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All Journal VANOS Journal of Mechanical Engineering Education Prosiding Seminar Nasional Sains dan Teknologi Terapan Jurnal Elemen JURNAL CRANKSHAFT Scientific Journal of Mechanical Engineering Kinematika Teknomekanik Mechanical Engineering for Society and Industry Journal of Mechanical Engineering, Science, and Innovation Prosiding Seminar Nasional Teknologi Industri Berkelanjutan Sinergi Polmed : Jurnal Ilmiah Teknik Mesin The Journal of System Engineering and Technological Innovation Journal of Science and Social Development
Ahmad Anas Arifin
Jurusan Teknik Mesin, Institut Teknologi Adhi Tama Surabaya, Surabaya
Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Transportation

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Pengaruh Variasi Waktu Pegeringan dan Campuran Cangkang Kelapa Sawit dan Buah Pinus terhadap Karakteristik Biomassa Radyantho, Kholiq Deliasgarin; Rusdan, Adnan; Suanggana, Doddy; Arifin, Ahmad Anas; Haryono, Hadhimas Dwi; Manta, Faisal
JURNAL CRANKSHAFT Vol 7, No 4 (2024): Jurnal Crankshaft Vol.7 No.4 (2024)
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/cra.v7i4.13946

Abstract

Menurut International Energy Agency (IEA), permintaan energi dunia diperkirakan akan meningkat sebesar 45% hingga tahun 2030, dengan sekitar 80% kebutuhan energi masih dipenuhi oleh bahan bakar fosil. Hal ini menunjukkan bahwa pengembangan energi alternatif menjadi sangat mendesak, dan biomassa menjadi salah satu solusi utama. Biomassa merupakan sumber energi terbarukan yang berasal dari bahan organik yang dapat diperbarui dalam waktu singkat, serta memiliki manfaat seperti menjadi bahan bakar pembangkit listrik dan mengurangi limbah organik yang belum dimanfaatkan dengan baik. Salah satu limbah organik yang kurang dimanfaatkan adalah limbah pengolahan kelapa sawit, seperti cangkang sawit, serta limbah buah pinus karena ketersediaannya dari industri sawit dan hutan pinus, serta kemampuannya mengurangi dampak lingkungan. Penelitian ini mengkaji pengaruh variasi komposisi campuran dan waktu pengeringan terhadap kadar air, nilai kalor, dan kadar abu biomassa/biobriket dari campuran cangkang kelapa sawit dan buah pinus. Hasil penelitian menunjukkan bahwa biomassa dengan komposisi KC4 memiliki kadar air tertinggi (11,89%) dan tidak memenuhi Standar Nasional Indonesia (SNI) No. 1683:2021, sementara komposisi lainnya memenuhi standar kadar air. Dalam pengujian kadar abu, semua variasi komposisi dan waktu pengeringan melebihi standar SNI (≥ 10%). Namun, pada pengujian nilai kalor, semua variasi memenuhi standar SNI, dengan nilai tertinggi pada WP3 (6643,18 cal/g). Analisis ANOVA menunjukkan bahwa baik variasi komposisi campuran maupun waktu pengeringan secara signifikan memengaruhi kadar air dan kadar abu, namun hanya waktu pengeringan yang signifikan memengaruhi nilai kalor biomassa.
Studi Eksperimental Pengaruh Massa Pemberat Pada Sistem Penggerak Mekanisme Pembangkit Listrik Tenaga Oscillating Water Column Arya, Rizky Nur; Arifin, Ahmad Anas; Ulum, Miftahul
Journal of System Engineering and Technological Innovation Vol 3 No 02 (2024): Oktober 2024
Publisher : Faculty of Engineering, Wijaya Putra University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38156/jisti.v3i02.108

