Then introduce some corresponding research work on water modeling briefly , expatiate the generating method of water wave in chapter 3 , viz . simulate water wave with physical modeling method . we use the integrated kinetic equations , take wave as countless compact water columns , simplify the top surface of these columns , and get the numerical result 论文完成的主要工作包括:在第二章介绍了相关的研究背景之后,第三章首先简要介绍了目前对水波模型生成所做的研究,在此基础上,作者采用武汉理工大学博士学位论文完整的动力学模型方程组,将水波当做无数紧密排列的水柱,对水柱的顶平面高度进行简化、求解,从而得到波形模型。
In order to manufacture this type of worm gear drive precisely and cheaply , we should explore a whole new dis - dual generating method . as a part of the project " the modeling and simulation of planar double - enveloping toroid worm gear drive ' s intelligent manufacturing method " , this dissertation focuses on the 3d modeling of planar double - enveloping toroid worm gear in computer . the author of this dissertation has completed lots of studies and researches in this field and has found some new methods for the 3d modeling of worm gear drive 本文作为“平面二次包络环面蜗杆副智能加工的建模与仿真”研究项目的一个组成部分,主要以在计算机中对平面二包蜗杆副进行三维建模和数字化造型为目标,在严格推导共轭齿面的基础上对平面二包蜗杆副齿面的组成进行了tca分析,并运用适当的数学方法对蜗杆副型面进行重构,获得了适合于计算机表达的平面二包蜗杆副三维数字化模型。
Combining the generating method of molecular reflective thermal velocities according to diffuse reflection model , an algorithm named as inverse temperature sampling ( its ) is developed , which enables to evaluate the molecular reflective characteristic temperature from the molecular incident energy and the boundary heat flux 在此基础上,通过结合壁面漫反射模型下分子反射速度的抽样方法,发展了一种从边界热流求得与壁面碰撞分子的平均反射特征温度的逆温度抽样算法。
In the way of grid generation , comparison about various generating methods is made . in the end software gambit is employed to do such work from the point of practicability , and the interface program to translate the grid file is also given . it relieves the people from the similar heavy work of grid generation 在网格划分方面,对各种网格生成方法进行了比较分析,最终本文从实用的角度出发,采用gambit来进行此项工作,并编制了相应的接口转换程序,使同类工作从繁重的网格划分工作中解脱出来。
Then the relevant basic theory and key technology for system are detailed . finally the analysis of implement ideas and calculations are stressed for network searching and display . the prospect of generating methods of network topological graph is made further for large and complex network 本文首先概述了系统的开发背景,然后详细地介绍了相关的基础理论和系统实现的关键技术,最后重点地分析了网络拓扑搜索和显示的实现思想和算法,并对针对于大型复杂网络网络拓扑图生成算法进行了展望。
Taking landuse - dat files as data sources , this paper discusses the features , data structure , and generating methods of topological relationships of between in landuse database generalization , and puts emphasis on the methods for preserving consistency of topological relationships of patches in the process of landuse database generalization 摘要以landuse - dat文件为例,论述了土地利用地图综合中图斑多边形拓扑关系的特点、数据结构定义及生成方法,阐述了土地数据库综合过程中图斑拓扑关系一致性的维护方法。
Chapter 3 . ( the generator model of 1 / f noise ) in this chapter the physical generator model , rl line model and filter model , is firstly introduced , then the dsp model , including ma model , fbw model . at last a new 1 / f noise generating method , the presentation of 1 / f noise based on orthonomal wavelet bases , is given 第三章( 1 f信号的生成模型)本章给出了1 f信号的物理生成模型, rc网络方法、滤波方法,和数字信号处理模型, ma模型、分数维布朗运动模型等,并给出了一种新的1 f信号生成方法。