摄动方法 meaning in English
perturbation methods
Examples
- Numericaj results are presented by a majss of tables and figures . in the second part , we propose direct perturbation methods of eigensensitivity ana1ysis a defective nlatrix for three different cases
在第二部分中，我们给出了在三种情形下亏损矩阵的特征灵敏度的直接摄动方法。 - Compared to linear item , the nonlinear item is not small in these systems . so the traditional perturbation methods may not be applied in strongly nonlinear system directly
对于强非线性系统，由于非线性项相对于线性项不再是小量，所以传统的摄动方法往往不能直接应用来研究强非线性系统。 - Employing perturbation method and numerical simulation , we study the flow in rotating helical pipes including different rotations , different cross sections ( circular , elliptical , annular and square cross section ) , and different geometrical structures
采用摄动方法和数值计算方法，研究了处于多种旋转状态下、多种截面形状(圆截面、椭圆截面、环形截面、矩形截面) 、不同几何结构旋转螺旋管道流动。 - By using vector random field model and second - order perturbation method , viscoelastic stochastic finite element formulation is developed , which can take the correlation of random parameters into account and is suitable for stochastic structural analysis with larger variance of the uncertainties
利用向量随机场模型和二阶随机摄动方法，给出了相应的粘弹性随机有限元列式。能够考虑参数的相关性，更加接近于prony级数的参数测试过程。 - A new type of viscoelastic stochastic finite element method is established using first - order perturbation theory based on local averaging method of random field and karhunen - loeve expansion theory of random process . the amount of computations is greatly reduced by transforming correlated random variables to a set of uncorrelated random variables . the relations of different random response variables are analyzed and monte carlo simulations for viscoelastic stochastic structures are investigated
基于随机场的局部平均法以及随机过程的karhunen - loeve分解理论，通过一阶随机摄动方法建立了考虑材料近似不可压缩的粘弹性随机有限元公式，由相关结构分解减少计算量，分析了各结构随机响应量之间的关系，给出了数字特征的计算方法，研究了粘弹性随机结构的montecarlo模拟验证方法。