动力平衡方程 meaning in Chinese
power balance equation
Examples
- Sets up three - dimensional movement modal of towed - cable , the vector dynamic equilibrium equation is expanded under local coordinate , and numerically discreted by central difference on time and space through transforming eular angle
摘要建立拖缆的三维运动模型，通过欧拉角的变换把拖曳线列阵微元段矢量动力平衡方程在局部坐标系下展开，在时间和空间上作中心差分数值离散。 - The solution format and caculation step of nonlinear dynamic equilibrium equation was derived by newmark method in this article , and dynamic caculation flow chart and relevant program of the frp honeycomb structure was given in two dimension
本文采用newmark法推导出非线性动力平衡方程的求解格式和计算步骤，给出了二维场下玻璃钢拱形结构的动力计算流程图和相应的程序。 - To reproduce the narrow - band response , based on the thought of kanamori etc . , the damping ratio and natural period are modified . through this adjustment , the narrow - band response can be reproduced , but for some natural periods the adjustive damping ratio has become negative . the negative damping is strange and can not be explained by the equation of motion for sdof system
为了生成窄频带反应，本文根据kanamori等人的方法调整了计算时的阻尼比及自振周期，调整后的单边差分方法能在共振区域生成很好的窄频带反应，但是对一些周期点的阻尼比调整成为了负值，这从系统的动力平衡方程是难以解释的。 - 4 . with visco - elastic boundary of soil considered , the eigenvalue equation in frequency domain of soil dynamic equilibrium equation falls into a complex transcendental equation . in course of seeking its solution , based on argument principle and contour integral , with the aid of matlab , two numerical algorithm combined with the corresponding procedures for solving transcendental equations in a complex plane is developed by the author
4 、由于考虑了土体的粘弹性支承边界条件，使得其动力平衡方程在频域内的固有值方程为一复数超越方程，为了求解该方程，笔者基于幅角原理和闭合曲线积分，结合matlab ，提出了复平面上超越方程的两种数值解法，并编制了相应的程序。 - Considering the fuzziness of some boundary conditions enviroment media , and especially some loads in the engineering structure analysis , we go further into the computation based on the dynamic problem of fuzzy finite element ( ffe ) , study further and systematically the analysis and solution . the principle of fuzzy minimum potential energy is established , and the balance equation of fuzzy finite element is reasoned by making fuzzy variation . at the same time , the dynamic balance equation of stochastic by making stochastic variation ， also the fuzzy stochastic dynamic balance equation is deduced . based the theory that the degree of the fuzziness and probability can be measured , in the other word , by using the concept of fuzzy entropy and entropy , pure fuzzy dynamic structure is given through transforming the probability to fuzziness . for the fuzzy parameter can be regarded as a fuzzy vector with dimensions , the structure ' s eigenvalue , by the theory of small parameter
建立了模糊瞬时最小势能原理，运用模糊变分原理导出了模糊有限元动力平衡方程；同时，利用随机变分原理导出了动力问题的随机有限元方程，同时得到了模糊随机动力问题的有限元平衡方程。根据模糊度和概率度可以度量的原理，即利用模糊熵和概率熵的概念，把结构的随机性等效地转化为结构的模糊性，得到纯粹模糊性的动力结构。把结构所具有的模糊参数看作一个维的模糊向量，利用小参数摄动原理，把结构的特征值，特征向量和位移都在模糊向量的均值处进行泰勒展开，得到一组递归方程，即可以求得结构的模糊特征值，特征向量和模糊位移。