Article Per Year (5 Year)
p-Index From 2020 - 2025
1.745
P-Index
This Author published in this journals
All Journal Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat International Journal of Marine Engineering Innovation and Research International Journal of Metacentre
Asis, Muhammad Akbar
Department Of Naval Architecture University Of Hasanuddin
Automotive Engineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Transportation

Published : 8 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 8 Documents
Search

 1 
Effect of Bilge Keels Position On Roll Motion Performance Of Traditional Wooden Boat Muhammad Akbar Asis; Daeng Paroka; Syamsul Asri; Muhammad Anjas Syam
International Journal of Marine Engineering Innovation and Research Vol 5, No 3 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (536.18 KB) | DOI: 10.12962/j25481479.v5i3.7728

Abstract

The most ship accidents occurred on size between 35GT and 500GT, including traditional wooden boats. The accidents were dominated by capsizing due to bad weather. Therefore the safety of traditional wooden boats needs to be improved. This paper discusses the position of bilge keels and their impact on the roll motion performance of an Indonesian traditional wooden boat. The roll damping is determined by a roll decay test with three different positions of bilge keels, namely 15 degrees, 30 degrees, and 45 degrees. The roll amplitude is determined in the frequency domain by solving the uncoupled nonlinear roll motion equation with an effective wave slope coefficient calculated using the simplified Froude-Krylov assumption of roll exciting moment. The bilge keels position with the angle of 15 degrees reduced the roll amplitude of 18% while the position with an angle of 30 degrees decreases the roll amplitude by 7% of roll amplitude without bilge keels. The bilge keels position with an angle of 45 degrees reduced the roll amplitude by 2% of those without bilge keels. The natural roll period was not significantly affected by the bilge keels position. The bilge keels position with an angle of 15 degrees is the most effective position to reduce the roll amplitude.
Pelatihan Pengujian Inclining (Inclining Test) Kapal Kayu dengan Adanya Penambahan Panjang Kapal dan Berlunas Baja Bagi Pengrajin Kapal di Kabupaten Takalar Mansyur Hasbullah; Suandar Baso; Lukman Bochary; Rosmani -; Ganding Sitepu; Syamsul Asri; Wihdat Djafar; Andi Dian Eka Anggriani; A Ardianti; Muhammad Akbar Asis
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 4 No 2 (2021): Community Empowerment through Health Awareness in the New Normal
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v4i2.217

Abstract

Transformation in ship geometry and the development of alternative materials to replace wood will certainly have an impact on the weight of construction, these changes will certainly affect the center of gravity and ship draft, such as wooden ships with steel frames which are made by wooden ship craftsmen in Takalar Regency, after being replaced with steel frame, laden increases with an increase in the draft will affect the hydrostatic characteristics of the ship and the ship's center of gravity, the change, of course, has an impact on the stability of the ship, so an inclining test is needed, so that wooden ship craftsmen can understand the relationship between ship geometry and ship weight. Therefore, in an effort to increase the knowledge of wooden ship craftsmen, inclining test training is a solution and is proposed for community service activities with method of presenting material and practicing directly on ships, the results of this training craftsmen are able to understand the emphasis on steel-constructed wooden ships in relation to life safety at sea and skilled in inclining to test.
Sosialisasi Pentingnya Integritas Struktur Kapal Kayu Dalam Penjaminan Keselamatan : Masyakarat Sasaran Kelompok Pengrajin Kapal Kayu di Takalar Hamzah Hamzah Hamzah; Ganding Sitepu '; Andi Ardianti .; Mansyur Hasbullah .; Rosmani .; M. Rizal Firmansyah .; Wahyuddin .; Muhammad Akbar Asis .
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 5 No 1 (2022): Kebersamaan dalam Membangun Masyarakat Tangguh dan Gesit
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v5i1.230

