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螺旋桨
相关语句
  propeller
    THE STUDY OF THE THEORETICAL CALCULATION METHODFOR POWER STALL DYNAMIC CHARECTERISTICSOF MULTIPLE-ENGINE PROPELLER AIRPLANE
    多发螺旋桨飞机动力失速动态特性理论计算方法研究
短句来源
    AERODYNAMIC DESIGN OF PROPELLER BY NUMERICAL OPTIMIZATION
    螺旋桨的数值优化设计
短句来源
    THE NUMERICAL CALCULATION OF AIRCRAFT PROPELLER NOISE
    飞机螺旋桨噪声的数值计算
短句来源
    A TIME DOMAIN METHOD FOR PROPELLER NOISE PREDICTION INCLUDING AIRCRAFT FUSELAGE EFFECT
    考虑飞机舱壁影响的螺旋桨声场时域预测法
短句来源
    J17-G13 Propeller Certified by CAAC
    J17-G13螺旋桨取得CAAC型号合格证
短句来源
更多       
  propellers
    Mathematical Model of Airpiane Propellers
    飞机螺旋桨外形的数学模型
短句来源
    OPTIMUM DESIGN FOR PROPELLERS
    螺旋桨的优化设计
短句来源
    AEROELASTIC STABILITY ANALYSIS OF AERIAL PROPELLERS
    航空螺旋桨的气动弹性稳定性分析
短句来源
    EXPERIMENTAL CHARACTERISTICS COMPARISON BETWEEN TWO SCALE MODEL PROPELLERS
    两个缩尺模型螺旋桨的气动与声学性能对比实验
短句来源
    EXPERIMENTAL INVESTIGATION OF AERODYNAMIC CHARACTERISTICS OF SHROUDED PROPELLERS WITH NEW AEROFOIL
    采用新翼型的函道螺旋桨气动特性实验研究
短句来源
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  a propeller
    Calculation of Range and Endurance of a Propeller Aircraft at Constant Altitude
    螺旋桨飞机等高度飞行的航程与航时计算
短句来源
    A method for calculating the acoustic pressure of a propeller due to blade thickness and steady surface pressure loading (including the effect of forward motion) is presented in this paper.
    介绍一种螺旋桨厚度噪声和载荷噪声声压时间历程的计算方法。
短句来源
    This paper mainly deals with the difficult technical problems of the free flight model powercd by propeller,such as rule of sirmilitude,sliding similitude and pow-er similitude of a propeller. gyroscopic moment’S simulation,effection of fired oil changefor themodel spinning test and the problem of the taking off and recovery of model.
    主要阐述带动力模型自由飞的技术难题,诸如相似准则、螺旋桨的动力模拟及滑流模拟、陀螺力矩的模拟、燃油变化对尾旋试验的影响以及模型的起飞与回收等问题。
短句来源
    The methods were studied for predicting range and endurance of a propeller plane at constant altitude.
    研究了螺旋桨飞机等高度飞行时航程、航时的计算方法。
短句来源
  “螺旋桨”译为未确定词的双语例句
    A CALCULATION METHOD FOR THE PROPELLER-WING INTERFERENCES
    螺旋桨滑流-机翼干扰效应的数值计算方法
短句来源
    A study on the various factors of effecting propeller-UAV launching safety
    影响螺旋桨式无人机安全发射的诸因素
短句来源
    Optimum design for ducted fan
    涵道螺旋桨动力装置最优设计新方法的研究
短句来源
    The design results show that an improvement of hover performace without causing a decrease of cruise efficiency can be obtained by the method.
    设计结果表明,由本文提出的方法设计的螺旋桨与普通螺旋桨相比,在不损失巡航推进效率的同时,可显著增加悬停效率,提高飞机的悬停性能。
短句来源
    Technique on noise powerspectrum of aeroengine test is introduced,noise level,primary noise source and characters with the technique of noise powerspectrum of turboprop are discussed.
    通过讨论航空发动机试车台噪声的声功率谱分析技术,对某型涡轮螺旋桨发动机试车噪声的声功率谱进行分析,讨论该型发动机的噪声级、主要噪声源及其特征;
短句来源
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  propeller
The hydromechanical performances of the undulatory long dorsal fin propeller of G.
      
On the nonlinear theory of a propeller in an axial regime
      
Moreover, the results of the present paper can be used to evaluate the hydrodynamic forces acting on underwater wings or propeller blades during intersection with a free surface.
      
Approximate calculation of three-dimensional cavitating flow around propeller blades in a viscous capillary fluid
      
A method of estimating the critical cavitation number for marine propeller blades is proposed.
      
