bell helicopter 中文意思是什麼

bell helicopter 解釋
貝爾飛機公司
  • bell : n 1 貝爾〈姓氏〉。2 Alexander Graham Bell 〈1847 1922，生於蘇格蘭的美國人，電話發明者〉。n 1 鐘，...
  • helicopter : n 直升機。vt 用直升機載送。 helicopter sb aboard the ship 用直升機把某人送到船上。vi 乘直升機。n ...
  1. Helicopter is hard to hover precisely for its bad stability. ordinarily, it is improved by flight control system, such like rotorcraft unmanned aerial vehicles which use bell bar or bell - hiller stabilizer bar. bell stabilizer bar, fixed across with teetering main rotor, consists of a bar and masses at two ends

    貝爾穩定桿由一桿與兩質量塊組成，它與貝爾直升機的蹺蹺板旋翼垂直交叉放置，這種旋翼裝置有助於加大角速度阻尼，改善貝爾直升機的穩定性，但同時也降低了操作性。
  2. Bell boeing helicopter

    貝爾-波音直升機
  3. But the variation of its aerodynamic forces will induce flapping motion and produce the cyclic pitch on the main rotor blades by the bell mixing mechanism. in order to study the effect of bell - hiller stabilizer bar on helicopter stability and control, this paper first analyze the function and the principles, give the flapping equation and a flight dynamic model with bell - hiller stabilizer bar. and then works over the stability and control of uav r - 50 in hover and cruise condition, and analyzed the influence from parameters of the bar to it

    為了深入研究希勒伺服旋翼對直升機穩定性和操縱性的影響，本文首先分析了希勒伺服旋翼的功能和工作原理，推導了伺服旋翼的揮舞運動方程，建立了帶有希勒伺服旋翼直升機的飛行動力學模型，然後以yamahar - 50無人直升機為例，分析該直升機在懸停和前飛時的平衡、穩定性和操縱性，在此基礎上進一步研究希勒伺服旋翼設計參數變化對直升機穩定性和操縱性的影響。
  4. Reveals the secrets of the world beyond and bears the symbols of an airplane, a helicopter, a ufo, a lotus, a dragon, a phoenix, a church bell, an eagle, and a harp, which

    蘊含超世界奧秘，代表修行歷程的腳?天飾，有飛機直升機幽浮蓮花鳳凰鐘老鷹豎琴。
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