Dynamic Analysis and Experiments on the Offshore Lifting Process of Slender-beam Payload based on the MTAPS

doi:10.3901/JME.2025.24.351

Abstract

Abstract: Offshore single-point hoisting, luffing, and positioning processes for slender-beam payload(SBP) frequently encounter low operational efficiency due to payload sway. To mitigate this problem, a novel multi-tagline anti-sway and positioning system (MTAPS) is proposed. The offshore lifting procedure for the SBP is divided into two stages: single-point hoisting, and luffing and positioning. Dynamic models for these stages are established based on classical Newtonian mechanics and multi-body dynamics. Subsequently, dynamic simulations are performed in Matlab/Simulink for detailed analysis. Both simulations and experiments confirm that the MTAPS effectively eliminates the initial sway angle generated during the single-point hoisting stage of the SBP. Under luffing conditions, relative motion between the payload’s center of gravity and the crane boom head is significantly reduced. During the positioning stage, an average sway reduction ratio exceeding 88% is achieved for the SBP double-pendulum system. Rapid transfer and precise positioning of the offshore SBP become possible through the utilization of this system. Moreover, the proposed dynamic modeling method offers valuable insights for solving engineering challenges in multi-tagline lifting and related applications.

Key words: offshore crane, slender payload, double-pendulum, anti-swing

CLC Number:

U653

SUN Maokai, JIN Guoliang, WANG Shenghai, HAN Guangdong, CHEN Haiquan, SUN Yuqing. Dynamic Analysis and Experiments on the Offshore Lifting Process of Slender-beam Payload based on the MTAPS[J]. Journal of Mechanical Engineering, 2025, 61(24): 351-362.

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