Experimental and Bibliometric Analysis of Truncated Cone Fouling Suppression Device for Vortex-Induced Vibration Control in Marine Structures

Noor Idora Mohd Sukarnoor (Universiti Utara Malaysia)
Wan Mohd Norsani Wan Nik (Universiti Malaysia Terengganu)
Ahmad Hussain (DHA Suffa University)
Lee Kee Quen (Universiti Teknologi Malaysia)
Nur Najahatul Huda Saris (Universiti Teknologi Malaysia)
Suriani Mat Jusoh (Universiti Malaysia Terengganu)
Fakhratul Ridwan Zulkifli (Universiti Malaysia Terengganu)

ASEAN Journal for Science and Engineering in Materials
Vol 5, No 2 (2026): AJSEM: Volume 5, Issue 2, September 2026

Vortex-induced vibration (VIV) poses a critical threat to the integrity and fatigue life of marine and offshore structures. This study evaluates the effectiveness of a truncated cone fouling suppression device in reducing VIV of a low-mass ratio circular cylinder. Experiments were performed in a circulating water flume at Reynolds numbers ranging from 8,000 to 45,000, using various surface coverage ratios. The vibration amplitude and frequency responses were analyzed to determine suppression performance. Results showed that the device reduced oscillation amplitude by up to 68% within the lock-in region, with optimal suppression observed at 25-50% coverage. This indicates that partial surface modification enhances flow–structure interaction and weakens wake coherence. Furthermore, a bibliometric analysis was integrated to identify research trends and gaps in passive vibration control. The present approach provides both scientific and practical insights for developing low-drag, efficient, and sustainable VIV mitigation strategies in marine engineering.