顫振運動 的英文怎麼說
中文拼音 [zhànzhènyùndòng]
顫振運動
英文
zitterbewegung-
On the bases of carrying out idle operation, cutting and modal experiment of certain numerical controlled lathe, it is determined that weak dynamic stiffness in the spindle component of machine tool is the reason in the respect of structure for causing cutting vibration of machine tools
摘要在對某型數控車床進行空運轉、切削及模態試驗的基礎上，確定了機床主軸部件動剛度薄弱是引起機床切削的結構顫振方面的原因。Finally, the 2d unsteady navier - stokes flow solver is coupled with two - degree - of - freedom flutter motion equation in time domain to investigate the flutter characteristics of several supercritical airfoils
最後，本文將二維非定常nayier - stokes方程解算器與顫振運動方程耦合，研究了超臨界翼型的跨音速顫振特性。Then the steady and unsteady subsonic, transonic and supersonic viscous flows around airfoil and some aircraft are numerically simulated. the 3 - dimensional unsteady navier - stokes equations are solved using the implicit lu - nnd algorithm, with baldwin - lomax turbulent model. on the basis of simulating unsteady viscous flow, coupling the structure dynamics equations, the problems of static aeroelasticity and flutter are investigated for wings and elevator
在模擬非定常粘性繞流的基礎上，與顫振運動方程相耦合，分別對機翼和全機流固耦合現象中顫振問題進行了研究，準確求解跨音速顫振臨界速度，分析機翼和全機的從亞音速到超音速范圍的顫振規律，並研究分析了機翼飛行迎角變化對顫振速度的影響。Apart from the mathematical properties of the dirac operator we investigate the behavior of observables such as position, velocity, momentum, describe the zitterbewegung, and formulate the localization problem
除了狄拉克運算元的數學工具之外，我們研究諸如位置，速度，動量等看得見的客觀屬性，描述了顫振，並闡述一些局部問題。Flutter is the most important instable problem and it restricts the flight envelope and performance of a vehicle. aeroservoelasticity, including active flutter suppression technology, is a multidisciplinary optimization technology that studies the interaction of flexible structure, unsteady aerodynamics and flight control system
以主動顫振抑制系統設計為代表的氣動伺服彈性力學（ ase ）是一門涉及柔性結構、飛行器運動引起的定常和非定常氣動力以及飛行控制系統相互作用的多學科技術。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。As a special form of vibration, flutter is a major feature closed with the run environment and safety of aircraft, which is an important project of human - machine - environment engineering
作為一種特殊的振動形式，顫振與飛行器的運行環境和安全性密切相關，是人機與環境學科的一個重要研究課題。One is null oscillation occurred in the ehs valve, the second is the failure in the torque motor circuit, and the third is the load disturbance in the actuator
然後對系統中其他幾種故障作了分析，包括伺服閥中位顫振故障；線圈故障；液壓缸運動慣性變化故障。分享友人