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All Journal Jurnal Teknik Mesin Rotasi Jurnal Teknologi Jurnal Mechanical Media Mesin: Majalah Teknik Mesin VANOS Journal of Mechanical Engineering Education Journal of Science and Applicative Technology Metal Indonesia AKSIOLOGIYA : Jurnal Pengabdian Kepada Masyarakat Jurnal Elemen JURNAL CRANKSHAFT Infotekmesin STEAM Engineering : Journal of Science, Technology, Education And Mechanical Engineering J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Scientific Journal of Mechanical Engineering Kinematika Journal of Metallurgical Engineering and Processing Technology Journal of Mechanical Engineering Perwira Journal of Science and Engineering (PJSE) Journal of Applied Mechanical Technology (JAMET) AMMA : Jurnal Pengabdian Masyarakat Jurnal Foundry Perwira Journal of Community Development (PJCD) Journal of Sciencce Technology and Visual Culture Jurnal Alat Berat Journal of Industrial and Mechanical Engineering
Fajar Paundra
Institut Teknologi Sumatera
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing Social Sciences

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EVALUASI UMUR SISA SHELL COOLER CL-5 DENGAN METODE FITNESS FOR SERVICE-1/API 579 Eko Pujiyulianto; Herry Wardono; Irza Sukmana; Saka Mahidaya Hutama; Fajar Paundra
Scientific Journal of Mechanical Engineering Kinematika Vol 8 No 2 (2023): SJME Kinematika Desember 2023
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v8i2.273

Abstract

This research aims to evaluate the remaining life of the CL-5 shell cooler using the fitness for service method (FFS-1/API 579). The evaluation is conducted through the inspection process of components using Non-Destructive Testing (NDT) methods. This study is aimed at identifying thickness changes, analyzing the types of corrosion occurring in the CL-5 shell cooler, calculating the minimum allowable shell thickness, determining the Maximum Allowable Working Pressure (MAWP), estimating the corrosion rate, assessing the remaining life, and determining the operational feasibility of these components. Calculations are performed using the FFS-1/API 579 standard. The research results indicate that the total loss in 2011 and 2021 was 0.2 mm and 0.414 mm, respectively. The corrosion rates observed on the CL-5 shell cooler in 2011 and 2021 were 0.067 mm/year and 0.13 mm/year. Based on the minimum thickness and MAWP values evaluation, the CL-5 shell cooler is still fit for operation. Analysis of the remaining life of the CL-5 shell cooler indicates that the remaining life in 2011 and 2021 was 7.81 years and 6.83 years, respectively. Based on the above description, it can be concluded that the CL-5 shell cooler can still be operated.
ANALISIS TEGANGAN DAN MODULUS ELASTISITAS STRUKTUR KISI YANG DI DESAIN MENGGUNAKAN SCRIPT BERBASIS PYTHON Eko Pujiyulianto; Muhamad Fatikul Arif; Abdul Muhyi; Fajar Paundra; Ariq Athallah; Daniel Christover Munte
Scientific Journal of Mechanical Engineering Kinematika Vol 10 No 1 (2025): SJME Kinematika Juni 2025
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v10i1.572

