Vibration damping of thick-plated ship structure: experimental studies

Abstract

Object and purpose of research. This paper discusses thick stiffened plates for ship structures. The purpose is to determine the efficiency of vibration dampers (resonant anti-vibration straps with two reinforced vibration damping coatings installed on them). Subject matter and methods. Measurements of plate vibration spectra with and without vibration dampers stuck to the structure by means of a PVA-based self-adhesive tape. Main results. The study has established that efficient vibration damping of thick-plated structures is possible in principle. Conclusion. The study showed that vibration levels of thick-plated structure in a wide frequency band could be reduced by means of the dampers with the total weight considerably lower than the weight of the target structure itself.