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All Journal Jurnal Teknik ITS IPTEK Journal of Proceedings Series Rekayasa Mesin Jurnal Edukasi dan Penelitian Informatika (JEPIN) Seminar Nasional Informatika (SEMNASIF) Syntax Literate: Jurnal Ilmiah Indonesia CARADDE: Jurnal Pengabdian Kepada Masyarakat Teknomekanik JMES The International Journal of Mechanical Engineering and Sciences Sewagati
Alief Wikarta
Departemen Teknik Mesin Institut Teknologi Sepuluh Nopember
Arts Humanities Computer Science & IT Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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Penerapan Produk Teknologi Traktor Tangan Bertenaga Listrik Untuk Petani Alief Wikarta; Is Bunyamin Suryo; M Khoirul Effendi
CARADDE: Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 3 (2023): April
Publisher : Ilin Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31960/caradde.v5i3.1829

Abstract

Tujuan dari artikel ini adalah untuk menerapkan teknologi traktor tangan bertenaga listrik yang dapat membantu meningkatkan efisiensi dan produktivitas pada pengelolaan lahan pertanian. Metode yang digunakan adalah dengan melakukan fabrikasi komponen mekanik dan elektrik dari traktor tangan bertenaga listrik. Fabrikasi tersebut meliputi pembuatan komponen mekanis seperti frame, cage wheel, under cover, battery and controller cover, motor mount, dan leveler, serta pembuatan komponen electric power train seperti electric motor, controller, battery pack, dan sprocket serta chain. Pembuatan traktor tangan bertenaga listrik dilakukan di workshop mobil listrik Institut Teknologi Sepuluh Nopember (ITS), kemudian produk diuji coba di lahan pertanian yang ada di desa Wanar, Lamongan. Hasil pengujian menunjukkan bahwa traktor tangan bertenaga listrik ini memiliki performa yang baik dan mampu menghemat biaya pengelolaan lahan pertanian dengan signifikan. Dengan menggunakan teknologi ini, petani dapat mengurangi biaya operasional seperti penggunaan bahan bakar, perawatan mesin, dan penggantian suku cadang. Oleh karena itu, disarankan untuk terus melakukan pengembangan dan penelitian lebih lanjut dalam penggunaan traktor tangan bertenaga listrik sebagai alternatif pengelolaan lahan pertanian yang efisien dan ramah lingkungan.
Natural fiber substitution in glass fiber-reinforced plastics: A Tensile properties simulation Wikarta, Alief; Andikusuma, Chandya; Ariatedja, Julendra; Batan, I Made Londen; Gapsari, Femiana; Khoo, Sze Wei
Teknomekanik Vol. 8 No. 1 (2025): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v8i1.33472

Abstract

Glass fiber-reinforced polymer composite materials, commonly used for industrial axial flow fan blades due to their high strength-to-weight ratio, are environmentally criticized for their non-biodegradability. This concern has prompted the investigation of eco-friendly alternatives, such as sisal and kenaf as natural fibers. Although they generally have lower mechanical properties than synthetic fibers, they offer advantages in terms of biodegradability, cost, and density. This study aims to evaluate the feasibility of partially substituting glass fiber with unidirectional natural fibers kenaf and sisal in a 14-layer GFRP axial fan blade through numerical simulation. The research employed a finite element method (FEM) to simulate tensile testing in accordance with ASTM D-638 standards. Several hybrid layer configurations were analyzed, focusing on the number and position of natural fiber layers replacing glass fiber, particularly the glass roving (GR) layers. The simulation investigated how these substitutions influence the overall tensile stress and elastic modulus of the composite blade structure. The findings suggest that this substitution does not significantly affect tensile characteristics but substantially improves the biodegradability of the composite, resulting in a more environmentally friendly material without compromising mechanical performance.
Rancang Bangun Mesin Pengaduk Multifungsi guna Meningkatkan Potensi dan Membantu UMKM dengan Kebutuhan Pencampuran Bahan yang Terdapat di Kota Blitar, Jawa Timur Alhadi, Kafi Hannan; Hendrowati, Wiwiek; Guntur, Harus Laksana; Solichin, Moch.; Yuniarto, Muhammad Nur; Sutantra, I Nyoman; Wikarta, Alief; Pramono, Agus Sigit; Sutikno, Sutikno; Syaifudin, Achmad; Harto, Budi
Sewagati Vol 9 No 4 (2025)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v9i4.2495

