The research described in this paper involves a method to mitigate the vibration of an offshore structural system in the marine environment when subjected to the in-plane wave forces. The method introduced include a practical application for the viscoelastic material to the offshore structural system, and the analytical technique to evaluate the structural responses when the system is incorporated with damping devices. The viscoelastic materials applied here were tested and verified that they have high energy absorption capacity. In the analysis, the applied wave forces are based on the fifth-order Stokes wave theory and Morrison equation for small body and the computation method is based on Newmark method for nonlinear system. Results of the vibration responses for the system with added damping devices are presented and compared to the responses of structures of the traditional design. It was observed that the effect of the vibration mitigation was significant and the dynamic performance of the offshore structural system were greatly improved when the damping devices were applied.
Vibration mitigation of structures in the marine environment
Schwingungsminderung bei Strukturen unter maritimen Einflüssen
Ocean Engineering ; 23 , 8 ; 741-759
1996
19 Seiten, 20 Bilder, 21 Quellen
Article (Journal)
English
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