Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal IJOCE (International Journal of Offshore and Coastal Engineering) International Journal of Marine Engineering Innovation and Research
Sujantoko Sujantoko
Unknown Affiliation
Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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

Found 2 Documents
Search

 1 
Wave Transmission Analysis on Hexagonal Shape Floating Breakwater Sujantoko Sujantoko; Haryo Dwito Armono; Wisnu Wardhana; Dedi Kurniawan
International Journal of Offshore and Coastal Engineering (IJOCE) Vol 5, No 2 (2021)
Publisher : DRPM (Direktorat Riset dan Pengabdian kepada Masyarakat) ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j2580-0914.v4i4.10934

Abstract

Coastal areas have many benefits for activities, such as port construction, fishing activities, recreation areas, resource utilization, alternative energy-producing places, etc. However, many factors limit this use due to water wave activity, such as storm surges and the potential for tsunamis. These factors also cause abrasion and coastal erosion that can damage the coastal environment. To overcome this problem, it can be done by building a coastal protective structure, one of which is a floating breakwater. In this study, analysis of wave transmission on a hexagonal floating breakwater will be carried out to determine the effectiveness of its performance. The wave transmission test on the floating breakwater was carried out with variations of irregular waves (Jonswap spectrum) and mooring angles. The position of the wave probe is set at 100 cm and 220 cm behind the structure. The largest transmission coefficient occurs at a mooring angle of 30o in both scenario 1 and scenario 2. The smallest transmission coefficient value is at an angle of 60o in both scenarios of wave probe placement. The plotting results show that the transmission coefficient is directly proportional to the period and height of the incident wave and vice versa the transmission coefficient is inversely proportional to the steepness of the wave
The Effect of Structural Configuration on the Effectiveness of Double Pontoon Floating Breakwater: A Review Muhammad Salman; Sujantoko Sujantoko; Haryo Dwito Armono
International Journal of Marine Engineering Innovation and Research Vol. 11 No. 2 (2026)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v11i2

Abstract

The need for flexible and environmentally friendly coastal protection has driven the development of floating breakwaters (FBs), particularly the double pontoon floating breakwater (DPFB), which offers adaptive capabilities to varying wave conditions. Despite their widespread application, the effectiveness of DPFBs remains highly dependent on structural configuration, highlighting the need for a comprehensive literature review to understand wave attenuation mechanisms and the influence of design parameters on the transmission coefficient (KT) and reflection coefficient (KR). This review examines the fundamental principles of wave structure interaction for floating systems, energy dissipation mechanisms, and analyzes four key parameters that influence system performance: pontoon geometry, porosity, the presence or absence of inter-pontoon connectors, and gap spacing. The findings indicate that pontoon geometry is the dominant factor governing the initial hydrodynamic response, while porosity plays a significant role in creating effective internal energy dissipation. Gap spacing controls wave interference and resonance, whereas connector use affects the system's dynamic stability, though comparative studies on this aspect remain limited. Overall, wave attenuation effectiveness is not determined by a single parameter but by the combined interactions among these four aspects in influencing KT and KR values. This review emphasizes the need for further research on multi-parameter evaluation and the development of more realistic hydrodynamic models to achieve optimal, adaptive DPFB configurations across diverse marine environments.
Co-Authors Dedi Kurniawan Haryo Dwito Armono Haryo Dwito Armono Muhammad Salman Wisnu Wardhana