查询词典 solvable equation

Reduced order,the governing equation of a cylindrical shell may bechanged into two Helmholtz type equations.

而薄圆柱壳基本控制方程在经算子分解降阶处理后，得到的也是与二维弹性波散射问题相似的Helmholtz型方程。

First, response model in time domain of pile under the transient state of stimulated vibration is reduced according to damping wave equation, initial condition and boundary condition.

首先，从桩-土系统共同作用的阻尼波动方程入手，结合初始条件、边界条件，推导了完整桩瞬态激振下的时域响应模型。

By means of a resonable and approximate treatment the dependent variables of the integral equation are reduced to depend only on the two coordinates of the wing plane.

通过合理的近似处理，使积分方程的自变量仅依赖于机翼所在平面的两个座标，这就使我们在利用有限无法进行数值解时，只需在机翼平面上划分元素，避免了在流场空间中划分元素的传统作法，从而大大降低了对计算容量的要求和计算工作量，使跨音速三维机翼的气动力计算有可能在较小的计算机(例如709机)上完成。

Impedance matrix elements are computed by using fast Fourier transform, and reduced equation is solved by using diakoptic technique. Consequently, the computing time is reduced significantly.

阻抗元素计算和减缩方程求解，分别使用快速傅里叶变换和网络分解技术，从而大大提高了计算效率。

Thus, in industry it is easy to determine the BA level in vaporized solvent through saponif ication and calculate the BA level in resins with the regression equation. Finally to obtain the residual monomer level simply through reduction formula.

这样，在工业生产中就可通过皂化法方便地测得蒸出少量溶剂中的丙烯酸丁酯的含量，再利用回归方程算得树脂中的丙烯酸丁酯含量，最后简单换算出丙烯酸-氨基漆中残余单体的含量。

This text proceed with the theory of the vibration, utilize typical elastic hinge law analyze structure dynamics characteristic when the blade is quivered to instability, and then use relevant knowledge of blade vibration to simplify the model and the aerodynamic force of the vibration. Through the simplification, we can get the equation of the blade, which is dispersed to its instability. Then VISUAL BASIC procedure is utilized to work out thecharacteristic value of vibration and the vibration frequency. At last comparing the result which is calculated by the above-mentioned theory formulae with the result which is calculated by internationally agreed procedure ANSYS to verify the accuracy of the formula of reduction.

本文从振动理论入手，利用最为典型的弹性铰链法分析叶片发生颤振失稳时的结构动力学特性，然后对振动模型及振动时所受的气动力进行简化，利用简化方程得到叶片发生发散失稳时的振动方程，利用编制的VISUAL BASIC程序解出振动的特征值并得到振动频率，最后分别通过上述的理论公式和国际通用的有限元程序ANSYS对风力机叶片模型进行发散失稳时的频率计算，验证简化公式的准确性。

The contents of this paper are as follows:Firstly, we study the following semilinear elliptic equation with Dirichlet boundaryvalue problem:in the subcritical growth case we obtain at least two nontrival solutions by using the three-critical-point theorem and the reduction method.

我们首先研究下面半线性椭圆方程Dirichlet边值问题：在次临界增长情况下，利用变分方法中的归约方法和三临界点定理，得到了方程至少有两个非平凡解。

Redundant robots ; diffusion equation ; inverse kinematic map ; learning method

冗余机器人；扩散方程；运动学逆变换；学习算法

Analyzing the kinematics problem of the YJP-1 vision-servo redundant robot, the kinematics equation of the single arm has been established, the Jacobian matrix of front four joint has been formed using a new method.

对YJP-1型冗余度机器人进行了运动学分析。用D-H方法建立了YJP-1型冗余度机器人单臂的运动学方程。运用一种新的方法建立了YJP-1型机器人前面四个决定末端抓手位置的自由度的Jacobian矩阵。

In discussing the properties of reflection and refraction of fiber grating, the coupled-mode equation, envelope function, transform matrix formalism, multilayer and optical path approximation are used for describing the linear and nonlinear characteristic of optical fiber grating.

在分析光栅的反射和透射规律时，采用了耦合模式法，包络函数法，转换矩阵法，多层介质薄膜法以及光程法，这些方法虽然具有不同的数学和物理模型，但在分析光纤光栅这一特殊的波导结构时，可充分展现它的线性和非线性特性。

London based fashion photographer Matt Irwin might be is the next big thing in fashion photography.

总部位于伦敦的时装摄影师马特欧文可能会是下一件大事的时装摄影。

Based on IMC system,the response would be better if the model matched more satisfactorily.

由于系统基于内模控制设计，故模型匹配度越高，系统响应越好。