全海深沉积物力学特性智能施测系统设计  

Intelligent Measurement System Design for Mechanical Properties of Sediments in All-sea-depth

作　　者：迟书凯[1] 韩涛 葛宪威 CHI Shu-kai;HAN Tao;GE Xian-Wei(Engineering College,Ocean University of China,Qingdao 266061,China)

机构地区：[1]中国海洋大学工程学院,山东青岛266061

出　　处：《水下无人系统学报》2022年第5期636-643,649,共9页Journal of Unmanned Undersea Systems

基　　金：国家重点研发计划项目资助(2018YFC0309200).

摘　　要：海洋研究开发已经进入全海深技术时代,具备全海深能力的沉积物力学特性施测系统对于海底资源探测与研究领域至关重要。以沉积物力学特性原位测试系统为研究对象,基于全海深沉积物土力学试验规范与惯例,结合全海深环境的通信难度大、不确定因素多以及全海深沉积物抗剪切强度变化范围小、力学特性受海水压影响的特点,设计了具备全海深静力触探测试、十字板剪切测试和全流动贯入测试及原位采样功能的智能施测系统。系统的实现依靠硬件上的ARM+FPGA结构和软件上的状态机设计模式,在反应能力和容错能力上达到全海深测试要求。一系列样品土和海域实验证明系统具备全海深工作和准确测试沉积物土力学特性能力。Ocean research and development has entered the era of all-sea-depth technology. A sediment mechanical property survey system with all-sea depth capability is very important in seabed resource exploration and research. This study used the in-situ test system of sediment mechanical properties as the object of study and designed an intelligent measurement system for all-sea-depth static touch exploration test, cross-board shear test, full-flow penetration test, and in-situ sampling function,which combines the characteristics of difficult communication, multiple uncertainties, small range of changes in shear strength of deep-sea sediments, and the influence of sea pressure on mechanical properties, according to the specifications and conventions of deep-sea sediment soil mechanical tests. The implementation of the system relies on the ARM+FPGA structure on the hardware and the state machine design mode of the software and satisfies the requirements of the all-sea-depth test on responsiveness and fault tolerance. A series of sample soils and sea experiments have demonstrated that the system can work at all-sea depths and accurately test the mechanical properties of sediments.

关 键 词：全海深沉积物 原位测试 智能施测 

分 类 号：U666.16[交通运输工程—船舶及航道工程] TP274.2[交通运输工程—船舶与海洋工程]