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高速飞机
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  high-speed aircraft
     Numerical Simulation of IR Image of High-speed Aircraft
     高速飞机红外成像特性数值模拟研究
短句来源
     As a choice of high-speed aircraft type, Oblique wing aircraft receives much attention and investigation, included wind tunnel experiments and numerical simulation.
     作为高速飞机布局的一种选择——斜置机翼飞机特别是斜置飞翼在此期间也得到大量的研究和关注,欧美各国都对这种非常规布局的飞机进行了系统的研究与分析,并进行了许多的风洞实验和数值模拟。
短句来源
     These adhesives are used in many diverse applications such as sealants for fuel tanks in high-speed aircraft, structural adhesions in high-speed aircraft and space vehicles.
     这类胶粘剂应用广泛,其中有高速飞机的油箱密封、高速飞机和航天飞机的结构粘接。
短句来源
  speed aircraft
     Supersonic speed aircraft and guided aircraft missiles are subjected to rapid aerodynamic heating and rapid loading during their flight.
     高速飞机及飞航导弹在飞行过程中受到气动力的快速加热和快速加载.
短句来源
     ②to repla-ce the upright beavertail antenna of aircraft altimeter with a conformal orlow-profile antenna so as to improve the aerodynamic characteristics ofhigh speed aircraft and make it less liable to damage on the ground.
     ②将外露的飞机无线电高度表天线改成与安装面共形的或低剖面的天线以改善高速飞机的空气动力性能并减少地面碰坏的可能性。
短句来源
  high-speed flight
     In order to investigate the possibility of realizing the high-speed flight with supersonic airplanes, rockets and guided missiles, Professor Hsue-Shen Tsien has made great contributions to research and development in the fields of Aerodynamics, Solid Mechanics, Flight Mechanics;
     钱学森先生为了研究实现高速飞机和远程火箭的可能性,在空气动力学、固体力学、稀薄气体力学和飞行力学等应用力学领域做出了杰出的贡献;
短句来源
  “高速飞机”译为未确定词的双语例句
     AN IMPACT DYNAMICS INVESTIGATION ON SOME PROBLEMS IN BIRD STRIKE ON WINDSHIELDS OF HIGH SPEED AIRCRAFTS
     鸟撞高速飞机风挡若干问题的冲击动力学研究
短句来源
     Numerical aerodynamic analysis of an high speed airplane
     高速飞机的全机气动力数值分析
短句来源
     Theoretic design was completed before test. Experimental study of effect of maximum height and width,slen-derness ratio and backward angle of dip of window of close cabin ondrag characteristics was conducted respectively with 4 series and 13close cabin models.
     经4个系列13个座舱盖模型的试验,分别研究了座舱盖最大高度、最大宽度、细长比及风挡后倾角对阻力特性的影响,为高速飞机座舱盖气动设计的参数选择提供了一般准则;
短句来源
     G level of ejection acceleration is rather high,but human tolerance islimited.
     高速飞机和航天常采用弹射座椅应急救生。 准确地测量弹射加速度对判断弹射座椅的人体工程学性能和人体安全关系密切。
短句来源
     After the energe method is briefly reviewed and compared with classical method of performance analysis, the flight test method of energe method is emphatically described in this paper.
     在简要地回顾能量法并与经典的性能分析法作比较后,本文着重叙述能量法的试飞方法研究,实践证明,能量法的试飞方法是一种简单、有效的方法,能解决高速飞机能量有利的一些问题。
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  high-speed aircraft
A contemporary high-speed aircraft represents a complex three-dimensional configuration, where supersonic gas flow is accompanied by numerous local flow interaction zones, in particular, near the intersection of different surfaces.
      
One of the main problems which arise in the design of high-speed aircraft is the protection of the streamline surfaces against the erosion effect of solid particles and drops occurring in the free stream.
      
Defines, evaluates, and conducts research on thermal protection materials requirements for high-speed aircraft and space transportation systems.
      
For high-speed aircraft, severe aerodynamic heating may occur in local areas on the body of the vehicle.
      
  speed aircraft
A contemporary high-speed aircraft represents a complex three-dimensional configuration, where supersonic gas flow is accompanied by numerous local flow interaction zones, in particular, near the intersection of different surfaces.
      
One of the main problems which arise in the design of high-speed aircraft is the protection of the streamline surfaces against the erosion effect of solid particles and drops occurring in the free stream.
      
Certain shapes of high speed aircraft, such as caret wings, make use of twodimensional flow fields and in principle they can be propelled by purely external heat addition without any ducted flow.
      
Defines, evaluates, and conducts research on thermal protection materials requirements for high-speed aircraft and space transportation systems.
      
