数学模型

The model of mine's trajectory is built,and the model of wallop is built.Then the underwater trajectory of the airdropped mine is simulated by Matlab/Simulink.At last,This paper gets the result of simulation and analysis.

在建立了六自由度的水雷水下弹道数学模型和水雷入水击水力计算的数学模型基础上，通过实例对水雷的水下弹道在Matlab/Simulink环境下进行了仿真计算，最后给出相应的仿真结果和分析。

The high viscosity of polymer solution can improve the mobility ratio between oil phase and aqueous phase. Therefore, it can expand sweep efficiency of displacing fluid. In the model of multi-polymer commixing flooding mechanism, each polymer flows in the porous media on its own ability, and the enhanced oil recovery process is resulted from the total concentration of all the polymers.

在多种分子量聚合物溶液混合驱油机理数学模型中，每一种分子量聚合物在油藏中流动满足各自独立的物质传输规律，在驱油机理上表现为多种分子量聚合物溶液浓度之和的总浓度总体驱油过程，驱油机理数学模型中的参数表示为各种分子量聚合物相应参数浓度加权平均的形式。

On the basis of analysing the mine production and haulage System the basic concepts and calculating methods for the reliability degree of mine production and haulage system are put forward The mathematical models for assigning the reliability degree and deigning the system are established in this paper .

本文在分析矿井生产运输系统的基础上，提出了矿井生产运输系统可靠度的基本概念及其计算方法，建立了可靠度最优分配的数学模型及最优生产运输系统可靠性设计的数学模型

ABSTRACT Based on analyzing thermal process of reheating furnace in Steel Factory of BaoTou Iron and Steel Company.

摘 要：本文是在分析包头钢铁公司的步进式加热炉热过程的基础上，针对其具体情况，建立了加热炉生产热过程中包括辐射换热过程和钢坯加热过程及其耦合过程的热过程数学模型，并对热过程数学模型求解方法进行了研究。

One underlying problem in hydraulic engineering is that we havent a strict theory to control the connection quality of hose assembly, i.e. we have no reasonable mathematic models in the designing of hose connector and the controlling of its swaging quantum.

液压工程中一个突出的问题是，对胶管总成连接质量控制没有一个严格的理论界定，表现为：①对胶管接头设计没有数学模型描述；②对总成压缩量没有数学模型描述。

This thesis introduces the development and background of main activated sludge models,and how to establish the mathematical model of a specific treatment process.

本文介绍了主流活性污泥数学模型的发展历程和相关背景知识，以及如何针对具体工艺建立并求解数学模型的方法。

As to the mate lag problems in loom beat up mechanism,comparing traditional four bar linkages with quick return four bar linkages beat up mechanism,the latter can solve the lag problems effectively.A CAD method of designing the quickreturn four bar linkages beat up mechanism is pointed out,and the design mathematics model and the kinematic analysis model are also presented.

针对现有织机打纬机构和开口机构在运动配合上存在的滞后问题，比较了传统的四连杆打纬和具有急回特性的四连杆打纬机构，基于后者能有效地改善配合上的滞后问题，提出了精确设计具有急回特性的四连杆打纬机构的CAD方法，给出了设计的数学模型、机构运动分析的数学模型。

With the method of geometrical figuration,calculates the mathematical module of coil box gap . And base on it,affords the mathematical modules of the top rollers rising speed in the winding period of coil box .

利用几何成形的方法，推导了适用于摆动型热卷箱和非摆动型热卷箱辊缝调整的数学模型，并在此基础上提出了热卷箱卷取过程中上弯曲辊上抬速度控制的数学模型。

In this paper,the mathematics model of the heat exchange in the combustion chamber of the ceramic furnace was established.

文摘：本文建立了陶瓷窑炉火焰空间系统传热数学模型，根据该数学模型模拟了保温对火焰空间系统对物料传热的影响。

A optimum design model of cross-feed and parallel-feed multi-evaporation systems were established on the basis of conventional design to accomplish the optimum energy-saving effect.

为了达到最佳的节能效果，在复杂错流、平流多效蒸发系统常规设计通用数学模型的基础上建立了系统优化设计的数学模型。

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