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The Optimal Design of TMD for Offshore Structures |
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| Authors: | LI Huajun Sau Lon James HU Tomotsuka TAKAYAMA Professor College of Engrg. Ocean University of Qingdao Qingdao P. R. China. Professor Dept. of Ocean Engrg. University of Rhode Island RI. Professor Disaster Prevention Res. Inst. Kyoto Univ. Gokasho Uji Kyoto - Japan. |
| Affiliation: | LI Huajun Sau Lon James HU Tomotsuka TAKAYAMA Professor,College of Engrg.,Ocean University of Qingdao,Qingdao 266003,P. R. China. Professor,Dept. of Ocean Engrg.,University of Rhode Island,RI02881. Professor,Disaster Prevention Res. Inst.,Kyoto Univ.,Gokasho,Uji,Kyoto 611-0011,Japan. |
| Abstract: | This paper presents the optimal design procedure of Tuned Mass Damper (TMD) for reducing vibration of an actual steel jacket offshore platform excited by random wave loading. In this study, a frequency domain is taken. The force on the structure is determined by use of the linearized Morison equation for an input Power Spectral Density (PSD) of wave elevation. The sensitivity of optimum values of TMD to characteristic parameters of random wave spectrum is analyzed. An optimized TMD design for the modeled platform is given based on design conditions and the findings of the study. |
| Keywords: | tuned mass damper design Morison equation power spectral density offshore structures |
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