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All Journal Jurnal Teknologi dan Riset Terapan (JATRA) Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Jurnal Pendidikan Teknik Mesin
Leksonowati, Nur Fitria Pujo
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Aerospace Engineering Automotive Engineering Computer Science & IT Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Mechanical Engineering Other

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Rancang Bangun Kerangka Tanaman Hidroponik Politeknik Negeri Batam Pamungkas, Nurman; Widiastuti, Hanifah; Restu, Fedia; Leksonowati, Nur Fitria Pujo; Arifin, Nurul Laili; Muvariz, Mufti Fathonah; Ulfah, Nurul; Widodo, Widodo; Baharudin, Budi; Fajrin, Aulia; Fyona, Annisa; Kamsyah, Domi; Gemala, Mega; Rosbandrio, Wowo; Aryswan, Adhe; Siregar, James; Saputra, Hendra; Irawan, Benny Haddli; Saputra, Ihsan; Ariyanto, Nugroho Pratomo; Mutiarani, Mutiarani
Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Vol 5 No 1 (2023): Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/abdimaspolibatam.v5i1.4866

Abstract

The hydroponic pilot project in the Batam State Polytechnic area was motivated by problems with economic conditions and declining health conditions during the Covid-19 pandemic. This project is expected to support the “growing your own food movement” in an effort to reduce unemployment, increase food security and a healthy lifestyle. The hydroponic method was chosen because it is very easy to do and does not require a large area of ​​land. In this community service activity, a hydroponic plant building framework will be made as a prototype of an efficient and efficient hydroponic building so that it can be used by the wider community. This activity is also useful for applying design knowledge as one of the PbL activities carried out by CAD, CNC, CAM, and Fabrication Engineering courses in the Mechanical Engineering Department, so that it can become an arena for higher education participation to support people's lives. The method of implementing this community service activity is to make observations to find a suitable area to build a hydroponic plant house, then the results of the observations are poured in the form of a design by utilizing software so that the materials needed and the shape of the framework that is built can be known. The last activity is making a hydroponic plant place. This activity is planned to be carried out from April to November 2021. Based on the results of the evaluation of the service program questionnaire for product distribution, it is known that the majority of respondents are satisfied with the products produced.
Studi Keausan Mata Pahat Pada Proses Pembubutan Material ST 37 Manurung, Meilani Mandhalena; Leksonowati, Nur Fitria Pujo; Saputra, Agung; Pamungkas, Nurman; Stefani, Windy; Batubara, Ninda Hardina; Purba, Adi Syahputra; Muvariz, Mufti Fathonah
Jurnal Teknologi dan Riset Terapan (JATRA) Vol. 6 No. 1 (2024): Jurnal Teknologi dan Riset Terapan (JATRA) - June 2024
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v6i1.7418

Abstract

Penelitian ini bertujuan untuk membandingkan tingkat keausan pada tiga jenis pahat insert bubut, yaitu CNMG120408-NM4 WPP20, CNMG432-MS3, dan CNMG 150604r-k 4325, dalam kondisi pemotongan yang identik. Variabel kedalaman potongan dan kecepatan spindle ditetapkan pada 1,0 mm dan 560 rpm, dengan material yang digunakan adalah besi ST 37. Hasil menunjukkan bahwa CNMG 150604r-k 4325 mengalami kehilangan massa paling besar, sedangkan CNMG120408-NM4 WPP20 menunjukkan keausan paling rendah. Faktor-faktor yang mempengaruhi keausan ini meliputi gesekan, temperatur tinggi, kecepatan potong, material yang diproses, dan kondisi pemotongan. Penelitian ini memberikan highlight tentang faktor-faktor yang mempengaruhi keausan pada pahat insert bubut sehingga dapat dijadikan referensi untuk pemilihan pahat yang tepat untuk meningkatkan efisiensi proses permesinan
Studi Simulasi Statis Struktur Desain Cradle Penopang Kokpit BAC 111 Stefani, Windy; Firmansyah, Adi Ridho; Prasetyo, Naufal Abdurrahman; Leksonowati, Nur Fitria Pujo
Jurnal Teknologi dan Riset Terapan (JATRA) Vol. 6 No. 1 (2024): Jurnal Teknologi dan Riset Terapan (JATRA) - June 2024
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v6i1.7589