Abstract

The operational activities of wooden ships are classified as very high so that the production of wooden boats still survives today, one of the groups of craftsmen in Takalar Regency is the "TORANI" group which specializes in producing wooden ships of 10 GT to 30 GT. High wooden ship operation activity, must always be improved quality in ensuring the safety of the ship improve the quality of ships in ensuring ship safety, the problems currently faced by partners are ship structure damage due to understanding of connection techniques, selection of ship construction dimensions and the use of bolts and pegs are not yet weak because the construction method is still based on experience. Based on observations in the field, it can be seen that there are many weaknesses made by craftsmen or builders in the connection of structures and also the selection or determination of the dimensions of the structure for example the placement of supports and beams are not fully in accordance with the global load and local loads of the ship structure, another weakness is the selection of the type of connection and the determination of dimensions not in accordance with existing regulations. To be able to provide an understanding, craftsmen need to be given socialization with the target craftsmen being able to recognize the importance of construction strength in ensuring ship safety, being able to use techniques for connecting construction components that meet the criteria and standards, selecting dimensions that match the criteria and standards and the correct bolts and pegs in component connection. wooden boat construction. The results obtained that the level of understanding and skills of the wooden ship craftsmen who received this training was very good. This is evidenced by the ability of the craftsmen to be able to apply construction connection methods
Pelatihan Tarik Kapal Ikan Ukuran Kecil untuk Penentuan Tahanan dan Daya Kapal di Kabupaten Takalar Suandar Baso; Muhammad Akbar Asis; Rosmani Rosmani; Lukman Bochary; Mansyur Hasbullah; A.Dian Eka Anggriani
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 6 No 1 (2023): Kesadaran Teknologi untuk Mengatasi Permasalahan Kemasyarakatan
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v6i1.365

Abstract

The ship's resistance is important to know because correlates strongly to the power engine needs to reach the desired speed. One method can be applied on a small ship with full-scale free running within a ways pull small ship with other small ship for measure resistance value occurrence with scale equipment on the place between the ropes of the ship being towed and tugged. This method is very easy to apply to small ships. In general, manufacturers of traditional small ships do not carry out the full-scale test because they do not know the principles for determining engine power.
A Concept Design of Training Ship in Indonesia Waterway: Toward A Type of Passenger-Container Vessel Rusi, Rusnaedi; Fitriah, Rifkah; Pettarani, Amrin; Rusi, Sudarman; AM, Andi Rachmianty; Baso, Suandar; Asis, Muhammad Akbar
International Journal of Metacentre Vol. 2 No. 2 (2022): December 2022
Publisher : Naval Architecture Departement, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In the future, the seafaring profession will face some tough challenges. In order to address the challenges, the Maritime Vocational Education (MVE) is required to produce graduates with appropriate competencies related to the perspective of international trade in the shipping sector based on the Standards of Training, Certification and Watchkeeping for Seafarers (STCW). In order to improve the skills of students, a training ship is needed by maritime vocational education as a real practice for students. This study describes the concept of training ship design for maritime vocational education with consideration of Indonesian waters. The design concept starts with selecting the type of training ship, determining the capacity of the training ship, determining the main dimensions of the training ship design. Making line plans, making General Plan Drawings, calculating ship resistance taking into account Indonesian waters and determining the driving force of the main engine of the training ship as well as calculating the stability of the training ship. This design was applied to the AMI Makassar Maritime Polytechnic as a case study. The results showed that the type of Passenger-Container Vessel. The capacity of the training ship is around 150 students with a container load capacity of 8 TEUs. The main dimensions of the training ship design are the length between perpendicular (Lbp), width (B), height (H), and draft (T) respectively 69.23 m, 12.00 m, 5.50 m, and 2.54 m with Gross Tonage and ship engine power of 1.404,84 GT and 1090,7 Kwatts. The main dimensions of the training ship design are also corrected with the main dimension ratio parameters, geometric shape coefficients, weight and initial static stability.The seafaring profession will face some tough challenges today and in the future. Accordingly, Standards of Training, Certification and Watchkeeping for Seafarers (STCW)
Study of the Impact of Biofouling on Ship Resistance Using Autodesk CFD Rosmani, Rosmani; Baso, Suandar; Saputra, Heri; Asis, Muhammad Akbar; Bochary, Lukman; Chalil, Sopyan
International Journal of Metacentre Vol. 3 No. 1 (2023): June 2023
Publisher : Naval Architecture Departement, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Biofouling, the accumulation of marine organisms on ship hulls, poses a substantial challenge in the maritime industry. Over time, organisms like algae and molluscs adhere to hull surfaces, creating a biofouling layer that disrupts water flow and increases ship resistance. This study investigates the effects of biofouling on ship resistance and fluid flow patterns along the hull. Data collection involved measuring key ship dimensions, analyzing ship lines plan drawings, and measuring biofouling thickness. Autodesk Computational Fluid Dynamics (CFD) software was used to calculate ship resistance and analyze fluid flow along the hull. Two conditions were compared: a hull without biofouling and a biofouled hull. At a speed of 1.220 m/s, the biofouled ship model exhibited a resistance of 3,739 N, while the clean hull had a resistance of 3,280 N, indicating a 13.642% resistance increase due to biofouling. Fluid flow analysis revealed complex flow patterns along the biofouled hull, potentially reducing operational efficiency. These findings underscore the importance of biofouling prevention and control measures in minimizing resistance and maintaining operational efficiency. A deeper understanding of fluid flow characteristics related to biofouling allows ship operators and companies to make informed decisions about vessel maintenance, reducing environmental impacts and operational costs. This research contributes to addressing biofouling challenges in the maritime industry.
Experimental Study on Bow Slamming of a Ship Andi Dian Eka Anggriani; Baso, Suandar; Bochary, Lukman; Rosmani; Asis, Muhammad Akbar; Mubarak, Muh Miftach Aqsa; La Ode Gaffar
International Journal of Metacentre Vol. 3 No. 1 (2023): June 2023
Publisher : Naval Architecture Departement, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study discusses about the critical issue of slamming phenomena in ship design, emphasizing its impact on ship safety, environmental concerns, and fuel consumption. The drop tests has been used to investigate bow slamming pressures and internal strain at various drop angle. The results indicated peak pressures at different sensors, with higher drop angles resulting in increased impact pressures and internal strains due to augmented velocity, angular momentum, surface area contact, hydrodynamic effects, and gravitational forces.
Socialization of Fishing Boat Safety Standards and Procedures for Fishermen at PPI Beba, Takalar Regency Djafar, Wihdat; Djalante, Abd. Haris; Chairunnisa, A. Sitti; Idrus, Misliah; Clausthaldi, Fadhil Rizki; Asri, Syamsul; Ardianti, Andi; Asis, Muhammad Akbar; Wahyuddin, Wahyuddin; Fitrah, Rifkah
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 7 No 2 (2024): Kolaborasi yang Kuat untuk Kekuatan Kemasyarakatan
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v7i2.533

