科研之友
微信
新浪微博
Facebook
分享链接
摘要
The paper focuses on the vibration reduction effect of a viscoelastic pounding tuned mass damper(PTMD) on offshore jacket platforms and its parameters optimization. The damping ratio and gap ratio are the key parameters of the PTMD. After its parameters optimization, the PTMD can sharply suppress the offshore jacket platform's vibration, from the angle of whether displacement or acceleration. In addition, it's more efficient than a TMD. A number of simulations testify the control device is reasonable and effective, besides it is of strong robustness. The PTMD's effective frequency range is twice as much as that of the TMD, which indicates the PTMD has better control performance. The requirement of the mass installation space is only 13.7% of that of the TMD, while the mass displacement is decreased by 75.3%, which can meet the space requirements in platforms.
