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Jurnal Teknik Mesin, Industri, Elektro dan Informatika
Published by Politeknik Pratama Purwokerto
ISSN : 29638208     EISSN : 29637805     DOI : 10.55606
Core Subject : Science, Engineering,
Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering
JTMEI merupakan jurnal ilmiah berkala dengan ciri khas/identitas bidang Teknik (Mekanik, Elektrikal, Industri, Informatika, Sipil dan Sains). Tema makalah ini difokuskan pada aplikasi industri baru, kelautan dan pengembangan energi hijau yang berkelanjutan.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 277 Documents
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Dampak Covid-19 Terhadap Lulusan Sekolah Menengah Kejuruan Pada Bidang Teknik Pemesinan di Dunia Kerja Restu Fazar Febrianto; Elfan Arya Rakha; Rizky Adi Zuliansah; Risma Aprillia; Ahmad Solehudin; Rizal Zayis Firdaus; Rama Wijaya Abdul Rozak; Ariyano Ariyano
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 2 No. 2 (2023): Juni : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v2i2.1627

Abstract

This study aims to provide an overview of the suitability of machining engineering majors in the world of work. When the Covid-19 case is on the increase, especially in Indonesia, many graduates of vocational high schools have difficulty finding jobs according to the majors they are interested in, especially in the field of machining engineering expertise. This research method uses descriptive quantitative methods with field data obtained from the results of questionnaires distributed to vocational high school students in the field of machining engineering expertise so that 33 respondents can be analyzed. The results of the study show that there is suitability and incompatibility in finding work due to the impact of Covid-19, factors that can cause this such as students' lack of understanding of distance learning when affected by the Covid-19 outbreak and remote practicum which hinders the growth of students' competence that should be obtained to enter the world of work. In addition, the lack of information related to the world of work was also felt by students when the Covid-19 outbreak attacked Indonesia. Therefore, this research was conducted to find out how suitable graduates of vocational high schools are in finding jobs and in accordance with what they are interested in in their areas of expertise
Perancangan Aplikasi Enkripsi Deskripsi Mengunakan Metode Caesar Chiper Berbasis Web Mohammad Harun Alfirdaus; Muhlis Tahir; Nabilla Enno Dewanti; Riki Ardianto; Nela Nur Azurah; Nanang Firman Cahyono
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 2 No. 2 (2023): Juni : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v2i2.1628

Abstract

Cryptography is a solution or method of information security that is good for maintaining the confidentiality and security of information, and can improve information or information security in an era of very rapid development of information technology. The rapid development of this technology, many new implications and problems arise in the delivery and communication of information, this is because everyone has easy access to the media and this affects the security of information and messages on the media. Therefore, to protect messages, we can use Caesar encryption, which is relatively easy to implement in PHP. How to apply message security in this study by designing web-based applications using the PHP and HTML programming languages. Message protection uses the Caesar encryption algorithm by changing every character of the original message into ciphertext. Characters in plain text are replaced with keys that are determined based on the number of alphabetical orders of plain text. In this way, unauthorized parties cannot read these private messages and users can interact with private messages more freely.    
Perancangan Game Edukasi Matematika Menggunakan Construct 2 Untuk Kelas VII di SMP N 1 Lareh Sago Halaban Sisca Wendi Harisa; Riri Okra; Hari Antoni Musril; Sarwo Derta
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 2 No. 2 (2023): Juni : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v2i2.1637

Abstract

This research is based on the problems found based on the results of interviews with mathematics teachers and students at SMPN 1 Lareh Sago Halaban that the media used in the learning process only uses the blackboard with lecture and discussion methods, there is no technology-based learning media, especially educational games that are used by teachers to students related to mathematics lessons caused a lack of interest and activeness of students in mathematics subjects. Based on this, the solution given is to design a learning media. The purpose of this research is to produce learning media products in the form of educational games with the help of software Building 2 mathematics subjects at SMPN 1 Lareh Sago Halaban. The design of mathematics education games uses the construct 2 design application at SMPN 1 Lareh Sago Halaban with the Research and Development (R&D) research method using the MDLC (Multimedia Development Life Cycle) development model from Luther Sutopo the development model is explained in 6 stages, namely Concept, Design, Materials Collection, Assembly, Testing and Distribution. The product test used in the research is the validity test, practicality test, and effectiveness test. The product test results show that the educational games designed are valid, practical and effective. For the results of the validity test of three validators, the score was 0.88, the practical test by 3 practi- tators was 0.97, and the effectiveness test of twenty people was 0.92.
Penentuan Interval Perawatan Mesin Wood Pallet Secara Preventif Dengan Metode Modularity Design Dan Age Repalcement Pada PT Yale Woodpallet Indonesia Shesfi Nur Hidayah; Endang Pudji Widjajati
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 2 No. 2 (2023): Juni : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v2i2.1666

