阻尼葉片 的英文怎麼說
中文拼音 [zǔníyèpiān]
阻尼葉片
英文
damping vane-
Wear failure analysis of plasma spray coating on damping area of turbine blade
渦輪葉片阻尼面等離子噴塗層磨損失效分析Based on the structural feature of long blade with friction damper, pretwist beam element and space straight beam element were adopted to discrete the blade, and the numerical model of damper link element was established, then the gross finite element motion equation of the blade was obtained
針對帶摩擦阻尼器長葉片的結構特點，採用扭曲梁與空間直梁單元模化葉片，推導葉片阻尼連接單元的力學模型，由此建立葉片總的動力特性分析方程。Adding damped structure can decrease dynamic stress of blade and avoid blade fatigue failure from forced vibration
摘要為了防止透平機械長葉片因振動而導致的疲勞損壞，目前普遍採用的方法是在葉片上增加摩擦阻尼結構。Dynamic characteristic of various dampers of blades can be analyzed by the numerical model, and it may be usable for optimization of damped blade
分析結果表明，該數值模型可以應用於多種摩擦阻尼器長葉片的振動特性分析及優化設計，將為阻尼葉片的設計提供實用工具。To this problem, on the basis of the work property and characteristics of the water turbine ' s blade. the finite element mechanics model of blade vibration characteristic is described with the eight - node three - dimensional nonconforming and all parts of blade damp are analysised, the calculating model of blade damp is built, the tackling method of blade damp in calculating of dynamic stress is presented
本文根據水輪機葉片的特點和工作性質，採用空間八結點非協調等參單元描述水輪機葉片運動特性的有限元力學模型，詳細分析了水輪機葉片阻尼各組成部分，並建立了葉片阻尼的計算模型，提出了葉片阻尼在動應力計算中的處理方法。In addition, aerodynamic stiffness and aerodynamic damping on the system are already obtained in the condition of fluid - structure interaction. it is known that aerodynamic loads are associated with blade vibration. the systematic eigenvalues are used to judge whether the flutter occurs so as to find the stable operating range of a wind turbine
本文把風力機葉片簡化為懸臂梁，對梁截面的二維葉型建模，完整推導了二維葉型的線性運動微分方程和流構耦合條件下系統的氣動剛度和氣動阻尼，此時氣動載荷與結構的位移矢量以及速度矢量是相互耦合的，再利用系統的特徵值來判斷葉片顫振是否發生，從而獲得風機的穩定工作范圍。分享友人