Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Journal of Innovative and Creativity
Amalia Harmin
Universitas Samudra
Aerospace Engineering Automotive Engineering Education Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Social Sciences Other

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Analisis Hasil Pengamatan Instrumentasi Untuk Menilai Kondisi Bendungan Keuliling Marini Bravikawati; Arisna Fauzia; Nurkhairunnisa Siregar; Amalia Harmin; Tjut Rizqi Maysyarah Hadi
Journal of Innovative and Creativity Vol. 5 No. 2 (2025)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v5i2.2821

Abstract

Bendungan merupakan konstruksi yang dibangun untuk penyediaan pasokan air. Bendungan Keuliling berperan penting dalam pemenuhan kebutuhan air. Selain memberikan manfaat, bendungan juga memiliki potensi risiko yang perlu diantisipasi. Untuk itu, diperlukan analisis hasil pengamatan instrumentasi pada Bendungan Keuliling yang berdampak pada pemeliharaan bendungan. Penelitian ini menggunakan data primer dan sekunder sebagai dasar analisis hasil pengamatan instrumentasi. Tujuan analisis adalah untuk menentukan nilai komponen hasil pengamatan instrumentasi menggunakan indeks kondisi pada Bendungan Keuliling. Penilaian dilakukan dengan mengidentifikasi kerusakan pada komponen bendungan, lalu dilakukan penilaian skor indeks kondisi sesuai dengan tingkat kerusakan yang ditemukan. Hasil analisis menunjukkan bahwa indeks kondisi untuk komponen hasil pengamatan instrumentasi bendungan berada pada nilai 4, yang termasuk dalam kategori kerusakan ringan. Nilai ini menggambarkan kondisi terkini komponen hasil pengamatan instrumentasi bendungan dan menjadi acuan penting dalam melakukan pemeliharaan guna menjaga pemeliharaan bendungan.
Evaluasi Kinerja Mesin CNC Laser Termodifikasi pada Proses Pemotongan Akrilik Presisi Bukhari Kasim; Azwar Azwar; Mahmud Mahmud; Amalia Harmin; Muhammad Razi; Nurdan Nurdan
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.v12i1.15207

Abstract

Computer Numerical Control (CNC) technology innovation has become a core pillar in the manufacturing industry due to its ability to produce high-precision products with optimal time and cost efficiency. This research aims to modify and test the performance of a CNC laser machine, specifically in the cutting process of Polymethyl Methacrylate (PMMA) or acrylic material, to identify the most effective working parameter conditions. The selection of acrylic material is based on its widespread use across various industrial sectors and the need for maximum cutting quality. The research methodology involved two main test series: kerf width analysis and number of passes (through-cutting) analysis. The kerf width testing was conducted by varying the laser focal distance (5mm, 10mm, 20mm) and the combination of power and feeding speed. Meanwhile, the number of passes testing was performed under constant conditions of 100% power and 25mm/min feeding, while varying the acrylic thickness (2mm, 3mm, 5mm) and acrylic color (clear, blue, black). The results show that focal distance is the dominant parameter determining the kerf width range, with 5mm producing the narrowest kerf (0.08mm–0.18mm). As the focal distance increases, the resulting kerf also widens. In terms of cutting efficiency, the Number of passes is directly proportional to material thickness. Intriguingly, clear acrylic was the most difficult to cut (requiring the highest number of passes, up to 4 passes for 5mm), indicating the lowest laser energy absorption under the tested conditions. Conversely, colored acrylic (Black and Blue) showed higher efficiency. This data is essential as a basis for optimizing the performance of CNC Laser machines to produce accurate and efficient acrylic products.
Co-Authors Azwar Yunus Bukhari Kasim Fauzia, Arisna Mahmud Marini Bravikawati Muhammad Razi Nurdan Nurdan Nurkhairunnisa Siregar Tjut Rizqi Maysyarah Hadi