發(fā)布時間：2018-01-12 21:26

  本文關鍵詞：城市橋梁安全運營監(jiān)測網(wǎng)絡的軟件系統(tǒng)研究　出處：《吉林大學》2015年碩士論文　論文類型：學位論文

  更多相關文章： 城市橋梁 模型修正 損傷診斷 安全預警 模態(tài)識別

【摘要】：交通運輸關系國計民生和經(jīng)濟命脈,而大型橋梁則是確保交通能夠暢通無阻的關鍵載體。為了保障大型橋梁結構的安全性、完整性、實用性和耐久性,結構健康監(jiān)測技術應運而生。然而在實際情況中,尤其是在目前,城市化進程不斷加快,城市快速路相互交錯,組成了一張張交通路網(wǎng),保證本區(qū)域的交通暢通。而大型橋梁健康監(jiān)測系統(tǒng)并不能適應城市橋梁網(wǎng)絡集群的特性,無法照搬到城市橋梁安全運營監(jiān)測上來。針對這一現(xiàn)狀,本文提出建立一個集群的網(wǎng)絡式的城市橋梁安全運營監(jiān)測網(wǎng)絡系統(tǒng),從整體的角度管理區(qū)域內(nèi)的多座橋梁,并且能夠在增加橋梁監(jiān)測數(shù)量時做到不重新設計軟件或做簡單調(diào)整就能實現(xiàn)。能夠同時在線了解區(qū)域內(nèi)多座橋梁的實時運營情況,當一座橋梁出現(xiàn)問題時,可以及時查看對其他橋梁的影響,從而提前做好預防措施,防止安全事故的發(fā)生。圍繞這個核心,本文主要做了以下工作：1.簡要介紹了橋梁健康監(jiān)測系統(tǒng)的概況,包括其發(fā)展歷史和組成,在查閱了大量有關資料后,總結出了在構建城市橋梁安全運營監(jiān)測網(wǎng)絡系統(tǒng)中的幾個關鍵性問題,包括傳感器的優(yōu)化布設、安全性評估、數(shù)據(jù)處理與軟件架構以及數(shù)據(jù)傳輸與存儲安全等問題。并著重研究了傳感器的優(yōu)化布設問題,包括其優(yōu)化原則和優(yōu)化方法,以及各種方法之間的對比,介紹了安全性評估的方法及國內(nèi)外最新研究成果。2.重點介紹了城市橋梁安全運營監(jiān)測網(wǎng)絡軟件系統(tǒng)各個子系統(tǒng)的詳細設計,包括傳感器感知層設計、橋梁結構安全與預警子系統(tǒng)設計、數(shù)據(jù)庫子系統(tǒng)設計以及登錄系統(tǒng)的設計。并就橋梁結構模態(tài)參數(shù)識別和損傷診斷以及有限元模型修正方法做了詳細介紹；確定了軟件編制的準則、流程,以及相關功能算法。3.利用MATLAB數(shù)據(jù)計算編程軟件編制了其核心程序,即城市橋梁安全運營監(jiān)測網(wǎng)絡系統(tǒng)軟件。該程序能夠實現(xiàn)數(shù)據(jù)的采集、分析、模態(tài)識別、有限元模型修正以及預警報警功能；其頁面友好,操作簡單,易于管理和分析,可以為橋梁管理部門提供有效的管理工具。
[Abstract]:The relationship between transportation and economic lifeline and beneficial to the people's livelihood, large bridge is key to ensure the carrier transport can smoothly. In order to guarantee the safety of large bridge structure integrity, practicality and durability, as structural health monitoring technology. However, in the actual situation, especially in the current city, accelerating the process of city expressway. Interlaced, composed of a traffic network, ensure the regional traffic flow. And the large bridge health monitoring system can not adapt to the characteristics of city bridge network cluster, can not be moved to the bridge safety monitoring city. In view of this situation, this paper set up a cluster network of the city bridge safety operation monitoring the network system, from the overall perspective of bridge management within the region, and can not re design software or increase in the number of bridge monitoring Do a simple adjustment can be achieved. At the same time can real-time operation area bridges online understanding, when a bridge when there is a problem, you can see real-time effects on other bridges, so as to advance the prevention measures to prevent the occurrence of accidents. Around this core, this paper mainly do the following work: 1. are briefly introduced. Overview of bridge health monitoring system, including its development history and composition, by consulting a large number of relevant data, summarizes several key issues in the construction operation safety monitoring network system for city bridges, including the optimal placement of sensors, safety evaluation, data processing and software architecture and data transmission and storage security the problem. And it focuses on the optimization of sensor layout problems, including the optimization principle and method, and contrast between the various methods, the paper introduces the security evaluation The methods and the latest research results of.2. focuses on the detailed design of city bridge security operation monitoring network software subsystem, including sensor layer design, bridge structure safety and early warning subsystem design, subsystem design and the design of database login system. And elaborates the structural modal parameters identification and damage diagnosis and finite element model updating method; determine the software standards, processes, and related function of.3. algorithm using MATLAB data compiled the kernel program programming software, namely the city bridge monitoring network system security operation software. The program can realize the data acquisition, analysis, modal analysis, finite element model updating early warning and alarm function; the page is friendly, simple operation, easy management and analysis, can provide effective management for Bridge Management Department Tools.

【學位授予單位】：吉林大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U446

【共引文獻】

相關期刊論文 前1條

1 孫野;殷鳳龍;胡昊;焦志鑫;;基于有限元的變速箱箱體模態(tài)分析及測點優(yōu)化選擇[J];煤礦機械;2014年02期

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本文編號：1416078