Abstract

This study aims to evaluate TPMS lattice structure designs using Python scripts, which will later be used for lattice shell helmet designs. The structural design evaluation will be performed using numerical methods by varying the volume fraction. The lattice structures to be evaluated include FischerKochS, Honeycomb, pmy, and SchoenFRD. The CAD models of the lattice structures will be generated using Python-based scripts. The volume fraction variations are achieved by altering the shell thickness values in the Python scripts. The analysis will be conducted using numerical methods based on finite element analysis with static analysis and an elastic material model. The material used is ABS. Based on the research results, it indicates that the thickness specified in the script (thickness) cannot be defined as the actual shell thickness. The relationship between thickness and volume fraction indicates that each lattice structure will produce a different volume fraction when the shell thickness is varied. As the shell thickness increases, the volume fraction of the lattice structure also increases. volume fraction in lattice structures does not affect stress in a linear manner. The highest stress is observed in the pmy structure, followed by the Honeycomb and FischerKochS structures, while the SchoenFRD structure exhibits the lowest stress values. The most suitable design for use as a lattice structure in helmets is the ScheonFRD design. This is due to the design capability of ScheonFRD in distributing stress across the structure.
Edukasi Laboratorium Teknik Mesin ITERA Bagi Siswa SMKN 1 Raman Utara Dalam Meningkatkan Literasi Teknologi Fajar Paundra; Abdul Muhyi; Fajar Perdana Nurullah; Eko Pujiyulianto; Devia Gahana Cindi Alfian; Muhammad Syaukani; Kardo Rajagukguk; Dicky Januarizky Silitonga; Putra Andi Kolala; Farid Nanda Syanur; Rico Aditia Prahmana
AMMA : Jurnal Pengabdian Masyarakat Vol. 4 No. 5 : Juni (2025): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This community service activity aims to introduce the laboratory environment and facilities of the Mechanical Engineering Study Program at Institut Teknologi Sumatera (ITERA) to students of SMKN 1 Raman Utara, East Lampung. The activity was conducted in the form of a campus visit involving 62 12th-grade students from the Light Vehicle Engineering Department. The agenda included a presentation on higher education opportunities, interactive discussions, a Q&A session, and a direct tour of ITERA’s Mechanical Engineering laboratories, including the Materials Engineering, Energy Conversion, Fabrication, Manufacturing, Internal Combustion Engines, and Foundry laboratories. This activity was designed to inspire students to pursue higher education and broaden their understanding of engineering fields. The outcome showed a high level of enthusiasm among the students and successfully achieved the goal of introducing campus life and technological exposure. This initiative is expected to serve as an initial step in strengthening synergy between vocational high schools and higher education institutions.
Pengembangan Produk Meja dan Kursi Menggunakan Papan Komposit Sandwich Berbasis Material Lokal Sri Hastuti; Nani Mulyaningsih; Martha Arum Nugraheni; Agung Purnomo; Nurhadi; Catur Pramono; Setya Drana Harry Putra; Muktivani Swastiko; Tardho Hakim; Fajar Paundra
Aksiologiya: Jurnal Pengabdian Kepada Masyarakat Vol 10 No 2 (2026): Mei
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/aks.v10i2.28682

Abstract

Nilai daya jual rendah dan keberadaan serat sabut kelapa yang melimpah di pesisir laut terutama di daerah Klirong, Kebumen. Serat sabut kelapa digunakan pada beberapa produk industri kreatif seperti topi, tas, dan keset lantai. Kayu balsa banyak digunakan pada berbagai kebutuhan furnitur rumah karena memiliki massa yang ringan dan harga murah. Program Pengabdian Unggulan Universitas ini bertujuan untuk melakukan pendampingan warga  dalam pengembangan material serat sabut kelapa untuk pembuatan produk meja dan kursi menggunakan papan komposit sandwich yang berlokasi di Tuguran, Magelang Utara. Bahan komposit digunakan pada program  pengbadian ini yaitu serat sabut kelapa, kayu balsa, resin unsaturated polyester serta katalis. Rangka meja dan kursi menggunakan material baja hollow ST37. Metode pembuatan produk komposit sandwich berpenguat serat sabut kelapa fraksi volume serat 20% dengan core kayu balsa tebal 10 mm dibuat dengan metode cetak tekan menghasilkan energi serat 0,87 J dan ketangguhan impak 0,0176 J/mm². Perakitan rangka meja dan kursi menggunakan metode pengelasan Shielded Metal Arc Welding (SMAW) dengan arus 100 A. Hasil pembuatan produk menunjukkan bahwa komposit sandwich dengan metode cetak tekan menghasilkan papan komposit sandwich dengan sedikit void dan tidak terjadi delaminasi atau cacat. Pengelasan minim cacat pada parameter  arus 100 ampere, sehingga rangka kursi kuat menahan beban sampai 100 kg yang sudah diuji coba diduduki langsung oleh warga. Pendampingan pembuatan meja dan kursi komposit memberikan manfaat berupa kemampuan warga dalam soft skill dan hard skill dalam pembuatan produk meja dan kursi komposit sandwich yang memiliki daya jual dan kebermanfaatan tinggi.
OPERATION AND MAINTENANCE CHILLER TIPE SCREW PADA GEDUNG PLAZA PT. XYZ Bintang Ramadhan Hermnato; Gabriel Xaverius Englando Rajagukguk; Agung Rizky; Ferly Fikri Ramadhan; Fajar Paundra
ELEMEN : JURNAL TEKNIK MESIN Vol. 13 No. 1 (2026)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v13i1.372

