Metallurgy Crane's Structure Stress Remote Monitoring Technology Research Based On The Wireless Network

Metallurgical crane is an indispensable key equipment of metallurgical industry, and has been occupying a pivotal position in metallurgical industry all the time. Along with the developments of social economy and science and technology, metallurgy cranes are developing towards the direction of large-scale lifting weight and rapid pace working. All the time long, its safety and reliability has been concerned. Metal structure, which bears the crane's work load, self-weight and other load is the supporting foundation of the whole metallurgy crane's safety work. In order to understand the performance of metallurgical crane, in the traditional equipment management, people work on the stress measurement of metal structures. Based on the analysis of the measured stress data, people understand the stress condition in the working process of metal structure of metallurgy crane. According to the results of analysis, people can carry on the corresponding evaluation and maintenance. Although there is certain scientific basis for this work patterns, its real-time is not strong, it still remains some potential safety problems, and theses problems should be solved.This paper starts from the status of metallurgy crane's safety maintenance management above, and makes theoretical analysis and experimental research on the remote monitoring system of the metallurgy crane's structure stress by combining Metallurgical crane metal structure characteristics, using modern corresponding detection technology and means of calculation and analysis.Considering that the metallurgical crane is often in high-temperature working condition and temperature's uneven distribution makes metal structure produce thermal stress, firstly, this paper carries finite element analysis on metallurgy crane machine by finite element analysis software ANSYS, researches the modeling technology considering the stress influence of the thermal stress on structure at work and the finite element analysis method of temperature - stress field coupling; then, with modern mechanical testing technology and experiment technology as the research methods, use the strain electrical measuring method to get stress data of crane structure, what's more, it puts forward wireless data transmitting scheme based on the wireless network and designs the wireless transmission network structure, and it builds the whole stress monitor physical systems with the configuration of corresponding hardware; meanwhile, carries experimental research on wireless transmission data- collecting system, and analyze the reliability and anti-interference capability of wireless data transmitting; With the existing network resources, realizes wireless transmission of stress data; also, explores the setting principle of corresponding stress threshold index to make analysis and judgment on the stress condition and safety of metallurgy crane under its work condition.This thesis is mainly divided into four parts. The first part:carry the temperature-stress field coupling finite element analysis on metallurgy cranes by finite element analysis software ANSYS, and calculate the stress influence of the thermal stress from temperature's uneven distribution on the whole structure; The second part: introduce wlan agreement and network topology structure, and design a network topology structure of data transmitting of metallurgical crane's remote structure stress monitoring system; The third part:build the whole metallurgy crane's remote online structure stress monitoring system, and research and monitor the reliability and the ability of anti-interference of the system's wireless data transmitting through experiments; The fourth part:work out relevant data transmitting program and controlling software, and explore the setting principle of safe stress threshold to stress monitoring system.This paper's research results can offer some references to the metallurgical crane's on-line safe monitoring.