Abstract

Cradle, a lifting device used to move the Cockpit head and other aircraft parts. The aim of this research is to obtain maximum data on the cradle structure through static simulation using SolidWorks 2020 software. The research was carried out by simulation using SolidWorks 2020 software with analysis of stress, strain and safety factor calculations for the cradle structure in supporting a static load of 1400 kg. The cradle design process was made using SolidWorks software, with the cradle size being 338 cm long, 145 cm wide at the top and 297 cm at the bottom, and using ASTM A36 type channel iron material with dimensions of 150 mm x 75 mm x 6.5 mm with loading. static of 1400 kg. The simulation results show that the maximum pressure value applied to the cradle with ASTM A36 steel material is 50.206 Mpa, below the yield strength value of 250 Mpa. The maximum displacement recorded was 1,169 mm, indicating that the deformation that occurred in the cradle structure was very minimal. With a maximum cradle capacity weighing 6.97 tons and a maximum wheel load capacity of 2.7 tons
STUDI KOMPARATIF PENGGUNAAN YOKE AC DAN DC UNTUK DETEKSI CACAT SUBSURFACE PADA MATERIAL BERLAPIS CAT Leksonowati, Nur Fitria Pujo; Pamungkas, Nurman; Mufariz, Mufti Fathonah; Purba, Adi Syahputra; Manurung, Meilani Mandhalena; Stefani, Windy; Batubara, Ninda Hardina; Dupan, Pandi
Jurnal Teknologi dan Riset Terapan (JATRA) Vol. 7 No. 1 (2025): Jurnal Teknologi dan Riset Terapan (JATRA) - June 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v7i1.8565

Abstract

Penelitian ini bertujuan untuk mengevaluasi perbandingan efektivitas yoke AC dan yoke DC dalam mendeteksi cacat bawah permukaan (subsurface defect) pada pelat baja karbon A36 yang dilapisi cat dengan ketebalan bervariasi menggunakan metode Magnetic Particle Inspection (MPI). Lima spesimen baja dengan ketebalan lapisan cat 100, 200, 300, 400, dan 500 mikron diuji. Metode visible wet particle diterapkan setelah kalibrasi yoke AC dan DC sesuai standar BS 6072. Hasil penelitian menunjukkan bahwa pada ketebalan cat 100 mikron, yoke AC mendeteksi 93% cacat, sedangkan yoke DC mendeteksi 98%. Seiring dengan meningkatnya ketebalan cat, performa yoke AC menurun drastis, terutama pada ketebalan 500 mikron, di mana yoke AC hanya mampu mendeteksi 38% cacat, sementara yoke DC masih mampu mendeteksi 43%. Dengan demikian, yoke DC lebih efektif dalam mendeteksi cacat bawah permukaan pada spesimen dengan lapisan cat yang lebih tebal dibandingkan yoke AC.
OPTIMALISASI SUMBER DAYA DAN TEKNOLOGI DALAM PROGRAM PEMBERDAYAAN MASYARAKAT DESA PULAU JEMARE Leksonowati, Nur Fitria Pujo; Pamungkas, Nurman; Butar, Hendra Butar; Aryswan, Adhe; Juangsa Putra, Lalu Giat; Fyona, Annisa; Nugroho, Cahyo Budi; Wibowo, Ari; Gemala, Mega; Ariyanto, Nugroho Pratomo; Arifin, Nurul Laili; Puspita, Roza; Sriyanto, Sriyanto; Dzulfiqar, Mohamad Alif; Stefani, Windy; Batubara, Ninda Hardina; Fajrin, Aulia; Purba, Adi Syahputra; Manurung, Meilani Mandhalena; Budiman, Budiman
Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Vol. 7 No. 1 (2025): Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/abdimaspolibatam.v7i1.7105

Abstract

This paper discusses in depth the implementation of the Village Community Empowerment Program (P2MD) carried out on Jemare Island. The main focus of this program is the application of appropriate technology, which includes public street lighting and a water pump system, both powered by solar panels. The main objective of this initiative is to improve the quality of lighting and the provision of clean water on the island, two important aspects that are greatly needed by the local residents. Through a series of intensive observations and discussions with the local residents, the community service team was able to identify and solve various problems faced by the residents. As a result of these efforts, four street lights have been successfully installed and operated, and the water pump system has been successfully connected to the water pump machine and water storage tank. It is hoped that this initiative can have a significant positive impact on the quality of life of the residents of Jemare Island, support their business activities and economy, and provide a solution to the uneven distribution of electricity by the state electricity company (PLN). This solution is practical because it utilizes renewable energy in the form of sunlight, which is abundantly available on Jemare Island.
Pengaruh Proses Tacking dan Welding Sequence Terhadap Distorsi Pada Pengelasan Butt Joint Pipa Dengan Flange Berbahan Carbon Steel Pamungkas, Nurman; Leksonowati, Nur Fitria Pujo; Mufariz, Mufti Fathonah; Hakim, Rahman; Baharudin, Budi; Dzulfiqar, Mohamad Alif; Saputra, Ihsan; Aryswan, Adhe; Reynaldi, Muhammad Ryan
Jurnal Teknologi dan Riset Terapan (JATRA) Vol. 5 No. 2 (2023): Jurnal Teknologi dan Riset Terapan (JATRA) - December 2023
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v5i2.6893