Abstract

This report discusses the operational and maintenance processes of a screw-type chiller at Plaza PT XYZ. Chiller systems are crucial for maintaining the temperature in multi-story buildings, especially in tropical countries like Indonesia. The methods used in data collection include direct observation, interviews, and literature research on cooling systems were conducted during the practical work. While modular chillers are used outside working hours to save energy, screw chillers were chosen for their efficiency and high cooling capacity. The primary focus in maintaining system performance is regular maintenance, including preventive and corrective measures. These activities enhance understanding of the application of Heating, Ventilation, and Air Conditioning (HVAC) systems in the business world and highlight the importance of proper maintenance management to ensure buildings operate comfortably and efficiently.
Preventive Maintenance Pada Harbour Mobile Crane (HMC) Gottwald di PT.XYZ Apni Tito Maulana; Bimo Panji Riyanto; Khairul Umam Al Aziz; Muhammad Alfarizi Yoga Pratama; Muhammad Razi Scoriyanto; Dion Darmawan; Fajar Paundra; Nia Sastra Permata
JURNAL ALAT BERAT Vol 3 No 2 (2026): Juli 2026
Publisher : Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jab.v3i2.52

Abstract

Penelitian ini bertujuan mengevaluasi penerapan preventive maintenance pada Harbour Mobile Crane (HMC) Gottwald di PT XYZ Tbk. melalui analisis downtime, availability, MTBF, MTTR, serta identifikasi komponen dominan penyebab gangguan operasional. Metode penelitian menggunakan pendekatan deskriptif kualitatif dengan pengumpulan data melalui observasi lapangan, wawancara dengan teknisi dan operator, studi literatur, serta telaah data daily report perawatan HMC periode Januari-Oktober 2025. Hasil analisis menunjukkan bahwa HMC260 memiliki rata-rata availability sebesar 84,42%, dengan downtime tertinggi pada Juni sebesar 338,85 jam dan downtime terendah pada Agustus sebesar 13,12 jam. Pada HMC300, rata-rata availability sebesar 59,69% dengan downtime tertinggi pada Januari sebesar 780,70 jam. Analisis MTBF dan MTTR menunjukkan bahwa tingkat kesiapan alat tidak hanya dipengaruhi oleh durasi perbaikan, tetapi juga oleh frekuensi gangguan yang berulang. Penerapan preventive maintenance berbasis data historis dan prioritas komponen kritis diperlukan untuk menekan downtime, meningkatkan reliability, serta mendukung kelancaran operasional bongkar muat di lingkungan pelabuhan.
Compressor Valve Maintenance on CC 205 UPT Locomotive Depot Divre IV Tanjung Karang Fajar Paundra; Rene hario galih; Fuad Mulkan Al Machzumy; Alan Maulana Yusuf; Kevin Saputra; Anugrah Nan Agung; Puguh Elmiawan
Journal of Industrial and Mechanical Engineering Vol 1 No 1 (2023): Journal of Industrial and Mechanical Engineering
Publisher : Department of Industrial Engineering, Universitas Jenderal Soedirman.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jimien.2023.1.1.9719

Abstract

The CC 205 locomotive at the UPT Locomotive Depot Divre IV Tanjung Karang is a train that uses diesel fuel. The locomotive at UPT Locomotive Depot Divre IV Tanjung Karang experienced compressor damage, which required component replacement. This research aims to identify and carry out the process of treating valve leaks in locomotive compressors. Observation, interview, and documentation are used to obtain appropriate data and results. Maintenance carried out on this locomotive is necessary so that the CC 205 locomotive can be used optimally without any doubt. Maintenance is an activity in maintaining existing facilities by carrying out repairs or replacements necessary to maintain the condition of these components so that they are always in maximum condition. The analysis results show that air leaks in the compressor caused by compressor valve leaks can cause the pressure in the main tank not to be filled.
Effect of Hot Compression Molding Temperature Variation on Coconut Fiber HDPE Hybrid Composite and Sansevieria Trifasciata on Physical and Mechanical Properties Muhammad Farhan Sidik; Fajar Paundra; Rene Hario Galih; Abdul Muhyi; Eko Pujiyulianto; Farid Nanda Syanur; Annisa Indah Setyawati
Journal of Industrial and Mechanical Engineering Vol 2 No 1 (2024): Journal of Industrial and Mechanical Engineering
Publisher : Department of Industrial Engineering, Universitas Jenderal Soedirman.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jimien.2024.2.1.11826

