模态的

Then the detected signal was decomposed into a sum of finite intrinsic mode functions by empirical mode decomposition. The normalized kurtosis value of the main IMF components was analyzed, and the eigenvectors of the detected signal could be extracted.

用动态压力变送器获取了管道的动态压力信号，利用经验模态分解的方法将信号分解为多个固有模态函数之和，选择主要的IMF分量进行归一化峭度分析，从而提取信号的特征向量。

The relation between the result accuracy and the element number of the system is studied and shows the minimal element number to ensure the response result accuracy is determined by the excitation frequency and the modal modes of the system.

研究指出，保证计算结果精确性的最小网格划分数目与激励频率及管道系统的振动模态有很大关系，即由对管系响应贡献较大的最高阶模态振型决定，这一研究成果对实际管道系统振动响应计算中时间与空间节点的划分提供了理论依据。

Present a kind of paraconsistent modal logics PML by generalizing classical modal logics'truth value set from {0, 1} to [0, 1] , propose new logical consequence relationships by generalizing fuzzy implications in PML, introduce sound and complete Gentzen style inference systems in PML. 9. Global properties of valid formulas are the necessary conditions that must be satisfied by valid formulas.

8将经典模态逻辑公式的值域从{0，1}扩充到[0，1]，结合模糊逻辑推理关系的研究结果，建立了能处理不一致知识的模态逻辑，并给出其可靠而且完备的Gentzen型推理系统。

In this paper as an example of a typical large-span dome roof, the direct superposition method of Ritz vectors are used in the solution of the eigenvalue problem and the calculation of wind-induced response of the roofs.

大跨屋盖特徵值问题的求解是结构动力响应分析中最繁琐的一个环节，而且一些对结构响应贡献较大的高阶模态容易在传统的模态叠加法中被忽略。

In the analysis, a nonlinear wave vibration equation of the thin cylindrical shell including damping and items due to geometric nonlinearities was established and then transformed by Galerkin's method. With different combinations of modes different nonlinear differential equations in modal coordinates were obtained. The Runge Kutta method was used to solve the equations numerically and some features of nonlinear wave vibration were discussed.

在研究过程中，首先，考虑阻尼并引入几何非线性项，建立薄壁圆柱壳的非线性波动方程，然后，采用Galerkin方法对波动方程进行转换，选取不同的模态组合，得到相应模态坐标下的非线性微分方程，最后用Runge-Kutta法进行数值计算并对圆柱壳的非线性波动振动特性进行了分析。

For the four laterals simply supported plate, the transverse deflection of plate is expanded over the modal shapes, the electroelastic model with self-sensing actuators plate is given, and the current is considered as output variable of measurement equation. Generalized modal coordinates being state variables, LQG and H∞control is proceeded using the state space equation.

将板的横向位移按模态展开，对配置压电自感作动器的薄板建立了模型，给出以广义模态坐标为状态变量的状态方程和以传感电流为输出的观测方程，在此基础上，对系统进行了LQG控制和H∞控制。

Based on the analysis of the stability of the nature tailless UAV, The control system of the tailless UAV is designed by using the classical control method and a time-based method is used that can tune up control law parameters automatically by virtue of optimizing.

为了使所设计的控制器参数较优，本文以滚转保持与控制模态为例，采用了一种带有时域约束的优化控制方法设计出这些回路的基本控制律参数，并针对各控制模态在频域内进行稳定性分析，证实了该调参方法在工程上可以得到很好的应用； 4。

Later,calculation of vertical velocity and dispersion relation for three-ply type areperformed, as is done for the case when density is stratified continuously. For thelatter, it gives internal wave's propagation form in space.

针对密度分布的三层模式，计算了垂向速度模态与内波的色散关系；连续分层的情况，则给出了半板造波的垂向模态分布与空间传播形态。

Experimental modal analysis of damaged cantilevered beams was used to study the previously proposed pragmatic parameters which are based on mode shapes to exhibit the desired jump.

本文结合对悬臂梁的试验模态分析数据，对现有的两种基于模态振型的损伤识别方法进行了研究，并对这两种方法的可靠性进行了验证分析。

Based on the equilibrium equation, the states of self-stress and the modes of inextensional mechanisms are solved by the singular value decomposition method.

在建立空间杆件体系平衡方程的基础上，采用广义逆方法求解各种情况下的平衡方程，采用奇异值分解方法求解索杆的机构位移模态和自应力模态，并推导了力密度方法的基本公式。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。