yawing 中文意思是什麼

yawing 解釋
擺頭運動
  1. The study object in this paper is a lunate caudal fin imitating tuna - tail with the mode combined swaying and yawing in uniform flow which is incompressible and inviscid

    本文的研究對象是類似於金槍魚尾鰭的一個推進裝置，它是一個月牙形的尾鰭。
  2. With the increase of the relative velocity, the variations of side force coefficient and yawing moment coefficient of the overtaken vehicle will increase linearly

    被超車側向力系數和橫擺力矩系數的變化量隨兩車相對車速的增加呈線性增加的趨勢。
  3. They were subject to violent yawing at low wind speeds.

    它們在低風速下會發生強烈的偏離。
  4. She headed nearly due south, yawing, of course, all the time

    船頭幾乎朝向正南方，當然不時略有偏差。
  5. Thirdly, by neglecting the coupling influence, the control laws of pitching, yawing and sloping movements are designed separately with frequency domain analysis and root locus, and then the parameters of the controller are chosen

    第三，忽略耦合影響，將控制系統分為俯仰、偏航、傾斜三個相互獨立的通道，用頻域分析法和根軌跡法設計控制律、選取控制器參數。
  6. The complicated aerodynamics characteristic of spinning projectile with lateral jets and with attack angle is studied detailedly. the formation and changes are analyzed including magnus force, normal force, yawing moment, pitching moment and pressure center

    系統分析了旋轉側噴彈丸復雜的空氣動力學特性，分析了馬格努斯力系數、法向力系數、偏航力矩系數、俯仰力矩系數和壓力中心等參數的產生機理和變化規律。
  7. To study the way to settle the yawing and rolling stability

    研究解決無尾布局橫航向穩定性的氣動力措施。
  8. The results of simulation given in this paper indicate that the sins / dtu can effectively improve on the following navigation parameters : velocity, latitude and longitude, yawing and attitude angle, position of track - reckoning etc

    模擬結果表明，該組合導航系統可有效地減小速率、經度和緯度、航向角和姿態角及航跡推算下的位置等導航參數的累積誤差。
  9. Then in allusion to biased momentum wheel system, based on classical control system a pid controller was design about pitching channel. according to specialty of roll - yawing channel, this paper discuss long - time cycle movement and short - time cycle movement. when design the control method of long - time cycle movement, whiff thruster is used to assistant the control system. when design the control method of short - time cycle movemen, in order to sovle the problem of coundn ’ t abtain the angular velocity signal, nonminimum phase controller advanced by terasaki is used

    然後針對偏置動量飛輪系統，基於經典控制理論設計俯仰通道的pid控制律，根據滾動?偏航通道耦合的特點，分別討論了由軌道角頻率和章動頻率引起的長周期運動和短周期運動。其中長周期運動控制律設計時，結合了噴氣推力控制來輔助偏置動量控制;短周期運動控制中，為了解決不能獲得角速度信號的問題，採用terasaki提出的非最小相位控制器進行控制。
  10. For vehicles overtaking, with the increase of the other vehicle speed, pressure and side force of the overtaken vehicle also increase, especially for side force, its change is obvious, but with the increase of distance, the result is contrary. when the overtaken vehicle lies in front of the other, the yawing tendency is strengthened. and when vehicles stand at parity, the roll tendency is also strengthened

    在超車過程中，被超車輛的車身表面壓力和受到的側向力隨著超車速度增大而加強，隨著間距增大而減弱，但增大超車速度時，側向力變化顯著;被超車車輛在超車車輛前方時橫擺趨勢增強，與超車車輛同位時側傾趨勢加大。
  11. Thirdly, based on the thought of motion - based ambiguity resolution, a bi - satellite attitude determination method using non - planar baselines is developed making full use of the satellites ’ geostationary property. focused on movement mode demands, the dissertation brings forward a method by large angle yawing movement accompanied with small angle pitch vibration to efficiently solve the rank deficiency problem of vehicle planar motion

    再次，在基於運動解模糊的思想基礎上，充分利用北斗衛星對地靜止的特性，提出了一種非共面基線的雙星定姿方法，並重點分析了對運動特性的要求，提出通過伴隨小幅俯仰擾動的大角度偏航運動方式來有效解決載體平面運動的觀測矩陣秩虧問題。
  12. This paper studies optimal helicopter flight operations in the event one - engine failure. a three - dimensional point mass with a yawing motion of uh - 60a has been used to study rto and cto from an elevated heliport or from a heliport, a first order dynamic of the oei contingency power is considered. flight after engine failure are formulated as nonlinear optimal control problems

    雙發及多發直升機單發失效后，直升機飛行所需要的功率由剩餘發動機提供，而在某些需要大功率的飛行狀態時，如起飛狀態、著陸狀態等，剩餘發動機提供的功率可能滿足不了，這就需要對剩餘發動機的可用功率進行合理利用。
  13. The problem is then fed to a nonlinear programming routine to solve for all parameters. the flight dynamics model with yawing motion of uh - 60a is given, scale factors of state variables and control variables are applied based on the consideration of algorithm convergence. then, the optimization of trajectories is expressed as optimal control problem with a performance index constrained by helicopter performance limits, faa regulation and so on

    首先，建立帶偏航運動的直升機點質量模型，然後對狀態變量和控制變量進行無量綱處理，因為狀態變量和控制變量量值相差較大，這使得優化演算法收斂效果變差，所以需要選擇適當的縮放因子，最後把直升機單臺發動機停車后的飛行軌跡表示成一個最優控制問題，即在考慮直升機性能限制和far規范后，指定一個優化性能指標，選擇合適的路徑約束，然後再解最優控制問題。
  14. 2 ) the project has both rolling instability and yawing instability. but the moment value is small

    2 ）該布局滾轉和偏航均不穩定，但力矩值都較小。
  15. But the interaction on each other is the same if they have the same velocity. pressure has no distinct changes, but the change of side force is obvious. with the increase of vehicle velocity, the yawing tendency is intensified, and the roll tendency is also intensified during vehicles standing at parity

    在會車過程中，隨著速度的增大，車輛間的相互作用逐漸加強;隨著車輛間距的增大，車輛間距的增大致使車體間相互作用減弱，但由於車輛等速造成車體間相互作用相等;車身表面壓力在交會過程中變化不大，但側向力變化較大，隨著速度的增大，側向力變化明顯，車輛在剛交會時橫擺趨勢增大，在車體同位時側傾趨勢加強。
  16. According to the theory of boundary layer control and aerodynamics of delta wing at medium attack angle, the generation mechanisms of rolling, pitching, yawing moments, which are produced by coupling between the microactuator array and boundary layer near the leading edge, have been discussed

    首先，結合空氣動力學的邊界層控制原理以及三角翼在中等攻角條件下的氣動特徵，詳細討論了微致動器陣列通過與前緣邊界層的耦合產生三角翼翻滾、俯仰和偏航等力矩的機理。
  17. Image movement that is brought by aeroplane movement ( including the forward movement, pitching and yawing movement ) will be eliminated, and then image quality of camera will be improved after the research

    通過本文的研究，消除機載平臺產生的像移（指飛機前向飛行和俯仰偏航運動引起的像移誤差） ，提高相機成像質量。
  18. Yawing in anchoring

    錨泊中平擺
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