提出了一种改进的等效线性化方法。
The equivalent linearization method is widely used in nonlinear dynamics, especially for qualitative analysis.
包括等效线性化、等效非线性化方法及其综合。
The methods include: equivalent linearization method, equivalent non-linearization method and their syntheses.
使用等效线性化技术与单模态近似得到响应的均方误差方程。
A response equation for the mean square deflection is obtained under a single mode approximation by using the equivalent linearization technique.
将等效线性化法与谐波平衡法相结合，求出了系统的近似解析响应。
By combining equivalent linearization method with harmonic balancing technique, the approximate analytic response was obtained.
利用等效线性化的方法分析了工程机械结构的间隙非线性振动问题。
The equivalent linearization method is used to analyze the nonlinear vibration of engineering equipments caused by certain gap between different parts as well as some preload inclination.
与分段等效线性化方法相结合，也可用于某些非线性系统的响应计算。
Combined with the piecewise linearization, it can be used to compute the response of some nonlinear system.
基于等效线性化的隔震工程设计参数，建立非比例阻尼隔震结构模型。
The structure is modeled as non-proportionally damped system based on equivalent linearized parameters which is used for practical design.
应用等效线性化方法得到方程组的线性化刚度矩阵，给出了结构等效一阶频率的计算方法；
Then, an equivalent linearization method is applied to get its linearized stiffness matrix. The estimating method for the equivalent fundamental frequency of the membrane is deduced.
本文提出了一种在非零均值非平稳高斯激励下获得非线性多自由度系统响应的等效线性化方法。
An equivalent linearization method for obtaining the response of nonlinear multi-degree-of-freedom dynamic systems to nonstationary gaussian excitation with nonzero mean is presented.
根据作者提出的双参数线性化概念，对波流共同作用下倾斜杆件上的波浪拖曳力作了等效线性化。
Based on the double factors linearization concept proposed by authors, the drag force acting on inclined cylinder in wave-current field has been linearized.
将土与群桩体系视为一个整体进行有限元离散，采用等效线性化方法考虑土体的动力非线性性能。
The interaction system as an integrality is modeled by some finite elements and the dynamic nonlinearity of soils is considered through the equivalent linearity method.
采用一维等效线性化方法，根据场地土动力性能试验资料，确定不同抗震标准下的设计地震动参数。
According to the data of dynamic property of the site soil, the design ground motion parameters of the different level are calculated by the equivalent linear method.
工程上广泛应用的现行土层地震反应分析方法即为借助快速傅里叶变换和迭代法的等效线性化频域方法。
The current widely used methods of seismic response analysis for soil layers in engineering are equivalent linearization frequency domain method which is based on FFT and iterative method.
针对两种非线性温度梯度模式及具有不同顶、底板厚度的一般箱梁桥，推导了等效线性化后的特征参数计算公式。
The formula of characteristic coefficient for equivalent linearization is derived for two kinds of thermal gradient modes and general box girders with different depths of top and bottom flanges.
运用随机振动理论与随机等效线性化理论建立了邻联间安装粘滞阻尼器后最大相对位移及墩顶最大位移的计算方法。
The peak relative displacement between adjacent segments and the peak pier drift are obtained based on random vibration theory and stochastic equivalent linearization method.
利用等效线性化方法推导了具有渐硬非线性复位弹簧的滑动系统的高斯白噪声激励稳态随机响应概率分布的解析解。
The analytic solutions of the probability density of the steady state responses of Coulomb sliding systems with gradually strong springs to Gaussian white noise are derived.
本文应用扩展的卡尔曼滤波估计结构动态参数，文中提出一种简便的减缩变量卡尔曼游波方法，采用等效线性化原理识别结构的非线性参数。
A reduced Kalman filter method for estimating the dynamic parameters of structures is presented in the paper. The results of calculation and test show that this method is effective.
推导同时考虑弯曲变形和剪切变形时的群桩刚度矩阵，采用分别计算各子结构阻尼的方式来考虑整个结构的阻尼，并采用等效线性化原理来考虑土体的非线性。
Stiffness matrix of the piles was given, including bending and shear deformation effects. The damping of the entire structure was calculated using the damping of each of the sub-structures.
根据材料力学公式可以计算建基面上任意点的线性化等效正应力。
The linear equivalent normal stresses of the base surface can be easily calculated by the formulas of material mechanics.
对非线性环节，应用等效面积方法把本质非线性的PWM过程线性化，从而给出不同工况下系统的线性模型。
To modeling the nonlinear part, nonlinear PWM process is linearized by equivalent-area method, so linear models of whole system in every condition are built.
首先，对飞机纵向运动的非线性模型进行输入输出反馈线性化，将其等效为一个三阶线性系统，并同时实现了解耦。
Firstly, the original nonlinear model of the aircraft longitudinal motion is linearized to a three-order decoupling system via the input-output feedback technique.
首先，对飞机纵向运动的非线性模型进行输入输出反馈线性化，将其等效为一个三阶线性系统，并同时实现了解耦。
Firstly, the original nonlinear model of the aircraft longitudinal motion is linearized to a three-order decoupling system via the input-output feedback technique.
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