Article Per Year (5 Year)
p-Index From 2021 - 2026
0.702
P-Index
This Author published in this journals
All Journal Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan Jurnal Techno Bahari Indonesian Journal of Maritime Technology or abbreviated (ISMATECH)
Wahidah, Jusma
Unknown Affiliation
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
Seakeeping Performance and Passenger Comfort Assessment of a 300 GT Ro-Ro Ferry Using RAO, MSI, and MII Analyses Wahidah, Jusma; Ariani, Vidya Rezeki; Alamsyah; Wulandari, Amalia Ika; Suwedy, Wardina; Sitorus, Chris Jeremy Verian; Hariyono; Kustiwansa, Harlian; Agusty, Cindy Lionita; Syam, Muhammad Anjas
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 6, Number 3, November 2025 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

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

Abstract

This study examines the motion response and onboard comfort of a Ro-Ro ferry under varying wave directions and speeds using the Response Amplitude Operator (RAO), Motion Sickness Incidence (MSI), and motion-induced interruptions (MII) as evaluation parameters. Simulations were conducted using Maxsurf Motion software with wave heights of 3 m and 3.5 m and encounter angles of 0° (following seas), 90° (beam seas), and 180° (head seas) at vessel speeds of 0 and 12 knots. The MSI was assessed using both simulation results and empirical calculations, whereas the MII was evaluated according to the ISO 2631 standards at three onboard locations: the passenger, navigation, and vehicle decks. The RAO results indicate that the vessel met the NORDFORSK (1987) motion criteria under following and head seas but exceeded the roll limits in beam seas. The MSI values remained within the moderate comfort range, except under head seas at 12 kn, where the values approached the alert thresholds. The MII remained within acceptable levels under most conditions, although probable interruption levels were observed on the passenger and vehicle decks during beam sea conditions. Overall, the findings emphasize that wave direction and vessel speed significantly influence motion-induced discomfort and operational performance, underscoring the importance of optimizing route planning and speed to improve passenger safety and seakeeping performance on roll-on/roll-off ferries.
Analisis Dinamika Kapal Ikan Berlambung Katamaran terhadap Fenomena Bottom Slamming dan Deck Wetness Sitorus, Chris Jeremy Verian; Alamsyah; Setiawan, Wira; Anjas Syam, Muhammad; Lionita Agusty, Cindy; Wahidah, Jusma; hariyono; Kustiwansa, Harlian; Syahab, Husein; Wahyu Pratama, Fernanda; Bahri, Irham
Techno Bahari Vol 12 No 1 (2025): Maret
Publisher : Politeknik Negeri Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52234/tb.v12i1.346

Abstract

Kurangnya perhatian terhadap aspek keselamatan dalam desain kapal ikan, di mana pembuat kapal lebih berfokus pada hasil tangkapan. Analisis bottom slamming dan deck wetness diperlukan untuk menghindari kondisi berbahaya saat menghadapi cuaca buruk. Nilai RAO(Response Amplitude Operator) kapal ikan katamaran perlu untuk diketahu dengan variasi sudut gelombang 0°, 90°, 135°, dan 180° serta menghitung probabilitas deck wetness dan bottom slamming. Perhitungan RAO dilakukan menggunakan metode optimasi dengan perangkat lunak Maxsurf pada variasi muatan 25% DWT ,50% DWT, dan 100% DWT. Hasil penelitian menunjukkan bahwa amplitudo heave tertinggi terjadi pada kondisi 100% DWT, kecepatan 6,45 knot, dan sudut gelombang 0°, sebesar 0,131 meter. Amplitudo pitch tertinggi adalah 2,02 derajat pada kondisi yang sama, sedangkan amplitudo roll tertinggi terjadi pada 50% DWT, kecepatan 6,45 knot, dan sudut gelombang 90°, sebesar 3,43 derajat. Probabilitas deck wetness sebesar 0,24% dan bottom slamming sebesar 0.0000000014996%, keduanya telah memenuhi standar NORDFORSK 1987. Kata Kunci: Bottom Slamming ; Deck Wetness; DWT ; Probabilitas; RAO
Technical and Operational Analysis of Marine Airbag-Assisted Ship Docking Puspa Ningrum, Ainun Chandra; Yusril Syam, Muh; Maulidah, Hikmah; Wahidah, Jusma; Jeremy Verian Sitorus, Chris
Indonesian Journal of Maritime Technology Vol. 3 No. 2 (2025): Volume 3 Issue 2, December 2025
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

