blade-element theory 中文意思是什麼

blade-element theory 解釋
葉片基元理論
  • blade : n 1 （殼、草等的）葉片，葉身，葉。2 刀片；（安全）剃刀刀片 （＝ razor blade）; 刀口，刃；刀，劍；...
  • element : n 1 要素；成分；（構成）部分；分子。2 【化學】元素；【數學】元，素；【機械工程】單元；單體；【無...
  • theory : n. 1. 理論，學理，原理。2. 學說，論說 （opp. hypothesis）。3. 推測，揣度。4. 〈口語〉見解，意見。
  1. Presents the model proposed for analyzing the vibration characteristics of shrouded blades and their calculation method by employing a wave propagation theory and modal synthesis technology coupled with a finite element method from the view point it is possible not only to conduct frequency modulation of the shrouded blades of a gas turbine, but also to utilize the friction effects between them to dissipate energy, thereby attaining the aim of vibration alleviation, as shrouded blades have been widely used in the design of high - speed turbomachinery, such as modern gas turbines and steam turbines, and with the shrouded blades forming an integral whole in a centrifugal force field, the vibration characteristics of the whole ring of blades are different from those of a single isolated blade, and this makes it essential to take into account the integral effect of blade shrouds, concludes from the calculation examples and engineering application that the above approach is valid and correct along with the possibility of considerably reducing the scale of calculation and analysis, and points out it is necessary to take into consideration the coupled effect of the whole ring of blades while the dynamic characteristics of shrouded blades is being analysed

    帶冠葉片不但能調頻，還可以利用葉冠之間的摩擦效應來耗散能量，達到減振的目的.帶冠葉片在離心力場中形成一整體，其整圈葉片振動特性不同於單個孤立葉片，需考慮葉冠的整體效應.利用帶冠葉片系統的循環對稱性，提出了採用波傳播理論和模態綜合技術，結合有限元方法研究燃氣輪機帶冠葉片振動特性的分析模型和計算方法.算例和工程應用證明了該方法是效性的、正確的，並可以大大降低計算分析規模.研究表明帶冠葉片動力特性分析時必須考慮整圈葉片的耦合效應
  2. In the present work, there are two methods to design the shrouded - propeller. one is based on the blade element and momentum theory, the other is based on the ufbng - line ( surface ) theory derived from circumfluence theory

    在實際工作中，函道螺旋槳的設計有兩種方法，一種是基於葉素理論與動量定理的工程方法；另一種是基於升力線（面）方法的環流理論方法。
  3. Combined with blade element theory, the results can be used to evaluate aerodynamic characteristics of flapping wings, which are helpful for the initial design of micro rotary and flapping wing

    運用本文方法分析了各參數對翼型氣動特性的影響，進一步結合葉素理論還可以估算撲翼的氣動特性，進而指導微旋翼或撲翼微型飛行器的初期設計。
  4. In this paper, schmitz theory is applied to design the blades of a 600kw horizontal - axis wind turbine, and aerodynamic performance of the wind turbine is analyzed by the theory of the blade element

    本文應用schmitz理論設計了? 600kw水平軸風力機的葉片，同時應用葉片基元法理論分析了該風機的氣動性能。
  5. Based on the researches of shell and co - axial rotors, the aerodynamic characteristics of the helicopter in hovering are studied by means of the combination of momentum theory and blade element theory in this paper. an aerodynamic mathematical modeling has been established

    在以上研究的基礎上根據碟形無人直升機的設計要求，選擇了該直升機的結構型式和總體參數，並對其性能進行了計算。
  6. Using three - dimensional finite element techniques, wave propagation theory, modals synthesis theory and numerical analysis methods, the vibration characteristics of steam turbine system are studied. according the structural features of practical blade discs, the 3 - d 8 - node element model is used because of its fitness to complex structures

    本文採用三維有限元技術、波傳播理論、接觸分析、預應力模態分析等數值分析方法，對汽輪機葉片?輪盤系統的振動特性進行了深入而較全面的分析研究。
分享友人
分享到 Line

分享到臉書