Abstract

The demand for electrical power is increasing, and with the depletion of fossil fuel reserves, there are numerous opportunities to explore alternative energy sources. Ocean waves have emerged as a promising renewable energy option, particularly in developed nations. Given Indonesia's geography as an archipelagic country with numerous beaches, it is well positioned to harness the potential of ocean wave power plants. Among the various ocean wave power plant designs, the oscillating water column system stands out for its ease of implementation and minimal access requirements. This system operates by capturing the air pressure generated by ocean waves reaching the coast. A study was conducted to experiment with a prototype power generation mechanism that serves as both a pressure generator and a substitute for artificial waves in the oscillating water column power plant system. The objective of this study was to investigate the impact of varying ballast masses on pressure and power generation. The test results revealed that the minimum pressure and power output were recorded with a ballast mass of 0 kg, yielding a pressure of 214.62 N and a power output of 8.811 J/s. Conversely, the maximum compressive force and power output were achieved with a ballast mass of 2 kg, resulting in a compressive force of 235.2 N and a compressive power of 15.755 J/s. The highest efficiency was observed with a ballast mass of 2 kg, yielding an efficiency of 45%.
Analisa Pengaruh Variasi Arus dan Kecepatan Pengelasan terhadap Uji Tarik dan Vickers pada Plat Baja SS316 dengan Pengelasan TIG Kuntoro, Ryan Cahyo; Arifin, Ahmad Anas; Suheni, Suheni; Ardyansah, Firmart
Prosiding SENASTITAN: Seminar Nasional Teknologi Industri Berkelanjutan Prosiding SENASTITAN Vol. 05 2025
Publisher : Institut Teknologi Adhi Tama Surabaya

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

Abstract

Pengelasan merupakan teknologi yang digunakan sebagai penyambung dua atau lebih logam dengan menggunakan logam pengisi atau tanpa logam pengisi yang proses di dalamnya disertai pelaburan logam induk atau logam pengisi. Penelitian ini tentang pengaruh variasi arus dan kecepatan pengelasan TIG yang diuji menggunakan SS316 terhadap uji Tarik, uji kekerasan Vickers, serta struktur makronya. Pengaruh variasi tersebut pada uji Tarik adalah yield stress paling tinggi terdapat pada variasi arus 110A dengan kecepatan 2,5 mm/s. Sedangkan nilai ultimate stress tertinggi terdapat pada variasi arus 90A dengan kecepatan las 2,5 mm/s. Dan untuk nilai regangan tertinggi terletak pada variasi 90A dengan kecepatan las 2 mm/s dan 2,5 mm/s serta variasi 110A dengan kecepatan las 2,5 mm/s. dan untuk pengaruhnya pada pengujian kekerasan Vickers didapatkan bahwa nilai rata-rata VHN yang tertinggi ada pada variasi arus 110A dengan kecepatan las 2,5 mm/s nilai VHN tersebut adalah 579,17 kg/mm2. Sedangkan nilai rata- rata paling kecil adalah 423,49 kg/mm2 nilai ini terdapat pada variasi arus 110A dengan kecepatan las 2 mm/s. nilai rata – rata HAZ tertinggi terdapat pada arus pengelasan 110 A dan kecepatan las 1,5 mm/s dengan rata – rata HAZ sebesar 1,2 mm, sedangkan nilai rata – rata HAZ terendah ada pada arus pengelasan 80 A dan kecepatan las 2 mm/s dan 2,5 mm/ dengan rata – rata HAZ sebesar 1 mm.
Comparative analysis of bio-inspired and topology-optimized lattices under compressive loading Arifin, Ahmad Anas; Batan, I Made Londen; Bici, Michele; Wahjudi, Arif; Pramono, Agus Sigit
Teknomekanik Vol. 9 No. 1 (2026): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v9i1.45472

Abstract

Lattice structure design is still dominated by strut-based forms and surface-based shapes, such as triply periodic minimal surfaces (TPMS), which both exhibit overlapping limitations. Strut lattices often show strong anisotropy because their response depends heavily on cell orientation, while TPMS lattices are difficult to adjust when bounded by geometric constraints. These conditions eventually led to stagnation in the development of lattice morphology. Hybrid and topology-optimization methods have appeared as possible alternatives, but many of them still produce modified versions of classical patterns. This study examined two lattice geometries: the Pyramorph, inspired by the shape of a pyramid, and the Topomorph, generated through a topology optimization framework. Both structures were designed using a CAD unit cell patterning technique and manufactured using the FDM method, with relative densities ranging from 0.40 to 0.44. Their mechanical behaviour was examined through FEA simulation and uniaxial compression testing. The parameter variations included cell orientations of 0°, 15°, 30°, and 45°, and cell sizes of 8 mm and 12 mm within a 24 mm specimen. The Topomorph showed superior strength, reaching 15–20 MPa, while the Pyramorph reached only 7–8 MPa. The highest value, about 20.5 MPa, was obtained from the Topomorph at 0° and with an 8 mm cell size. Failure modes indicated buckling and delamination in the Pyramorph, while the Topomorph tended to collapse progressively. These findings indicate that topology optimization combined with CAD-based patterning could significantly improve lattice performance.
Investigation of discrepancies in isotropic material and structural properties in lattice frameworks Ahmad Anas Arifin; I Made Londen Batan; Michele Bici; Arif Wahjudi; Agus Sigit Pramono
Mechanical Engineering for Society and Industry Vol 5 No 1 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.13018