Abstract

Salah satu kendala utama yang dihadapi oleh UMKM adalah keterbatasan teknologi dan peralatan yang memadai. Banyak pengusaha kecil masih menggunakan cara manual dalam proses produksi, yang tentunya akan memakan waktu lama dan tenaga lebih besar. Selain itu, kualitas produk yang dihasilkan sering kali tidak konsisten, karena bergantung pada keterampilan pekerja dan alat-alat sederhana. Hal ini mengakibatkan terhambatnya kemampuan UMKM untuk meningkatkan skala produksi dan bersaing dengan perusahaan yang lebih besar. UMKM yang menjadi sasaran dalam rancangan kegiatan abmas ini adalah UMKM yang melibatkan proses pencampuran bahan dalam menjalankan usahanya. Contoh UMKM yang menjadi sasaran utama dalam abmas ini adalah UMKM yang bergerak pada bidang konstruksi level menengah ke bawah yang memerlukan bantuan alat pengaduk cat, UMKM yang memproduksi sabun cair, UMKM yang memproduksi lem perekat, hingga UMKM yang memproduksi makanan seperti kerupuk puli bawang, roti, donat yang notabene memerlukan proses pencampuran bahan. Pada Abmas dan KKN ini tim telah berhasil merancang 3 alat mixer untuk pencampuran bahan dan mendistribusikan kepada UMKM yang membutuhkan melalui kerja sama dengan Dinas Koperasi, UKM, dan Tenaga Kerja Kota Blitar.
A Participatory Risk-Matrix Framework for User-Centered Validation of a Manual Standing Wheelchair Wikarta, Alief; Nurirawan, Rizkhi
JMES The International Journal of Mechanical Engineering and Sciences Vol 9, No 2 (2025)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25807471.v9i2.23228

Abstract

This study presents a participatory, risk-based validation framework for a manually actuated standing wheelchair. The standing function offers both physical and psychosocial benefits, including greater independence, improved social interaction, and better access to vertical space. However, adoption of such devices remains limited, especially in low-resource settings, due to concerns about usability, comfort, and safety. Rather than emphasizing technical novelty, the contribution of this study lies in applying a user-centered risk-matrix approach to systematically translate stakeholder concerns into design priorities. Through engagement with eight stakeholders, including direct users and institutional representatives, the study collected qualitative feedback on user experience. This feedback was organized into eight thematic risk categories. Among them, stability during transitions and the level of physical effort required were identified as the most pressing concerns. Each risk type was then evaluated using a qualitative 5×5 matrix to assess its likelihood and potential impact. This structured process enabled the design team to prioritize and implement targeted improvements, effectively reducing the likelihood of tipping-related risks. However, physical accessibility, particularly for users with limited upper-body strength, remained a high, unmitigated risk due to inherent limitations of manual operation. The study highlights the importance of integrating structured risk analysis with real user input to inform assistive technology development that is not only functional, but also contextually responsive.
Redesign of Rupture Disc Cross-Cut Type on the Condenser Steam Turbine Using Aluminium Alloy 1100 Materials Marwan; Alief Wikarta
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v11i5.64355

Abstract

In 2018, the electrical power system in South Sumatra experienced a major disturbance that caused a widespread blackout affecting all power plants, including the Indralaya Combined Cycle Power Plant (CCPP). To protect condenser system equipment from overpressure conditions, a rupture disc is installed as a safety device. The rupture disc must withstand the condenser operating vacuum pressure while rupturing in a controlled manner under excessive pressure conditions. This study aims to redesign and evaluate a safe and effective rupture disc using numerical simulation, analytical calculation, and experimental testing. Numerical analysis was conducted using the Finite Element Method (FEM) in ANSYS with a static structural approach. Analytical burst pressure prediction was performed using the Salarvand equation. Experimental validation was carried out through vacuum pressure testing on the actual rupture disc and overpressure testing on a 1:10 scale prototype. The results indicate that groove depth and scoring pattern significantly influence the burst pressure of the rupture disc. Increasing groove depth decreases burst pressure due to higher stress concentration in the grooved region. Experimental testing showed that the rupture disc with a groove depth of 1.5 mm failed before reaching the operating vacuum pressure of −0.086 bar, whereas the 0.5 mm groove depth maintained structural integrity under the same condition. Validated numerical simulation results demonstrated that rupture discs with groove depths of 0.5 mm and 1.0 mm produced burst pressures ranging from 0.10 to 0.12 MPa under overpressure conditions. The redesigned rupture disc therefore meets condenser safety requirements and has potential as a lower-cost alternative to OEM components using locally available materials.
Co-Authors Aang Ferianto Achmad Syaifudin Agus Sigit Pramono Agus Sigit Pramono Alfian Aziz Sahadewa Alhadi, Kafi Hannan Andikusuma, Chandya Ariatedja, Julendra Budi Harto Effendi, M Khoirul Femiana Gapsari MF Harus Laksana Guntur I Made Londen Batan I Nyoman Sutantra Indra Sidarta Indra Sidharta Is Bunyamin Suryo Ismail Maydiyanto Khoo, Sze Wei M Khoirul Effendi Marwan Nurirawan, Rizkhi Radian Fauzia Rahman Solichin, Moch. Sutikno Sutikno Sutikno Sutikno Unggul Wasiwitono Wiwiek Hendrowati Yolas Aditya Yudha Yuniarto, M. Nur Yuniarto, Muhammad Nur