graph model中文什么意思

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1. Power bond graph is used to established the bond graph model of the lifting and dropping of hydraulic pile hammer and state space equation in the paper for hydraulic pile hammer is perplexing nonlinear system . in order to attain the graph that pressure , position , velocity , acceleration vary with time in the course of driving pile simulation procedure solving state space equation is designed on the basis of combining four - order runge - kutta method with predicator - corrector method , dynamic simulation of the hydraulic system is studied in matlab 6 . 5 . it is convenient to analyse dynamic characteristics of the hydraulic syste m , beneficial to the design and parameter optimization of the hydraulic system . in the final part of the paper , under detailed analysis of the control characteristics for double - acting hydraulic pile hammer with double cylinders , control system based on the programmable logic controllers founded on technology of modern compute is designed
   由于液压打桩锤液压系统是一个复杂的非线性系统，本文采用功率键合图法建立液压打桩锤上行、下降的键合图模型和状态空间方程，通过四阶龙格?库塔法和预估?校正法相结合编制了仿真程序对状态空间方程求解，在matlab6 . 5中进行液压系统的动态仿真，获得液压打桩锤运动过程中压力、位移、速度、加速度等随时间变化的曲线图。此曲线图方便了对液压系统动态特性分析，为液压系统的设计和参数优化提供了有益的借鉴。最后，在深入分析双缸双作用液压打桩锤控制系统的功能要求后，采用了以现代计算机技术为基础的新型工业控制装置? plc可编程控制器，设计出了双缸双作用液压打桩锤的电器控制系统。
2. The results of simulation show that the hierarchical optimization functions have stronger deceptive so that the algorithms be pendulous among local optimizations . however the evolutionary mechanism based - on graph models being discussed displays its favorable characteristic of intelligent optimizing , such as to overcome deceptive and explore inherent laws on search space . ( 5 ) a method for designing a model framework of situation awareness for ucays based on object - oriented bayesian networks is presented
   仿真结果表明，本文所研究的层次化函数确实具有迷惑性，引导算法在峰值之间飘忽不定，但即使如此，本文提出的基于图形模型的智能优化机制依然表现出具有克服问题欺骗性，可探索问题内在规律和智能寻优的良好特性。
3. 5 ) to solve the uncertain modeling problem about hydraulic buildings , a new modeling method named aggregation modeling based on graph object technique is put forward . as a result , the graph model of solid gravity dam is designed . the graph object of water _ proof dam section taken as an example , the design and implement of self defined graph object is discussed
   5 )根据水工建筑物不定型建模的特点，提出一种基于图形对象技术的聚合建模方法，详细讨论了聚合建模法的基本原理；设计了实体重力坝的图形对象模型，并以挡水坝段图形对象的设计为例，研究了自定义图形对象的设计和实现；基于objectarx的通知? ?反应机制，采用数据库反应器和对象反应器，建立了图形对象的互动操作机制；以挡水坝段断面优化设计为例，研究了图形对象和分析、计算功能的集成方案。
4. ( 3 ) the inhere drawback of traditional algorithms to construct bayesian networks is pointed out . so the local bayesian network metric attribute based - on bayesian dirichlet metric is also researched , and some notions on bayesian networks are presented , such as comparability , independency and symmetry on nodes etc . it is showed that the comparability is an important factor on whether two nodes is linked , and a sufficient condition for nodes with most comparability is obtained . by using this analysis on local bayesian network , the important principia are presented to create graph models
   ( 3 )由于构造贝叶斯网络图的传统算法存在固有缺陷，本文通过探索贝叶斯网络图的内在规律，主要研究基于bd度量的局部贝叶斯网络图的度量属性，提出网络图中节点的相似性、独立性及对称性等新概念，得出相似性是两节点连接与否非常重要的因素，对称节点具有相同的bd度量值，获得具有最强独立性节点的充分条件。
5. Based on the conclusion of organizing into trains and simulating the thoughts of dispatchers in district stations , this paper analyzes the features of time sets of shunting locomotives , constructs the reasonable graph model in the way of making out time sets , and converts it into the problem of graph coloring
   在车流推算的基础上，从应用计算机模拟区段站调度员思维的角度出发，通过分析车列占用调车机车时区集合的特点，使用划分时间片的方法建立合适的调车机车安排的图论模型，将调机运用问题转化为顶点具有加权的图的k -着色问题。