深海扬矿系统的柔性多体系统动力学仿真

为研究深海扬矿系统动力学特征, 开展了扬矿系统柔性多体系统动力学仿真研究。基于柔性多体系统动力学理论, 提出了深海扬矿管道柔性多体建模方法。对经典的梁受迫振动问题进行了动力学仿真并与解析解进行了对比, 验证了方法的正确性。针对实验室模拟系统建立了深海扬矿系统柔性多体系统动力学模型并进行了动力学仿真研究, 结果表明管道形态、应力等仿真结果与实验结果符合较好。本研究可为深海扬矿系统动力学研究提供参考和依据。

Simulation of Flexible Multibody Dynamics for Deep-Sea Lifting System

In order to study dynamics of the lifting system in deep-sea mining, simulation of flexible multibody dynamics (MFBD) for the deep-sea lifting system was conducted. Based on dynamics theory of flexible multibody system, a modeling method was proposed for the flexible multibody in the deep-sea lifting system. The dynamic simulation of vibration of a beam under force compared with analytical solutions, verified the accuracy of this modeling method. Based on the laboratory simulation, a dynamic model was created for flexible multibody in deep-sea lifting system for studying dynamic simulation. It was found that the results of pipeline configuration and stress obtained from simulation tests were all in good accordance with the experimental results, indicating its reference for future research on dynamics of deep-sea lifting system.