基于波流联合作用深海采矿扬矿管纵向振动分析
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山东科技大学

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TD432

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国家自然科学基金项目(51774193), 山东省自然科学基金项目(ZR2017MEE025)


Longitudinal vibration analysis of hoisting pipe in deep sea mining based on combined action of wave and current
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Shandong University of Science and Technology

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    摘要:

    对5000m扬矿管在海洋波流联合作用下的纵向振动进行分析,建立扬矿子系统的物理模型和数学模型,研究了在四级凤况下,波浪和海流对扬矿管纵向振动的影响。研究结果表明,波流联合作用下产生的液动力会使扬矿管在深海中发生横向偏移和纵向振动,且扬矿管的纵向振动为简谐运动,纵向振动幅值由上到下逐渐减少,最大振动幅值出现在扬矿管的首端,其振动幅值为0.9641m,最小振动幅值出现在扬矿管的尾端,振动幅值为0.1935m。且在0~200s计算的时间内,扬矿管各周期纵向振动的最大振动幅值各不相同。

    Abstract:

    the longitudinal vibration of 5000m hoisting pipe under the combined action of ocean wave and current was analyzed, the physical model and mathematical model of the hoisting subsystem were established, and the influence of wave and current on the longitudinal vibration of the hoisting pipe was studied under four-level wind condition. The research results show that under the joint action of wave flow of fluid power will make the young mine tube lateral displacement and longitudinal vibration occurred in the deep sea, and the longitudinal vibration with the Yang mine tube is simple harmonic motion, from top to bottom gradually reducing longitudinal vibration amplitude, the maximum vibration amplitude in Yang head end of the mining pipe, its vibration amplitude is 0.9641 m, the minimum vibration amplitude at the end of the Yang mine tube, the vibration amplitude is 0.1935 m. The maximum vibration amplitude of the vertical vibration of the hoisting pipe in each period is different in 0~200 calculation time.

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  • 收稿日期:2019-01-10
  • 最后修改日期:2019-01-26
  • 录用日期:2019-01-29
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