更多          
  propellers
Allowance for the unsteadiness of the flow in determining the critical cavitation number for marine propellers
      
Acoustic emission used for detection of crack generation in propellers of turbine-pump units
      
Criteria for identification of subsonic propellers
      
The criteria that allow subsonic propellers to be distinguished from accretors include a soft X-ray spectrum, a limited range of admissible spin periods, and a rapid spindown.
      
Unlike all known models, it describes three-dimensional fields of velocities generated by ship propellers, turbulence intensity and length scale in the given domain of arbitrary bottom and coastal topography.
      
更多          
  a propeller
On the nonlinear theory of a propeller in an axial regime
      
This is because when the evolution of the angle of axial inclination is taken into account, the transition to the stage of a propeller occurs at much shorter neutron-star spin periods (P ~ 5-10 s) than assumed previously.
      
The hydrodynamic performance of a propeller in unsteady inflow was calculated using the surface panel method.
      
Phase sampling in the analysis of a propeller wake
      
Electret microphones were evaluated for use in an experiment to investigate the surface pressures of a wing immersed in a propeller slipstream.
      
更多          


The airscrew included various propellers, fans, windmills and helicopter blades, etc. In an earlier paper [2], we suggested the Mathematical model of helicopter rotor airfoil. In this paper we shall concern ourselves with the problem of describing surfaces of the propellers.Instead of subdividing a surface into parts or "patches" we shall investigate ways to treat it as a whole. This method is simple to implement and computationally efficient.After making a series of researches, the mathematics model of airplarce...

The airscrew included various propellers, fans, windmills and helicopter blades, etc. In an earlier paper [2], we suggested the Mathematical model of helicopter rotor airfoil. In this paper we shall concern ourselves with the problem of describing surfaces of the propellers.Instead of subdividing a surface into parts or "patches" we shall investigate ways to treat it as a whole. This method is simple to implement and computationally efficient.After making a series of researches, the mathematics model of airplarce propellers has been established. A routine is made by using ALGOL-60 language according to the presented method.

空气螺旋包括螺旋桨、风车、风扇和直升机叶片等。在[2]里,我们提出了直升机旋翼桨叶的数学模型。本文探讨螺旋桨型面的描述问题。在这里,我们不是将一个型面分成许多块或“曲面片”,而是把它当作一个整体来处理。这种方法简单易行,计算有效。 经过初步探索,已经建立起飞机螺旋桨的数学模型,而且用Algol-60语言编写了计算程序。

A calculation method, which can account for the propeller-wing aerodynamic interferences by means of the finite elementary solution method, is given in this paper. A FORTRAN program has been designed several examples (lifting surface with one, two or four propellers) has been calculated and the results agree with the experiment data very well. It seems a great improvement on the analytic theory.

本文用有限基本解数值计算方法来计算螺旋桨滑流对机翼气动特性的影响,并编制了FORTRAN语言程序。对于带有一个、两个或四个螺旋桨的升力面算例,计算结果与实验值很接近,比国外资料中的解析理论结果大有改善。

In accordance with the characteristics of the multiple-engine propeller airplane, this paper derived the calculation equations for analyzing the power stall dynamic characteristics of the multiple-engine propeller airplane and studied the power stall dynamic character-istics of this airplane with these equations.Since the theoretical calculation method presented in this paper has more completely considered the particular dynamic effect of the propeller airplane, so the power stall characteristics of multiple-engine...

In accordance with the characteristics of the multiple-engine propeller airplane, this paper derived the calculation equations for analyzing the power stall dynamic characteristics of the multiple-engine propeller airplane and studied the power stall dynamic character-istics of this airplane with these equations.Since the theoretical calculation method presented in this paper has more completely considered the particular dynamic effect of the propeller airplane, so the power stall characteristics of multiple-engine propeller airplane have been more accurately reflected. Therefore, in addition to analysis of the power stall characteristics of the multiple-engine propeller airplane, this calculation method is worth reference for the study of full digital real time imitation of power stall characteristics of the airplane and for the study of stall/spin flight simulator.

本文针对多发螺旋桨飞机的特点,推导出用于分析多发螺旋桨飞机动力失速动态特性的计算方程,并用此方程研究了此类飞机带动力的失速动态特性,计算结果与飞行结论相符。 文中提出的理论计算方法,较全面地考虑了螺旋桨飞机所特有的动力效应,因此较准确地反应了多发螺旋桨飞机的动力失速特性。所以,它除了能分析多发螺旋桨飞机的动力失速外,对于研究飞机动力失速的全数字实时仿真和研究失速/尾旋飞行模拟器也有一定的参考价值。

 
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