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

Abstract

Ship docking operations require careful planning and precise implementation to ensure safety and operational efficiency. One widely applied method in shipyard practice is the use of marine airbags to support vessels during docking and undocking processes. This study analyzes the application of a marine airbag-assisted docking system for the barge BG. Liana at PT. Jhonlin Marine Trans using an analytical and field-based approach. The analysis focuses on determining the required number of airbags, evaluating load distribution, and identifying factors contributing to airbag failure during docking operations. Vessel principal dimensions and marine airbag specifications were used as primary input parameters, while field observations were conducted to assess actual operational conditions. The results indicate that a minimum of 21 marine airbags is required to ensure adequate load sharing and structural safety; however, only seven airbags were deployed in practice, leading to excessive load concentration and increased risk of airbag failure. The failure analysis demonstrates that the observed damage was predominantly caused by controllable operational factors, including inadequate airbag quantity, improper placement, pressure inconsistencies, and runway conditions. These findings highlight the importance of strict compliance with analytical planning and operational procedures to enhance safety and reliability in marine airbag-assisted docking operations.
Strategic Human Capital Development for Maritime Infrastructure through Enhanced CAD Competency in Vocational Education Pratama, Fernanda Wahyu; Wulandari, Amalia Ika; Syam, Muhammad Anjas; Wahidah, Jusma; Agusty, Cindy Lionita; Syahab , Husein
Indonesian Journal of Maritime Technology Vol. 3 No. 2 (2025): Volume 3 Issue 2, December 2025
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v3i2.8481886

Abstract

The Indonesian maritime industry faces a critical human capital paradox, where a surplus of vocational graduates exists alongside persistent difficulty among shipyards in recruiting personnel capable of executing modern Product-Oriented Work Breakdown Structure and digital drafting workflows. This study investigates this disconnect through the pilot implementation of an Applied CAD for Maritime Engineering curriculum at a partner vocational high school, SMKN 5. Using a Guided Replication methodology, the intervention bridged the gap between theoretical software knowledge and industrial application by emphasizing parametric modeling and design-for-production logic. The results show that student aptitude is high, as evidenced by the rapid acquisition of three-dimensional modeling skills, while the national vocational infrastructure remains critically unprepared. The study identified a significant technological readiness gap in which existing school hardware was unable to support industry-standard software, requiring external technical intervention. These findings indicate that closing the maritime skills gap requires more than curriculum reform alone, but also necessitates fundamental improvements in school computing infrastructure and a pedagogical shift from software-centric instruction toward production-centric learning. This research proposes a scalable framework for integrating industrial competencies into vocational education to support the long-term development of Indonesia’s maritime workforce.
Co-Authors Agusty, Cindy Lionita Alamsyah Anjas Syam, Muhammad Ariani, Vidya Rezeki Bahri, Irham Hariyono, Hariyono Jeremy Verian Sitorus, Chris Kustiwansa, Harlian Lionita Agusty, Cindy Maulidah, Hikmah Pratama, Fernanda Wahyu Puspa Ningrum, Ainun Chandra Sitorus, Chris Jeremy Verian Syahab , Husein Syahab, Husein Syam, Muh Yusril Syam, Muhammad Anjas Wahyu Pratama, Fernanda Wardina Suwedy Wira Setiawan wulandari, amalia ika