1) Whirl ratio
涡动比
2) high bypass ratio turbofan engine
大涵道比涡扇发动机
1.
The special requirements of structural design for the active clearance control,multistage turbine and high aspect ratio slim blade were analyzed for the technology features of high bypass ratio turbofan engine for the large transport aircraft.
针对大型运输机用大涵道比涡扇发动机的技术特点,分析了其涡轮结构设计中所采用的主动间隙控制、多级涡轮、高展弦比细长叶片结构设计的特殊要求,提出了提高可靠性和使用寿命的思路。
3) eddy(ing) motion
涡动，涡流
4) whirling
[英][hwə:l] [美][hwɝl]
涡动
1.
Research on whirling mechanism of bottom drillstring and its rules by inner simulated experiments;
下部钻柱涡动机理及规律的实验研究
2.
It is also pointed out that a drillstring may come into reverse motion only after its positive whirling.
本文对钻柱在井中的运动规律进行了较详细地分析,不仅再次说明了钻柱在本身自转的同时还进行着公转,而且指出了钻柱先是在做正向涡动,然后才可能发展到反向进动。
3.
Nonlinear dynamics of a cracked rotor with whirling were analyzed and were compared to a rotor without whirling.
分析了裂纹轴转子系统在考虑涡动时的非线性动力学行为 ,并与忽略涡动时的裂纹轴进行了对比 ,发现二者在周期分岔特性、振幅特性、轴心轨迹和庞卡莱图等方面均存在明显差异· 从而可以看出在考虑非线性涡动时 ,裂纹轴会出现复杂的动力学行为· 所得结论对于早期发现和诊断裂纹故障有一定参考价值
5) whirl
[英][wɜ:l] [美][wɝl]
涡动
1.
The drilling techniques of anti-deviation and fast penetration with pre-bending dynamics can make the well hole vertical by using the whirl features of the BHA of anti-deviation and fast penetration with pre-bending dynamics to create an anti-deviation force that is much more than the pendulum dropping force.
预弯曲动力学防斜打快钻井技术主要利用预弯曲动力学防斜打快钻具组合在井眼中的涡动特征,在钻头上形成一个远大于钟摆降斜力的防斜力,从而使井眼保持垂直。
2.
This paper studied the annulus whirling motion of rotary drill string.
把旋转钻柱简化为一内外有流体的柔性转子系统 ,分析了在内外钻井液流体作用下的钻柱涡动行为。
3.
In order to study half-speed whirl that is subjected to nonlinear oil force of rotor-bearing system, the Wu Elimination method and symbolic calculation method are combined in this paper.
为研究转子 轴承系统中非线性油膜力引起的半速涡动 ,本文给出了将吴文俊消去法和符号计算相结合的分析方法。
6) swirl ratio
涡流比
1.
The relation between swirl ratio and flow coefficient in Ricardo and AVL method,Ricardo and FEV method is analyzed.
分析了Ricardo方法与AVL,FEV方法所定义的涡流比和流量系数间的关系,对叶片风速仪和涡流动量计测量所得涡流比进行了比较,并介绍了评判气道综合性能优劣的方法。
2.
The swirl ratios calculated from the computed rotation speeds show that Ricard.
基于动量守恒原理,模拟计算出AVL和R icardo风速仪的转速,由此得到不同的涡流比并且进行了对比,结果显示:R icardo风速仪的涡流比比AVL风速仪的涡流比高。
3.
The influence of swirl ratio and spray pressure on the combustion process in cylinders is analyzed.
采用CFD模拟软件FIRE对高强化柴油机缸内工作过程进行了模拟,分析了涡流比和喷油压力对缸内燃烧过程的影响。
补充资料：因水火风动故地动
【因水火风动故地动】
经云：此阎浮提地，南北阔二万一千由旬，东西阔七千由旬，厚六万八千由旬。地下有水，厚八万四千由旬。水下有火，厚八万四千由旬。火下有风，厚六万八千由旬。风下有金刚轮，过去诸佛舍利，咸在其中。或有时大风忽动，火亦随动。火既动已，水复随动。水既动已，地即随动。故云因水火风动故地动。（梵语阎浮提，华言胜金洲。梵语由旬，华言限量，或四十里，或六十、八十里也。）
经云：此阎浮提地，南北阔二万一千由旬，东西阔七千由旬，厚六万八千由旬。地下有水，厚八万四千由旬。水下有火，厚八万四千由旬。火下有风，厚六万八千由旬。风下有金刚轮，过去诸佛舍利，咸在其中。或有时大风忽动，火亦随动。火既动已，水复随动。水既动已，地即随动。故云因水火风动故地动。（梵语阎浮提，华言胜金洲。梵语由旬，华言限量，或四十里，或六十、八十里也。）
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条