故障模式比率 的英文怎麼說
中文拼音 [gùzhàngmóshìbǐlǜ]
故障模式比率
英文
failure mode ratio- 故 : Ⅰ名詞1 (事故) event; incident; happening; accident 2 (原因) cause; reason 3 (朋友; 友情) fr...
- 障 : Ⅰ動詞(阻隔; 遮擋) block; hinder; obstruct Ⅱ名詞(遮擋物) barrier; block; obstacle
- 模 : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
- 式 : 名詞1 (樣式) type; style 2 (格式) pattern; form 3 (儀式; 典禮) ceremony; ritual 4 (自然科...
- 比 : Ⅰ動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
- 率 : 率名詞(比值) rate; ratio; proportion
- 故障 : hitch; breakdown; stoppage; fault; faulting; accident; blunder; bug; conk; failure; impairment; i...
- 模式 : model; mode; pattern; type; schema
- 比率 : ratio; proportion; rate比率計 ratio meter
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The thesis presents a expert system for identifies power quality disturbance signal, after compare the artificial neural network, nearest neighbors, fuzzy decision, and expert system. we bring forward the project flexible rule - based expert system, according to the characteristic inspection and measure system, and has a deep research on the problem of this system. this project for disturbance classifies has lower mistake ratio and facility maintenance
採用專家系統的方法進行模式識別,在對神經網路、最近鄰法、模糊邏輯和專家系統及一些交叉方法等模式識別方法進行比較分析的基礎上,根據電能質量信號故障分析的特點,提出了採用規則基專家系統的方法,該模式識別方法具有便於擴展、修改和識別率高等特點。Procreant knowledge expression and forward inference engine are adopted in the method of fault diagnosis based on expert system theory. in the fault diagnosis applying neural network theory, six kinds of improved arithmetic of back - propagation arithmetic, including gradient descent with momentum, variable learning rate back - propagation, resilient back - propagation, quasi - newton, levenberg - marquardt and conjugate gradient, are applied to diagnose the faults of electric load manage center and solid state power controller. different diagnostic results gotten by simulation are compared at last
在基於專家系統的故障診斷方法中,採用了產生式知識表達和正向推理機制;在基於神經網路的故障診斷方法中,則分別採用了bp神經網路的附加動量法、自適應學習速率、彈性bp演算法、擬牛頓法、共軛梯度法和levenberg - marquardt法對電氣負載管理中心和固態功率控制器的故障進行診斷,並對由模擬得到的不同診斷結果進行比較。Abstract : based on the analysis of the physical structure, operati ng principle and dynamic characteristics of the power unit of an excitation cont rol system, a model of this power unit is firstly established with bond graph app roach. the operation of this unit in both normal and abnormal conditions is simul ated on the platform of matlab with simulink. this simulation results have compar ed with the real operation behaviors
文摘:在對同步發電機自並勵系統功率單元的物理結構、工作原理及動態特性進行分析的基礎上,建立了勵磁功率單元分散式物理圖網模型,並在matlab的simulink平臺上對勵磁功率單元正常和幾種故障情況下的工作進行了模擬研究,並與實際工作情況進行了比較
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