low-speed tunnel 中文意思是什麼
low-speed tunnel
解釋
低速風洞-
Force measurement in a low speed wind tunnel was conducted to investigate the effects of the height of a distant canard wing on the longitudinal aerodynamic characteristics of a forward - swept configuration
摘要基於前掠翼鴨式前翼布局的風洞測力實驗，分析了距離主機翼較遠的鴨翼相對于主機翼的高度對布局縱向氣動性能的影響。 -
Low speed wind tunnel experiment requires strict of the wind speed, which requires a wild range of wind speed, high precision, and quick adjustment
低速風洞實驗要求對實驗段的風速有嚴格的控制，要求風速調節范圍寬，精度指標高，調節速度快。 -
The feasibility of the technique is examined by using compute simulation and flutter testing of aeroelastic models in low - speed wind tunnel
經數字模擬及氣彈模型低速風洞顫振試驗數據驗證，取得了滿意的效果。 -
Focused on the nonstationary features and analysis requirements of flutter test data, the application scheme is brought forward for flutter signal processing. by using computer simulation and flutter test of low - speed wind - tunnel of some aeroelastical modes, the characteristics of the scheme are investigated
本文基於顫振試驗信號的非平穩特點與分析需求，應用自適應時頻分析技術給出並實現了兩種新的顫振信號處理方案，重點研究了適用於連續變速顫振試驗的顫振邊界預測問題。 -
For simulating the radial static pressure gradient behind the true turbine guide cascade in low speed wind tunnel with annular cascade, the backboards were placed in the downstream field of the guide model cascade of the low - pressure stage of a turbine, and the effects of the types and positions of the backboards on the outlet flow field of the model cascade were experimentally researched
為在環形葉柵低速風洞實驗中模擬實際渦輪級靜葉后徑向壓力梯度，在某型渦輪低壓級靜葉的下游流場設置了擋板，實驗研究了擋板形式及設置位置對靜葉出口流場的影響。 -
Simultaneously, a new fbp criterion is presented based on the gray - lavel and contour for the image of gabor spectrogram and the relation parameter is used to make flutter boundary prediction. the functions of the method are studied by computer simulation and further examined by using several flutter testing data ( low - speed wind - tunnel, high - speed wind tunnel and flight )
本文詳細研究了顫振信號聯合時頻譜圖的特徵，應用圖像邊緣識別方法對顫振信號時頻譜圖的輪廓、灰度進行了綜合分析，給出了一種全新的顫振余量定標量化法，依此量化值完成對顫振邊界的外推。 -
A stability approach of the whole aircraft low speed flutter model suspended in the wind tunnel analysis
全機低速顫振模型的全機穩定性分析 -
The application of plc and human machine interface and inverter in the speed - adjust system of the low speed wind tunnel experiment
與人機界面在低速風洞調速系統上的應用 -
Film cooling of the surface of a gas turbine blade was studied in a large - scale low - speed opening wind tunnel according to actual requirement of the design of aero - engine. the surface of a gas turbine blade was cooled by cylindrical holes in the experiment, with the hole number of fifteen in stator and eight in rotor
應航空發動機設計的要求，在大尺寸低速葉柵傳熱風洞中分別對發動機渦輪導向葉片和動葉表面的氣膜冷卻特性進行了研究，具體研究在不同氣膜孔出流時，在不同主流雷諾數和吹風比情況下葉片表面局部換熱系數的分佈規律。 -
In the part of cooling characteristics investigation, these four laminate plates were tested in a large scale low speed close - looped wind tunnel and the cooling effectiveness were obtained
在冷卻特性實驗部分，在大尺寸低速迴流式風洞中對上述四塊層板進行了冷卻特性實驗，獲得了其綜合冷卻效率。
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