Five years later the RAS offered a new prize for a speed aircraft.
      
更多          
  high-speed flight
Distinctive features of the flow past high-speed flight vehicles with air-breathing engines on subsonic, transonic, and low supe
      
A method is described for compensating the errors of measurement of flow parameters in wind tunnels and determination of the high-speed flight parameters of aircraft.
      
An control system also developed to control either Mach number or estimated airspeed at the high-speed flight conditions.
      
As readers of these publications knew, Dryden had devoted his entire research career to high-speed flight.
      
In addition, these projectiles operate at sea-level conditions, a high-speed flight regime not commonly studied.
      
更多          


Supersonic speed aircraft and guided aircraft missiles are subjected to rapid aerodynamic heating and rapid loading during their flight. For taking full advantage of the strength of structural materials in design, it is necessary to study the mechanical characteristics of metallic structural materials under rapid loading and heating. This paper describes a short-time high-temperature tensile testing machine, which is capable of constant-rate loading up to 85 kg/sec and heating at a rate up to 80℃/sec, the temperature...

Supersonic speed aircraft and guided aircraft missiles are subjected to rapid aerodynamic heating and rapid loading during their flight. For taking full advantage of the strength of structural materials in design, it is necessary to study the mechanical characteristics of metallic structural materials under rapid loading and heating. This paper describes a short-time high-temperature tensile testing machine, which is capable of constant-rate loading up to 85 kg/sec and heating at a rate up to 80℃/sec, the temperature gradient within the gage length for a distance of 50 mm being less than 5℃. All the heating, temperature-controlling and stress-strain measuring processes are done automatically. Experiments such as rapid tension under high temperature, rapid heating under constant loading and short-time creep can be carried out on this tester. Specimens of low carbon steel, R1T and 12F2A have been tested on it. Diagrams and tables have been included here and results from these tests have been preliminarily discussed.

高速飞机及飞航导弹在飞行过程中受到气动力的快速加热和快速加载.为了最充分地利用结构材料强度进行合理设计,必须研究金属结构材料在快速加载、快速加热下的力学性能.本文叙述了一种短时高温拉伸试验设备;这设备能以小于85 kg/s的速率对试件进行恒速加载,以小于80℃/s的速率进行快速升温;试件50mm标距内温度梯度小于5℃;整个加热控温过程和应力应变测量记录过程均系自动进行.在此设备上可进行高温快速拉伸和短时蠕变等实验,并已进行了低碳钢,等材料的短时拉伸、短时蠕变、恒裁等加热率的实验.文内列有图表,并对结果进行了初步讨论.

Using the radio altimeter for altitude measurement,some departments ha-ve put forward two quality requirements for the altimeter.①to reduce theflickering movement of the altimeter pointer during the flight.②to repla-ce the upright beavertail antenna of aircraft altimeter with a conformal orlow-profile antenna so as to improve the aerodynamic characteristics ofhigh speed aircraft and make it less liable to damage on the ground.Basedon the above-mentioned requirements,We make preliminary theoretical andexperimental...

Using the radio altimeter for altitude measurement,some departments ha-ve put forward two quality requirements for the altimeter.①to reduce theflickering movement of the altimeter pointer during the flight.②to repla-ce the upright beavertail antenna of aircraft altimeter with a conformal orlow-profile antenna so as to improve the aerodynamic characteristics ofhigh speed aircraft and make it less liable to damage on the ground.Basedon the above-mentioned requirements,We make preliminary theoretical andexperimental investigafions about the rectangular microstrip antennas foraircraft altimeter.The main results are presented in this paper.Test flightshave shown that the pointer flicker of altimeter is distinctly reduced duri-ng level flights.

本文根据使用部门提出的如下要求:①改善低空无线电高度表在飞行中的摆动;②将外露的飞机无线电高度表天线改成与安装面共形的或低剖面的天线以改善高速飞机的空气动力性能并减少地面碰坏的可能性。对矩形微带天线用于飞机测高作了初步的理论和实验研究,经飞行试验表明在平飞时无线电高度表摆动情况明显改善。

Abstract

钛合金叶轮具有比重小、比强度高,抗腐蚀性好的特点,适宜在一些腐蚀性环境中使用。我们用熔模石墨型壳系统浇注了两种不同尺寸的叶轮,用于高速飞机空调系统和油田回收轻烃装置,获得了成功。叶轮经X光、荧光渗透检查,内部和表面质量良好,表面光洁度达(?)4~(?)5,表面沾污层深度0.10~0.15毫米,叶轮尺寸精度与其它有色合金熔模精铸件相当,成品率大幅度提高,叶轮机械性能合格。

 
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