颤振临界速度 meaning in English
critical flutter speed
Examples
- Both h controller and synthesis are designed when the damping uncertainties in plunge
在稍大于颤振临界速度的风 - The numerical simulations agree well with the wind the tunnel experiments , and the critical speed is increased by 13 . 4 % . chapter 5 presents the robust flutter suppression of the airfoil
数值仿真和风洞实验表明,这两种控制器是有效的,可将系统的颤振临界速度提高23 . 4 % 。 - Numerical results are in good agreement with some data and the method and procedure presented in this paper are verified . and then the wing ? flutter characters of a missile wing are numerical simulated with the examples of a missile wing
以某导弹翼面为算例，对弹翼的亚、跨、超音速的颤振临界速度进行了数值计算，部分计算结果与风洞计算结果相比较，一致性很好。 - In chapter 4 , the aeroelastic model of the whole test rig is first established by using jones ’ s approximation of theodorsen ’ s unsteady aerodynamics load . then , the numerical simulations and wind tunnel experiments for the sub - optimal flutter suppression of the airfoil model are presented
数值仿真和风洞实验研究表明,以超声电机为控制面作动器可以有效地抑制翼段模型的颤振,颤振临界速度提高了13 . 4 % ,数值仿真和风洞实验结果基本吻合。 - 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
在模拟非定常粘性绕流的基础上，与颤振运动方程相耦合，分别对机翼和全机流固耦合现象中颤振问题进行了研究，准确求解跨音速颤振临界速度，分析机翼和全机的从亚音速到超音速范围的颤振规律，并研究分析了机翼飞行迎角变化对颤振速度的影响。