Article Per Year (5 Year)
p-Index From 2020 - 2025
0.562
P-Index
This Author published in this journals
All Journal Rekayasa Mesin Jurnal Pendidikan dan Teknologi Indonesia Society: Jurnal Pengabdian Masyarakat
Prasdika, Tegar Oki
Unknown Affiliation
Computer Science & IT Economics, Econometrics & Finance Education Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Analisis Numerik Performa Propulsi Kapal Ikan guna Meningkatkan Efisiensi dan Gaya Dorong Menggunakan Pendekatan CFD (Computational Fluid Dynamics) Prasdika, Tegar Oki; Bahatmaka, Aldias; Kriswanto, Kriswanto; Darsono, Febri Budi
Jurnal Pendidikan dan Teknologi Indonesia Vol 5 No 5 (2025): JPTI - Mei 2025
Publisher : CV Infinite Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jpti.771

Abstract

Indonesia merupakan negara maritim dengan sumber daya perikanan yang melimpah, menghadapi berbagai permasalahan dalam sektor perikanan, khususnya terkait dengan kapal ikan. Beberapa masalah utama termasuk mematuhi regulasi, menggunakan kapal dengan teknologi yang tidak memadai, dan praktik penangkapan ikan yang merusak lingkungan. Penelitian ini bertujuan untuk menghitung nilai torsi dan gaya dorong yang dihasilkan dari baling-baling kapal ikan dalam meningkatkan efisiensi kapal. Metode yang digunakan dalam penelitian ini menggunakan pendekatan CFD (Computational Fluid Dynamics) menghitung dan mensimulasikan pengaruh gaya dorong dan torsi pada baling-baling terhadap sudut kemiringan poros 0°, 30°, 50°, dan 60°. Sebelum melakukan simulasi, proses validasi telah dilakukan dengan nilai error di bawah 5% dalam kondisi lurus tanpa kemiringan. Hasil dari penelitian ini menunjukkan bahwa baling-baling dengan posisi kemiringan 50° memiliki nilai gaya dorong dan torsi yang optimal dengan nilai gaya dorong 55809 N dan torsinya adalah 72111,5 Nm. Hal ini hasil analisis tersebut pada Propeller kapal ikan dapat berdampak besar pada kesejahteraan nelayan, keberlanjutan lingkungan, dan efisiensi operasional. Desain Propeller yang lebih efisien, hambatan hidrodinamis yang lebih rendah, dan efisiensi bahan bakar dapat dicapai melalui hasil simulasi CFD yang optimal.
ANALYSIS OF THE THRUST ON PROPELLER SHAFT ANGLE ON FISHING VESSEL USING CFD Prasdika, Tegar Oki; Bahatmaka, Aldias; Andriano, Kriswanto
Jurnal Rekayasa Mesin Vol. 16 No. 2 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i2.2073

Abstract

Indonesian fishing vessels need a prime mover capable of propelling the vessel forward and backward. According to data from the Ministry of Maritime Affairs and Fisheries, many vessels in Indonesia are spread across various State Fisheries Management Areas of the Republic of Indonesia waters. Most of the ships are in the State Fisheries Management Area of the Republic of Indonesia, 712 area, from a total of 4,989 vessels found in the area. This study aims to determine the thrust and torque values generated from the propeller using Ansys CFD (Computational Fluid Dynamics) software to determine the thrust force on the ship. The method used is the operation of the Ansys Fluent program on a computing device to calculate and simulate the effect of thrust on the propeller against the tilt angle of the shafts at 0°, 5°, 10°, 20°, 30°, 40°, 50°, and 60°. Before simulating, a validation process has been performed with an error below 5% in straight conditions without tilt. The results show propellers with various shaft angles have different thrust and torque values. In the simulation of a 50° tilt angle, the thrust value is 55809 N and the torque is 7211.15 Nm, while at a 60° tilt angle, the thrust value is 54582.4 N and the torque is 6193.81 Nm. Therefore, the propeller tilt position of 50° has the appropriate thrust and torque and can produce the optimal thrust force compared to other angles.
Application of Science and Technology to Improve Productivity, Quality, and Marketing of Mocaf Bolen in Semarang City Bahatmaka, Aldias; Ardiansari, Anindya; Fibriana, Fidia; Hidayat, Indra Nurul; Sari, Linda; Mayangsari , Effelie Dewi; Prasdika, Tegar Oki; Sandi Pratama , Fajar Rizqi
Society : Jurnal Pengabdian Masyarakat Vol. 4 No. 6 (2025): November
Publisher : Edumedia Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55824/0cmdjb05

Abstract

Micro, Small, and Medium Enterprises (MSMEs) make a significant contribution to economic growth, job creation, community empowerment, and the reduction of economic inequality. By 2023, MSMEs' contribution to Indonesia's GDP is projected to reach 61%, equivalent to IDR 9,580 trillion. The MSME sector absorbs 97% of the national workforce, representing approximately 117 million workers. The number of MSMEs also continues to grow each year, reaching 66 million in 2023, an increase from 65 million in 2022 (KADIN). MSME mentoring is a concrete step in supporting national aspirations, including increasing quality employment, encouraging entrepreneurship, developing creative industries, and supporting infrastructure development. In alignment with the SDGs, this PKM activity helps increase village community income and reduce income disparity. Additionally, MSMEs can apply appropriate technology (TTG) developed through university innovations. In this PKM program, the university’s IKU achievements for students and lecturers relate to IKU 2 and IKU 5, aligning with RIRN in the food sector concerning MSME empowerment for local food processing through TTG. The mentoring provides tangible benefits, with Appropriate Technology such as the Automatic Grinding Machine and Automatic Proofer Machine, resulting in a production increase to 500 Mocaf bolen per day from the original 350, reflecting a 42.86% rise. Furthermore, product diversification training was conducted by processing Mocaf flour into higher-value products such as Bolen Mocaf cookies and Mocaf Banana Bread. Digital marketing and business website mentoring were also implemented to strengthen promotional media, enabling products to access broader and potentially global markets
Co-Authors Aldias Bahatmaka Andriano, Kriswanto Anindya Ardiansari Darsono, Febri Budi Fidia Fibriana Hidayat, Indra Nurul Kriswanto Kriswanto, Kriswanto Mayangsari , Effelie Dewi Sandi Pratama , Fajar Rizqi Sari, Linda