氣動力效率 的英文怎麼說

中文拼音 [qìdònglìxiàolǜ]
氣動力效率 英文
efficiency; aerodynamic
  • 氣 : Ⅰ名詞1 （氣體） gas 2 （空氣） air 3 （氣息） breath 4 （自然界冷熱陰晴等現象） weather 5 （氣味...
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 效率 : productiveness; efficiency; productivity; workpiece ratio
  1. For increasing the effective material peak - value power ( empvp ), solving the contradiction between enhancing the pmsm ' s flux - weakening capability in the electromotor state and reducing the pmsm ' s connatural adjustment ratio in the dynamotor state and improving the efficiency of the pmsm, some solving method are taken as follows : the influence of length / diameter ratio to the empvp is analyzed, and the optimum size of length and diameter is chosen

    主要是從提高電機的有效材料峰值功率、解決pmsm提高電動機運行狀態時的弱磁擴速能力和減小發電機運行狀態時的電壓調整率之間的矛盾及提高電機的效率著手，分析了長徑比、氣隙長度對有效材料峰值功率的影響，並確定了它們的最佳尺寸。
  2. Moreover, the system of powdered coal conveying with primary air is the most important tache, whether the distribution of primary air is even or not directly relates to whether the distribution of powdered coal is even or not in all firing implement and nozzles, sequentially directly relates to whether it is hard to take fire, whether the fire is stable, whether there is coking and how about the heat efficiency of the boiler, hi addition, if there is jamming and deflagrate in the system of powdered coal conveying with primary air, severe safety accident can be resulted

    良好的煤粉配風是建立合理的爐內空氣動力工況和穩定燃燒的必要條件。而其中一次熱風送粉系統又是最重要的一個環節，一次風配風是否均勻直接關繫到煤粉在各燃燒器和各噴嘴中的分佈是否均勻，從而直接關繫到著火是否困難、火焰是否穩定、局部是否結焦以及鍋爐的熱效率高低。若一次風送粉系統發生堵塞和煤粉爆燃則可能引發嚴重的安全事故。
  3. In the model the film thickness in the passage was obtained at first using two phase flow theory ; then, similar analysis solution of concentration distribution of the pollutant in liquid phase and biofilm was obtained through mass component equation of pollutant in gas - liquid phases combined with the biochemical kinetic equation of mass transfer in biofilm and dismission of oxygen limited ; at last, the distribution of pollutant along the filter height and the waste gas purification efficiency were obtained

    該模型首先運用兩相流理論獲得了通道內液膜厚度，然後通過污染物在氣相、液相的質量組分方程，結合生物膜內的傳質與不?慮氧限制的生化反應動力學方程，獲得了污染物在液相和生物膜中濃度分佈的近似分析解，最終得到污染物在氣相中沿塔高的濃度分佈及廢氣凈化效率。
  4. B87c breaker is a pneumatic instrument manufactured with the mature technology of america gardener denver corporation. it is more powerful in breaking ferroconcrete, rocks and asphalt. boasting greater efficiency and durability, it suits the requirements of breaking outsized, super - thick and hard objects. it is ideal machinery for the substructural construction of mines, bridges, roads and civil infrastructure

    B87c破碎機採用美國迦納德?丹佛氣動集團公司成熟技術，是以壓縮空氣為動力的破碎工具，能高效完成鋼筋混凝土、巖石、瀝青等破碎工作，具有馬力更大、效率更高、壽命更長等特點，特別適宜對特大、特厚、特堅硬物體的破碎作業，是礦山、橋梁、道路、市政建設等基礎工程施工的理想工具。
  5. Our experiment indicates that hb - liposome - pdt has good effect to pws ' s animal model - leghorn cock comb at 0. 25 and 0. 5mg / kg drug and in combination with 20 min irradiation of 100mw / cm2

    竹紅菌乙素一脂質體對來亨雞雞冠的光動力療效觀察表明，銅蒸氣激光混合光的照射下，在100mwcmz的功率密度照射20min ，給藥劑量為0
  6. Variable diameter rotor is an effective method to improve the aerodynamic performance of tilt - rotor in both hover and cruise state. on the basis the research before, the variable diameter tilt rotor structure design has been finish, and in virtue of the technology of virtual prototyping to simulate and analyze the kinetic, dynamic and intensity property of it

