The nonstationary random response of elastic circular arch under horizontal seismic excitation was studied by the method combining the pseudo-excitation algorithm with Galerkin algorithm.
应用虚拟激励法与伽辽金法相结合，分析弹性圆拱在非平稳水平随机地震作用下的随机响应问题。
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.
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。
The method differs from traditional FFT transform in its capability to analyze nonstationary noise signals of faulty mechatronics equipments. It offers a way for noise monitoring and fault diagnosis.
该方法不同于传统的基于FFT分析的声强计算方法，可以实现对非平稳故障噪声信号的分析，为机电设备的噪声监测和故障诊断提供了一条研究途径。
HHTM, including both heterostructure effect and nonstationary transport effect such as velocity overshoot effect, expends much shorter calculating time than Monte-Carlo method.
HHTM既包含了异质结效应，又包含了高场输运中的速度过冲等非稳态输运效应。
An integral inference method for nonstationary stochastic process is established.
建立一种非平稳随机过程整体推断方法。
This method more effectively suppresses spatial nonstationary and stationary noise than the adaptive null-forming beamformer method by using a rotatable main lobe in the 2-D plane.
这种方法更有效地抑制了空间的非平稳和固定噪声比使用一个可旋转的主瓣中的2-D平面空的自适应的成形波束形成方法。
Some nonstationary Iterative methods for large linear systems in MATLAB are introduced in this paper. We also introduce the mathematic description of the GMRES method.
本文介绍了MATLAB中求解大型线性方程组常用的非定常迭代法，并以GMRES算法为例介绍了算法的数学描述。
An equivalent linearization method is proposed to the case of the nonlinear multi-degree-of-freedom systems with combined excitations of nonstationary processes and deterministic forces.
本文还提出了非线性多自由度系统在非平稳随机激励和确定性外力的共同作用下，响应分析的等价线性化方法。
A reassignment method for nonstationary time-frequency joint analysis is introduced.
介绍了非平稳信号时频联合分析中的重排方法。
Heart sound is a highly nonstationary signal, and the Short-time Fourier Transformation (STFT) is an effective method for this kind of signal to be analysed.
心音信号是一种典型的非平稳信号，短时傅立叶变换(STFT，又称窗口傅立叶变换)是用于对非平稳信号进行时频分析的有效工具。
Finally, the method of solving instantaneous acceleration power spectrum of nonstationary random response of arbitrarily point on vehicle is presented.
最后给出如何求解车辆上任一固定点非平稳随机响应的瞬时加速度功率谱。
The paper introduces a prestack depth migration by nonstationary phase shift method suitable for laterally variable velocity.
介绍一种能够适应介质速度横向变化的非稳态相移算子及其叠前深度偏移方法。
Reversed order method is used to prove that the noise of driver axle is a nonstationary signal.
利用逆序法对驱动桥噪声信号的平稳性进行了验证，指出其噪声信号为非稳态信号。
The method is straight-forward and efficient, since it reduces the nonstationary response problem to complex algebraic operations only.
方法简便实用，它将非平稳随机响应问题归结为复代数运算。
DOA estimation method of nonstationary radar signals is proposed by time-frequency analysis method and Joint-block diagonalization method.
针对时频平面不可分离的相干非平稳信号，提出了基于对称阵列的解相干方法。
The transition of the covariance matrix of the nonstationary time series is obtained with Gaussian assumptions. An actual earthquake is studied by the method proposed and satisfactory res…
在高斯假定下得到非平稳时间序列的协方差矩阵的转移形式。对一个实际的地震过程进行的数字研究结果证明本文方法是有效的。
So the nonstationary wind speed mode based on the theory of multi-scale analysis method is required.
这就需要利用多尺度分析理论进行分析，建立强风下的非平稳风速模型。
Solution of Nonstationary Random Vibration of Linear Vehicle Systems with Variable Driving Speed by Mode Method;
对车辆系统变速行驶所引起的非平稳随机振动进行了研究。
Solution of Nonstationary Random Vibration of Linear Vehicle Systems with Variable Driving Speed by Mode Method;
对车辆系统变速行驶所引起的非平稳随机振动进行了研究。
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