本文關鍵詞： 軟件 厚壁管 超聲檢測　出處：《北京理工大學》2015年碩士論文　論文類型：學位論文

【摘要】：軟件是無損檢測系統(tǒng)的核心,首先,軟件起到控制作用,能夠保證檢測效率和準確性;同時,軟件是人機交互接口,是將用戶需求轉換成系統(tǒng)功能的橋梁,可以說軟件直接決定了系統(tǒng)的功能與性能。實現(xiàn)自動化、智能化無損檢測是當前無損加檢測軟件發(fā)展趨勢,本文面向厚壁管超聲無損檢測技術難題,依據(jù)課題組目前厚壁管無損檢測方法和無損檢測硬件裝置,針對厚壁管超聲無損檢測特殊性,設計與開發(fā)一款適用與工廠多通道、自動化、智能化的檢測軟件,實現(xiàn)厚徑管無損檢測。本文中軟件為了保證數(shù)據(jù)管理邏輯性和互換性,采用分層設計思想,厚壁管超聲無損檢測軟件按照界面層、數(shù)據(jù)層、設備層和通訊層進行劃分,使軟件功能層次清晰、數(shù)據(jù)管理方便。同時,軟件為實現(xiàn)多通道管材超聲自動無損檢測,實現(xiàn)超聲無損檢測參數(shù)設置、機械結構調整運動、超聲無損檢測掃查功能設置、A掃圖形顯示和掃查條形圖顯示功能,并在檢測試驗中得到驗證,能夠掃查檢測到0.8mm×2mm、0.8mm×3mm的體積型缺陷,10mm×0.2mm×0.5mm的內表面橫向缺陷、外表面橫向缺陷、內表面縱向缺陷、外表面橫向缺陷。本文對多通道收發(fā)儀采集到的大量數(shù)據(jù)傳輸與顯示遇到的問題,進行基于Socket的多通道大量數(shù)據(jù)傳輸與顯示研究,1)采用多線程方式通訊避免消息堵塞帶來的卡死問題;2)采用累積上傳與分頻上傳的方式實現(xiàn)大量數(shù)據(jù)傳輸;3)采用縮率圖和雙DC繪圖方式,保證圖像顯示效率和質量,經過檢測試驗驗證,能夠實現(xiàn)厚壁管檢測過程12個通道采集數(shù)據(jù)大量數(shù)據(jù)傳輸與顯示。為了實現(xiàn)軟件智能化檢測,設計了適合工廠管理的人員管理功能和管材管理功能,賦予不同類型人員不同軟件功能權限,同時,在數(shù)據(jù)庫中保存管材信息、超聲收發(fā)儀參數(shù)、掃查參數(shù),當操作人員選擇管材后,無需設置參數(shù),直接進入掃查界面,實現(xiàn)智能化檢測。針對檢測過程中難以找到最優(yōu)偏心距的問題,設計基于能量數(shù)學模型優(yōu)化偏心距方法,通過在介質分界層超聲波能量變化規(guī)律和端角反射過程能量變化規(guī)律,計算出能量和偏心距數(shù)學模型,用于估計最優(yōu)偏心距。針對厚壁管檢測過程中,超聲波波型復雜,檢測參數(shù)計算難得問題,設計了聲線仿真的圖像化管材零件檢測輔助軟件,輔助軟件能夠預估檢測參數(shù)、仿真聲波傳播路徑、計算超聲波回波聲時,實現(xiàn)了檢測參數(shù)設計方面的智能化。三維顯示符合檢測軟件智能化的發(fā)展趨勢,本文對管材三維顯示方法進行研究,基于OpenGL實現(xiàn)一種管材缺陷顯示方法,能夠使檢測結果更直觀,簡化檢測人員建模過程。
[Abstract]:The software is the core of the NDT system. Firstly, the software plays a controlling role to ensure the efficiency and accuracy of the detection. At the same time, the software is the interface of man-machine interaction and the bridge to convert the user's demand into the system's function. It can be said that the software directly determines the function and performance of the system, and realizes the automation. Intelligent nondestructive testing (NDT) is the development trend of NDT software at present. In this paper, aiming at the technical problems of ultrasonic NDT of thick wall tube, according to the current NDT method and hardware device of NDT. In view of the particularity of ultrasonic nondestructive testing of thick wall tubes, a kind of automatic and intelligent testing software is designed and developed, which is suitable for multi-channel, automatic and intelligent inspection in factories. In order to ensure the logicality and interchangeability of data management, the software adopts the idea of layered design, and the software of ultrasonic nondestructive testing of thick wall pipe is in accordance with the interface layer and data layer. The equipment layer and communication layer are divided to make the software function level clear and data management convenient. At the same time, the software realizes the automatic ultrasonic nondestructive testing of multi-channel pipe and the setting of ultrasonic nondestructive testing parameters. The mechanical structure adjusts the movement, the ultrasonic nondestructive testing scanning function sets up the A scan graph display and the scan bar chart display function, and is verified in the inspection test, can scan to detect 0.8 mm 脳 2 mm. The volume defect of 0.8mm 脳 3mm is 10mm 脳 0.2mm 脳 0.5mm in transverse defect, transverse defect in outer surface and longitudinal defect in inner surface. The problem of large amount of data transmission and display collected by multi-channel transceiver is studied in this paper based on Socket. 1) Multi-thread communication is adopted to avoid the problem of jam caused by message clogging; 2) A large amount of data transmission is realized by means of cumulative upload and frequency division upload. 3) the efficiency and quality of image display are ensured by using shrinkage graph and double DC drawing method, which are verified by testing and testing. In order to realize the data transmission and display of 12 channels in the thick wall tube inspection process, the personnel management function and the pipe management function suitable for the factory management are designed in order to realize the intelligent detection of the software. At the same time, save the pipe information in the database, ultrasonic transceiver parameters, sweep parameters, when the operator chooses the pipe material, the parameters need not be set. Aiming at the problem that it is difficult to find the optimal eccentricity in the detection process, an energy mathematical model is designed to optimize the eccentricity. The mathematical model of energy and eccentricity is calculated by the law of ultrasonic energy variation in dielectric boundary layer and the law of energy change in end-to-angle reflection process, which can be used to estimate the optimal eccentricity. The ultrasonic wave shape is complex and the calculation of the detection parameters is difficult. A sound line simulation software is designed to simulate the acoustic wave propagation path. The software can predict the detection parameters and simulate the sound wave propagation path. When the ultrasonic echo is calculated, the intelligent design of the testing parameters is realized. The 3D display accords with the development trend of the intelligent testing software. In this paper, the three-dimensional display method of the pipe is studied. A tube defect display method based on OpenGL can make the test results more intuitive and simplify the modeling process.
【學位授予單位】：北京理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TH878.2

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本文編號：1455633