Abstract

Temperature is one of the parameters that is very influential in the process of making HDPE matrix composites. This study aims to determine the effect of variations in heating temperature on tensile strength and bending strength and to analyze the fracture structure of HDPE composites. The materials used in this study were HDPE plastic from used bottles, coconut fiber and Sansevieria fiber with a composite ratio of 90:5:5. The process of making HDPE composites is carried out using the hot press compression method. The pressure used is 30 bar for 30 minutes. The temperature variations used are 150ºC, 160ºC, 170ºC, 180ºC, and 190ºC. This study conducted two tests, namely tensile testing and bending testing using the Universal Testing Machine. The tensile testing process uses the ASTM D 3039 standard and obtains the highest results on specimens of 170ºC with a tensile strength value of 509.80 MPa. The value of tensile strength has increased and decreased. The bending test process was carried out according to the ASTM D 790 standard and the highest results were obtained on the 170ºC specimen with a value of 90.99 MPa.
Pengaruh Variasi Waktu Curing Pada Kegagalan Uji Bending Komposit Sandwich Serat Karbon Dengan Core PVC Foam Fajar Paundra; Joy Rivaldo Aritonang; Eko Pujiyulianto; Abdul Abdul; Puguh Elmiawan
Infotekmesin Vol 16 No 2 (2025): Infotekmesin: Juli 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i2.2730

Abstract

Curing is a method used to enhance the performance of composite materials by heating them in an electric oven for a specific duration and at a controlled temperature. This study aims to examine the effect of curing time variations on the failure analysis of carbon fiber sandwich composites with a PVC foam core under bending tests. The materials used in this research include polyester resin, 240 gsm carbon twill fiber, and a 5 mm thick PVC foam core. The manufacturing method applied was vacuum bagging, followed by a curing process with time variations of 30 minutes, 60 minutes, 90 minutes, and 120 minutes at a constant holding temperature of 80°C. Bending tests were carried out according to ASTM C393 standards. The highest bending strength of the sandwich composite was achieved with a curing time of 120 minutes, reaching 45.55 MPa, while the lowest strength was observed in the specimen without curing, at 25.76 MPa. The failures observed after bending tests included core failures such as core crush, indentation, and delamination, as well as skin failures like micro buckling.
Analisis Kerusakan Dan Strategi Perawatan Pada Impeller Pompa Vertikal WGA6004 Aston Samuel Situmorang; Fajar Aji Nugraha; Andre Cahyadi; Nia Sastra Permata; Yudi Kurnaiawan; Fajar Paundra
JURNAL ALAT BERAT Vol 3 No 1 (2026): Januari 2026
Publisher : Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jab.v3i1.44

