cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Betti Ses Eka Polonia
Contact Email
betti.polonia@gmail.com
Phone
+6281254772992
Journal Mail Official
injection@politap.ac.id
Editorial Address
Jl. Rangga Sentap, Dalong, Sukaharja, Delta Pawan, Ketapang, Kalimantan Barat, 78813
Location
Kab. ketapang,
Kalimantan barat
INDONESIA
INJECTION: Indonesian Journal of Vocational Mechanical Engineering
Published by Politeknik Negeri Ketapang
ISSN : -     EISSN : 27754995     DOI : https://doi.org/10.58466/injection.v1i2.117
Core Subject : Economy, Science, Engineering,
Control & Systems Engineering Economics, Econometrics & Finance Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Indonesian Journal Of Mechanical Engineering Vocational (INJECTION) adalah jurnal ilmiah yang dikelola secara profesional dan diterbitkan oleh Jurusan Perawatan dan Perbaikan Mesin, Politeknik Negeri Ketapang. Jurnal INJECTION sebagai media kajian ilmiah hasil penelitian, pemikiran dan kajian analisis-kritis mengenai penelitian yang berfokus pada ilmu teknik mesin dan inovasi teknologi atau rekayasa dengan upaya serta semangat untuk menyebarluaskan hasil dari penelitian-penelitian yang bermanfaat bagi masyarakat. Selain itu, juga sebagai bahan kajian dan referensi akademisi dalam bidang ilmu teknik mesin dan inovasi teknologi.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 79 Documents
 4   5   6   7   8 
RANCANG BANGUN ALAT PELEPAS SEAL POWER STEERING PADA MOBIL TOYOTA HILUX epriyandi, epriyandi
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 3 No 2 (2023)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/injection.v3i2.1497

Abstract

In general, most workshops still use manual methods to remove the power steering seal, so the processing time for removing the power steering seal will take around 1 hour. So that the work of removing the power steering seal is faster and more precise so that it is more effective and efficient, a power steering seal removal tool is needed to make the job easier. Based on the problems above, it is deemed necessary to make tools to assist in removing the power steering seal on Toyota Hilux cars. Making the power steering seal removal tool requires selecting the right materials, so that this tool is able to work optimally, and the operation is very simple so that everyone can use this tool. This tool is made using ST37 steel with a strength of 37 Kg/mm2. St37 iron is easy to get and the price is relatively cheap. This power steering seal removal tool consists of various components that support each other so that it can work properly. Some components of the power steering seal removal tool are threads, nuts and iron bars. Based on the test results after the manufacturing process is carried out, using this seal removal tool only takes 2 minutes, whereas if removing the seal using the manual method it will take 1 hour. The seal has a high potential for damage if the seal is removed using a manual method. But if you use this seal removal tool, the seal will not be damaged.
PENGARUH VARIASI AIR SEBAGAI MEDIA PENDINGIN TERHADAP KEKERASAN HASIL PENGELASAN PADA BAJA ST- 37 Putra, Bagoes Handika; Rahmadi, Hairian; Nurmayasari, Dewi; Helanianto, Helanianto
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 3 No 2 (2023)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/injection.v3i2.1502

Abstract

This research will provide testing of low carbon steel, namely ST-37 Steel, through a welding process using cooling media with variations in water on the hardness of the steel resulting from welding. The important point in this research is to be able to determine the effect of the cooling medium on the hardness of the welded steel in order to obtain maximum hardness and obtain good weld hardness. Welding is carried out using the shielded metal ac welding (SMAW) welding method, so testing is required on test objects resulting from shielded metal ac welding (SMAW). The research method that the researcher took was an experimental research method, namely research to determine the consequences of the treatment given to the thing being researched by carrying out Rockwell Hardness (HR) testing. From the tests, differences were found in each specimen using 4 different water samples. The 4 water samples used were sea water, salt water, water with a pH of 6.1, and water with a pH of 7.4. Variations in cooling media influence the test results, namely at 10 specimen points tested from 4 cooling media samples, it was found that the specimen with the highest level of hardness was the specimen using a water sample with a pH of 6.1, namely with an average value of 49.3 (HR), and the specimen with the lowest level of hardness was the specimen with the salt water sample, with an average value of 46.95 (HR).
RANCANG BANGUN PERAHU TANPA AWAK TENAGA SURYA (PETATES) Auto Feeder Prihantoro, Topan; Asha, Muhammad Toasin; Pratama, Wahyu Wira; Daryono, Daryono; Setiawan, Agus; Sofiana, Evi; Ali, Muhammad; Riyanti, Rika; Reski, Indah Anjar
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 4 No 1 (2024)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/injection.v4i1.1572