Abstract

This research explores the issue of distortion in spool pipes within the context of the fabrication process, with a specific focus on pipe connections with flanges. The main objective of this study is to investigate the impact of distortion caused by the tacking process during fit-up and the sequence of welding sequences in the welding process. The experiments were conducted by collecting data through inspections of concentricity in the connections using the Total Station Sokkia CX 101 S/N GP1159 tool, with tolerances set at 1, and 0.75 for capping weld. Fabrication Piping and Structure Onshore served as the testing location, with ASTM A671 CC60-12 as the testing material. All tests were conducted at room temperature. The inspection results were used as a guide for the repair process, providing instructions to the Fitter for improving the connections and enabling the welder to maintain the precision of the pipe connections with flanges to avoid distortion. Based on the experimental results, the concentricity of pipe connections reflects the occurring distortion, while welding sequences show a counter effect at each welding step. The distortion after welding, measured at 0.75, still complies with client specifications.
STUDI KERUSAKAN MESIN WHEEL LOADER LIUGONG ZL50CN MENGGUNAKAN FMEA DAN DIAGRAM FISHBONE Kamsyah, Domi; Ramadhani , Hasan Fajriansyah; Leksonowati, Nur Fitria Pujo; Wivanius, Nadhrah
Jurnal Pendidikan Teknik Mesin Vol. 12 No. 1 (2025): Jurnal Pendidikan Teknik Mesin
Publisher : Program Studi Pendidikan Teknik Mesin Fakultas Keguruan dan Ilmu Pendidikan Universitas Sriwiajaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jptm.v12i1.77

Abstract

Power system merupakan sistem yang memberikan tenaga agar wheel loader dapat beroperasi dan merupakan sumber penggerak utama bagi sistem atau komponen lainnya. Kegagalan fungsi pada power system mengganggu kerja sistem lain yang dapat berdampak kepada penurunan produktivitas, downtime, dan biaya perbaikan yang tinggi. Penelitian ini dilakukan untuk mencari tahu penyebab kegagalan power system dari wheel loader Liugong ZL50CN, dengan cara mengidentifikasi kemungkinan kegagalan dengan menggunakan metode FMEA dan dilanjutkan menggunakan diagram fishbone untuk melihat penyebab kegagalan. Hasil analis menunjukkan bahwa penyebab utama penyebab kerusakan pada mesin wheel loader ZL50CN dalam kurun waktu Januari 2021 sampai Desember 2023 adalah kerusakan sistem pendingin mesin. Hasil FMEA membuktikan bahwa modus kegagalan kerusakan sistem pendingin mesin memiliki nilai RPN tertinggi yaitu sebesar 243. Digram fishbone merinci penyebab apa saja yang membuat modus kegagalan kerusakan sistem pendingin mesin yang terdiri dari 4 faktor utama yaitu mechine, material, man, dan metode. Kata kunci: FMEA, Digram fishbone, RPN
Co-Authors Adhe Aryswan Agung Saputra Ari Wibowo Ariyanto, Nugroho Pratomo Baharudin, Budi Batubara, Ninda Hardina Budiman Budiman Butar, Hendra Butar Cahyo Budi Nugroho Dupan, Pandi Dzulfiqar, Mohamad Alif Fajrin, Aulia Firmansyah, Adi Ridho Fyona, Annisa Gemala, Mega Hendra Saputra Irawan, Benny Haddli Juangsa Putra, Lalu Giat Kamsyah, Domi Manurung, Meilani Mandhalena Mufariz, Mufti Fathonah Muvariz, Mufti Fathonah Nadhrah Wivanius, Nadhrah Nurul Laili Arifin, Nurul Laili Pamungkas, Nurman Prasetyo, Naufal Abdurrahman Purba, Adi Syahputra Puspita, Roza Rahman Hakim Ramadhani , Hasan Fajriansyah Restu, Fedia Reynaldi, Muhammad Ryan Rosbandrio, Wowo Saputra, Ihsan Siregar, James Sriyanto Sriyanto Stefani, Windy Sugeng, Santoso Ulfah, Nurul Widiastuti, Hanifah Widodo Widodo