1km铰接式扬矿子系统横向运动仿真与实验研究  

Experimental Study for Lateral Motion of 1 km Articulated Lifting Subsystem

作　　者：冯雅丽[1] 徐妍[1] 冯福璋[1] 张文明[1] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083

出　　处：《中国矿业大学学报》2007年第2期246-250,共5页Journal of China University of Mining & Technology

基　　金：国家长远发展专项和国际海底区域研究开发"十五"项目(DY105-03-02-17);高等学校博士学科点专项科研基金项目(20060008025)

摘　　要：根据相似理论,建立了深海采矿1 km中试系统铰接式扬矿子系统的动力学实验系统,采用正弦机构,模拟海浪对船的横向激振,对铰接式光体圆柱硬管系统在6级海况下的横向运动进行了实验;用虚拟样机技术进行了6级海况时的瞬时动态分析、动力学分析及动力学仿真.结果表明:铰接式扬矿系统的泵及中间舱的弯矩呈周期性变化,60 N.s时趋于稳定,其值小于固接扬矿系统.激振周期10 s时中间舱和泵处的横向偏移振幅分别为9 m和5 m,呈周期性变化,运动周期大于海流周期;仿真结果与实验结果基本一致.铰接式扬矿管体不受弯矩,相当于柔性管.Based on the similarity theory, experimental installation for dynamics of 1 km articulated lifting subsystem was established. Lateral shock excitation upon mining ship was simulated by using sine mechanism. The lateral motions of articulated cylinders under the six-grade oceanic condition were tested. The model of lifting system is established by virtual prototype technology. Its dynamic behavior under the same oceanic condition is analyzed. The results show that flexural torques of pump and buffer in articulated lifting subsystem are periodic changed, and drive to 60 N · S. The values of them are less than the ones of fixed lifting system. When the period of shock excitation is 10 second, the amplitudes of lateral displacement of buffer and pump are 9 and 5 meters, respectively. The locus is periodic changed. The period of motion is much greater than the ocean current one. The simulation results and the test ones are consistent. The articulated lifting pipes don＇t bear flexural torque, so it can be treated as flexible bodies.

关 键 词：铰接式扬矿系统 相似理论 横向偏移 虚拟样机技术 

分 类 号：P751[交通运输工程—港口、海岸及近海工程] P74[天文地球—海洋科学]