So , in the paper , proceeding from the automatic control of extrusion velocity and based on the basic control strategy presented firstly , the relation among parameters of the process such as pressure , temperature and displacement is investigated , and the model of the process has been built using system identification method . then , a corresponding controller is designed together with its control algorithm , and the control system is proved viable and effective by the results of simulation on the control system . in the end , the problem of the realization of the control system is discussed by using modularization method . the hardware of the control system is designed and a sofeware with a perfect manmachine interface is developed , too 因此,本文从挤压速度的控制出发,首先探讨并确立了本系统的基本控制策略;然后根据此控制策略的必然要求,对该工艺挤压过程所涉及到的挤压力、温度、挤压轴位移等参数间的关系进行了深入研究,利用系统辨识方法建立了挤压过程关键阶段的数学模型;在此基础上完成了相应的控制器设计,给出了控制算法,并对所设计的控制系统进行了仿真。
This thesis analyzes all kinds of throttle components , points out the advantage of adapting eev , and analyzes the start - up and the discharge characteristics of eev , and dynamic response of refrigeration systems when the opening degree of eev is changed , etc . eev is placed into a tumoff position while the unit starts up , and after being kept for a period of time it is placed into a bigger position , after some more time it is put into a basic control 本文对比分析了冷藏箱制冷系统各种节流元件的特点,指出电子膨胀阀应用的优势,同时分析了电子膨胀阀的启动特性、流量特性以及系统在阀开度变化时的动态响应。电子膨胀阀在启动时应先使电子膨胀阀处于关闭位置,延时一段时间后,再将阀开至一个较大的位置,再延时一段时间后转移到基本的控制。
According to the shear - type floor model of frame structure , a basic control equation is constructed to analyze the nonlinear seismic responses of structure equipped with edd - bracing system . subsequently the dynamical finite element analysis are carried on to obtain the seismic response of a twelve - floor r . c frame with the three edd - bracing system under minute earthquake and disastrous earthquake , and the conclusions provide useful references for practical earthquake - resistant design 基于框架结构剪切型层模型,建立了耗能阻尼器对建筑结构非线性地震反应的基本控制方程,由此进行了某十二层钢筋混凝土框架结构设置三种耗能阻尼器在多遇和罕遇地震下的动力有限元分析,为进行实际结构设置耗能阻尼器的抗震设计提供了有益的参考。
By using for reference , in theory , simply introduced the basic working principle of the secondary adjusting hydrostatic transmission system , the basic controlling rules of secondary regulation , and the most radical controlling rules such as rotational speed , torque control and power control etc . by analyzing theory and studying , check - uping the motion parts of secondary element and constructing the control system ; and setting up the topmost rotational speed control system ; designing and completing the software of date processing and system control 通过参考相关的资料,从理论上介绍了二次调节静液传动系统原理,二次调节系统的基本控制规律,简要介绍了最基本控制规律如:转速控制、扭矩控制和恒功率控制等。在理论分析和研究的同时,对二次元件的运动部件的检测和控制系统进行构建;组建了二次元件最高转速控制系统;设计并完成了数据采集和系统控制软件;同时,对二次元件控制系统和制动特性采用pid控制进行计算机仿真研究。
On the basis of analyzing the present situation and existing problems of the gas supply system in launch area , the thesis describes the general technical principles and parameters in the system designing and analyses the basic control functions the system should realize . and the thesis also shows the statistics of reference points in air 、 nitrogen and helium systems and related circuit diagram and pipe diagram 本文在分析了发射场配气系统的现状和存在的问题的基础上,提出了系统设计中的主要总体技术要求、参数,分析了系统应实现的主要控制功能,然后分别对空气、氮气和氦气系统的控制点进行了统计,并给出了有关的电路图和气路图。
On the running theory of electrical power ergograph and the basic control theory basis , this paper expatiate on the mathematic model and modulating speed of ergograph , and expounds the principle and ways of design of hardware and software for measure and control system , and describes the hardware and software with some frames and interfaces , and importantly recommends the way of designing software 本文根据电力测功机的工作原理和控制理论基础,主要阐述了测功机的数学模型和调速原理以及整个测控系统的硬件和软件设计的原理和方法,并辅助框图和界面对软硬件进行了详细描述,重点介绍了系统软件的设计。
By analyzing the contacting force error target track between the welding robot and workpiece , the basic control cells , characteristic model , multi - model control and multi - target decision - making rules of human - simulated intelligent parameter - adjusting level control of force sensing are established based on human - simulated intelligent running level control of force sensing in remote welding 摘要通过分析遥控焊接过程机器人与工件接触力误差目标轨迹,在遥控焊接力觉仿人智能运动控制级控制基础上,建立了遥控焊接力觉仿人智能参数校正级控制基元集合、特征模型、多模态控制和多目标推理决策规则。