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1)  zigzag-shroud
锯齿型叶冠
1.
According to characteristic of the turbine blade with zigzag-shroud and the lab condition,the clamp to the blade was designed,three kinds of experiment model was used,single-blade model,three-blades model and several-blades model,and the modal experiment and harmonic experiment was finished for analyzing the vibration characteristics of the turbine blades with zigzag-shroud in this paper.
为了研究锯齿型叶冠的振动特性,本文根据锯齿冠叶片的特点和试验条件,设计了夹持锯齿冠叶片的夹具,分别以单叶片、三叶片联装和多个叶片联装模型为实验模型,完成了带锯齿型叶片的瞬态激振试验和简谐激振试验。
2)  modelling experiment
锯齿冠叶片
3)  serrated shroud
锯齿冠
1.
The structural design for serrated shroud of turbine blade was very important for the reliability,life and safety of aeroengine.
涡轮叶片锯齿冠的设计对于保证发动机的可靠性、寿命和安全至关重要。
2.
The relationship of characteristic parameters(λ、ψ、βu、Δβ)of serrated shroud was derived based on the structure principle of serrated shroud,and was diagrammatized to the characteristics of serrated shroud.
根据锯齿冠结构原理,导出了包含锯齿冠结构特性参数(λ、ψ、βu、Δβ)的关系式,即锯齿冠结构特性方程,并将其图解成锯齿冠结构特性曲线,直观、清晰地描述了各特性参数之间的关系和变化规律;揭示了由实际条件产生的"紧度偏差",论述了锯齿冠结构的设计方法。
4)  turbine sawtooth shroud
涡轮锯齿冠
5)  side-entry serration root
侧装式锯齿型叶根
6)  sawtooth shape tip
锯齿形叶梢
1.
The effect of the sawtooth shape tip on tip vortex of the propeller is studied with the theory of vortex dynamics in the paper.
本文用涡动力学理论分析了锯齿形叶梢对螺旋桨的梢涡的影响。
补充资料:冠醚型高分子螯合剂
分子式:
CAS号:

性质:冠醚是一种环状的聚乙烯醇,由于其形状类似皇冠而得名。冠醚中以醚键形式连接有4~12个氧原子,起配位作用,是选择性很高的螯合剂。有时以氮原子替换氧原子。冠醚经高分子化后连接在聚合物主链上,构成性能优异的高分子螯合剂。根据冠醚环的大小和配位原子的多少,对直径和价态不同的金属离子具有选择性螯合作用。

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