Abstract

Lattice structures have developed as a vital component in advanced engineering applications due to their superior strength-to-weight ratios and adjustable mechanical properties. This paper focuses on examining the correlation between the isotropic features of lattices at the material level and their structural performance. The research used near-isotropic Crossing-cylinder (CC)- Body Centered Cubic (BCC) cells in various orientations and sizes. Both experimental analysis and finite element analysis were used to examine the compressive strength of the structure in each orientation. The results reveal that cell orientation is important for determining failure modes and mechanical performance at the structural level. At 0°, the lattice has higher compressive strength and energy absorption due to effective load transfer via CC-aligned struts. In contrast, higher orientations (e.g., 15°, 30°, and 45°) are dominated by collapse-type failures, indicating anisotropic behavior in an otherwise isotropic design. Smaller cell sizes have more strength at lower orientations due to their higher relative density, but larger cells perform better at higher orientations.
ANALISIS TEGANGAN SECARA STATIS DAN DINAMIS PADA POROS TRUK PENGANGKUT RINGAN MENGGUNAKAN METODE ELEMEN HINGGA Muhammad Fakku Ilham Firmansyah; Ahmad Anas Arifin; Eka Marliana; Miftahul Ulum
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.v10i1.712

Abstract

The purpose of this study is to determine the structural failure that occurs in the propeller shaft model of light duty vehicles with FCD450-10, SM45C, and SCM440 material types due to static and dynamic loading. This research was conducted using a simulation-based finite element method on software. The results of static FEM simulations show that each material has its own characteristics. Based on the static stress analysis that has been carried out, the results are obtained that the FCD450-10 material is stated to be in the best condition among other materials with the smallest equivalent stress value, which is 0.34203 MPa, and has the lowest minimum shear stress value of 0.19294 MPa. The best maximum total displacement value was obtained in SCM440 material, with the smallest value of 8.3405 mm. Based on the results of the Random Vibration simulation on the directional deformation of the SCM440 material, it is stated that it is in the best condition among other materials, with the smallest maximum directional deformation value of 30.109 mm and at the equivalent stress the smallest maximum value obtained is 84,433 MPa
Cover and Editorial Page Ahmad Anas Arifin
Journal of Mechanical Engineering, Science, and Innovation Vol 6, No 1 (2026): (April)
Publisher : Institut Teknologi Adhi Tama Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jmesi.2026.v6i1.9035

Abstract

Comparative analysis of bio-inspired and topology-optimized lattices under compressive loading Ahmad Anas Arifin; I Made Londen Batan; Michele Bici; Arif Wahjudi; Agus Sigit Pramono
Teknomekanik Vol. 9 No. 1 (2026): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v9i1.45472

Abstract

Lattice structure design is still dominated by strut-based forms and surface-based shapes, such as triply periodic minimal surfaces (TPMS), which both exhibit overlapping limitations. Strut lattices often show strong anisotropy because their response depends heavily on cell orientation, while TPMS lattices are difficult to adjust when bounded by geometric constraints. These conditions eventually led to stagnation in the development of lattice morphology. Hybrid and topology-optimization methods have appeared as possible alternatives, but many of them still produce modified versions of classical patterns. This study examined two lattice geometries: the Pyramorph, inspired by the shape of a pyramid, and the Topomorph, generated through a topology optimization framework. Both structures were designed using a CAD unit cell patterning technique and manufactured using the FDM method, with relative densities ranging from 0.40 to 0.44. Their mechanical behaviour was examined through FEA simulation and uniaxial compression testing. The parameter variations included cell orientations of 0°, 15°, 30°, and 45°, and cell sizes of 8 mm and 12 mm within a 24 mm specimen. The Topomorph showed superior strength, reaching 15–20 MPa, while the Pyramorph reached only 7–8 MPa. The highest value, about 20.5 MPa, was obtained from the Topomorph at 0° and with an 8 mm cell size. Failure modes indicated buckling and delamination in the Pyramorph, while the Topomorph tended to collapse progressively. These findings indicate that topology optimization combined with CAD-based patterning could significantly improve lattice performance.
SIMULASI SASIS MOBIL FORMULA ELEKTRIK ENGGANG ITK MENGGUNAKAN METODE FINITE ELEMENT ANALYSIS Kholiq Deliasgarin Radyantho; Hadhimas Dwi Haryono; Alfian Djafar; Aria Zesar Darmawan; Surya Saputra; Ahmad Anas Arifin
SINERGI POLMED: Jurnal Ilmiah Teknik Mesin Vol. 7 No. 2 (2026): Edisi Juni
Publisher : Politeknik Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51510/sinergipolmed.v7i2.3195

