flutter speed 中文意思是什麼

flutter speed 解釋
顫振速度
  • flutter : vi 1 拍翅振翼;(旗幟)飄揚。2 顫動,(心)急跳,(脈搏)浮動。3 (心緒)不寧,坐立不安。4 〈口語...
  • speed : n 1 快,迅速。2 速率,速度。3 (汽車的)變速器,排擋。4 (膠片,照相紙)感光速度。5 〈古語〉興隆...
  1. A fourth model may be tested for flutter speed.

    第四個模型可用來進行顫振試驗。
  2. To a series of dampings, velocities and frequencies, the linear interpolation is applied and the flutter speed and flutter frequency are obtained

    對得到的一系列的阻尼、速度和頻率進行了線性插值,從而得到顫振速度和顫振頻率。
  3. This dissertation presents how to use the ultrasonic motor as an actuator to suppress the flutter of a two - dimensional airfoil section with a control surface. the ultrasonic motor, which features simple structure, high torque at low speed, small size, low weight and no electromagnetic contamination, is a promising actuator for the flutter suppression of small aircraft

    超聲電機以其結構簡單緊湊、轉矩/質量比大、低速大扭矩、直接驅動,動態響應快、斷電自鎖和不產生磁場且不受外界磁場干擾等優點,有望成為一種非常有前途的作動器,用於小型飛機的機翼顫振主動抑制。
  4. Analysis of panel flutter in high speed flight vehicles

    高速飛行器壁板顫振的分析模型和分析方法
  5. At first, the finite element formulation is presented to determine the flutter characteristics of laminated panels at elevated temperature. then both the linear and nonlinear panel flutter characteristics are analyzed. the panel flutter boundaries are finally determined and the effect of temperature, airflow speed, etc, on the panel flutter characteristics is analyzed

    為此,本文首先建立了復合材料壁板熱顫振的有限元模型並對受熱壁板的線性和非線性顫振特性進行了研究;最後確定了壁板的顫振邊界,分析了溫度、來流速度等因素對壁板顫振特性的影響規律。
  6. Dynamic analysis of this bridge showed that the bridge ' s seismic response was small and flutter critical wind speed was improved to a high level

    最後對該種橋型的空氣動力穩定性進行了評估。證明大跨索桁橋是一種抗風性能優良的新橋型。
  7. The hairs flutter in moving water as flags do in moving air, and the way in which they flutter contains information about the direction and speed of the water moving past them

    絨毛在水中就像氣流中的旗幟一樣擺動,它們擺動的方式包含著流經它們的水流方向和流速信息。
  8. The nonlinear panel flutter equations are also solved in time domain. the limit cycle flutter characteristics of nonlinear panel flutter are investigated and the effect of temperature and airflow speed on the nonlinear panel flutter characteristics is studied

    通過對非線性壁板顫振方程的時域求解,研究了壁板的極限環顫振特性,得到了溫度、氣流速度等因素對非線性壁板顫振特性的影響規律。
  9. Accurate calculation of aircraft steady and unsteady aerodynamics and flutter characteristics, especially in the transonic speed range is a crucial problem for aircraft designers. it is very important for us to develop an efficient, accurate, robust navier - stokes / euler flow solver that could be used to study transonic steady and unsteady flowfields

    飛行器的定常和非定常氣動力的準確數值求解及顫振特性研究,特別是跨音速范圍內的準確數值求解及研究,一直以來都是飛行器設計工作者必須面對的重要研究難題。
  10. 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。
  11. Especially, the technique proposed here can be expanded to the flutter test with variable speed. the related software is developed on labview for windows

    並通過數值模擬和某型飛機氣彈模型低速風洞顫振試驗驗證了方案的有效性、可靠性和工程實用性。
  12. 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。
  13. The numerical simulations agree well with the wind the tunnel experiments, and the critical speed is increased by 13. 4 %. chapter 5 presents the robust flutter suppression of the airfoil

    數值模擬和風洞實驗表明,這兩種控制器是有效的,可將系統的顫振臨界速度提高23 . 4 % 。
  14. The influence of the blowing factors to the flutter and the lift coefficient is analyzed. secondly, the self - induced vibration of seals are analyzed by fluid - structure coupling numerical method. the self - induced oscillation of the seals will occur at large rotational speed, however, this phenomenon ca n ' t be simulated with the

    採用本文的流固耦合方法成功地捕捉到頻率鎖定的現象,且發現隨著轉速的提高,固有頻率也增大,從而證明高轉速下密封轉子會發生自激振動,傳統的剛度阻尼方法對此是無法解釋的。
  15. Turbulence response. the functions of the methods are investigated by computer simulation and further examined by using flutter testing data of low - speed wind - turne of some aeroelastical modes. the related software is developed on matlab and labview for windows

    結果表明,本文方法在精度、有效性和數值特性等方面優于現有的時頻域濾波方法,並具有較好的應用特性,可以滿足工程應用的實際需求。
  16. 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。
  17. 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
  18. Panel flutter is a classical supersonic aeroelastic phenomenon that is usually accompanied by temperature elevation on the outer skin of high - speed aerospace vehicles

    壁板顫振是發生在高速飛行器上的一種典型的超音速氣動彈性現象。
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