Abstract

Feeding fish in pond-based aquaculture involves the hand distribution of food by individuals around the pond's perimeter. Farmers utilize boats to achieve extensive food delivery. Technological advancements have facilitated the creation of self-feeder or dement-feeder statistical techniques. This device functions autonomously to provide feed at regular intervals and has a predetermined coverage area at its designated position on the periphery of ponds. Due to its peripheral location, the technology deployment system has limited capacity to distribute feed across the entire pond area, making it less effective for use in big ponds. Hence, it is imperative to develop a solar-powered unmanned boat (Petates) equipped with an Auto Feeder system to regulate the feeding process in shrimp and fish farming. This study aims to develop a solar-powered unmanned boat design for fish and shrimp farming that can efficiently distribute feed across the pond. Additionally, the research aims to assess the impact of feeding machines on the conversion of feed by fish and shrimp. The research results show that the maximum floating weight of the boat is 48.7 kg using two solar-powered electromotor-driven buoys. The boat has a maximum speed acceleration of 2.4 m/s, achieved through a well-balanced and efficient bow acceleration. Experiments were conducted using two distinct feed types: type 781-2 with a diameter ranging from 2.3 to 3 mm, and type 781-3 with a diameter ranging from 3.2 to 4 mm. The throwing distance for the feed is between 8 and 10 meters, and between 7 and 8 meters. The feed spreading rate for each minute is 950 grams and 1,080 grams, with a feed capacity of 7 kilograms and 6 kilograms respectively.
ALAT PEMOTONG PLAT SISTEM GESER Ismael Marjuki; Polonia, Betti Ses Eka; Rahmadi, Hairian
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 4 No 1 (2024)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/injection.v4i1.1671

Abstract

The process of cutting steel plates is often found in small and large industries. Cutting is also a process of separating and reducing one solid object into two or more that are directed, modifying, forming, and removing unnecessary parts using cutting tools. Some common problems when using a hand grinder are user safety from sparks and dust. In addition, physical injury factors due to misuse and broken discs or grinding wheels can also occur during operation. Based on this, the author designed a tool that can cut plates safely and neatly. This tool's advantage is that it is safer and more efficient because it uses a sliding system. A plate-cutting tool with a sliding system has dimensions of 126.5 cm frame length, 50 cm width, and 20 cm frame height. Process the plate-cutting tool frame using a hollow iron measuring 40x40 mm and a grinding machine with a speed of 12,000 rpm.
OPTIMALISASI SISTEM WAKTU SERVICE ENGINE DAN P2H PADA ALAT BERAT OHT CAT 777 DI PT. SAPTAINDRA SEJATI SITE ADMO KALIMANTAN SELATAN Darsini, Darsini; Muklis Nurcholic, Agung
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 3 No 2 (2023)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/injection.v3i2.1774

Abstract

PT. Saptaindra Sejati is a coal contractor that has a fleet of heavy equipment Dump trucks OHT Cat 777, used to transport coal mining materials from the mining location to the precessing location. In order to support operasional activities, a good fleet of heavy equipmeny id needed equipment id needed so that the coal production target is achieved properly, a maintenance process is needed, because the condition of tne Dump Truck OHT Cat 777 still often experiences damage. With the aim of optimizing the engine service time system and P2H on the OHT Cat 777 heavy equipment. The methods used are PERT and CPM. The results of the analysis with the PERT method are 173,3 minutes, while using the CPM method 170 minutes with the critical path A-B-C-D-E-F-G-H-I-K-L-M-N-O-P-Q-R. In the p2H activity, the engine area uses the PERT method 72,99 minutes while with the CPM method 72 minutes. The critical path generated from both methods has similarities, namely A-H-I-K-G-J-L. The CPM method is faster in terms of work duration and better in its application. The influencing factor is the sequence of work that is adjusted to the network planning so that workers and companies can know which activities need to be prioritized so that there are no delays in completing service engine and P2H activities
EVALUASI SISTEM MANAJEMEN K3 DAN MAINTENANCE MENGGUNAKAN METODE FAULT TREE ANALYSIS (FTA) Darsini, Darsini; Haryono, Sri
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 3 No 2 (2023)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/injection.v3i2.1769

Abstract

This study fokuces on three main problems that often occur in V-Bunkers Tanker PTE LTD, namely Main Engine Overhead, Auxiliary Engine Fuel Pump Failuer, and Clogged or dirty Lube Oil Filter. The aim is to provide an occupational safety and health (K3) management system and miimoze the risk of damage to the machine through the application of the Foult Tree Analysis (FA) method. Data were collected through interviews with maintenance operators and direct observation of the ship's operational process. The analysis results showed that Main Engine Overheat was caused by cooling system failure, fuel contamination, and lack of routine maintenance. Auxiliary Engine Fuel Pump Failure occurred due to poor fuel quality, unstable fuel pressure, and component wear. Meanwhile, Clogged or Dirty Lubricating Oil Filters were caused by the use of low-quality lubricants and lack of routine inspections. The impacts of these damages include decreased ship operational efficiency, increased risk of workplace accidents, and impaired crew safety. The application of FTA helps identify the root cause of the damage and provides recommended solutions, such as preventive maintenance, regular replacement of spare parts, and safety training for crew.
MAINTENANCE ACTIVITY PLANNING FOR FUEL SYSTEM COMPONENTS ON KT-1B AIRCRAFT USING RELIABILITY METHODS Adiksa, Ekklesia Christian; Setiawan, Ferry; Wicaksono, Dhimas; Anhar, Muh
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 3 No 2 (2023)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/injection.v3i2.1776

