本文選題：調距槳 + 故障診斷��； 參考：《哈爾濱工程大學》2013年碩士論文

【摘要】：調距槳是集電氣、機械、液壓為一體的典型的復雜系統(tǒng)，其中液壓系統(tǒng)是其重要組成部分，在調距槳系統(tǒng)出現(xiàn)的各種故障中液壓系統(tǒng)故障也占較大部分。因此，研究調距槳液壓系統(tǒng)的故障模式及其形成機理并對其進行故障診斷具有重要的現(xiàn)實意義。本文在對調距槳液壓系統(tǒng)常見故障進行調研總結的基礎上，開展了液壓系統(tǒng)故障仿真與診斷技術研究，具體研究工作如下： 1對可調距螺旋槳系統(tǒng)的組成及結構進行分析，，以某調距槳液壓系統(tǒng)為研究對象，利用AMESim軟件建立了調距槳液壓系統(tǒng)仿真模型，并檢驗該模型的正確性。 2分析調距槳液壓系統(tǒng)常見的液壓泵磨損、溢流閥故障、壓力濾器堵塞、液壓缸泄露、液壓泵“氣穴”等六種故障模式，對各故障模式的故障機理進行分析并利用AMESim軟件建立了各故障的故障模型，仿真運行各模型得出故障狀態(tài)下的液壓系統(tǒng)運行參數，從中尋找出各故障模式的故障特征指標，為調距槳液壓系統(tǒng)的故障診斷提供故障樣本數據。 3利用FMEA方法對各故障模式進行分析；以各故障模型仿真得到的故障特征指標數據為故障樣本數據，運用RBF神經網絡對各故障進行診斷。診斷出結果后從FMEA表格中查得該故障的形成原因、影響及使用補償措施等相關故障信息，便于故障的快速排除，在使用中有一定的實用價值。
[Abstract]:Adjustable pitch propeller is a typical complex system with electric, mechanical and hydraulic systems, in which hydraulic system is an important part, and hydraulic system faults also account for a large part in all kinds of faults of pitch regulating propeller system. Therefore, it is of great practical significance to study the fault mode and its formation mechanism of the hydraulic system with adjustable pitch propeller and to diagnose the fault. Based on the investigation and summary of the common faults of the hydraulic system of the adjustable pitch propeller, this paper studies the fault simulation and diagnosis technology of the hydraulic system. The specific research work is as follows: 1 the composition and structure of the adjustable pitch propeller system are analyzed. Taking a certain adjustable pitch propeller hydraulic system as the research object, the simulation model of the adjustable pitch propeller hydraulic system is established by using AMESim software. And verify the correctness of the model. 2 analyze the hydraulic pump wear, relief valve failure, pressure filter blockage, hydraulic cylinder leakage, hydraulic pump "cavitation" six fault modes, etc. The fault mechanism of each fault mode is analyzed and the fault model of each fault is established by using AMESim software. The operating parameters of hydraulic system under the condition of fault are obtained by simulating each model, and the fault characteristic indexes of each fault mode are found out. Fault sample data are provided for fault diagnosis of hydraulic system with adjustable pitch propeller. 3 each fault mode is analyzed by FMEA method, fault characteristic index data obtained by simulation of each fault model is taken as fault sample data. RBF neural network is used to diagnose the faults. After the diagnosis results are found from the FMEA table, the causes of the fault formation, the influence and the use of compensation measures and other related fault information are found, which is convenient for the rapid troubleshooting of the fault, and has certain practical value in use.
【學位授予單位】：哈爾濱工程大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：U672.7;TH137

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