    變直徑傾轉旋翼能有效的改善傾轉旋翼機懸停和巡航狀態下的氣動效率，本文提出了變直徑傾轉旋翼試驗模型設計方案，完成了可變直徑傾轉旋翼的結構設計，並利用虛擬樣機技術對變直徑傾轉旋翼的運動特性、結構動力學特性以及結構強度進行了分析、研究。
  7. It is studied that the formation mechanism of taylor bubble and its control method in gas - liquid two - phase flow, which affects the pressure balance and mechanical driving efficiency in the flow of petroleum engineering. experiments show that the formation of taylor bubble in gas - liquid two - phase flow is due to the intensive congregation and amalgamation of small bubbles driven by void fraction waves and that the highly turbulent flow is able to restrain this formation. thus, the flow regime transition may be checked by increasing the flow turbulence and controlling the disturbed frequency

    對大管徑氣-液兩相流動中嚴重影響壓力平衡與機械驅動效率的段塞流生成機制和控制方法進行了研究，實驗證明段塞流的形成是由於空隙率波的大幅度增長使氣泡高度集中，並形成聚並所致。強湍流運動可以抑制taylor泡的形成。因此，通過強化湍流或控制擾動頻率可以對氣泡聚並起明顯的抑制作用。
  8. On one hand, it may exert damping on the armature of torque motor and overcome self - excitation of jet pipe. one the other hand, it may enlarge magnetic permeability of working clearances and improve magnetic circuit efficiency of torque motor to boost dynamic response speed of servo valve

    一方面可增大力矩馬達工作氣隙部分產生的阻尼，從而可以抑制射流管的自激，另一方面又可增大工作氣隙的導磁率，改善力矩馬達部分的磁路效率，從而提高伺服閥的動態響應速度。
  9. Based on the special property of magnetic fluid ( mf ), we fill the magnetic fluid into the working clearances of the servo valve torque motor. one side, the magnetized magnetic fluid can exert a damping torque on the torque motor armature and reduce vibration of the armature ; on the other side, it can improve the magnetic circuit efficiency of the torque motor because of the magnetic fluid ’ s larger magnetic permeability

    基於磁流體所具有的特殊性質，將磁流體添加到伺服閥力矩馬達的工作間隙中，一方面磁流體被磁化后可增大銜鐵的阻尼力，減少振動;另一方面由於力矩馬達氣隙中磁導率的提高，使氣隙中的磁通量增大，力矩馬達的磁路效率和輸出扭矩將增大，因此可以提高力矩馬達的固有頻率和伺服閥的響應速度。
  10. The ejected coolant interacts with the external flow near the endwall and generates aerodynamic and thermodynamic losses in the process. this reduces turbine stage efficiency and together with the consumption of cooling air is detrimental to the overall cycle efficiency

    但這種方法中噴射的冷空氣與端壁附近的外流場相互作用產生氣動力和熱動力損失，並且消耗冷卻空氣，從而損害渦輪的整體循環效率。
  11. ( 2 ) on the leading edge, the film cooling effectiveness at the zone immediately downstream of the cooling holes is affected by blowing ratio and mainstream reynolds number, while the effects are not important in the downstream zone far from the cooling holes. ( 3 ) on the front half of pressure surface, the effectiveness increases with decreasing blowing ratio at the downstream near the cooling row and it is contrary at the downstream far from the cooling row. ( 4 ) on the rear pare of the pressure surface, the effectiveness decreases with increasing blowing ratio and does not vary so much downstream in the cases of higher blowing ratio

    研究結果表明葉片吸力面端壁附近區域壓力系數分佈呈現出較強的三維特性，動葉吸力面尤其明顯；氣膜孔流量系數隨吹風比的增加而增大，在高吹風比情況下，流量系數逐漸趨于常數；在不同型面區域，冷卻效率分佈有較大的差異，而且吹風比與主流雷諾數的影響程度也不盡相同；低吹風比下，孔出口下游附近可以得到較好的冷卻，中、高吹風比下，冷氣射流在加速流動主流的作用下返回壁面進行二次冷卻，孔下游較遠區域可以得到較好的冷氣覆蓋。
  12. Leaving the rated load, especially with low load and free running operation, ihe efficiency of turbocharger and ratio boost pressure decrease, leading to the shortage of air in cylinders and worsening of combustion, and the economic, power and exhaust performances deteriorate

