数值方法

Starting from the output signal-to-noise ratio of vibration tables, the basic requirements of background noise of the foundation are determined, then the dynamic analysis of the foundation for tables and a laser vibrometer, and the static analysis of the foundation for the laser vibrometer are done with finite element method.

首先以振动台台面输出信噪比为出发点，确定了超低频标准振动台基础噪声的基本要求；然后采用有限元分析的数值方法，分别对振动台基础与激光测振仪基础作动力学分析，再对激光测振仪基础作静力学分析。

It was shown that the variations of the stress field of rock strata,deformation and displacement of discontinuous blocks,strata collapse and abscises could be efficiently figured out by means of DDA.

应用DDA数值方法模拟分析了深部煤矿开采中上覆岩层的应力场变化和变形移动规律，并与相似物理模型试验进行了对比。

It seems that Smale horseshoes in mechanical systems can only be determined by numerical methods or by simplified mathematical maps.

目前，力学系统中的马蹄是由数值方法或根据简化后的数学模型确定。

In the computation Van Leers scheme is used to discretize the inviscid flux terms and a new Limiter function is constructed to realize TVD character.

数值方法中选用Van Leer 分裂格式离散无粘通量项，并构造了一种限制器函数以保证TVD性质。

The theory, equations and numerical method of parabolized proliferation of fluid movement Wang Ruquan as a main participant, 1997

流体运动的扩散抛物化理论、方程和数值方法（主要参加者王汝权，1997

The dynamic responses of a two-degree-freedom vibration system with dry friction and the routs from periodic motion to ch...

进而利用数值方法对一两自由度干摩擦振动系统的动力学响应进行了分析，得到系统经周期运动失稳通向混沌的道路。

There are many engineering problems with singularities. It is significant to develop new methods to solve them.

目前工程界存在着大量的奇异性问题，研究新的数值方法以提高奇异性问题的计算精度，对国民经济的发展有重要的意义。

The methods numerical simulation and design in this paper present a guidance to the design and application of large-scale solar chimney power plant system.

该文数值方法和设计方案为大规模太阳能热气流发电系统的设计和应用提供参考。

Then the numerical method is applied to predict the resistance, the lateral force and yaw moment on the ship at different drift angles in shallow water with different water depths, and the influences of the water depth and drift angle on the hydrodynamic forces are analyzed.

在此基础上，采用本文的数值方法对不同水深情况下船舶以不同漂角斜航时所受的阻力、横向力和转首力矩进行预报，并分析了水深和漂角对斜航运动船舶水动力的影响。

Three numerical approaches to the classification of Chinese species of genus Abelia.

标题 三种数值方法在几种六道木分类中的应用。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