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Perancangan dan Analisis Struktural Belt Konveyor Mesin Pengayak Pasir Tipe Rotary Berbasis Simulasi Autodesk Inventor untuk Meningkatkan Produktivitas Abd Kadir; Bahdin Ahad Badia; Muhammad Idris Putra; Citra Yurnidar Syah
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 12, No 1 (2026): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v12i1.14861

Abstract

Proses pengayakan pasir secara manual di industri konstruksi memiliki produktivitas rendah dan hasil yang tidak konsisten. Penelitian ini bertujuan untuk merancang belt konveyor mesin pengayak pasir tipe rotary dan menganalisis kekuatan struktural rangka menggunakan material aluminium 6061-T6. Metode penelitian meliputi perhitungan manual menggunakan teori mekanika teknik dan simulasi Finite Element Analysis (FEA) dengan software Autodesk Inventor 2020. Parameter yang dianalisis mencakup tegangan maksimum, regangan, displacement, dan faktor keamanan pada rangka mesin dengan beban operasi 4,165 N. Hasil perhitungan manual menunjukkan tegangan maksimum 71,126 MPa, regangan 0,001032, displacement 0,1912 mm, dan faktor keamanan 3,866. Hasil simulasi Autodesk Inventor memberikan tegangan maksimum 52,16 MPa, regangan 0,000635, displacement 0,4068 mm, dan faktor keamanan 5,272. Kedua metode menunjukkan deviasi 26,7% yang masih dalam rentang dapat diterima dan mengkonfirmasi bahwa rangka aman dengan faktor keamanan >3. Mesin yang dirancang mampu mengangkut dan menyaring pasir dengan kapasitas 5,7 ton/jam menggunakan motor listrik 2 HP, meningkatkan produktivitas 11-19 kali lipat dibandingkan metode manual (0,3-0,5 ton/jam). Kecepatan belt optimal 0,5 m/s dengan efisiensi pengayakan 92%. Desain ini telah tervalidasi dan siap untuk fabrikasi prototype.
Analisis Kinerja Metode Charging–Discharging Berbasis Arduino untuk Pengukuran Resistansi Sensor Elastis Jalaluddin Jumhur; Bahdin Ahad Badia
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 12, No 1 (2026): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v12i1.15167

Abstract

Penelitian ini menganalisis kinerja metode charging-discharging berbasis Arduino Nano untuk pengukuran resistansi sensor elastis (stretchable sensor) berbahan silikon yang dilapisi grease konduktif, dengan dukungan Universal Tensile Machine (UTM) rancang bangun mandiri sebagai perangkat pengujian elektromekanikal berbiaya rendah. Kebutuhan terhadap instrumen pengujian yang terjangkau dan mudah dimodifikasi menjadi latar belakang penelitian ini, mengingat alat elektromekanikal komersial umumnya memiliki biaya investasi yang sangat tinggi sehingga membatasi aksesibilitas bagi peneliti dengan sumber daya terbatas. Spesimen sensor elastis difabrikasi dari lembaran silikon laboratorium berukuran panjang 80 mm, lebar 10 mm, dan ketebalan 0,58 mm. Pengujian dilakukan selama 30 siklus tarik-lepas pada kecepatan konstan 200 mm/menit. Modul pengukur resistansi dirancang berdasarkan prinsip pembagi tegangan dengan rangkaian resistor bertingkat dari 100 Ω hingga 1 GΩ yang dikombinasikan dengan transistor PNP, sehingga mampu mengukur rentang resistansi yang sangat luas secara adaptif. Kinerja sistem divalidasi terhadap LCR-meter komersial (East Tester) dan menghasilkan koefisien korelasi R² = 0,9003, yang membuktikan bahwa metode charging-discharging berbasis Arduino mampu memberikan pengukuran resistansi yang akurat dan andal dalam skala laboratorium, sekaligus membuka potensi penerapannya pada pengembangan sensor elastis untuk aplikasi soft robotic dan sistem wearable.   
A SYSTEMATIC REVIEW OF MANUAL AND EQUIPMENT-BASED DEMOLITION TECHNIQUES FOR LOW-RISE BUILDINGS: TECHNICAL PERFORMANCE, SAFETY IMPLICATIONS, AND METHOD SELECTION CRITERIA Raja Agung Hasudungan Simanjuntak; Mardis Darwis; Risha Utami; Bahdin Ahad Badia; Fachrizal Cesar Putra
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 12, No 1 (2026): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v12i1.15217

Abstract

Low-rise buildings, broadly defined as structures of one to four storeys, represent the dominant residential and small commercial building typology in many countries, particularly across Southeast Asia, Sub-Saharan Africa, Latin America, and parts of the Middle East. Their demolition—whether for urban regeneration, post-disaster clearance, or individual redevelopment—spans a wide spectrum of approaches, from entirely manual hand-tool operations to fully mechanised excavator-based processes. This systematic review comprehensively examines the principal manual and equipment-based demolition techniques applicable to low-rise buildings, analysing each in terms of technical characteristics, operational requirements, safety implications, material recovery potential, and economic performance. The factors governing method selection—including structural typology, site access constraints, proximity to adjacent structures, project budget, and the presence of hazardous materials—are also critically examined. Two structured summary tables are presented: a comparative performance overview and a multi-criteria decision matrix to guide method selection in practice. The review concludes that no single demolition technique is universally optimal; the most appropriate approach is determined by a combination of site-specific, technical, economic, and regulatory factors. Key knowledge gaps are identified, with particular emphasis on developing-country contexts where low-rise demolition is most prevalent yet least formally regulated. Low-rise buildings, broadly defined as structures of one to four storeys, represent the dominant residential and small commercial building typology in many countries, particularly across Southeast Asia, Sub-Saharan Africa, Latin America, and parts of the Middle East. Their demolition—whether for urban regeneration, post-disaster clearance, or individual redevelopment—spans a wide spectrum of approaches, from entirely manual hand-tool operations to fully mechanised excavator-based processes. This systematic review comprehensively examines the principal manual and equipment-based demolition techniques applicable to low-rise buildings, analysing each in terms of technical characteristics, operational requirements, safety implications, material recovery potential, and economic performance. The factors governing method selection—including structural typology, site access constraints, proximity to adjacent structures, project budget, and the presence of hazardous materials—are also critically examined. Two structured summary tables are presented: a comparative performance overview and a multi-criteria decision matrix to guide method selection in practice. The review concludes that no single demolition technique is universally optimal; the most appropriate approach is determined by a combination of site-specific, technical, economic, and regulatory factors. Key knowledge gaps are identified, with particular emphasis on developing-country contexts where low-rise demolition is most prevalent yet least formally regulated.