Abstract

This research aims to prevent unscheduled maintenance by determining the optimal maintenance time to plan preventive maintenance on the fuel system of the KT-1B aircraft. Fuel System components include Engine Driven Pump, Fuel Control Unit. The methods used are Fault Tree Analysis (FTA), Failure Mode and Effect Analysis (FMEA), and Weibull Distribution. This method is to determine the factors causing failure, calculate the failure rate, and system reliability. Factors causing fuel system failure are influenced by age, damaged seals, vibration. The level of reliability of the Fuel System decreases with the length of use. Where the system will experience a critical period when it reaches operational time, namely engine driven pump = 1010 hours with a reliability value of 70%, fuel control unit = 1637 hours with a reliability value of 70.1%. After knowing the critical mass limit of the components, Preventive Maintenance planning will be carried out on the parts and components that cause failure, namely by cleaning the engine driven pump components and the fuel control unit by periodically checking the parts on the KT-1B aircraft.
ANALISIS EFISIENSI THERMAL TERHADAP ENGINE TURBOFAN PESAWAT BOEING 737-500 Sofyan, Edi; Alexandro Grandy, Yoseph; Setiawan, Ferry; Anhar, Muh
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 4 No 1 (2024)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/injection.v4i1.1777

Abstract

Thermal efficiency is a dimensionless measure that shows the incoming heat is the energy obtained from the energy source. The cooled output may be either heat or work, or it may be both. The CFM56-3 engine is a turbofan jet engine with large bypass capacity, dual rotor used with advanced axial flow technology designed for use on BOEING737 aircraft and all its variants. The purpose of this study is to determine the thermal efficiency of a turbofan engine, the causes of decreased performance of a turbofan engine and efforts to overcome it. This research is a qualitative and quantitative research using primary data and secondary data. Data collection techniques used are field studies, literature studies, as well as discussion and problem analysis. The field study in this research is to make direct observations of the processes that occur in the field. The results of this study can be concluded that the thermal efficiency of the Boeing 737-500 aircraft occurs the higher the difference between the incoming energy and outgoing energy through the compressor is 49.11% and the turbine is 64.01% the system produces the ideal thermal efficiency value of the Brayton cycle of 70 ,51% produced will be higher while the actual thermal efficiency of the Brayton cycle of 44.0% has decreased compared to the ideal thermal efficiency. The comparison of the ideal thermal efficiency of the Brayton cycle and the actual thermal efficiency of the Brayton cycle is 26.51%, meaning that efficiency can still be increased by as much as possible returning the component dimensions to their proper condition. The cause of the decreased performance of the turbofan engine is a change in dimensions due to frictional materials; wear and tear caused by continuous operation; as well as incorrect operating steps on the turbine engine and efforts to overcome them are periodic inspections of each turbofan engine components and using accurate measuring instruments
ANALISIS BEBAN KERJA MENTAL PADA STAFF OFFICER ADARO SERVICE SITE ADMO MENGGUNAKAN METODE NASA-TLX Darsini, Darsini; Wahyu Purnomo, Andi
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 4 No 1 (2024)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/injection.v4i1.1779

Abstract

Human Resources (HR) is a workforce, employees, who work in a company. Human resources in a company are one of the important aspects to increase the effectiveness and efficiency of a company. Staff Officer is one part of the company that has an important role in carrying out production activities. Adaro Service Company in the department plant has a Key Performent Indicator PA target of 92%, this target triggers increased fatigue for staff officers, and creates an effect of excessive mental workload, thus reducing productivity figures. This study aims to analyze the mental workload on staff officers, and find out what factors cause the mental workload of staff officers. The method used in this study is the NASA-TLX method. The results of this study indicate that the level of mental workload indicators for staff officers is in the high category. The highest indicator is the Frustration Level (TF) score of 24%, and factors that cause high mental workload are influenced by human factors and method factors

Page 8 of 8 | Total Record : 79

 4   5   6   7   8 

Filter by Year

2021 2024


Reset
Filter By Issues
All Issue Vol 4 No 1 (2024) Vol 3 No 1 (2023): Februari 2023 Vol 3 No 2 (2023) Vol 3 No 1 (2023) Vol 2 No 2 (2022): Agustus 2022 Vol 2 No 1 (2022): Februari 2022 Vol 2 No 2 (2022) Vol 2 No 1 (2022) Vol 1 No 2 (2021): Agustus 2021 Vol 1 No 1 (2021): Februari 2021 Vol 1 No 2 (2021) Vol 1 No 1 (2021) More Issue