Abstract

Program elektrifikasi di Indonesia bertujuan untuk mengurangi konsumsi bahan bakar fosil dengan cara meningkatkan konversi energi dari bahan bakar gas dan minyak menjadi listrik. Program ini melibatkan pengembangan infrastruktur energi yang berkelanjutan, pemanfaatan sumber energi terbarukan, dan peningkatan kapasitas penggunaan konversi listrik seperti kompor hingga kendaraan listrik. Kendaraan listrik seperti mobil listrik merupakan capaian teknologi yang saat ini marak diimplementasikan. Di Indonesia, Puspernas menyelenggarakan lomba Kompetisi Mobil Listrik Indonesia (KMLI) yang diadakan tahunan di Politeknik Negeri Bandung (Polban). Institut Teknologi Kalimantan telah rutin mengikuti lomba tersebut dalam 2 tahun terakhir namun belum mencapai kesuksesan pada level nasional. Hal tersebut menjadi alasan utama riset ini. Studi ini mengevaluasi salah satu faktor pada kendaraan listrik yaitu sasis. Sasis merupakan komponen penopang yang bertugas menahan gaya yang terjadi saat kendaraan bekerja. Metode pembebanan sasis dilakukan menggunakan beban statis kendaraan, beban tabrak depan, samping, dan kondisi kendaraan terbalik. Simulasi dilakukan menggunakan metode Finite Element Analysis (FEA).. Hasil analisis meliputi tegangan ekuivalen (von mises stress), defleksi, dan nilai safety factor. Sasis Formula Elektrik Enggang ITK mampu menahan beban statis vertikal 152,3 kg dengan baik dilihat dari tegangan von mises, defleksi, dan safety factor dengan menggunakan material ASTM A36, namun sasis tidak mampu menahan beban tabrak depan, samping, dan kondisi terbalik dari kecepatan 60 km/h. Hal ini menunjukkan sasis akan rusak permanen saat terjadi tabrakan. Perlu dilakukan perubahan material atau desain penguat sasis sehingga sasis mampu menahan gaya akibat tabrakan.
Co-Authors Afira Ainur Rosidah Agus Sigit Pramono Agus Sigit Pramono Agus Sigit Pramono Alfian Djafar Ali Khomsah Aloysius Doni Bramantyo Ambar Chris Nadita Ardi Noerpamoengkas Ardyansah, Firmart Aria Zesar Darmawan Arif Wahjudi Arif Wahjudi Arif Wahjudi Arya, Rizky Nur Bagoes P. Natakusuma Bambang Pramujati Bambang Setyono, Bambang Bici, Michele Desmas A. Patriawan Desmas Arifianto Patriawan Desmas Arifianto Patriawan Dwi Khusna Eka Marliana Firman Prastya Nugroho Frizka Vietanti Gatot Setyono Hadhimas Dwi Haryono Hanif Darmawan Firmansyah Haryono, Hadhimas Dwi Hasan S. Maulana Hery Irawan Hery Irawan Hery Irawan, Hery I Made Londen Batan I Made Londen Batan I Made Londen Batan Iftika Philo Wardani Kholiq Deliasgarin Radyantho Kholiq Deliasgarin Radyantho Korrie Febryan Kuntoro, Ryan Cahyo Kurnia Bekti Indarmawan M Arif Hidayatulloh Manta, Faisal Maulana Rizqi Mahendra Maulana, Hasan Syafik Michele Bici Michele Bici Miftahul Ulum Moch Kiki Febrian Mochamad Syaiful Andreansyah Eka Putra Muhammad Ali Masykur Muhammad Fakku Ilham Firmansyah Poesoko, Ayu Setyaning Sayekti Rakhmadanu, Yanuariza Rico Ismi Hidayatullah Rusdan, Adnan Suanggana, Doddy Suheni Suheni Suheni Surya Saputra Syamsuri Syamsuri Syamsuri Vega Viandi Prihantoko Vincentius Deny Pradana Vuri Ayu Setyowati Wahyu Stiyo Budi Wicaksono, Kurniawan Bagus Yanuariza Rakhmadanu Zain Lillahulhaq