Trigonometric series

Method of Harmonics Measurement Based on Neural Network of Orthogonal Trigonometric Series

一种基于正交三角级数神经网络的谐波检测方法

And then the properties of some random trigonometric series are discussed .

，并进一步讨论了某些随机三角级数的性质。

Solving free edge rectangular flat plate on the elastic foundation with double trigonometric series

重三角级数求解弹性地基上自由边矩形板

The homogeneous solution which shows the border line effect is expressed by double trigonometric series .

而反映边缘效应特性的齐次解则是用双重三角级数表示的。

Solution of Bending of Rectangular Plates by the Method of two-Direction Trigonometric Series

用双向三角级数法解矩形薄板的弯曲

Integral orthogonality of trigonometric series in solving problem of elasticity mechanics by variations

三角级数积分正交性在变分法解弹性力学问题的探讨

Some properties of random trigonometric series

关于随机三角级数的某些性质

Application of trigonometric series for rigid wakes analysis of rotor aerodynamics in hover

悬停状态旋翼固定尾迹分析中三角级数的应用

Then , a trigonometric series is applied to describe the displacement mode satisfying the boundary conditions .

然后利用双三角级数构造满足层板分层区位移边界条件的位移模态。

Exact solution of Burgers equation by trigonometric series and Maple

用三角级数和Maple软件求Burgers方程的精确解

Discussion on the approach of double trigonometric series to the application of calculus of variations in solving plane problems

平面问题变分解法使用重三角级数问题的讨论

The trigonometric series should be complete and be suitable to the deformation resulting from the boundary displacement .

三角级数应是完整的正交三角函数族，其形式要切合板边界所能激发出的弯曲变形形态。

A new " trigonometric series scheme based on the frequency sampling " is proposed to simulate the track irregular signal .

提出一种基于频域采样的三角级数法模拟轨道线路不平顺信号。通过仿真，与传统方法相比，该方法不仅实现容易、模拟精度高，而且还能获得指定频率处的不平顺幅值。

Trigonometric series is used to simulate Gaussian stationary stochastic processes , and effective FFT method is adopted in particular .

探讨了三角级数合成方法模拟高斯平稳随机过程，着重研究了提高模拟效率的FFT方法。

Uniqueness of multiple trigonometric series

多重三角级数的唯一性

Transcendence of Certain Trigonometric Series

某些三角级数的超越性

The diagram of shearing force is formulated by trigonometric series and used to determine the coefficients in above expansions .

剪力图是由三角级数表示的，并用于决定上述本征函数展开式的待定系数。

The displacement components of a three dimensional functionally graded rectangular plate were expanded in the forms of double trigonometric series .

将功能梯度三维矩形板的位移变量按双三角级数展开，以弹性力学的平衡方程为基础，导出位移形式的平衡方程。

The superposition method of trigonometric series is-used .

本文采用单三角级数和重三角级数相叠加的方法，求得该问题的精确解。

Integrability Theorems of Double Trigonometric Series

双重三角级数的可积性定理

The algorithm is based on the Fourier trigonometric series to work out the difference between the master signal and fundamental wave as well as direct current .

算法实现为根据傅立叶三角级数求出总信号与基波及直流分量的差值作为补偿信号。

In this paper , trigonometric series method and difference method are used for solving the corner-supported hollow-core two-way pre-stressed concrete slabs .

本文对角点支承双向预应力混凝土大型多孔板给出了三角级数法和差分法两种解。

By adapting Davenport spectrum for horizontally fluctuating wind , wind velocity time history at the opening was simulated by using trigonometric series .

采用Davenport水平脉动风速谱，利用三角级数对开孔处的来流风速时程进行模拟。

This paper presents an analytical method of two dimensional problem of beam on elastic foundation by trigonometric series . General equations and relevant calculation formulas are derived .

本文提出了弹性地基梁平面问题的三角级数解法，建立了一般方程并导出了有关的计算公式。

In the case of simply supported lattice flat shells the solution of vibration equations would easily be calculated by using two functions of a double trigonometric series .

在四边简支的边界条件下，振动方程的解可由两个双重级数的试函数求得。

By employing the classical Kirchhoff shell theory , an approximate solution is obtained in which double trigonometric series are used to express the three displacement components .

采用基于Kirchhoff-Love假设的薄壳理论，用双富立叶级数表示柱坐标下三个位移分量，得到一个近似级数解。

Secondly , the concepts of intensity envelope and the effects of intensity envelope on the trigonometric series spectrum and response spectrum have been discussed in the thesis .

然后论述了强度包线有关概念并研究了强度包线对其反应谱和三角级数反应谱的影响。

From this it shows that in non-trigonometric series we also can obtain the precise result for approximation of a class just as in trigonometric series .

从中说明了对于非三角级数也能得到相应三角级数中类逼近的精密结果。

According to the boundary conditions of the curved slab , an analytical solution by trigonometric series and an approximate solution by method of finite strips have been given .

根据曲板的边界条件给出三角级数的解析解和有限条法的近似解。

In this paper , flexural functions consisting of trigonometric series of cosine and polynomial expression , are used to form general equations for solving rectangular cantilever plate .

本文选取由余弦三角级数和多项式组成的挠曲函数，得到求解矩形悬臂板的通用方程。