The design methods, simulation procedures and measurement results are described in detail in this paper 论文详细地论述了双工器的分析原理、设计步骤以及测量调试过程。
By analyzing the mechanism of the long-jump, the mathematical model is established and the simulation procedure is designed 摘要对跳远运动,分析运动机理,建立数学模型,设计仿真程序,进行仿真。
In the end, the simulation procedures such as building up the test environment and test process for the two modules are introduced 最后,讲述了两个功能模块的实现所进行的测试,包括测试环境的搭建、测试的过程。
At the end of this paper, an integrated fms simulation platform is presented . this platform integrates the whole sequence of modeling and simulation procedure 国内外很多学者提出了很多调度理论用于fms调度,但是迄今为止还没有通用而高效的调度方法。
On the basis of experimental results, monte carlo numerical simulation procedure based on matlab was complied, which realize the reliability design and analysis for cfrp wound pressure vessels 在试验基础上,编制了基于matlab的montecarlo数值模拟软件,实现了cfrp缠绕压力容器可靠性分析与设计。
Then, several fluid-thermal-structure interaction problems are studied by the cbsfst . this work is still in its infancy, a general numerical simulations procedure and code for fluid-thermal-structure analysis needs to be developed 并应用这些程序对典型的流动与传热、流动与弹性变形以及流动、传热和弹性变形耦合问题的算例进行了分析。
The paper analyzes, with a great details, the current technical issues of high speed photograph camera ( hspc ) and studies characters of the high-speed movement parts of the hspc and its dynamic balance and dynamics under high-speed movement . in this paper, a 70mm hspc has been used as a research object . by using of computer technology, modem design theory and virtual manufacturing technology, the object has been studied in a virtual environment through the design, assembling, dynamic analysis and movement simulation procedures 本文较全面地分析了国内外高速摄影机的技术现状及发展动态,研究了高速摄影机高速运动的特性和高速运动状态下的动平衡问题和动力学问题,并以70mm高速摄影机为具体研究对象,运用计算机技术、现代设计理论与方法和虚拟制造技术,在虚拟环境中进行了产品设计、产品装配、动力学分析及仿真实验。
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。
For better veracity of simulating model, model is used lookup-table module to calculate the thermodynamic character of refrigerant, and datas of experience and test is combined in the compressor module, also the coefficient of heat transfer changing by running parameter is decided by computational procedure . in addition, choosing congruence step size solves the divergence of simulation procedure 为了使仿真模型具有相当的准确性,模型中采用查表模块进行制冷剂热力性质计算,压缩机模块中将实验数据与经验计算数据相结合,通过程序运算确定冷凝器和蒸发器传热系数与运行参数之间的关系,并成功解决了仿真程序运行发散的问题。
Several critical technologic problems of simulation system of phased array radar are discussed in this paper, firstly, transmission and processing procedure of signal in the phased array radar system are analyzed and the simulation systemic modular structure of phased array radar is founded . and the collectively simulation procedure are discussed . among all parts of whole phased array radar system, the phased array antenna is the most critical one, because the veracity and accuracy of the radar system simulation is directly influenced by it 本文针对相控阵雷达仿真系统中的几个关键技术问题进行了探讨,研究了相控阵雷达的结构、组成及信号在相控阵雷达系统中的传输、处理过程,在不影响仿真精度的前提下,进行了适当的简化和替代等效,构建了仿真系统的模块化结构,并分析研究了相控阵雷达系统仿真的总体流程。