本文提出了利用卡尔曼滤波技术识别线性定常振动系统参数的方法。
This paper presents a new method for identifying parameters of linear time-invariant vibration system by the use of Kalman filtering technique.
分析结果表明，水泵吸水池内部流动所引起的压力和振动变化关系密切，都是由吸入涡的非定常特性引起的。
The results show that the pressure signal changes are closely related to the vibrations, both of which are caused by the unsteady characteristics of the vortex flow.
试验证明了PIV技术可以应用于被动振动非定常复杂流场的测量中，并对两维翼流体旋涡诱发振动响应进行了分析。
The experiment shows that the PIV technique can be utilized to measure the unsteady complex flow of passive vibration, and analyses the vortex-induced vibration.
作为算例用它计算了后掠超音速平板叶栅由于振动引起的非定常空气动力功。
Program and unsteady aerodynamic work caused by oscillation of sweepback supersonic plate cascade were provided as an example of its application.
本文提出了用小扰动欧拉振幅方程求解振动叶栅非定常流场的方法。
In this paper, the Euler amplitude equation is developed to obtain the unsteady flow field in vibrating cascades.
基于改进的当地流活塞理论，推导了用模态坐标表示的弹性振动翼面的非定常广义气动力表达式。
Based on the improved local piston theory, this paper presents the matrix expression of generalized aerodynamic forces expressed by the generalized coordinates.
本文给出了确定风力透平叶片振动时二元非定常气动力解法，包括在非失速和失速两种条件下的非定常气动力。
This paper presents a method for determining unsteady aerodynamic force on oscillating blade of wind turbine, both stalled and unstalled.
此外，通过对振荡叶栅非定常流场结构的研究，发现了叶片吸力面气流分离与叶片振动之间的耦合关系。
Through studying the structure of the unsteady flow field in vibrating cascades, the coupling relationship between flow separation on the suction surface and blade vibration is revealed.
根据流体力学中的绕球定常黏性流动理论，在振动台试验的基础上，设计了一套砂土液化及液化后流动特性的试验装置。
According to the theory of dropping ball viscosimeter, the test apparatus of flow characteristics of liquefied and post-liquefied sand is developed based on the shaking table tests.
本文首先研究气固非耦合条件下的振动叶栅内二维非定常粘性流动。
First, a 2-d unsteady viscous flow in a vibrating cascade is investigated under flow-structure uncoupled conditions.
本文首先研究气固非耦合条件下的振动叶栅内二维非定常粘性流动。
First, a 2-d unsteady viscous flow in a vibrating cascade is investigated under flow-structure uncoupled conditions.
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