Research of neutral network technique in engines wear diagnosis 發(fā)動機(jī)磨損診斷的神經(jīng)網(wǎng)絡(luò)技術(shù)研究
A forecasting method of aero - engine wear faults based on gray time sequence model 基于灰色時(shí)序的航空發(fā)動機(jī)磨損故障預(yù)測模型
Secondly , introducing the image analyzing technology with reference to the disadvantages of the traditional ferr - graph analysis technology , and with the combination of characteristic parameter optimizing filtration so as to raise a description method of debris micro - morphologic character . thirdly , with the application of mode recognition method , completing the process of debris auto - recognition based on the collected information of the debris configuration characteristics ; and conducting the diagnosis on the aero - engine wear faults according to the theory of particle tribology . fourthly , introducing information fusion technology to solve the problem that a single method can not collect enough fault premonitory information to conduct the wear fault diagnosis , hence to conduct the research and exploration in the field of comprehensive diagnosis on the aero - engine ' s multi - fault premonitory information 本文的研究工作主要包括以下五個(gè)部分:首先,介紹航空發(fā)動機(jī)常見的磨損故障類型,研究磨損故障的失效機(jī)理,分析磨粒的產(chǎn)生機(jī)理、分類以及形態(tài)特征:其次,針對傳統(tǒng)鐵譜分析技術(shù)的缺點(diǎn),引入圖像分析技術(shù),再結(jié)合特征參數(shù)優(yōu)化篩選,形成基于圖像的磨粒顯微形態(tài)學(xué)特征描述方法:然后,基于提取到的磨粒形態(tài)特征信息,應(yīng)用模式識別方法完成磨粒自動識別,并根據(jù)顆粒摩擦學(xué)的基本原理進(jìn)行航空發(fā)動機(jī)磨損故障的診斷與定位:再后,鑒于單一方法不能提取足夠的故障征兆信息進(jìn)行磨損故障診斷,本文引入信息融合技術(shù),開展航空發(fā)動機(jī)多故障征兆信息綜合診斷方法的研究與探索;最后,基于航空發(fā)動機(jī)滑油光譜分析與鐵譜分析數(shù)據(jù),應(yīng)用時(shí)序模型、灰色模型以及組合模型進(jìn)行磨損故障的預(yù)測方法研究。
engine: n. 1.機(jī)械,機(jī)器。 2.引擎,蒸汽機(jī),發(fā)動機(jī)。 3. ...wear: n. = weir. no-wear: 無損wear: vt. (wore ; worn ) 1.穿著,戴著,掛著,佩著,帶著。 2.留著(胡須等);有著(記憶等)。 3.帶著(某種表情,氣味等);表現(xiàn)出,呈現(xiàn)著。 4.磨損,用舊。 5.使疲乏,使軟弱無力。 6.磨成,消蝕成(洞、溝等)。 7.消磨(時(shí)間)。 8.(船)升(旗)。 wear eyeglasses 戴著眼鏡。 wear one's hair long 留長頭發(fā)。 wear a smile 帶著微笑。 He wears her in his heart [memory]. 他心里記著她。 She is worn to a shadow with care. 她憂愁得像瘦鬼一樣了。 much worn clothes 非常流行的衣服;穿得很舊的衣服。 wear a hole in 在…上磨成一個(gè)洞。 vi. 1. 經(jīng)用,耐用。 2. 損耗,磨破,變舊 (away out off)。 3. 疲乏,衰弱。 4. (時(shí)間,季節(jié)等)慢慢過去,消逝。 It won't wear. 這個(gè)東西不經(jīng)久。 The metal is wearing. 金屬慢慢在磨損。 wearaway 1.vi. 漸漸度過;漸漸消耗,磨損。 2.vt. 消磨(時(shí)間);慢慢地磨滅。 wear down 1. 使衰弱;挫??;慢慢破壞;消蝕。 2. 堅(jiān)韌不拔地克服(困難等)。 wearoff 1.vi. 磨損,磨滅,消滅,漸漸消逝。 2.vt. 磨損,磨滅,消耗。 wear on 1. (時(shí)間)消逝,過去。 2. 使惱火;騷擾。 wear one's years well 不顯老,顯得年輕。 wear out 1.vt. 穿壞,穿舊;耗盡,用盡;使疲乏不堪〔也用作比喻〕;消磨(時(shí)間、一生等) (wear out sb.'s welcome (因?yàn)樵L問次數(shù)太多等)使人覺得討厭。 His patience was worn out at last. 他終于忍耐不下去了)。 2.vi. 疲乏不堪;耗盡。 wear through the day 好容易挨過一天。 wear well 經(jīng)用;經(jīng)老,顯得年輕 ( He is wear-ing best. 他比任何人都不顯老)。 n. 1.穿著,佩戴。 2.穿戴的東西;佩帶物,服裝。 3.(時(shí)裝等的)流行款式。 4.磨損,磨壞,穿舊,穿壞。 5.經(jīng)用,耐用。 everyday wear 便服。 There is still much wear in these shoes. 這雙鞋子還能穿不少時(shí)候。 There is no wear in it. 這個(gè)不經(jīng)久了。 It is the only wear. 這就是現(xiàn)在非常流行的東西。 be in wear 被人穿著;流行著。 be the worse for wear 被穿破,被用壞。 have in wear (經(jīng)常)穿著。 wear and tear 消磨,消耗,磨損;衰竭;伐采。 wear iron [plate] 耐磨鐵板。 wearproof, wear resistant adj. 不磨損的。 vt.,vi. 【航?!?把)(船頭)轉(zhuǎn)向下風(fēng)。 n. = weir. wear in: 磨合wear on: (時(shí)間)消逝wear to: 磨成wear-in: 磨合engine: n. 1.機(jī)械,機(jī)器。 2.引擎,蒸汽機(jī),發(fā)動機(jī)。 3.機(jī)車,車頭。 4.工具;〔古語〕方法,手段。 a Diesel [steam] engine 柴油[蒸汽](發(fā)動)機(jī)。 an internal combustion engine 內(nèi)燃機(jī)。 an auxiliary engine 輔助發(fā)動機(jī)。 a dental engine 鉆牙機(jī)。 an engine of torture 刑具。 an engine of warfare 兵器,武器。 a fire engine 救火車,滅火機(jī)。 a gasoline engine 汽油機(jī)。 a pile engine 打樁機(jī)。 a race engine 比賽用汽車,賽車。 an empty engine (未掛列車的)空車頭。 vt. 給…安裝發(fā)動機(jī)。 engine on: 發(fā)動機(jī)工作; 發(fā)動機(jī)開車on-engine: 隨機(jī)的t-engine: 字頭氣缸發(fā)動機(jī); 字頭汽缸發(fā)動機(jī)the engine: 主語是abnormal wear: 異常磨損abrasie wear: 磨損,磨蝕abrasion wear: 磨料磨損abrasive wear: 磨耗量; 磨粒磨損; 磨料磨損; 磨蝕,磨損; 磨損,磨蝕absence of wear: 無消耗active-wear: 運(yùn)動服。 adhesion wear: 粘附性磨耗; 黏著磨損adhesive wear: 膠粘磨損; 粘附腐蝕; 粘著磨損adjustment for wear: 補(bǔ)償磨損調(diào)整admissible wear: 容許磨損allowable wear: 容許磨損; 許用磨損amount of wear: 靡損率; 磨損程度