热稳定性是由3级风扇的噪音非常低的水平。
Thermal stability is provided by a 3-stage fan with a very low noise level.
本文首先介绍了风扇的工作原理，包括基元级的速度三角形、叶型和叶栅参数以及叶栅的空气动力学方程。
This paper explains the working principles of a fan, including velocities on an elementary stage, parameters of blade types and cascades and the aerodynamics formulas of cascades.
采用新建立的试车台数据实时采集与监控系统，测量了该单级跨声速风扇的总性能和采用处理机匣后风扇的总性能、基元级性能。
By using real time data gathering and test system of the aero engine test bed, the detail measurement of single stage transonic fan performance with and without different casing treatments were made.
检查整流锥、风扇叶片、增压器第一级静子叶片有无外物击伤的情况。
Examine the spinner, fan blades, and stage 1 booster vanes for evidence of foreignobject damage.
对某双级跨音速风扇及五级压气机流场进行了计算，双级风扇各状态的计算结果与实验数据吻合较好。
Numerical calculations were performed on a two-stage transonic fan and a five-stage compressor. The two-stage fan flow predictions show a good agreement with experimental data.
采用任意中弧线叶片造型程序，将某单级跨声、常规设计的风扇改进为复合掠形设计。
An arbitrary airfoils blade design procedure was adopted to redesign a transonic fan with compound swept.
给出了一双级高负荷跨音速风扇设计和非设计工况下的详细计算结果，各工况下的计算与实验数据均吻合较好。
The computed results for a highly loaded two-stage fan at design and off-design conditions were given in detail. The simulation results show good agreement with experiment data.
C和I级器件允许的最高接合温度不同。如果温度高于允许的最高值，可能需要增加散热片或风扇。
The maximum acceptable junction temperature is different for C and I grade devices. If it is higher than the max. acceptable temperature, you may consider adding a heatsink or cooling fan.
用该系统对某级增压比2.2的单级高负荷后掠风扇进行了后掠和前掠大小叶片改型设计。
Using this design system, a high-loaded backward-swept fan with a stage pressure ratio of 2.2 was redesigned firstly as a backward-swept and secondly as a forward-swept splittered fan.
用该系统对某级增压比2.2的单级高负荷后掠风扇进行了后掠和前掠大小叶片改型设计。
Using this design system, a high-loaded backward-swept fan with a stage pressure ratio of 2.2 was redesigned firstly as a backward-swept and secondly as a forward-swept splittered fan.
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