Abstract

Kerusakan impeller merupakan salah satu.permasalahan teknis utama yang sering terjadi dan berdampak langsung terhadap efisiensi operasional. Impeller memerlukan perawatan dan pemeliharaan yang kompleks  untuk mempertahankan peforma pompa agar dapat bekerja dengan optimum. Penelitian ini..bertujuan untuk menganalisis kegagalan dan melakukan strategi perawatan impeller WGA6004 pada pompa sentrifugal vertikal. Metode yang digunakan meliputi pengenalan dan observasi, penentuan studi kasus, pengamatan, pengambilan data impeller, dan studi literatur. Data dianalisis melalui metode kualitatif dan kuantitatif. Temuan dari penelitian menunjukkan bahwa kegagalan pada impeller umumnya disebabkan oleh empat faktor, termasuk pemilihan material yang dilakukan secara terburu-buru, yang sering dialami dalam sektor logam atau industri lainnya. Selain itu, saat merancang komponen, penting untuk mengingat beberapa prinsip dasar yang berlaku untuk setiap material dan aplikasi. Pencatatan parameter proses juga sangat krusial untuk mencegah kegagalan produk, dan dalam hal pemeliharaan, ini menjadi isu yang perlu diperhatikan meskipun sudah terdapat label peringatan tentang keselamatan dan petunjuk pemakaian; kegagalan akibat kondisi perawatan sering kali muncul pada produk logam. Penelitian ini menekankan betapa pentingnya memilih material yang tepat serta memiliki sistem pemeliharaan yang sistematis.
Co-Authors A. Juan Abdu Halim Wibowo Abdul Abdul Abdul Aziz Abdul Muhyi Abdul Muhyi Abdul Muhyi Afif Haidar Hasibuan Agung Purnomo Agung Rizky Ahmad Frantoni Aji Ahmad Kurniawan Ahmad Mukhlisin Ahmad Waldi Chaniago Akbar Reza Wahyudin Alan Maulana Yusuf Aldrein T.P.R. Tambunan Alex Noerdin Alwi Kenedi Sitepu Amelia Oktavia Anas Maulana Andhyka Jaya Saputra Andi Andi Andi Rahadiyan Wijaya Andre Cahyadi Andreas Yakobus Situmorang Annisa Indah Setyawati Antero Jona Vialin Anugrah Nan Agung Anung Raihan Apni Tito Maulana Ariq Athallah Arnold Aditya Pratama Arsi Maulana Ahmad Aston Samuel Situmorang Aufa Azfa Wahyu Bayu Fajar Nugroho Berkat Saut Manjadi Purba Bimo Panji Riyanto Bintang Ramadhan Hermnato Budi Prasetiyo Catur Pramono CH. Galen Amadeus Chistoforus Devis Arifin Danang Istanto Daniel Butar-Butar Daniel Christover Munte David Valentino Derman Francisco Siregar Devia Gahana Cindi Alfian Dicky J. Silitonga Dicky Januarizky Silitonga Dika Ardiansyah Dimas Aldyansyah Dimas Maulana Aji Dion Darmawan Duwi Hariyanto Eko Ardiansah Eko Pujiyulianto Eko Pujiyulianto Eko Pujiyulianto Eko Pujiyulianto Fajar Aji Nugraha Fajar Perdana Nurrullah Fajar Perdana Nurullah Farid Nanda Syanur Farid Nanda Syanur Febri Budi Darsono Febryan Utama Putra Felderico Andreas Sitanggang Ferly Fikri Ramadhan Firman Sri Bagaskara Firman Sri Bagaskara Fuad Hakim Fuad Mulkan Al Machzumy Fuad Mulkan Al Machzumy Gabriel Xaverius Englando Rajagukguk Gigih Tujo Pradibyo Gufron Zaidan Attuttaqwa H.T. Yudhistira Hadi Teguh Yudistira, Hadi Teguh Hamid Abdillah Handoyo Handoyo Hasan Bisri Bisri Herry Wardono I Gede Riyan Oka Saputra I Gusti Bagus Budi Dharma I Made Wijana Dwipa Ariyasa Ilham Ramadhan Siregar Ilhan Manzeis Imam Prabowo Imam Prabowo Indriyani Indriyani Irza Sukmana Joy Rivaldo Aritonang Jukepri Brain Meliala Kardo Rajagukguk, Kardo Kevin Saputra Kevin Vilhan Loveriando Khairul Umam Al Aziz Kisna Pertiwi Lathifa Putri A Leonardo Dicaprio Purba Lorensius Mikael Sahattua Sihombing Lukman Triawan M Ihsan Ar-Rozaq M. Agyp Hujjah Aprilian M. Fahan Sidik M. Muhibbul Khairi M. Rafi Kurniawan Manuel Elroi Markus Pasaribu Marone J Tambunan Martha Arum Nugraheni Moh. Fadhilah Ramadhan A Mohamad Riza Abidin Mufidah, Zunanik Muhamad Fatikul Arif Muhammad Alfarizi Yoga Pratama Muhammad Azel Darian Muhammad Fadhil Aulia Harbie Muhammad Fadil Muhammad Fadil Adrian Muhammad Farhan Sidik Muhammad Farhan Sururi Muhammad Farouq Abdul Aziz Muhammad Firjatullah Suhaeri Muhammad Hasbi Pratama Muhammad Ichsanudin Muhammad Ilham Fakhri Athallah Muhammad Irgi Bachtiar Muhammad Kinarya Saka Muhammad Maulana Al Hafidh Muhammad Rama Aditya Muhammad Razi Scoriyanto Muhammad Ridho Hilman Muhammad Rizky Hikmatullah Muhammad Syaukani Muhsin Muhsin Muhsin Muktivani Swastiko Nanang Adi Saputra Nani dkk. Mulyaningsih Nia Sastra Permata Nurdin, Akhmad Nurhadi P. Elmiawan P. Yunesti Puguh Elmiawan Puguh Elmiawan Puguh Elmiawan Puguh Elmiawan Putra Andi Kolala Putty Yunesti Rahmat Hidayat Rangga Bayu Pranajaya Ray Zaki Samudra Rene Hario Galih Rene hario galih Rico Aditia Prahmana Ridho Agustian Rifky Ardiansyah Rivaldo Rivaldo Rizky Candra Purnama Robertus Nicko Roni Hidayat Sabar Sahat Parulian Panjaitan Saka Mahidaya Hutama Salman Al Farisi Sastra Kusuma Wijaya Setya Drana Harry Putra Setya Pramana Hasibuan Sigit Setiawan Sri Hastuti Syamsul Hadi Tardho Hakim Triyono Triyono Wafiudin Romadhoni Widi Reeh Adi Agung Yohanes Alexander Romeo Napitulu Yonathan Ito Yosua Sinambela Yudi Kurnaiawan Yusuf Bahtiar Zian Millenio