共查询到20条相似文献,搜索用时 125 毫秒
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介绍了液晶显示屏点胶机的气动系统,以及如何应用PLC对该系统进行自动控制,详细介绍了该系统的控制原理及软硬件设计。 相似文献
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基于可编程芯片的步进电机控制系统 总被引:2,自引:0,他引:2
介绍了一种由8751单片机控制步进电机的系统实例。给出了系统硬件设计及软件设计,采用8253及8255A芯片构成的硬件系统,使系统的性能得到优化,在软件设计中给出了主要控制程序,达到对步进电机转速、转向的控制。 相似文献
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介绍一种采用变频调速器技术控制的轧机压下系统。该系统可控制轧机压下速度在工艺要求的范围内连续可调,压下量以数字动态显示,控制准确,操作方便。对系统的组成及工作原理作了较详细的介绍。 相似文献
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介绍了缸体立式双轴双进给数控珩磨机液压系统的工作原理,系统采用了“行程控制”操纵箱控制珩磨头往复运动,换向平稳,精度高,工作可靠。 相似文献
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光动力学系统神经网络系统辨识及自适应控制之性能分析 总被引:2,自引:2,他引:0
分析了光动力学系统神经网络常规BP辨识与混沌加速BP辨识的异同,并对与二者相应的两种光动力学系统神经网络自适应控制技术的性能进行了比较。在此基础上,本文对光动力学系统神经网络自适应控制系统的设计原则进行了讨论。 相似文献
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Chain drive system is widely used in the conditions of high-speed, overload, variable speed and load. Many studies are focused on the meshing theory and wear characteristics of chain drive system, but system design, analysis, and noise characteristics of the chain drive system are weak. System design and noise characteristic are studied for a new type Gemini chain of dual-clutch automatic transmission. Based on the meshing theory of silent chain, the design parameters of the Gemini chain system are calculated and the mathematical models and dynamic analysis models of the Gemini chain system are established. Dynamic characteristics of the Gemini chain system is simulated and the contact force of plate and pin, plate and sprockets, the chain tension forces, the transmission error and the stress of plates and pins are analyzed. According to the simulation results of the Gemini chain system, the noise experiment about system is carried out. The noise values are tested at different speed and load and spectral characteristics are analyzed. The results of simulation and experimental show that the contact forces of plate and pin, plate and sprockets are smaller than the allowable stress values, the chain tension force is less than ultimate tension and transmission error is limited in 1.2%. The noise values can meet the requirements of industrial design, and it is proved that the design and analysis method of the Gemini chain system is scientific and feasible. The design and test system is built from analysis to test of Gemini chain system. This research presented will provide a corresponding theoretical guidance for the design and dynamic characteristics and noise characteristics of chain drive system. 相似文献
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简要介绍了决策支持系统(DSS)的产生和发展,论述了决策支持系统的系统结构和3个技术层次,辨析了DSS与管理信息系统(MIS)的区别和联系,重点研究了基于DSS的模型库和方法库的设计与实现。阐述了模型库系统的3个组成部分和方法库系统的体系结构,并对模型库与方法库之间的关系调用问题进行了详细分析。提出了模型库系统调用方法库中方法的实现方案。本文介绍的内容,对DSS应用具有一定的参考价值。 相似文献
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This paper proposes a new type of bearing system. In this study, a method for design of on elastomeric bearing system and
its mechanical property analysis are carried. Experimental and theoretical studies of the elastomeric bearings with fiber
reinforcement were proved effective new lightweight bearing system. The fibers in the bearings for isolation are assumed to
be flexible in extension, in contrast to the steel plates in the conventional bearing system. Several kinds of bearing systems
in the form of long strips are designed, fabricated and tested. The results suggest that it is possible to produce the economical
and effective fiber-reinforced elastomeric bearing that matches the behavior of a steel-reinforced bearing. Feasibility and
advantages of the proposed bearings are illustrated by the application of the analytic procedure to the structure system.
Results obtained here are reported to be an efficient approach with respect to bearing system and design of bearing against
shock absorbing system when compared with other conventional one. 相似文献
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本文介绍了负荷传感与LUDV液压系统,分析了在单泵多执行机构时负荷传感与LUDV液压系统的工作特点,并在此基础上建立了负荷传感变量泵、负荷传感液压系统与LUDV液压系统的AMESim模型,进行了仿真分析。 相似文献
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S7-300PLC在落地镗床控制系统中的应用 总被引:1,自引:0,他引:1
介绍了W160HC落地镗床的控制要求,提出镗床控制系统的控制策略,进而确定了以S7-300PLC作为核心的镗床控制系统.阐述了其控制的工艺流程,详细介绍了该控制系统的工作原理和组成,结合实例说明其硬件组成和软件设计,并结合本方案实际提出了抗干扰设计.实践证明,该控制系统操作方便,可现场修改数据参数,运行可靠稳定,抗干扰能力强,且经济实用. 相似文献
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The dynamics of an ultrasonic rod system with a piezoelectric vibration exciter are examined. Based on the analysis of the equations of vibrations of the electromechanical system, methods of resonance adjustment are described. The main features of constructions and system operation in resonance conditions are identified. Methods for the selection of optimal system parameters causing maximal amplitude of variations of the working system element are found. 相似文献