard conditions is a fuel and power efficient setting, the modifications made are for the stage towards the Roadrace motorcycle racing regulations. There are several regulations covering Mp1 to Mp5 and for mp5 regulations including changes to components that affect to spur motor power, changed components Analysis of Changes in Throttle Body Diameter, Mufler, CO Settings on Yamaha Jupiter Z1. to get maximum exhaust exhaust gas disposal, due to changes in several components that were changed and added, then from these problems made changes to standard data to comply with the Mp 5 roadrace racing regulations. component and data changes include Reamer Throttle body, aftermarket racing mufler replacement and CO (carbon monoxide) data settings. The result is an increase in Horsepower and Torque of 24.3% based on the Dynotest.

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