    當偏離標定點，尤其在低負荷和空轉工況工作時，增壓器效率降低，增壓壓力明顯下降，導致氣缸供氣不足，缸內燃燒不良，柴油機的經濟性能、動力性能和排放性能將嚴重惡化。
  13. Diesel - hydraulic locomotives are slightly more efficient than diesel - electrics, but were found in many countries to be mechanically more complicated and more likely to break down

    這個是你錯了，對于內燃機車來說，液力傳動是比電氣傳動效率高的，因為內燃機所謂的電氣傳動不僅僅有電動機，還有發電機，都有效率損失。單純講電機和液力的話，無疑電機效率更高。
  14. Much works has been distributed to the development of a vacuum system to simulate the outer space and a measurement system to test the arcjet performance. ignition experiments in various operational modes have been done with argon as propellant. macroscopical working parameters including thrust, mass flow rate, voltage, current, inlet pressure and vacuity are obtained by the test measurement system and actual performance parameters including specific impulse, thrust efficiency, ratio of thrust and power and ratio of power and mass flow are calculated

    以氬氣作為推進劑，在不同工況下進行點火實驗，測量獲得了其工作推力、電弧電壓和電流、推進劑流率和弧室壓力等宏觀參數，得到了不同實驗條件下其工作的實際比沖、推力效率、推力/功率比以及比功率等性能參數，分析了推進劑質量流率、電弧功率、電弧加熱發動機電弧室結構尺寸等因素對其性能的影響，為數值模擬研究和實際的低功率電弧加熱發動機優化設計及研製提供了實驗基礎。
  15. On the basis of analyzing the aerodynamical property and the construction of usual axial fan, the aerodynamical property and the construction of contra - rotating axial local fan are studied in the paper. moreover, author has designed a kind of contra - rotating local fan, which has the characters of low noise, high efficiency, well aerodynamical performance, optimum structure, and large power

    本文在分析了普通軸流式通風機的氣動力特徵和結構的基礎上，研究了對旋式軸流通風機的氣動力特性和結構特點，設計並製造出了一種風量大，風壓高，噪聲低，效率高，氣動性能好，體積小，結構新穎的2 30kw新型大功率對旋式軸流局部通風機樣機。
  16. Understand mechanism and affecting factors of aeration, grasp measurement process of oxygen transfer capability, and evaluate oxygen transfer efficiency and dynamical efficiency

    理解曝氣充氧機理及影響因素，掌握曝氣設備清水充氧性能的測定方法，評價氧轉移效率和動力效率。
  17. Passing the cold air - dynamic test, thermal efficiency test and practical running, we can conclude the technology is viable in setting the high temperature corrosion of the water wall tubes of boiler and increase thermal efficiency ect

    從冷態空氣動力場試驗、熱態效率試驗和實際運行方面出發，驗證此項技術在解決鍋爐水冷壁高溫腐蝕以及提高鍋爐熱效率等方面的可行性。
  18. This method makes it possible for investigating the unsteady nonlinear potential flow in a complicated environment with higher efficiency. the aerodynamic forces of a wing in couple motion of heave and pitch with ground effect are analyzed in detail based on the numerical result. it is shown that a thrust force exists when the wing is in heave motion

    深入系統地分析了存在表面效應時機翼運動規律和氣動力之間的關系，研究結果表明，機翼升沉運動產生的推力與升沉速度幅值的平方成比例，推力和推進效率和振蕩頻率成反比；機翼的俯仰運動可以調節推力和推進效率，但是單純的俯仰運動不會產生推力。
  19. Abstract : through the study of inlet manifold of truck direct injection diesel engines, we studied the fundamental law of the utilization of gasdynamic effect in the inlet manifold to increase the volumetric efficiency in multi - cylinder engines

    文摘:本文通過對車用直噴式柴油機進氣管的試驗研究，探討了在多缸柴油機中利用進氣管內的動力效應以提高充氣效率的基本規律。
  20. An improved numerical method is presented through in - depth numerical analysis of the factors affecting the accuracy of numerical calculation. by reasonably matching the numerical grids to the mathematic model used, the present method can make the numerical calculation processed with high accuracy. additionally, a local mapping method is presented for simulating the wave interaction

    通過對影響機翼氣動力數值精度的多種因素的分析，對已有的數值方法進行了改進，使數值網格與數學模型合理匹配，確保數值計算結果精確可靠，大大提高計算效率，並給出了復雜條件下的非定常非線性數值結果。
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