modal matrix

Shear vibration and the modal matrix for the multistory rigid frames

多层刚架剪切振动及模态矩阵

Identifying Modal Matrix of a Lumped Parameter Vibration System by Pole-zero Points of Transfer Function

应用传递函数的零、极点辨识集聚质量系统的模态矩阵

In this method , the conjugate complex modal matrix is used as modal transfer matrix and the machine is decomposed into two conjugate substructures .

共轭子结构解法以共轭复模态矩阵作为模态变换矩阵，整机相应分解为两个共轭子结构。

Expressions for purging composition data and row vectors of inverse of modal matrix , which are helpful in simplifying calculation , are developed .

本文提供了在运用特征向量法过程中对组成数据进行清洗的方法和有助于简化计算的模态矩阵之逆矩阵的行向量表达式。

The combination of nonlinear modal matrix and effective independence method of optimal sensor location is proposed . The nonlinear average modal matrix and the most disadvantaged modal matrix are defined for nonlinear system .

研究非线性结构的非线性模态特性，提出非线性模态矩阵和有效独立法相结合的传感器布置方法，定义非线性平均模态矩阵和最不利模态矩阵。

By establishing physical model and mathematical model of the vibro-impact system , using regular modal matrix method to decouple the vibro-impact system , and working out the analytical solution , linear matrix and poincare mapping of different system by analytic method . 2 .

通过建立碰撞振动系统的物理模型和数学模型，利用正则模态矩阵法对碰撞振动系统进行解耦，并用解析法求解了碰撞振动系统周期运动的解析解和线性化矩阵和各个系统的Poincare映射。

This paper studies the problem of structural dynamic load identification based on measured strain response , deduces the strain modal matrix of structure measured points , and constructs an efficient and precise equation of load identification by using the high precision integration scheme based on modal decoupling .

研究基于实测应变响应的结构动载荷识别问题，推导出结构测点应变模态矩阵，在模态分解的基础上应用精细逐步积分法构造了一种高效精确的载荷识别公式。

Main Force Method , an Assembly Method of Modal Force Matrix

一种模态力矩阵组装方法

Numerical simulation of extracting modal back-scattering matrix from reverberation in shallow-water waveguide

用本方法可以识别出系统的模态参数（包括应变模态、应力模态）。由浅海混响数据提取海底反向散射矩阵的数值模拟

By modal stiffness matrix , modal mass matrix and modal frequency , shaft units of simulator is designed . The former three steps natural characteristics are identical with the real units ' .

依据设计原则，利用模态刚度矩阵、模态质量矩阵和模态频率相似进行了扭振模拟机轴系的设计，扭振模拟机轴系前三阶固有特性与实际机组轴系扭振动特性基本一致。

This paper presents a concept of system damping ratio matrix and modal damping ratio matrix based on the critical damping matrix , extending the concept of damping ratio to the MDOF system from SDOF system .

本文将单自由度系统阻尼比的概念推广到多自由度系统，在临界阻尼矩阵的基础上提出了系统阻尼比矩阵和模态阻尼比矩阵的概念。

The modal-perturbation method , which is the combination of the modal analysis method and matrix perturbation method , is applied in nonlinear rotor system .

将模态迭加法和矩阵摄动法相结合，应用于非线性转子系统的动态特性分析。

Modal analysis and transfer matrix methods are used in this paper to analyze the influences of blades on the torsional vibration characteristics of steam turbine generator rotor system with discrete model .

对汽轮发电机组轴系的离散质量模型采用传递矩阵方法和模态综合技术研究了中、低压末级长叶片切向弯曲振动对轴系扭转振动的影响。

In the paper , an intuitionistic method is proposed for identifying the main modes and evaluating the contribution of modal cross_correlation by use of the normalized modal displacement covariance matrix .

文中提出，依据归一化模态广义位移协方差矩阵来判别网壳风振主要贡献模态以及分析模态相关性影响，是个简明直观的方法。

This method is based upon static and dynamic experiments of various machine tool components , and then put through assembly step by step for modal synthesis . The static test is to obtain attachment modal matrix , while the dynamic test , to get the reserve modal information .

该方法首先通过机床部件的静力实验，找出部件的附着模态矩阵，通过动态实验获得有关机床部件的保留模态信息。

In the end , Aiming at the problem of optimal placement of strain sensor , the optimal placement criterion based on strain modal assurance criterion is advanced , and to study on the method that choosing some sensor placements by using strain modal information matrix .

论文提出了基于应变模态保证准则的应变传感器优化配置准则以及基于应变模态矩阵信息阵的2-范数初步拟定一小组传感器布位的方法，并对剩余传感器布位优化采用的改进遗传算法进行了研究。