Especially a kind of " intelligent " automatic graphical creation of bond graph method is presented by introducing graph theory and artificial intelligence technique . this method not only improves efficiency of model input and foundation but also breaks an mformation transform path from hydraulic principle figure , bond graph model to the descriptive file 特别是通过图论和人工智能技术的引入,提出了一种“智能型”键合图图形自动生成方法,在显著加快键合图模型输入与建立效率的同时,开辟了液压原理图及键合图模型与描述文件信息转换的通道。
However , an obstacle has been met in the way of the popularization and application of hydraulic simulation software based on power bond graph modeling technique . a remarkable reason is that this kind of software is not fit for ordinary technical people who do n ' t have the basic knowledge of bond graph 然而在基于键合图建模技术液压仿真软件的推广使用方面,却遇到了不小的障碍,一个很重要的原因就是该类软件对使用者的起点要求过高,从而限制了其效能的发挥。
Finally , different control strategies are compared , the disadvantages of existed methods are discussed and improved proposals are presented . chapter three is the emphasis of the thesis . firstly , the fundamental concepts and principle of qos routing including graph model of routing , status information and qos routing strategies are introduced 第三章作为本文的研究重点,首先介绍了qos路由的基本概念和原理,讨论了路由的图模型、状态信息和qos路由策略,研究了路由器的拥塞控制策略。
The means of battery modelling is discussed and the method of equivalent circuit is applicable , and the reference model is adopted because of its higher precision and more reasonable after comparing the several kinds of commonly used equivalent circuits , moreover the bond graph model of the equivalent circuit of reference model is established 对蓄电池建模方式进行探讨并采用等效电路法建模,在分析比较几种常用等效电路的基础上,采用精度高、更加合理的参考模型( referencemodel ) ,并建立了参考模型等效电路的键合图模型。
Technicans are trying to find out a more reasonable point to describe work state of pump for some reasonless factors of this model , the key technology of developing ads is on adopting a means by using theoretical calculation and curve fitting to build a reasonable pump state graph model , the model " s rationality based relations between pump efficacy and sinking depth is illustrated by restrict programme argumenting 抽油增效辅助决策系统的开发,其关键技术在于采用理论计算及曲线拟合的办法,建立合理的泵况图模型,通过严格的方案论证阐明基于泵效-沉没度关系的泵况图模型的合理性。通过实际数据,检验模型的有效性。