自由輪傳動 的英文怎麼說
中文拼音 [zìyóulúnzhuàndòng]
自由輪傳動
英文
freewheeling-
Two notable characteristics of tcn are as follows : ( 1 ) polling mac strategy is adopted in link layer by iec 61375 - 1 to ensure the certainty of data transmission time ; ( 2 ) train inauguration procedure is devised to realize the automatic allocation of rail vehicle address in the network. the paper consists of two nain parts : 1. a sinulating system of wire twisted bus ( wtb ) inauguration
Tcn的西大特點是： （ 1 ）為了保證數據傳送時間的確定性， iec61375 - 1標準在鏈路層採用輪詢機制； （ 2 ）由於列車編組經常變化，導致列車總線網路設備地址變化，為此iec61375 - 1設計了列車初運行過程，以實現列車組成變化后車輛地址的自動分配。The dimensional globoidal indexing cam mechanism, as a result of the steady movement, accurate, the transmission ceaseless and is suitable for high speed indexing and precise indexing. now it is the most ideal high speed precision indexing mechanism in the world, and it is being widely applied on each kind of automaton and the production line, this mechanisms prospect of application is broad, arouses the people enormous interest. but the examination of the globoidal indexing cam mechanism is a quite weak link, the manufacturers don ’ t give the examination because of the difficulty of the geometry shape error examination of the cam contour
空間弧面分度凸輪機構，由於運動平穩、準確、傳動無間隙而適用於高速分度和精密分度，是當今世界上最理想的高速精密分度機構，正被廣泛應用於各種自動機和生產線上，該機構應用前景廣闊，引起人們極大的興趣，而弧面分度凸輪機構的檢測是一個比較薄弱的環節，一般生產廠家由於凸輪輪廓幾何形狀誤差檢測困難而不予檢測，因此本試驗臺的研製具有極其重要的意義。In large rotating machinery using filmatic bearing ( turbogenerator, air compressor, etc. ) there is a potential trouble from impefect installation or running conditions, a metals " contact between rotors and shells. the trouble is usully called rubbing. the advantage of ae technologe in the rubbing diagnosis and early detection is showed. instead of classical ae characteristic parameters ( counts, amplitude, energy, duration and the other ones ) a new feature extraction by frequency analysis of ae envelop signals is discussed. both research of ae process and field experements indicate that periodic components in the envelop spectrum related to rotational speed increase evidently at the beginning of rubbing production, hence are highly sensitive to the rubbing fault diagnosis. according to the new design an acoustic emission equipment for the rubbing diagnosis named buaa ae testing system is developed and described
汽輪發電機、空氣壓縮機等採用油膜支撐的大型轉動機械，由於安裝或運行中的原因，在轉子旋轉過程中，可能和器壁發生輕微的摩擦和碰擊，簡稱碰摩.聲發射技術在碰摩發生特別是故障早期診斷上有優越性.本系統的特點是沒有沿用傳統的計數、幅度、能量和持續時間等聲發射特性參數，而是在聲發射包絡信號的頻率分析中進行特徵提取.聲發射發生的過程分析和現場試驗都表明這種方法對碰摩檢測很敏感，在碰摩發生的起始階段，包絡譜中與轉速同步的周期性分量顯著增加.根據這種新的設計思想自行研製了buaa碰摩聲發射檢測儀並對此作了介紹
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