Impact of Cruise Ship Vibration and Noise Environment on Interior Decoration Structures and Corresponding Countermeasures

Abstract

Against the backdrop of China's rapidly growing large cruise independent construction industry, vibration and noise control remains a core technical challenge for domestic self-built cruise ships. As integrated mobile spaces carrying thousands of passengers, cruise ships generate continuous complex dynamic vibrations from main engines, propellers, auxiliary machinery, and hydrodynamic forces. These vibrations transmit through the hull steel structure to interior outfitting, coupling with airborne noise, reducing passenger comfort, and causing fatigue damage, structural loosening, and decorative cracking. This study breaks through traditional single-framework material noise reduction approaches, constructing a comprehensive research system covering vibration generation mechanisms, hull structural dynamic transmission, interior outfitting coupling responses, and full-chain mitigation solutions. Based on sea trial data from China's first domestically built large cruise ship Adora Magic City, typical interior fault modes under long-term vibration are identified, modular installation system performance is compared, and integrated countermeasures—including source control, transmission path blocking, structural optimization, and full-lifecycle health monitoring—are proposed. Results demonstrate that the optimized system controls passenger cabin noise below 42 dB(A), meeting IMO Resolution A.468(XII) standards, and reduces interior outfitting fatigue damage by over 70%. These findings provide critical technical support for subsequent domestic cruise batch construction, improving passenger experience, extending interior system service life, and enhancing China's international competitiveness in independently built large cruise products.