Articulated lifting system modeling based on dynamics of flexible multi-body systems

作者：Xu Yan^*; Feng Ya Li; Zhang Wen Ming

来源：China Ocean Engineering, 2007, 21(4): 715-722.

• articulated lifting system
• flexible multi-body dynamics
• bending deformation
• dynamics modeling

In lifting sub-system of deep-sea mining system, spherical joint is used to connect lifting pipes to replace fixed joint. Based on Dynamics of Flexible Mufti-body systems, the mechanics model of articulated lifting system is established. Under the four-grade and six-grade oceanic condition, dynamic responses of lifting system are simulated and experiment verified. The simulation results are consistent with experimental ones. The maximum moment of flexion is 322 kN-m on the first pipe under six-grade sea condition. It is seen that the articulated connection can reduce the moment of flexion. The bending deformation of pipe center is researched, and the maximum is 0.000479 m on the first pipe. Deformation has a little effect on the motion of system. It is feasible to analyze articulated lifting system by applying the theory of flexible mufti-body dynamics. The articulated lifting system is obviously better than the fixed one.

• 出版日期2007
• 单位北京科技大学