rotational spectrum 中文意思是什麼
rotational spectrum
解釋
轉動光譜- rotational : adj. 1. 旋轉的；輪流的，循環的。2. 【農業】輪作的。
- spectrum : n. （pl. -tra ）1. 【物理學】譜，光譜；波譜；能譜，質譜。2. 【無線電】射頻頻譜；無線電（信號）頻譜。3. 【心理學】（眼睛的）余像；殘像。4. 〈轉義〉范圍，幅度；（連續的）系列。
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We analyzed some typical identical bands with four - parameter abstract rotational spectrum formula of bohr - mottelson ' s i ( i + 1 ) expression, so we drew the conclusion. the dynamic moments of inertia j ( 2 ) of so - called two identical bands are very similar, but the kinetic moments of inertia j ( 1 ) and bandhead moments of inertia j0 are n ' t equal. signature partner bands are almost identical
在此基礎上運用bohr - mottelson的i （ i + 1 ）展開公式對部分較為典型的超形變全同帶進行了分析，最後得出結論：所謂全同帶的確只是兩個帶的了j ~ （ （ 2 ） ）比較接近，但兩個帶的j ~ （ （ 1 ） ）和j _ 0一般並不相等，而signature對偶帶更接近全同。 -
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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