槳葉頻率 的英文怎麼說

中文拼音 [jiǎngbīn]
槳葉頻率 英文
propeller blade frequency
  • : 名詞1. (劃船用具) oar; paddle 2. (螺旋槳) propeller
  • : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
  • : 率名詞(比值) rate; ratio; proportion
  • 槳葉 : awe; paddle
  • 頻率 : frequency; rate
  1. Frequency tests of helicopter rotating rotor blade

    直升機旋翼旋轉狀態下固有的測試
  2. In chapter 3, the non - linear equation was linearized with the jacobi matrix, and then the linearized equation was transformed into fixed frame to analyze the stability problem with eigenvalue method ( on - ground or hovering ) or floquet theory ( forward flight ). meanwhile, the equation was perturbed by sweep frequency excitation from steady state to get transit decay of lag response which was then transformed into fixed frame with a numerical fourier coordination transformation ( fct ). the fixed frame response along with the body response was analyzed via an fft to determine modal frequencies

    然後,在穩態響應的基礎上利用雅各比矩陣對非線性方程進行了線化,線化后的方程利用多坐標變換轉換到固定系下后,利用直接特徵值分析(地面、懸停)或floquet理論(前飛)對系統進行了穩定性分析;同時,對系統進行了瞬態響應分析;在系統達到穩態的基礎上進行掃激勵,用fft變換求得系統,進而用移動矩形窗方法分析得到系統的阻尼。
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