Analysis and Control of the Coupled Vibration Between the Ship Lift and Ship Chamber

作者：Zhong, Y.; Tu, J. W.^*; Que, G.; Tu, B.; Xu, J. Y.

来源：International Journal of Civil Engineering, 2016, 14(5A): 307-324.

DOI：10.1007/s40999-016-0041-2

• Ship lift
• Ship chamber
• Coupled vibration
• Viscous liquid damper
• Magneto-rheological fluid damper

Coupled vibrations may occur between ship lift structure and the ship chamber during seismic process due to the ship chamber being hung at the roof of the ship lift. An investigation is carried out to explore the possibility of using different devices to connect the ship lift towers and the ship chamber to prevent the coupled vibrations. A three-dimensional shell finite element model is established, and then simplified into a three-dimensional truss finite element model through dynamic equivalent principle. And the numerical model of coupled vibration analysis is formed through static condensation, calculating the coupled vibration response between the ship lift structure and the ship chamber under five connection conditions: no connection, rigid connection, spring, viscous liquid damper and magneto-rheological fluid damper. The result shows that no connection and rigid connection between them are both inadvisable; the magneto-rheological fluid damper provides better vibration damping effect if suitable semi-active control strategy is applied, in comparison with passive control devices.

• 出版日期2016-7
• 单位武汉理工大学