飛機顫振 的英文怎麼說
中文拼音 [fēijīzhànzhèn]
飛機顫振
英文
aircraft flutter-
Flutter boundary prediction ( fbp ) based upon sub - critical turbulence response analysis is an important research work in flutter test field of aircraft
基於飛機結構亞臨界響應分析的顫振邊界預測（ fbp ）技術是顫振試驗研究的重要課題。On semi - active aircraft flutter control by er fluid damping pivot
電流變液在飛機操縱面顫振半主動控制中的應用研究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。Then the steady and unsteady subsonic, transonic and supersonic viscous flows around airfoil and some aircraft are numerically simulated. the 3 - dimensional unsteady navier - stokes equations are solved using the implicit lu - nnd algorithm, with baldwin - lomax turbulent model. on the basis of simulating unsteady viscous flow, coupling the structure dynamics equations, the problems of static aeroelasticity and flutter are investigated for wings and elevator
在模擬非定常粘性繞流的基礎上，與顫振運動方程相耦合，分別對機翼和全機流固耦合現象中顫振問題進行了研究，準確求解跨音速顫振臨界速度，分析機翼和全機的從亞音速到超音速范圍的顫振規律，並研究分析了機翼飛行迎角變化對顫振速度的影響。Frequency - domain gtls identification combined with time - frequency filtering for flight flutter modal parameter identification
基於時頻域濾波及頻域廣義整體最小二乘辨識的飛機顫振模態參數辨識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。The theory analysis and method principle are presented the characteristics of the two methods are studied by computer numerical simulation. the results show that both the methods are reasonable and feasible. focused on the features and requirements of flutter test data processing, the methods presented here are used to pickup the major information as a pre - processing technique the application scheme is brought out for flutter boundary prediction based on subcritica
根據顫振試驗的原理和觀測信號特點，本文將所提出的兩種時頻域濾波演算法引入到了飛機結構亞臨界響應分析的顫振邊界預測（ fbp ）研究當中，給出了一種新的顫振邊界預測方案，即通過聯合時頻分析與時頻域濾波提取有效信號再進行模態參數提取與顫振邊界預測。According to the features and requirements of flutter test signal, the method for edge detection is used to pickup the major information of signal image, and a new technique is brought out for the flutter boundary prediction
基於多尺度圖像邊緣檢測技術，本文研究了飛機結構顫振的邊界預測問題，給出了一種新的穩定性參數估計方法。It incorporates organically the flight test data and the flutter theory model by the structured singular value theories, to process the flutter boundary estimate
利用結構奇異值理論將顫振理論模型和試飛數據有機結合起來，進行了顫振邊界預測。As a special form of vibration, flutter is a major feature closed with the run environment and safety of aircraft, which is an important project of human - machine - environment engineering
作為一種特殊的振動形式，顫振與飛行器的運行環境和安全性密切相關，是人機與環境學科的一個重要研究課題。分享友人