风扇叶片

The airscrew included various propellers, fans, windmills and helicopter blades, etc.

空气螺旋包括螺旋桨、风车、风扇和直升机叶片等。

The author has founded mathematical method of optical design for flow type basing on the turbomachinery rule equation and classical variational principle.

作者从叶片机械的欧拉方程出发，运用经典变分原理，建立了风扇流型优化设计的数学模型，解决了风扇扭曲规律优化设计这一难题。

I am optimistic about the current situation on the ADDA fans, not because their products work and the use of materials in particular research, the human design, but because of the S38 leaves 11 family of products represents a new CPU fan technology (for high thermal performance, low power).

就目前情况我看好ADDA风扇，不是因为其产品的做工和用料特别考究，外形设计的人性化，而是因其十一叶片的S38系列产品代表着CPU风扇技术的新走向。

Patent, and then the blade-to-blade flow was computed by solving the two-dimensional steady Navier-Stokes equations, finally, overall performance and internal flowfield characterization were obtained and analyzed.2. As to radial matching between blade sections, preliminary investigations were developed from three aspects such as stall margin customizing technique, control technology of tip clearance flow, prediction model and control technology of corner separate.a On basis of reviewing on methods of achieving the goal of stall margin in design process of fan and axial-flow compressor, in conjunction of understandings on "Sweep/Dihedral", stall margin customizing technique was put forward; two-dimensional performance prediction method for stall margin customizing was developed, it can consider influences of radial stacking patterns of blade sections and axial distances between blade rows conveniently and rapidly.b A simple model for tip leakage mixing loss of unshrouded blades for compressible flow was presented.

二、叶片基元展向匹配方面，本研究从影响负荷最大化的叶身展向积迭注：原(来源：ABC论文35网www.abclunwen.com指掠弯是裕度定制的一部分，为方便论述，本文将此统一论述为裕度定制、叶尖间隙、叶片与端壁角区这三个最重要因素出发，探讨了各因素影响负荷最大化的机理，并由此给出了最大负荷设计过程中的技术措施和努力方向。1从掌控风扇/轴流压气机裕度方法回顾入手，探析了美国和俄罗斯裕度控制方法及相应特点，结合对&掠/弯&因素的认识提出了裕度定制技术：并开发了能够体现裕度定制思想的二维特性预估方法，可在二维层面下方便快捷地考虑以掠/弯为代表的叶片基元展向积迭以及叶片排间轴向间距带来的影响；2借鉴Denton关于不可压叶尖泄漏损失的理论分析，推导出适用于可压缩流动的叶尖泄漏掺混损失计算的基本关系式。

The action of the centrifugal fan, expressed in simple terms, is as follows: when the fan wheel, A (Fig.25.2), carrying the blades or vanes, B, revolves in its casing, the air is moved by the blades, but does not continue to rotate with them.Instead, it is thrown outwards by centrifugal force to the casing, as shown by the arrow, BC, just as a stone flies off from the common sling.

该行动的离心风机，表达了简单来说，就是如下：当风扇车轮，（ fig.25.2 ），进行叶片或叶片，乙，围绕在其套管，空气所动刀片，但不继续轮流与them.instead ，这是向外抛出，由离心力，以套管，显示箭头，公元前，正如一位石材苍蝇从共同吊索。

Provided is a blowing fan capable of increasing the wind quantity to be blown, even when set on a passage having a relatively large passage resistance, and reducing the blowing noise by providing a turbo blade in an optimum position of the rotor blade of an axial fan.

提供一种送风风扇，在轴流式风扇的旋转叶片上将涡轮叶片设在最合适的位置上，这样即使设置在流路阻力比较大的流路上，也可使送风的风量增大，同时可减小送风噪音。

This blowing fan has a hub connected to the rotating shaft of a motor and a number of blades mounted on the outside surface of the hub at fixed intervals to flow air in the centrifugal direction of the fan. Although this fan is produced in a shape of axial fan or diagonal fan by integrally forming the separate turbo blade on the tip or trailing edge of the rotor blade, the blowing noise can be reduced in addition to the increase in the entire wind quantity of the fan by embodying the optimum set angle of the turbo blade.

由连接在电动机的旋转轴上的轮毂和按一定间隔安装在上述轮毂外周面上的多片叶片构成、使空气向风扇的离心方向流动的送风风扇，虽然制作成将另外的涡轮叶片形成在旋转叶片的叶梢或后沿上而与其成为一体的轴流式风扇和斜流式风扇的形式，但通过实现上述涡轮叶片的最合适的设置角度，便使整个风扇的风量增大，同时减小送风噪音。

Then a single blade of fan is used to analyze the effects of different length of blade and different chord length of blade on its inherent frequency for the purpose of the study in the course of design.

然后由离心风扇单个叶片入手，研究了叶片长度、叶片弦长对风扇单个叶片的固有频率的影响规律，为下一步研究离心风扇的结构参数提供了依据和思路。

4 Axis immersion C Scan System for Engine Fan Blade Inspection – Thickness monitoring.

4轴水浸C扫描系统，用于发动机风扇叶片检测---厚度监测

A dual bridge immersion system has been installed at a UK manufacturer of titanium alloy plate, destined for fan blade manufacture.

一个双桥的水浸系统已经在英国的一个钛合金板制造商那里安装完成，该板用于风扇叶片的制造。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。