Abstract

In an effort to increase productivity to ensure smooth production processes, it is necessary to implement an appropriate maintenance system to reduce production machine downtime. The purpose of company maintenance is to keep production machines in good condition so that production operations can run efficiently and effectively. PT Yale Woodpallet Indonesia is a company in Indonesia that produces wooden pallets (wood pallet). This company often experiences problems with damage to machines due to suboptimal machine maintenance because the maintenance system is carried out to repair damaged components with new components resulting in downtime. Among these problems, this study aims to determine maintenance intervals to minimize maintenance costs by using modularity design and age replacement methods. Based on the analysis of the results obtained, it is known that the modularity design and age replacement methods can achieve optimal component replacement intervals for pallet machine components is 30,000 minutes, rotary screening components are 33,200 minutes and hopper components are 33,200 minutes. The total maintenance cost per year is Rp. 2,115,610,959, -. compared to the company's maintenance costs which have a value of Rp. 2,668,692,000, the maintenance system using the modularity design and age replacement method is more efficient by 1.27%.
Analisis Perencanaan Produksi Paving Dengan Menggunakan Metode Campbell Dudek Smith Dan Palmer Di CV. Daya Patra Sentosa Novia Dwi Susanti; Endang Pudji Widjajati
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 2 No. 2 (2023): Juni : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v2i2.1667

Abstract

CV. Daya Patra Sentosa is a company that produces paving. Of the several types of products available, T6 paving, T8 paving, and hexagon paving are the types of products with the most demand. CV. Daya Patra Sentosa has problems in production scheduling, namely there are frequent delays in product delivery because they do not yet have an optimal production scheduling system and still use FCFS rules. The purpose of this study is to provide alternative production scheduling suggestions in order to obtain optimal production processing time and prevent delays in product delivery. These problems are solved by the method of Campbell Dudek Smith and Palmer. These two methods are compared to find out the production process time and get the optimal choice of production time. The calculation results show that the application of the method applied by the company, namely FCFS is 12342.9 minutes, the Campbell Dudek Smith method is 11953.9 minutes, and the Palmer method is 12023 minutes. It can be seen that the Campbell-Dudek-Smith method provides a shorter time of 389 minutes (3.15%) to the company's schedule.
Sistem Backwash Pada Filtrasi Sistem Pengolahan Air Minum Menggunakan Motor Listrik Pompa Sentrifugal di Perusahaan Umum Daerah Air Minum Tirta Madani Kota Serang Shafa Yuniar Yasmin; Endi Permata
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 2 No. 2 (2023): Juni : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v2i2.1675

Abstract

The need for water consumption is currently very high, almost all human activities require water, therefore the process and production of water is very important to maintain health, the electric motor is the main driving tool needed in the process of cleaning water, therefore the motor is able to move the machine to clean the place water filter or water filter at the Tirta Madani Regional Drinking Water Company in Serang City to maintain water quality. The method used is qualitative by using observation techniques, interviews and literature studies. The filter backwash system is one of the ways to care and maintain the quality of drinking water. Backwashing requires an electric motor, a centrifugal pump and an air blower as its propulsion device.
Analisis Beban Kerja Fisik Dan Mental Bagian Produksi Dengan Menggunakan Metode Cardiovascular Load (CVL) Dan Bourdon Wiersma Di PT. Romi Violeta Sarah Aliyah Sabhirah; Rusindiyanto Rusindiyanto
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 2 No. 2 (2023): Juni : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v2i2.1676

