深海采矿扬矿管纵向振动及其升沉补偿研究  

Research on Longitudinal Vibration and Heave Compensation of Lifting Pipe in Deep Sea Mining

作　　者：肖林京[1] 范芳超 陆继铭 XIAO Linjing;FAN Fangchao;LU Jiming(Shandong University of Science and Technology,Qingdao,Shandong 266590,China)

机构地区：[1]山东科技大学,山东青岛市266590

出　　处：《矿业研究与开发》2020年第12期143-147,共5页Mining Research and Development

基　　金：国家自然科学基金资助项目(51774193);山东省自然科学基金资助项目(ZR2017MEE025)。

摘　　要：建立了扬矿子系统的动力学平衡方程,推导了升沉补偿系统的运动微分方程。利用Wilson-θ法分析了管系的时域响应,基于MATLAB/Simulink以及ABAQUS/Aqua模块对扬矿管的动力学特性进行了研究。结果表明,扬矿管纵向振动振幅上小下大,最大振幅发生在缓冲矿仓处;管系的振动响应会有延迟,并且自上而下延迟时间越来越长。扬矿管的最大轴向力发生在其顶端,且在振动初期,轴向力会发生震荡。升沉补偿系统能有效地改善震荡现象且减小扬矿管顶端的激励位移,在四、六级海况下,扬矿管顶端的激励位移分别下降了51.49%与31.39%,缓冲矿仓处的振幅分别下降了51.55%与31.54%。The dynamic equilibrium equation of lifting subsystem was established,and the motion differential equation of heave compensation system was derived.Wilson-θmethod was used to analyze the time-domain response of the pipe system,and the dynamic characteristics of the lifting pipe were studied based on MATLAB/Simulink and ABAQUS/Aqua module.The results show that the longitudinal vibration amplitude of the lifting pipe is small at the top and large at the bottom,and the maximum amplitude occurs at the buffer silo.The vibration response of the pipe system would be delayed,and the top-down delay time is longer and longer.The maximum axial force of the lifting pipe occurs at its top,and the axial force would oscillate at the initial stage of vibration.The heave compensation system can effectively improve the oscillation and reduce the excitation displacement at the top of the lifting pipe.Under the fourth and sixth grade sea state,the excitation displacement at the top of the lifting pipe decrease by 51.49%and 31.39%respectively,and the amplitude at the buffer silo decrease by 51.55%and 31.54%respectively.

关 键 词：深海采矿 扬矿管 纵向振动 升沉补偿 动力学特性 

分 类 号：TD857[矿业工程—金属矿开采]