摘要
沉积物贯入强度探测是一种重要的深海沉积物强度原位测试技术。针对7000米级深海极端环境特点及精细化原位测量科学需求,开展了一种基于蛟龙号载人潜水器的深海非接触强磁式沉积物贯入强度原位测量装置研究,突破了原有贯入强度测量技术在7000米级深海结构复杂,无法实现原位、精细化测量的问题,提出了一种基于载人潜水器的永磁体力平衡传导非接触原理解决深海耐压与应变片形变传导的技术方法,并完成了样机研制及深海海上试验,取得了良好的测试效果。整套系统采用自容式工作方式进行数据的采集及存储,可与计算机连接实现数据原位读取,作业水深7000 m,贯入深度最大250 mm,测量量程0~100 kPa,精度可达5%~10%FS。2021年3月在帕里希维拉海盆,搭载蛟龙号载人潜水器在181、185潜次中完成了5200 m及6650 m海试应用,成功获得土工力学数据。
Sediment penetration test was an important in-situ testing technique for deep-sea sediment strength.In view of the extreme environmental characteristics of the 7000 meter deep sea and the scientific demands for fine in-situ measurement,a deep-sea non-contact strong magnetic sediment penetration strength in-situ measurement device was developed based on the Jiaolong manned submersible,which broke through the problem that the original penetration measurement techniques in the 7000 meter deep sea structure was complex and could not achieve in-situ and fine measurement,A new method of solving deep-sea pressure resistance and strain gauge deformation conduction was proposed based on the non-contact principle of permanent magnetic force balance conduction of manned submersible.The prototype development and deep-sea sea tests were completed,and good test results were obtained.The whole system adopted self-contained working mode to collect and store data,and might be connected with the computer to realize in-situ data reading.The operating water depth is as 7000 m,the maximum penetration depth is as 250 mm,the measuring range is as 0~100 kPa,and the accuracy may reach 5%~10%FS(full scale).In March 2021,the Jiaolong manned submersible completed 5200 m and 6650 m sea trials in 181 and 185 dives in the Parihivila basin,and successfully obtained geotechnical data.
作者
任玉刚
刘延俊
丁忠军
REN Yugang;LIU Yanjun;DING Zhongjun(National Deep Sea Center,Qingdao,Shandong,266237;School of Mechanical Engineering,Shandong University,Jinan,250061)
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2023年第6期739-745,共7页
China Mechanical Engineering
基金
山东省自然科学基金(ZR2020QD041)
国家重点研发计划(2022YFC2805205)
国家自然科学基金(52175018)。
关键词
沉积物贯入强度
强磁传导
原位测试
载人潜水器
sediment penetration
strong magnetic conduction
in-situ test
manned submersible
作者简介
任玉刚,男,1987年生,高级工程师。研究方向为载人潜水器作业应用技术。;通信作者:丁忠军,男,1974年生,教授、博士研究生导师。研究方向为载人潜水器传感探测及其作业应用技术。E-mail:dzj@ndsc.org.cn。
