螺旋槳式 的英文怎麼說
中文拼音 [luóxuánjiǎngshì]
螺旋槳式
英文
propeller type螺旋槳式飛機 propeller aircraft; 螺旋槳式風力發電機 propeller generator; 螺旋槳式風速表 helicoidal anemometer; 螺旋槳式風速計 [工業] propeller anemometer; 螺旋槳式攪拌混合器 propeller mixer; 螺旋槳式攪拌器 propeller agitator; 螺旋槳式流量計 screw-type flowmeter; 螺旋槳式水輪機 propeller turbine- 螺 : 1. [動物學] (軟體動物) spiral shell; snail; conch 2. (螺旋形的指紋) whorl (in fingerprint)
- 旋 : 旋Ⅰ動詞1 (旋轉) whirl 2 (用車床切削或用刀子轉著圈地削) turn sth on a lathe; lathe; pare Ⅱ名詞...
- 槳 : 名詞1. (劃船用具) oar; paddle 2. (螺旋槳) propeller
- 式 : 名詞1 (樣式) type; style 2 (格式) pattern; form 3 (儀式; 典禮) ceremony; ritual 4 (自然科...
- 螺旋槳 : [機械工程] screw propeller; propeller; screw; blade; airscrew; propeller screw; propelling screw...
- 螺旋 : 1 (具有螺紋的圓柱體 屬于斜面類的簡單機械) corkscrewspin; screw; spiral; helix 2 (螺旋現象;尾旋...
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In this dissertation, through computer simulation, the problems of modeling, control and guidance of auvs are presented. the first part of this dissertation addresses the problem of dynamically modeling of auvs, and derives thrusters " two - dimension nonlinear dynamic model, which has axial flow speed and propeller rotational velocity as two state variables, voltage or current of motor as inputs, and thruster force and torque as output. the second part focuses on the nonlinear adaptive sliding mode control of auvs in diving plane and steering plane
本論文系統研究了自主式水下航行器的建模、非線性自適應滑模控制、以及深度調整和水平面導引方法等問題,具體成果和創新點如下1 、根據流體力學理論,建立了螺旋槳推進器的動態模型,它以螺旋槳來流速度v _ p和螺旋槳轉速n為狀態變量,以電機施加轉矩為輸入,螺旋槳推力t和轉矩q為輸出。First came the turbojet, now obsolete, then the turboprop, which is still found onboard small planes
最開始的引擎是渦輪噴射式,目前已淘汰;然後是渦輪螺旋槳式引擎,現在仍可在小飛機上看到。Based on the green ' s formula and the assumption of the propeller blade ' s thin sections, a lifting - surface method of propellers with the vortex lattice and equal source panel distributions on the mean camber surface has been introduced for the prediction of steady propeller ' s hydrodynamics in this paper. an approximate kurta condition was applied
基於creen公式和薄翼理論假設導出的升力面方法,採用在螺旋槳拱弧面上分佈離散渦、源布置方法預報均勻流場中的螺旋槳的定常性能,螺旋槳尾渦面上壓力連續性條件採用近似的kutta條件處理。For getting the runner characteristics more correctly, researching the representation of runner characteristics of the kaplan turbine in this paper, and using this method of modifying runner characteristics to calculate the transient of hydraulic power station. improving the calculating model of the axial thrust in the kaplan turbine ' s transient. base on the theory of screw propeller without any boundary, using the theory of screw propeller with pipe, and the formula to calculate the dynamic axial thrust during transient is developed
本文對轉槳機組在過渡過程中的槳葉劃水產生水推力的數學模型進行了改進,在原來使用無邊界螺旋槳進行等效的基礎上,使用了導管螺旋槳對轉槳機組中的槳葉劃水進行等效,並且比較詳細的分析了影響轉槳機組軸向水推力的各個因素,以及給出了動態計算軸向水推力的公式,通過計算表明,使用改進后的動態水推力計算模型得到的結果能較好的反應實測的動態軸向水推力。In - situ method of testing propeller fans for reliability
檢測螺旋槳式風機可靠性的現場試驗法Using a combination method of the lifting surface theory and acoustic technique, the effects of different diameters, skews and rakes on the discrete noise of the propeller are studied by the numerical method and some useful results for engineering are presented in this paper
利用升力面理論和聲學方法得到的離散譜噪聲的預報公式,對螺旋槳直徑、側斜、縱傾變化對離散譜噪聲的影響作了數值計算,並得到了工程上有實用意義的結果。Jet planes have displaced propeller ones
