static stall 中文意思是什麼
static stall
解釋
固定檔位-
Firstly, the airfoil ' s classic flutter ( at small attack angle ), stall flutter ( near the static stall angle ) and response ( at large attack angle ) are analyzed. it is found from the numerical results that " lock - in " will occur at certain freestream velocity range near the static stall angle, where the frequency of the vortex will be equal to the natural frequency and the flutter has the characteristic of self - induced oscillation. when the attack angle is far from the static stall angle, the vortex will have its own frequency, which differs from the natural frequency, and the flutter has the characteristic of forced oscillation
首先研究了二維翼型的古典顫振（小攻角） 、失速顫振（失速攻角）和動力響應問題（大攻角） ，得到以下結論：在靜態失速攻角附近的一定來流速度范圍內，分離渦會發生頻率鎖定現象，分離流的頻率與固有頻率趨于相同，這時的振動呈現自激振動的特點；遠離失速攻角時分離流頻率則擺脫固有頻率的影響，此時的振動具有強迫振動的特點。 -
On the basis of the test about air conditioner, its load characteristics are analyzed, including the static characteristics, drop out characteristics, starting characteristics and its responses to voltage dips. it shows that the current impact can reach five to eight multiples when the air conditioner started and come back within 0. 3 to 0. 5 second. 0. 6 pu voltage is the critical voltage whether the air conditioner will stall
分析發現，空調啟動時電流沖擊倍數可達5 8倍，在0 . 3 0 . 5秒之內平息； 0 . 6u _ n為空調停機的臨界電壓，因此空調的電壓擾動特性可以分為兩種情況：一為較小擾動情況下空調尚未停機時的動態；另一為大擾動導致空調停機時的動態。 -
The radial, circumferential and axial distributions of static pressure amplitude under post - stall conditions are measured and compared. the experimental results have proved the feasibility of using one - dimensional model to analyze the post - stall behavior and recoverability of compression systems. at the same time, the results of experiment have provided the first - hand data for analyzing and calculating vibrating response of blades under post - stall conditions
以單級軸流壓氣機實驗器為對象，研製了兩種型式的靜壓動態探針?梳形針和圓盤針，詳細測量了過失速狀態下流道中壓力沿徑向、周向和軸向分佈，驗證了用一維模型分析壓氣機過失速性能和失速可恢復性的可信度，同時為過失速狀態下葉片的振動響應分析計算提供了第一手實驗數據。
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