A New Energy-Absorbing Device for Motion Suppression in Deep-Sea Floating Platforms

       Abstract: Deep-sea floating platforms are one of the most important large structures for ocean energy exploitation. A new energy-absorbing device named S-shaped Tuned Liquid Column Damper (TLCD) has been invented for the suppression of the horizontal motion and vertical in-plane rotation of a deep-sea floating platform. A conventional tuned liquid column damper has a U-shaped water tunnel to absorb the excessive energy of the main structure. The application of U-shaped dampers in deep-sea floating platforms is difficult due to the restriction of a large horizontal length. A novel S-shaped damper is proposed to retain the same amount of liquid using a shorter S-shaped tunnel. Theoretical and experimental works are conducted and prove that an S-shaped damper needs less than half the horizontal length to provide the same suppression as a U-shaped damper. A coupling calculation model is proposed and followed by the sensitivity analysis. The study demonstrates the applicability of the novel S-shaped damper for the motion suppression in deep-sea floating platforms.

上一条: Basic design for a Submerged Floating Tube Bridge across the Digernessundet

下一条: A new challenge for strait crossings: the immersed inversed cable supported bridge

中国交建 TEC TU 天科院 大连理工大学

Copyright © 2020 中交悬浮隧道工程技术联合研究组_CCCC_SFTJT版权所有 |粤ICP备05060342号-7· 设为首页 · 加入收藏 · 管理系统SFT

粤公网安备 44010502001580号