顫動臂 的英文怎麼說
中文拼音 [zhàndòngbèi]
顫動臂
英文
dither arm-
She bent herself this way and that and examined herself before and behind, stooping to look at the side view of her bosom and at the sweeping contours of her thighs. and she ended with a strange amusement which consisted of swinging to right and left, her knees apart and her body swaying from the waist with the perpetual jogging, twitching movements peculiar to an oriental dancer in the danse du ventre
她慢慢地伸開兩只臂膀，展現她那豐腴的愛神的上身，她彎下腰，打量自己的背面和前面，目光停在乳房的側影上，注視著由粗到細的大腿，最後竟古怪地扭動起來，雙膝分開，左右搖擺，腰肢上部扭動著，像埃及舞女跳肚皮舞那樣不停地顫動著。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。
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