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All Journal Jurnal Teknik Mesin Jurnal Optimalisasi JEMSI (Jurnal Ekonomi, Manajemen, dan Akuntansi) Rona Teknik Pertanian kawanad Jurnal Polimesin
ARHAMI
Universitas Syiah Kuala
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Pelatihan Penulisan Dan Submit Artikel Ilmiah melalui Online Journal Sisitem (OJS) Bagi Mahasiswa Akhir Program Studi Teknik Mesin Seluruh Perguruan Tinggi di Aceh Dandi Bachtiar; T. Edisah Putra; Zulfadhli; Akhyar; Arhami; Ratna Sari; Ahmad Syuhada; Razali Thaib
Kawanad : Jurnal Pengabdian kepada Masyarakat Vol. 2 No. 2 (2023): October
Publisher : Yayasan Kawanad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56347/kjpkm.v2i2.162

Abstract

The partner in this program is a collaboration with the Mechanical Students Association (HMM) of all universities studying in the Mechanical Engineering study program which is currently completing its final project in Aceh. The partner's problem is the lack of ability to write scientific articles, and, not knowing how to submit scientific articles via OJS (Oper Journal System), and the solution offered is to provide an introduction to strategies for writing scientific articles and the OJS stages in the journal publishing process, provide training in creating author accounts at OJS, providing training on submitting scientific articles through OJS, outreach on how to write scientific articles, as well as training on writing scientific articles. The results of service activities are that partners can recognize OJS and the OJS stages in the journal publishing process, partners have author accounts and can submit scientific articles to OJS, partners can write scientific articles well and correctly. Monitoring and evaluation are also carried out for the sustainability of further activities to resolve partner problems.
Optimization process of the truss structure using Finite Element Analysis: Step by step from 2D to 3D space Arhami Arhami; Iskandar Hasanuddin; Masri Masri
Jurnal POLIMESIN Vol 21, No 4 (2023): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i4.3933

Abstract

This paper discusses the process of optimizing the truss structure step by step from 2D to 3D space using finite element analysis. This step-by-step optimization process is carried out to simplify the analysis of truss structures from simple to more complex cases. Optimization aims to obtain the minimum cross-sectional area and weight for each truss member. The stages of the optimization process carried out in this study are starting from a 2-dimensional (2D) truss structure with several two and five members to a 3-dimensional (3D) one-level tower with a total of 18 members. The optimum criterion as the constraint used is the full stress design method and the value of the cross-sectional area and weight of the structure as a result of optimization, leading to convergence during the iteration process. The tool used to run the iteration process is performed using Fortran software. The results of this optimization process are the total cross-sectional area (A) and a minimum of weight (W), that is, for a two-member truss A = 1 in2 and W = 4 lb, for a five-member truss A = 3.48 in2 and W = 14 lb. Furthermore, for a one-level of tower-space truss with a total of 18 elements, A = 57.91 in2 is obtained and the optimum weight of the truss structure is W = 134.02 lb. From these results, it can be seen that the optimization process that starts from simple to complex cases can be carried out easily and still takes into account the existing constraints
Study of characterization of natural biomaterials Nypa fruticans extract for scaffold fabrication using 3D bio-printing method Darwin Hendri; Irwansyah Irwansyah; Arhami Arhami; M. Rizki Maulana; Aulia Indriani
Jurnal Polimesin Vol 23, No 6 (2025): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i6.7562

Abstract

Nypa fruticans (Arecaceae) is a tropical mangrove plant with potential as a natural biomaterial due to its galactomannan content, a water-soluble hetero-poly-saccharide suitable as a base material for bio-ink. This study aims to evaluate the potential of Nypa fruticans extract as a sustainable natural biomaterial for scaffold fabrication using 3D bio-printing technology. To optimize its mechanical and structural properties, glycerol and sorbitol were added as plasticizing agents. The research methods consist of (a) maceration method extraction of Nypa fruticans fruit, subsequent characterization by Fourier Transform Infrared (FTIR) spectroscopy and Gas Chromatography-Mass Spectrometry (GC–MS) analysis, (b) formulation of biomaterials with glycerol and sorbitol at varying concentrations (5%, 10%, and 15%), and (c) scaffold fabrication using 3D bio-printing. The scaffolds were then assessed for printed line width, density, and porosity. FTIR analysis confirmed the presence of hydroxyl (O–H) functional groups at 3600–3300 cm⁻¹, while GC–MS detected 5-hydroxymethylfurfural, indicating polysaccharide derivatives consistent with galactomannan content. The addition of sorbitol significantly influenced the physical properties and printability of the formulated bio-ink, with the optimal composition obtained at 85% Nypa fruticans extract and 15% sorbitol. This formulation successfully produced stable CAD-based scaffold architectures with cubic and rhombic pore configurations, achieving precise deposition widths (±1.18 mm) relative to the 0.5-mm nozzle diameter. An increased sorbitol concentration of 15% correlated with higher scaffold density (up to 0.971 g/cm3) and reduced porosity (down to 0.436). These findings demonstrate the potential of Nypa fruticans extract as an efficient and sustainable natural bio-ink for tissue engineering applications.Study of characterization of natural biomaterials Nypa fruticans extract for scaffold fabrication using 3D bio-printing method
Co-Authors Ahmad Syuhada Akhyar Aulia Indriani Bismi Khairijal Dandi Bachtiar Darwin Hendri Fitriadi Fitriadi Hasnita Hasnita Iing Pamungkas Irawan, Heri Tri Irawan, Risnadi Irwansyah Irwansyah Iskandar Hasanuddin Khairul Hadi M. Dirhamsyah M. Dirhamsyah M. Rizki Maulana Masri ALI Masri Ibrahim Masri Masri Naswadi Naswadi Rahmatsyah Maksum Ramsi Ratna Sari Razali Thaib Rizki Aulia Nanda Rudi Kurniawan Syahriza Syahriza T. Edisah Putra T. M. Azis Pandria Zulfadhli