模态

It come of early of 80 ages, and has maturated in the development20 years.

模态分析技术是获得结构动态特性的重要手段，它起源于80 年代初，经过20 多年发展，至今已趋成熟。

It is shown that the first order strain mode shape is sensitive to the damage degree and location of the frame joints. And the existence of vibration node in high order stain vibration shape may lead to misjudging.

结果表明，一阶应变振型对损伤及其位置敏感，高阶应变振型节点的存在使得依据高阶应变模态进行损伤诊断时容易造成误判。

The I/O linearization method is applied to solve the mismatching problem of nonlinear perturbations in the system.

根据电堆温度机理模型，我们提出了变结构控制系统设计方案，快速平滑趋近律和快速收敛滑动模态被设计用来削弱抖振对系统的影响，并采用输入/输出线性化方法来解决系统中的摄动非匹配问题。

For multimodal function optimization problems, this paper analyzes several niching strategies, combines the crowding model with the clustering algorithm, and proposes a crowding clustering genetic algorithm.

对多模态函数优化问题，分析了各种小生境策略；将拥挤模型与聚类算法相结合，提出了一种拥挤聚类遗传算法。

Chalmers (1999) also argues that by assuming that physical properties can have phenomenal modes of presentation non-contingently, Loar's account is in effect presupposing rather than explaining the relevant strong necessities.

Chalmers (1999)也认为，通过假设物理属性能够非偶然地应用presentation的现象模态，Loar的说明在结果上预设了而不是解释了相关的强必然。

In this thesis the development of Noncontact Monitoring Technologies on steam turbine blade are compared and analyzed by the numbers, the theoretical measuring formula of bending vibrant blade is ratiocinated, and the Principle of Modal Analyzing on steam turbine blades are also summarized.

中文摘要：本文系统地比较分析了汽轮机叶片故障监测技术的发展与现状，并对汽轮机叶片弯曲振动的理论测量公式做了简要推导，就模态综合法在叶片振动分析中的应用进行了阐述。

A control scheme of micropositioner is proposed, two control methods are put forward: PID feedback control with BP neural network modeling in feedforward loopand fuzzy-PI sectionalized multimodal control

提出了微定位器的硬件控制方案，给出了两种控制方法：带有BP神经网络前馈环的PID控制方法和Fuzzv—PI多模态分段控制方法。

In the light of hysteresis, creep and nonlinearity of piezoelectric actuators, two control methods are presented. One is PID feedback control with BP neural network modeling in feedforward loop. Another is Fuzzy-PI sectionalized multimodal control. They are used for highspeed and precise position control of models driven by piezoelectric actuators.

针对压电陶瓷存在迟滞、蠕变和位移非线性等不足，提出了两种压电陶瓷微位移驱动器的位置闭环控制方法：带有BP神经网络前馈模型的PID控制方法和Fuzzy—PI多模态分段控制方法，实现了压电陶瓷微位移驱动器快速、高精度的位置控制。

The major research work has been done in the identifications, locations and severities of structure damage.

本文在对国内外结构损伤诊断研究系统归纳与总结的基础上，将振动模态分析技术与人工神经网络技术相结合，来探讨进行结构损伤诊断的方法。

This method reserves the disturbance information of signals through superposing a triangle mode on the original signal to localize disturbance.

该方法通过在原始扰动信号上叠加一个三角模态分量来保留扰动信息进而定位扰动。

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。