本文關(guān)鍵詞：往復機械故障診斷技術(shù)研究及模擬仿真系統(tǒng)開發(fā)　出處：《北京化工大學》2012年碩士論文　論文類型：學位論文

  更多相關(guān)文章： 往復機械 故障診斷 角域分析 仿真系統(tǒng)

【摘要】：往復機械是石油化工領域核心設備之一，其結(jié)構(gòu)復雜性造成信號重疊、激勵源難分解，同時振動噪聲大的環(huán)境帶來了很多無效信號，有效的故障信號被淹沒，這些都為往復機械的故障診斷帶來了巨大的困難。論文研究的往復機械故障診斷技術(shù)及故障模擬仿真系統(tǒng)對往復機械故障診斷和技術(shù)指導具有一定理論意義和工程應用價值。論文的主要工作如下： 1.研究角度域分析診斷方法，提出了一種基于角域結(jié)合機組工藝參數(shù)、振動狀態(tài)參數(shù)的往復壓縮機綜合故障診斷分析方法，分解機組振動激勵源。 2.對雙缸雙作用和一體式壓縮機進行了完整的機組建模，應用計算機仿真技術(shù)，融合了機組監(jiān)測方法、機組故障征兆和故障信號圖譜，搭建了兩者的運動原理、工作循環(huán)、動態(tài)示功圖的模擬模塊，完成了兩類往復壓縮機正常運行及32種故障的建模及模擬仿真，開發(fā)往復機械故障診斷培訓軟件，實現(xiàn)故障學習的人機交互，，全面展現(xiàn)各類故障機理及現(xiàn)象。 3.將論文研究的診斷方法和模擬仿真系統(tǒng)在實際工程應用，指導分析出10余種機組故障，通過實際應用對其效果進行整體評價，完善了整套故障模擬仿真系統(tǒng)，達到了較好的精度，為專職人員提供了有效的故障診斷指導。
[Abstract]:Reciprocating machinery is one of the core equipment in the field of petrochemical industry. Its structural complexity results in overlapping signals and difficult decomposition of excitation sources. At the same time, the environment of high vibration and noise brings a lot of invalid signals, and the effective fault signals are submerged. All of these bring great difficulties to the fault diagnosis of reciprocating machinery. The fault diagnosis technology and fault simulation system of reciprocating machinery studied in this paper have certain theoretical significance and technical guidance for reciprocating machinery fault diagnosis and technical guidance. The main work of this paper is as follows:. 1. The method of angle domain analysis and diagnosis is studied. A comprehensive fault diagnosis and analysis method of reciprocating compressor based on angle domain combined with process parameters and vibration state parameters is proposed to decompose the vibration excitation source of the unit. 2. The model of two-cylinder double-acting and integrative compressor is built, and the computer simulation technology is used to integrate the monitoring method of the unit, the fault symptoms of the unit and the map of the fault signal. Set up the motion principle, working cycle, dynamic indicator diagram simulation module, completed the normal operation of two types of reciprocating compressor and 32 kinds of fault modeling and simulation. The training software of reciprocating machinery fault diagnosis is developed to realize the man-machine interaction of fault learning and to show all kinds of fault mechanism and phenomenon. 3. The diagnosis method and simulation simulation system are applied in practical engineering, and more than 10 kinds of unit faults are analyzed, and its effect is evaluated through practical application. A complete set of fault simulation and simulation system has been improved to achieve better accuracy and provide effective fault diagnosis guidance for full-time personnel.
【學位授予單位】：北京化工大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TH165.3;TP391.9

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