噴氣式飛機取代了螺旋槳飛機。Compared with jet planes and propeller - driven aircrafts, the radar echoes of helicopters have different characteristics
與噴氣式飛機和螺旋槳飛機相比,直升機的雷達回波具有不同的特點。The paper introduces the development of podded electric propulsion system and the structure and the working principle of typical podded electric propulsion system are also introduced
摘要介紹了吊艙式電力推進系統的發展情況及典型吊艙式電力推進裝置的結構及工作原理,分析了其相對于傳統的柴油機螺旋槳推進裝置的優越性。The loading of the engine will be lowed and the revolution will be raised at the same time. it is effective when the propeller trailing edge cutting is performed outer radius
因為在0 . 5r以外作隨邊切割方式有較佳的效果,所以本文決定採用在螺旋槳外半徑處作非線性的隨邊切割方式。The primary purpose of this paper is how to solve the overloaded propeller ' s condition. the style of propeller trailing edge cutting and shave on the pressure surface is adopted. the propeller ' s actual effect pitch will be reduced which cause the propeller ' s torque down
本文主要是考慮螺旋槳出現負荷過重時如何處理的問題,所以採用槳葉隨邊切割並在葉面處將翼型修順的方式,實質上是切割后導致螺旋槳實效螺距的減小,從而使螺旋槳吸收的轉矩降低來達到主機負荷降低的目的。The screw propeller which is used by ships abroad is one typical application of ejecting mode because it is easy to manufacture and install and is reliable. but it has many shortcomings such as inefficiency, large dimension and heavy weight. therefore, it is very difficult to apply the screw propeller to micro mobile robot in liquid
螺旋漿推進器既具有容易加工、可靠性高和安裝簡便等優點,也具有能源效率低,結構尺寸和重量大,對環境擾動大,噪音大,起動、加速性能差以及運動靈活性能差等缺點,因此在把螺旋槳推進方式應用到微機器人上時存在許多困難,有必要研究採用其它推進方式的在液體中運動的微機器人。The computer program has following advantage : the solution of main blade is by iterative scheme in time domain, the kutta condition is used by explicit equal pressure condition, the jacobian matrix which can reflect the influence on the difference between the upper and lower surface at trailing edge by dipole is calculated in each iterative procedure, in order to improve the convergence of iteration
本文編制的螺旋槳非定常性能預報程序是針對主葉在時域中迭代求解的, kutta條件採用的是顯式的等壓條件,求解中為了提高迭代的收斂性,在每次迭代中都重新計算反映偶極子強度對尾緣處上下表面壓力差影響的jacobi矩陣。The effects of the slipstream boundary are solved by the slipstream boundary condition met using the so - called vortex image method. based on these considerations, the change in the circulation around the wing is obtained, and the velocities induced by the original vortices and the imaged vortices at the wing are subsequently derived. the present research also gives an analytical expression of the drag change due to the slipstream interference
對于滑流邊界的影響,用「鏡像法」來使滑流邊界條件得到滿足,導出了由於滑流影響機翼環量的改變,求得渦及其鏡像在機翼處的誘導,並首次導出了螺旋槳滑流對機翼阻力特性的影響的解析表達式。This paper has presented the calculation formula and numerical solution methods to determine the range and volume of partially cavity, supercavity by using surface panel method, and has predicted the range and volume of unsteady cavitation of propeller by using surface panel method for the first time inland
本文敘述了應用面元法確定非定常螺旋槳局部空泡、超空泡的范圍和體積的計算公式和數值求解方法,在國內首次應用面元法預報了螺旋槳非定常空泡的范圍和體積。According to the same method, we model three different laminated propeller. we get the optimal laminated method through comparing the result, and cater to strength check standard. now, we accomplish to the design of structure and laminated method on propeller
將選擇的三種鋪層設計方式按照同樣的方式進行模擬,比較其結果得到一種較佳的鋪層設計方法,經強度校核滿足要求,初步完成復合螺旋槳的結構設計和鋪層設計。分享友人