Vibration Control of Jacket Platform Based on Nonlinear-linear Combined Structural Methods
For the issue of persistent and significant vibration response generated by the jacket platform under random wave load,the targeted vibration suppression analysis was conducted.The coupled dynamic models were established for the jacket plat-form with tuned mass damper(TMD),nonlinear energy sink(NES),single mass combined damper,and double mass combined damper.The global search method was used to perform the optimization design.The numerical results indicated that all of the four different vibration reduction methods can suppress the vibration response of the jacket platform,with little difference in vibra-tion reduction efficiency.When the stiffness of the jacket platform changes,the schemes of TMD and double mass combined damper have superior performance.The nonlinear-linear combined control method proposed in this study has a good vibration re-duction effect on the jacket platform.
万方数据
维普
