This paper presents a simplified approach to analyze the dynamic response of offshore jacket platform based on Timoshenko beam theory. In the study, the jacket platform is simulated as a non-uniform cantilever beam structure subjects to random waves. The assessment of dynamic performance is based on the power spectral densities, variances and spectral moments due to wave spectrum. A combination of Pseudo-excitation and Ritz method is proposed and adopted, such as the dynamic characteristics of the jacket platform can be solved more efficiently without a need to examine the modes of vibration. The proposed analytical method also provides a more straightforward solution to determine the dynamic response of offshore jacket platforms that meet the required level of engineering practice for preliminary design.
Han, Xiaoshuang; Qiao, Weiliang; and Zhou, Bo
"ASSESSMENT OF DYNAMIC RESPONSE OF OFFSHORE JACKET PLATFORMS SUBJECTS TO RANDOM WAVES,"
Journal of Marine Science and Technology: Vol. 28:
3, Article 2.
Available at: https://jmstt.ntou.edu.tw/journal/vol28/iss3/2