看待这个问题的一种方法是，系统模态只不过是一组非常复杂的滤波器，在频率基础上具有将输入信号进行放大和衰减的能力。
One way to look at it is that the modes of the system are nothing more than a very elaborate set of filters which have the ability to amplify and attenuate an input signal on a frequency basis.
本文采用改进的自由界面模态综合法计算汽轮机叶片组的固有振动。
In this paper, the improved free-interface coupling method is adopted for dyna - mic analysis of blade groups.
本文利用一组实测的不完全模态对所考虑结构的有限元理论模型进行修正。
This paper has made use of a set of measured incomplete modes to improve an analytical finite element model of the structure under consideration.
本文给出了一般开链弹性机器人机构动力学方程。该方程是由关节广义坐标和杆件模态坐标联立的非线性微分方程组。
In this paper the governing equations of flexible manipulators are derived, which are nonlinear simultaneous differential equations of joint variables and link elastic modal coordinates.
这将有助于克服因数据组中有大量低于捡出限的数值而出双模态性的问题。
This will help to overcome problems of apparent bimodality caused by the presence of many below-detection-limit values in a data set.
本文将拱坝这样一种几何形状和边界条件都比较复杂的壳体结构划分为梁拱两组子结构，利用它们的一维模态建立动力方程求解振动问题。
A method is presented here for the dynamic analysis of arch dams by means of vibration modes of one dimensional arch and cantilever elements.
首先，将结构和气流整个作为一个系统，组集系统关于模态广义坐标的状态空间方程。
Firstly, the bridge structure is combined with wind as a whole system, and the system's state-space equation about the generalized coordinates of modes is assembled.
基于模态分析，从流体力学扰动方程组出发，推导出了特征方程。
Based on the normal mode analysis, the characteristic equations were deduced from the perturbation equations of fluid mechanics.
以往的研究得出：只要四组作动器满足某种对称形式布置，就可以实现声辐射模态的有源控制解耦，但是满足对称性布置的四组作动器位置有无数个。
Previous researches have proposed that as long as four groups of actuators are arranged symmetrically, active control decoupling based on radiation modes can be achieved.
这两组概念相关对应，均非模态的本质性特征或标准。
These two groups of concepts are related to and correspondent with each ot...
这两组概念相关对应，均非模态的本质性特征或标准。
These two groups of concepts are related to and correspondent with each ot...
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