• The influence of blade number, blade thickness, location of splitter blades and tip clearance on mass flow, pressure ratio and efficiency is showed.

    讨论改变叶片数目,增加叶片厚度调整分流叶片周向位置以及增加间隙高度等离心叶轮流量效率等总体性能影响

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  • Experimental results show that the trajectory of particles with large mass will be close to the pressure surface of blade in the centrifugal impeller.

    试验结果表明质量颗粒离心叶轮中,轨迹总是趋向叶片压力

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  • The measurements show that the airfoil blade fan prevails over the plate one in the aspects of total pressure efficiency, stable operation range and high efficient operation range.

    试验结果表明机翼叶片效率稳定运行范围高效运行范围相应型叶片具有优越性;

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  • Using resistance strain gage, dynamic pressure sensor, slip ring and tape recorder, the blade vibration strain and exit pressure signals of rotor blades are recorded and then processed.

    利用电阻应变片、动态压力传感器滑环式引电器磁带记录仪等录取叶片振动应变和动出口压力信号然后回放磁带,做信号处理

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  • The mind has to be still, and you have to maintain just the right amount of pressure constantly as you sharpen the blade.

    必须静止刃时必须维持那股恰到好处压力

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  • The experimental result shows that the normal pressure distribution on the surface of the model blade is a conicoid, the maximum of the normal pressure is in the middle of the model blade.

    研究结果表明,法向压力模型表面呈二次曲面分布,在模型铲刀中部取得最大值

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  • A numerical method is presented for prediction of propeller performance and pressure distribution on blade surface according to lifting surface theory.

    本文提供了根据升力理论计算螺旋桨桨叶表面压力分布螺旋桨性能数值方法

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  • The water pressure is difficult to analyze because of the complex shape the blade takes. So many designers of pump simplify the blade as cantilever girder.

    校核叶片强度时,由于叶片形状空间扭曲,相当不规则,很难分析叶片表面压力所以研究人员通常用把叶片简化悬臂梁进行分析。

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  • The high head produced by the impeller means high adverse pressure gradient within blade passage and because of this the flow often separates from the blade surfaces even at the design point.

    低比转速扬程决定了叶片流道梯度比较高,这种压力分布使得水流易于叶片表面脱流分离,这一现象甚至在泵的设计也难以避免。

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  • The unsteady pressure distribution on the propeller blade surface by the present program are in satisfactory agreement with experimental data.

    表面非定常压力分布计算结果测试结果的比较表明,本文的预报结果令人满意

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  • The value of passive earth pressure on the foot blade of open caisson varied between the value of the earth pressure at rest and the limit value of passive earth pressure.

    指出沉井脚所被动压力介于静止土压力被动土压力极限值之间

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  • It is proved that the profile loss can be decreased with the use of advanced blade through the comparison of loss coefficient of blade surface overall pressure.

    通过叶片表面损失系数证实先进叶型在流动可以降低叶型损失。

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  • In the process of cutting force hedge process and pressure center has been calculated and analyzed, and hedge die size of the blade of calculations.

    对冲过程中的工艺以及压力中心进行计算分析对冲裁刃口尺寸进行的计算。

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  • There is a pressure probe at a measurement location a distance L upstream of the blade row.

    距叶上游长度为L一个压力探测器

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  • The way to improve total pressure efficiency by appropriate inclined cut of airfoil blade tip was studied.

    分析了对后拖式机翼型叶片叶尖进行适当切割可以提高效率的原因。

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  • With the thickness distribution of a blade and the pressure or velocity distribution on its suction specified, the blade contour and the flow field of cascades that satisfy the gi…

    对于给定叶片厚度分布吸力面上的设计压力速度分布,应用本文方法可求得满足设计要求叶片几何形状

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  • The blade tip crack of the high pressure turbine is repaired by using the laser welding, which can reduce effectively the repair cost and increase the economic effectiveness of the engine repair.

    采用激光熔焊方法修复了高压涡轮工作叶片叶尖裂纹有效降低发动机修理成本提高了发动机修理经济效益

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  • And the results showed that the performance of the diffuser with splitter blade was improved. The pressure recovery coefficient was (increased) and the aerodynamic loss coefficient was decreased.

    同时比较大小叶片设计方案全为大叶片方案性能发现采用大小叶片可提高静压恢复系数,降低空气动力损失

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  • Effect of impeller of different blade profile on the highest pressure point, optimum operating point, shape of pressure curve and efficiency of the fan were analyzed.

    分析不同叶片型线叶轮风机最高压力最佳工况点、压力曲线形状效率影响,同时探讨风机不同叶片型线的工程实用价值。

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  • Because of relative movement of blade rows, the pressure distributions on the blade and the flow field in the cascade vary periodically.

    由于排间相互运动,使叶片表面压力叶栅通道内周期性地变化;

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  • The thesis introduces the flow process of traditional technology of "t" type high-pressure blade and the reasons which effect the process period.

    分析介绍T叶根高压传统工艺方法流程影响生产加工周期原因

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  • We can make a accurate prediction of the propeller's thrust, torque and the pressure distribution on the blade.

    用面元法不仅可以准确预报螺旋桨推力转矩而且可以准确地预报螺旋桨表面压力分布

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  • This paper sets the theoretical and numerical method predicting the unsteady pressure distribution on the propeller blade surface by using perturbation potential based on surface panel method.

    本文建立扰动速度元法预报螺旋桨表面定常压力分布理论数值方法

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  • The unsteady surface pressure on stator blade of an axial compressor was measured by means of mounting micro-sensors on blades surface.

    本文对台单级轴流压气机子叶片定常表面压力进行测量。

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  • Doblhoff's "pressure-jet rotor" concept involved piping high-pressure air from a compressor out to the rotor-blade tips, where it was mixed with fuel and burned in combustors.

    Doblhoff“压力型喷气转子”的概念参与管道高压空气压缩机转子叶片的提示混合燃料燃烧燃烧室

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  • In addition, the pressure and velocity in cooling fan flow field are analyzed and the relations between flow rate, rotation speed, blade number and aerodynamic noise of cooling fan are studied.

    同时,对风扇压力速度进行分析;研究了风扇流量、风扇转速、扇气动噪声相互之间关系

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  • Experimental results show that under the effect of the rotor wake, the dominant frequencies of pressure fluctuations on stator blades are the rotor blade passing frequency (BPF) and its harmonics.

    实验结果表明:在转子尾迹影响静子叶片表面的波动频率转子的尾迹频率及其倍频

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  • Experimental results show that under the effect of the rotor wake, the dominant frequencies of pressure fluctuations on stator blades are the rotor blade passing frequency (BPF) and its harmonics.

    实验结果表明:在转子尾迹影响静子叶片表面的波动频率转子的尾迹频率及其倍频

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