Abstract

Fishing activities by fishermen in Indonesia have high-risk characteristics known as 3D: dangerous, dirty, and challenging. This Community Service (PkM) activity aims to increase fishermen's knowledge at the Beba Fish Landing Base (PPI), Takalar Regency, regarding safety standards and procedures for fishing boat shipping. Through outreach activities, fishermen are provided information on safety equipment, shipping safety procedures, work safety, and occupational health. The socialization method uses brochure media with an interactive approach for each individual, including pre-test, delivery of material, and post-test to evaluate increased knowledge. The survey results showed that before the socialization, the level of fishermen's knowledge was deficient, with only 13% – 39% of the 23 fishermen understanding safety standards. After socialization, there was a significant increase of 57% – 74% of fishermen showed better understanding (increased 35% – 43%). Based on the results of this PkM activity, ongoing outreach needs to be carried out to increase awareness and implement safety procedures among fishermen to reduce the risk of accidents at sea.
Co-Authors A Ardianti A.Dian Eka Anggriani AM, Andi Rachmianty Andi Ardianti . Andi Dian Eka Anggriani Ardianti, Andi Asri, Syamsul Chairunnisa, A. Sitti Chalil, Sopyan Clausthaldi, Fadhil Rizki Daeng Paroka Djafar, Wihdat Djalante, Abd. Haris Fitrah, Rifkah Fitriah, Rifkah Ganding Sitepu Ganding Sitepu ' Hamzah Hamzah Hamzah La Ode Gaffar Lukman Bochary M. Rizal Firmansyah . Mansyur Hasbullah Mansyur Hasbullah Mansyur Hasbullah . Misliah Idrus Mubarak, Muh Miftach Aqsa Muhammad Anjas Syam Paroka, Daeng Pettarani, Amrin Rosmani Rosmani - Rosmani . Rosmani Rosmani Rusi, Rusnaedi Rusi, Sudarman Saputra, Heri Suandar Baso Syam, Muhammad Anjas Syamsul Asri Syamsul Asri Syamsul Asri Wahyuddin . Wahyuddin Wahyuddin