结构监测技术在海上重大件运输中的应用研究
[Abstract]:The safety and security technology of maritime transportation has always been the focus of research in the field of shipping. From 1998 to 2005, there were 5 large cases of marine transportation damage accidents. The safe transportation of large goods has caused widespread concern for the time being. Although the ship was checked and guaranteed before sailing to meet the standards, the accident still occurred. It can be seen that only relying on theoretical calculation can not completely guarantee the safety of ship cargo transportation. Therefore, it has been proposed that the real time monitoring of fastening and binding components and the state of ship structure can be carried out. By using the structural monitoring technology, if there is a dangerous situation (exceeding the alarm monitoring value set by the system for the specific position) in the course of navigation, the system will automatically alarm, and the crew can take timely evading measures according to the specific situation. At the same time, the monitoring system can collect and preserve the navigation data. Through the analysis and comparison of the collected data, it can accumulate experience for the later fastening and binding scheme and the similar dangerous situation. According to the results of data analysis, the relevant personnel can strengthen the safeguard measures before sailing and further improve the safety of large-haul transportation. At present, only a few container ships, bulk carriers and oil tankers are equipped with structural monitoring systems. In this paper, the necessity and feasibility of the application of structural monitoring technology to the transportation of large parts at sea are discussed, and the selection of sensors and monitoring positions used in monitoring is analyzed. The specific research work is as follows: 1) the principle and research progress of structural monitoring technology are summarized and analyzed. At the same time, the application of monitoring technology in other fields is introduced. In this paper, the structure characteristics and weak area of barge are analyzed in combination with the specifications, and the mooring mode, fastening mode, stability and strength requirements in the course of transportation are analyzed and discussed. This shows the necessity and feasibility of using monitoring. 2) the selection of sensors used in monitoring technology is analyzed. At the same time, the selection of the sensor location and the installation mode of the sensor are briefly introduced. 3) by analyzing the finite element calculation results of the barge jacket transportation, and according to the relevant codes, the specific position points for the barge monitoring are determined, and the sensors are arranged in these points and areas. A sub-module of structural monitoring system, barge local strength monitoring system, is proposed.
【学位授予单位】:大连海事大学
【学位级别】:硕士
【学位授予年份】:2013
【分类号】:TP274;U698.3
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