本文選題：航空發(fā)動(dòng)機(jī) + QAR數(shù)據(jù)��； 參考：《中國(guó)民航大學(xué)》2016年碩士論文

【摘要】：航空發(fā)動(dòng)機(jī)監(jiān)控技術(shù)是飛機(jī)和發(fā)動(dòng)機(jī)正常運(yùn)行的基礎(chǔ),是航空運(yùn)營(yíng)單位保證其正常運(yùn)營(yíng)的重要方面,目前國(guó)外主流發(fā)動(dòng)機(jī)制造商都開(kāi)發(fā)出應(yīng)用于自身發(fā)動(dòng)機(jī)的監(jiān)控軟件,可以對(duì)飛機(jī)和發(fā)動(dòng)機(jī)進(jìn)行準(zhǔn)確、可靠的狀態(tài)監(jiān)控和故障診斷。本文研究了航空發(fā)發(fā)動(dòng)機(jī)監(jiān)控技術(shù)的發(fā)展現(xiàn)狀,對(duì)比了國(guó)內(nèi)外技術(shù)的差異,明確了我國(guó)監(jiān)控技術(shù)的努力方向和突破重點(diǎn)。重點(diǎn)研究了飛機(jī)機(jī)載數(shù)據(jù)采集系統(tǒng)、數(shù)據(jù)傳輸系統(tǒng)和地面監(jiān)控系統(tǒng),對(duì)QAR數(shù)據(jù)和ACARS報(bào)文數(shù)據(jù)進(jìn)行研究并進(jìn)行了同源性分析,為本文的報(bào)文解析工作提供了理論基礎(chǔ)。本文提出了一種基于QAR數(shù)據(jù)的報(bào)文解析技術(shù),從QAR中按照特定提取邏輯和算法提取滿(mǎn)足觸發(fā)條件的發(fā)動(dòng)機(jī)穩(wěn)態(tài)報(bào)文數(shù)據(jù),通過(guò)與廠家原始報(bào)文數(shù)據(jù)進(jìn)行對(duì)比來(lái)校驗(yàn)其準(zhǔn)確性,利用該種方法可以有效拓寬報(bào)文的獲取途徑,解決ACARS報(bào)文獲取困難、費(fèi)用昂貴等問(wèn)題,為航空公司在無(wú)法獲取報(bào)文時(shí)提供應(yīng)急處置方案,也可以為高校和研究單位提供模擬ACARS報(bào)文以進(jìn)行教學(xué)和研究工作。本文同時(shí)研究了航空發(fā)動(dòng)機(jī)狀態(tài)參數(shù)的基線挖掘,總結(jié)了現(xiàn)有基線挖掘的理論和方法,并對(duì)標(biāo)準(zhǔn)化模型進(jìn)行了改進(jìn),利用多種方法進(jìn)行了基線挖掘和擬合并對(duì)所提取的基線進(jìn)行了對(duì)比,具有良好的效果。本文通過(guò)建立航空發(fā)動(dòng)機(jī)狀態(tài)監(jiān)控系統(tǒng),將本文研究的報(bào)文解析、基線監(jiān)控等技術(shù)進(jìn)行融合,實(shí)現(xiàn)了QAR數(shù)據(jù)導(dǎo)入、報(bào)文提取、極值監(jiān)控、基線監(jiān)控、趨勢(shì)圖繪制、數(shù)據(jù)存儲(chǔ)等功能,可以基本實(shí)現(xiàn)對(duì)航空發(fā)動(dòng)機(jī)的運(yùn)行狀況進(jìn)行準(zhǔn)實(shí)時(shí)監(jiān)控及航后分析,有利于及時(shí)發(fā)現(xiàn)并處理異常情況。
[Abstract]:Aeroengine monitoring technology is the basis of aircraft and engine normal operation, and an important aspect of aviation operation unit to ensure its normal operation. At present, mainstream engine manufacturers abroad have developed monitoring and control software for their own engines. Aircraft and engine can be accurate and reliable state monitoring and fault diagnosis. In this paper, the development status of aero-engine monitoring technology is studied, the differences between domestic and foreign technologies are compared, and the direction of our country's monitoring technology and the key point of breakthrough are defined. The airborne data acquisition system, data transmission system and ground monitoring system are studied in detail. The QAR data and ACARS message data are studied and the homology analysis is carried out, which provides a theoretical basis for the packet analysis in this paper. In this paper, a packet analysis technique based on QAR data is proposed. According to the specific extraction logic and algorithm, the steady-state engine message data that meets the trigger condition is extracted from QAR, and the accuracy is verified by comparing it with the original message data of the manufacturer. By using this method, we can effectively widen the way of obtaining ACARS packets, solve the problems of difficulty in obtaining ACARS packets and high cost, and provide emergency solutions for airlines when they are unable to obtain packets. Simulation ACARS messages can also be provided to universities and research institutions for teaching and research. At the same time, this paper studies the baseline mining of aero-engine state parameters, summarizes the existing theories and methods of baseline mining, and improves the standardized model. Several methods are used to mine the baselines and to combine them to compare the extracted baselines, and the results are satisfactory. In this paper, the aero-engine status monitoring system is established, and the technologies of message analysis and baseline monitoring are combined to realize QAR data import, message extraction, extreme value monitoring, baseline monitoring, trend map drawing, etc. Data storage and other functions can basically realize the quasi-real-time monitoring and post-flight analysis of the aero-engine operating condition, which is helpful to detect and deal with the abnormal situation in time.
【學(xué)位授予單位】：中國(guó)民航大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類(lèi)號(hào)】：V263.6
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本文編號(hào)：1858162