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   试验器 在 航空航天科学与工程 分类中 的翻译结果: 查询用时:0.018秒
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试验器
相关语句
  tester
    A Pressure Tester for Testing Aeronautical Atmospheric Parameter
    用于航空大气参数测试的压力试验器
短句来源
    VERTICAL ROTATING TESTER WITH VARIABLE-AMPLITUDE CYCLE FOR GAS TURBINE DISKS
    立式轮盘变幅循环旋转试验器
短句来源
    The thesis presents hardware constitution, software design of the dual redundancy BLDCM tester, which is designed based on AT89C51 and SG3525. PWM modulation circuit, power driver circuit and GAL synthesized logic circuit are analyzed and explored. Negative feedback circuit with cut-off current is designed to limit the current while the motor starts or is blocked.
    论文介绍以AT89C51单片机与SG3525脉宽调制控制器为核心的双余度稀土永磁无刷直流电机试验器的系统硬件结构,并对PWM调速控制、功率驱动输出及GAL逻辑综合等电路进行分析,提出并设计了电流截止负反馈电路实现电机堵转和起动时的电流限制功能。
短句来源
    An experimental rotor of the 1st turbine disk had been designed to model the stress spectrum on the check points. The high temperature LCF(low cycle fatigue)test of an old disk was also conducted at SB804-the disk LCF tester in GTE(Gas Turbine Establishment).
    为模拟标准循环时该盘在其考核部位的应力谱,专门设计了该Ⅰ级涡轮盘的试验转子及试验参数,在轮盘低循环疲劳试验器上,对该Ⅰ级涡轮盘的一个旧盘进行了高温低循环疲劳试验。
短句来源
  “试验器”译为未确定词的双语例句
    Designing of Multi-purpose Digital Control Test Table
    多功能数字控制陀螺仪表试验器的设计
短句来源
    Development of Thermal Mechanical Fatigue Test Rig
    热机械疲劳试验器的研制
短句来源
    Design and Realization of the Entire Fuel Tank Leakage Test Wares of New Type Aircraft
    某新型飞机整体油箱密封性试验器设计与实现
短句来源
    The configuration with a blade count ratio of 1:1:1 was a simplified pattern of NUAA LSC.
    该1.5级压气机为南航低速压气机试验器(LSC)的简化结构,各排叶片数之比为1:1:1。
短句来源
    Design of Small-volume Plenum for Small Flow Rate Compressor Test Rig
    小型压气机试验器小容腔节流装置的设计
短句来源
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  tester
In the present paper, experiments are carried out on a self-made tester.
      
The wear resistance of Cr13Ni5Si2/γ alloy was evaluated on an MM-200 block-on-wheel dry sliding wear tester at room temperature.
      
Analysis of the spore population from the hybrids of remaining 14 mutants with the pex tester demonstrated the presence of methanol-utilizing segregants, which indicates mutation localization in other genes.
      
It is shown that the cost of measurement can be reduced by using laboratory radiation simulators and each form of radiation of interest can be simulated with an agent readily available for the tester.
      
Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and filed emitting tester are employed to characterize the nanorod arrays.
      
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A tiny 5-hole compound probe with NTC-thermister has been developed by the authors for measurement of flow parameters in the compressor. All problems encountered for the thermister to be used in measuring the flow temperature are discussed. The techniques for enlarging the temperature range measured are also considered, such as how to sift out the best thermister, how to apply a highly precise and voltage-stabilizing supply to an unbalanced bridge for transmitting an accurate millivolt signal, and how to set...

A tiny 5-hole compound probe with NTC-thermister has been developed by the authors for measurement of flow parameters in the compressor. All problems encountered for the thermister to be used in measuring the flow temperature are discussed. The techniques for enlarging the temperature range measured are also considered, such as how to sift out the best thermister, how to apply a highly precise and voltage-stabilizing supply to an unbalanced bridge for transmitting an accurate millivolt signal, and how to set a limit to the self-heating power of the thermister. As a result, the temperature range is extended from 273K to 473K. The probe was tested in a single-stage compressor rig, and its function and performance were verified favorably.

本文研究了使用热敏电阻测量气流温度时所遇到的各种技术问题,并探讨了扩大测温范围的技术途径。其中,主要是筛选热敏元件,控制自热效应,精心设计测量电桥,设法提高高温区的灵敏度和精度等。根据本文原理,研制了一种小型五孔复合探针,并在压气机单级试验器上进行实测,以验证其功能和各项性能指标。

Four sets of composite air-cooled blades of highly-loaded and high temperature transonic turbine with various schemes of film-cooling holes have been designed and made,and have successfully passed 290 hour test run.Experimental results show that the cooling characteristics of the turbine vanes and blades are superior as their cooling mass flow ratios are 2-8% and 1-6% respectively.The wall temperature of turbine vanes and blades were corrected ...

Four sets of composite air-cooled blades of highly-loaded and high temperature transonic turbine with various schemes of film-cooling holes have been designed and made,and have successfully passed 290 hour test run.Experimental results show that the cooling characteristics of the turbine vanes and blades are superior as their cooling mass flow ratios are 2-8% and 1-6% respectively.The wall temperature of turbine vanes and blades were corrected by measuring the heat losses of the test section.The results are converted to actual engine operation conditions,according to the similarity theory.It is obtained that the cooling effectiveness of the turbine vanes and blades is 335-420K respectively,and the wall temperature distributions are uniform.The effects of the parameters of the air-cooled turbine blades on the cooling effectiveness are also considered systematically,based on a large quantity of data obtained from the experiments of four kinds of composite air-cooled transonic turbine vanes and blades.

在燃气涡轮研究所 ( GTE)的涡轮叶片综合冷却效果试验器上对四套大载荷跨音速复合式气冷涡轮叶片 (多种气膜孔方案 ) ,成功地进行了 2 90小时试验。试验结果表明 ,导叶在 2 - 8% ,动叶在 1- 6%宽广的冷气流量比范围内 ,具有良好的冷却特性。此外还分析了叶片参数对冷却效果的影响

A experimental method is developed for elastoplastic stress analysis of a rotating disk by means of photoelastic coating and photoplasticity.The experimental results are obtained from elastoplastic strain measurements of a model disk and a compressor disk.The isochromatic fringe fields of rotating disks are recorded by two systems which are designed by authers and composed of derotator、strobe light、photoelectric detector and camera.Strips method and...

A experimental method is developed for elastoplastic stress analysis of a rotating disk by means of photoelastic coating and photoplasticity.The experimental results are obtained from elastoplastic strain measurements of a model disk and a compressor disk.The isochromatic fringe fields of rotating disks are recorded by two systems which are designed by authers and composed of derotator、strobe light、photoelectric detector and camera.Strips method and difference method are proposed to separate strains in the photoelastic coating.The elastoplastic stresses of the rotating disk are calculated from experimental data according to small deformation elastoplastic theory.This experimental method has the advantage over other methods in noncontact measurement of the whole field.

本文介绍了光贴片法及光塑性法的原理及在旋转盘弹塑性应变测量中的应用。作者用上述方法设计了等色线条纹的实测系统 ,测定了旋转模型盘及发动机压气机盘在榫槽、偏心孔、中心孔等应力集中区的弹塑性应变分布及塑性区。试验结果表明 :研究的技术成果可应用于旋转盘在试验器上试验或模型试验中的弹塑性应变测定。

 
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