直葉槳 的英文怎麼說

中文拼音 [zhíyèjiǎng]
直葉槳 英文
straight oar
  • 直 : Ⅰ形容詞1 （成直線的; 硬挺的） straight; stiff 2 （跟地面垂直的; 從上到下的; 從前到后的） erect; v...
  • 槳 : 名詞1. （劃船用具） oar; paddle 2. （螺旋槳） propeller
  1. General specification for helicopter blade lead - lag damper

    直升機槳葉擺振阻尼器通用規范
  2. If, however, the blades are not tilted, the helicopter can be made to hover motionless in the air.

    然而，如果槳葉不傾斜，就能使直升飛機在空中懸停不動。
  3. Frequency tests of helicopter rotating rotor blade

    直升機旋翼旋轉狀態下槳葉固有頻率的測試
  4. Requirements of packaging, transportation and storage for helicopter blade

    直升機槳葉包裝運輸和貯存要求
  5. Among others, one method to solve this problem is to install lead - lag dampers. the conventional configuration for installing dampers is to put them between blades and hub. in 1990s, eurocopter began to use the inter - blade dampers in ec155 which means to put every damper between two adjacent blades

    傳統的減擺器布置是槳葉-槳轂式;上個世紀90年代，歐直公司開始在ec155上使用葉間減擺器，減擺器不是布置在槳葉和槳轂之間，而是布置在相鄰兩片槳葉之間。
  6. Main rotor blades were severed within the first few metres through contact with small trees and rocks, and the underbelly and right side of the fuselage were damaged substantially

    主旋翼槳葉在直升機沖前首數公尺處因碰觸地面矮小樹叢和石塊而斷裂，機腹和右側嚴重損毀。
  7. The flight test of ec155 tells us that inter - blade dampers can work very well in stabilizing the system ; another advantage of this configuration is it can make the hub system simpler and reduce the drag of air to the hub which is very important for helicopters with 4 or more than 4 blades

    Ec155的飛行試驗證明，這種減擺器布置方式對提高穩定性效果明顯;這種布置方式的另外一個優點是可以簡化槳轂，降低其氣動阻力，對多槳葉（四片和四片以上）直升機有重要意義。
  8. In chapter 3, the non - linear equation was linearized with the jacobi matrix, and then the linearized equation was transformed into fixed frame to analyze the stability problem with eigenvalue method ( on - ground or hovering ) or floquet theory ( forward flight ). meanwhile, the equation was perturbed by sweep frequency excitation from steady state to get transit decay of lag response which was then transformed into fixed frame with a numerical fourier coordination transformation ( fct ). the fixed frame response along with the body response was analyzed via an fft to determine modal frequencies

    然後，在穩態響應的基礎上利用雅各比矩陣對非線性方程進行了線化，線化后的方程利用多槳葉坐標變換轉換到固定系下后，利用直接特徵值分析（地面、懸停）或floquet理論（前飛）對系統進行了穩定性分析;同時，對系統進行了瞬態響應分析;在系統達到穩態的基礎上進行掃頻激勵，用fft變換求得系統頻率，進而用移動矩形窗方法分析得到系統的阻尼。
  9. Examination of the wreckage trail indicated that substantial damage was inflicted on the aircraft, in particular the main rotor blades, within the first few metres after initial impact

    墜機路線調查顯示，直升機尤其是主旋翼槳葉，在首次撞擊后的最初數公尺受損嚴重。
  10. To improve the stability, one common method is to install dampers at the roots of blades. however, commonly used dampers can hardly meet different demands when helicopter working in different conditions

    為提高旋翼/機體耦合動穩定性，一般採用在槳葉根部安裝減擺器的方法，但目前常用的減擺器很難滿足直升機不同工作狀態下對擺振器阻尼的不同需求。
  11. This dissertation mainly studies how to eliminate extra force to finish loading test of a certain helicopter roll booster wear test - bed

    本文主要討論某型直升機槳葉助力器壽命試驗臺的液壓伺服加載系統的研製及其消除多餘力的方法。
  12. The theoretical deduction in chapter 3 shows that the shape of load distribution used in the arithmetic is a decisive fact of the error margin size, the more the adoptive shape looks like the actual case, the smaller the error margin will be, therefore the tilt parabola shape can instead of the actual shape of load distribution in the permissible error margin when we predicting constant loading noise caused by the tail rotor of helicopter

    在第三章中通過理論推導和計算比較發現，在預測直升機尾槳定常載荷噪聲時，其誤差大小取決于演算法中槳葉弦向載荷分佈的數學描述與實際弦向載荷分佈的吻合程度，而選取一種與實際弦向載荷分佈較為相似的斜拋物線形來預測噪聲所導致的誤差是很小的。
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