Abstract

A manufacturing company engaged in the furniture industry, specializing in wood, rattan and glass products. Most of the production orders were related to table products, stands and chests, with a total of 15,224 orders for other products. Based on results of direct observation at PT. Romi Violeta from the production process department says that due to the limited working hours, especially as the production orders for tables, shelves, etc. increase every month, the physical and mental strain employees take to meet their production targets. I often complain about. For commodity products. The purpose of the research is to find cases of high physical and mental stress at manufacturing sites with high stress standards such as tables, shelves, and chests of drawers, and to provide suggestions for improving the reduction of physical and mental stress. . Based on an analysis of the results, the mean cardiovascular load (CVL) percentage was found to be 43.902%, indicating that the assessment needs improvement, and the Bourdon Vielsma test speed result was 12.593 seconds with a score of 7. , a body weight score (WS) of 11.5 is included in the adequate group (C). Accuracy is 3.26, score is 8, fair group (CB) weighted score (WS) is 12, constant is 8.185 seconds, score is 5.5, score is . 8 are in the suspicious (R) group.    
Sistem Motor Listrik 6 KV Condensate Extraction Pump di PT Indonesia Power PLTU Suralaya (PGU) Feri Febrian Syah; Endi Permata
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 2 No. 2 (2023): Juni : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v2i2.1687

Abstract

In a steam power plant, of course, it has a very important prime mover, namely an electric motor, but electric motors are used in a variety of functions, one of the main roles in this electric motor is as a condensate extraction pump in a steam power plant which functions to push materials for power plant production. Steam power, namely sea water, goes to the generator to become a power plant. The method used is qualitative by using observation techniques, interviews and literature studies. This condensate extraction pump (CEP) electric motor can be operated automatically and manually for routine maintenance and good inspection results.
Thermal Overload Relay (TOR) Sebagai Sistem Proteksi Motor Induksi 3 Fasa Pada Mesin Molding Biofuel Pelletizer Di PT. Sejin Lestari Furniture Tiya Puspita; Ilham Akbar Darmawan
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 2 No. 2 (2023): Juni : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v2i2.1773

Abstract

PT. Sejin Lestari Furniture is a company engaged in the production of furniture such as doors, tables, chairs, cabinets, bookcases and other interior equipment. As one of the companies that have succeeded in producing finished goods in large quantities, PT. Sejin Lestari Furniture relies on the help of an electric motor at every stage of its production, including one of the wood pellet production machines, namely the biofuel pelletizer molding machine which has four different types of motors. In order to work optimally, electric motors need a protection system that can protect them from threats. In this study, the protection system used is Thermal Overload Relay (TOR) which functions as an overload controller so that the electric motor is not easily burned or damaged. In this case, the TOR must be adjusted according to the capacity of each induction motor so that when an overload occurs, the TOR will automatically cut off the current flowing in the motor so that damage can be avoided. The TOR trip standards in this study uses the NEMA (National Electrical Manufactures Association) standard with the method used, namely Research and Development (R&D) where this method is carried out to produce certain products and test the effectiveness of these products. The data collection was obtained through journals and books.
STUDI NUMERIK EVALUASI SUDUT DIVERGENSI TERHADAP KARAKTERISTIK ALIRAN FLUIDA DI DALAM SYMMETRIC FLAT-WALLED DIFFUSER Rizka Nur Faila
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 2 No. 1 (2023): Maret : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v1i1.1848

Abstract

Diffuser is one of the construction that is able to control the behavior of the fluid. Adverse pressure gradient (APG) causes boundary layer develops rapidly so that it causes separation and Cp becomes low. So that need to evaluating divergence angle of diffuser to delay the separation to get optimization Cp of diffuser. This study uses a numerical method with software Fluent 6.3.26 with k-ω turbulence model of shear stress transport (SST) for evaluate in a symmetric flat-walled diffuser with constant ratio in divergence angle (2θ1) = 8° and usedused the Reynolds number 12.9 x 104. Test section consisted of three parts, namely symmetric diffuser, upstream channels, and downstream channels. The symmetric diffuser has a length (L1) = 500 mm, the upstream channel length (L2) = 500 mm, and the downstream channel has a length (L3) = 1000 mm. The results of the study showed that there is no flow separation on the field at midspan vertical diffuser (2θ1) = 8 °. However, based on the velocity vector visualization, flow separation can be observed at midspan plane horizontal to diffuser (2θ1) = 8 ° indicated the occurrence of separation in the area after the inlet diffuser, ie at x / L1 = 1.4 and x / L1 = 1.6

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