A Study on the Identification and Dynamic Performance of the High Frequency Electro-Hydraulic Servovalve 高频电液伺服阀的辨识及其动态特性的研究
In order to improve the performance of a jet-pipe servovalve, a novel direct drive jet-pipe servovalve driven by a giant magnetostrictive actuator is proposed in this paper. 为提高射流伺服阀的性能,提出了一种超磁致伸缩执行器驱动的直动式射流伺服阀。
A new servovalve using a pressure control pilot state was introduced, which uses two spools instead of single spool in power magnifying stage. 介绍了一种新型的压力先导控制伺服阀,该阀的功率放大级采用双阀芯结构代替传统单阀芯结构。
Study on Controlling Theories and Methods of Switching Solenoids Proportional Servovalve 开关型电磁铁控制比例伺服阀的方法及实验研究
Design and Research of Jet-pipe Pressure Control Servovalve 射流管电液压力伺服阀的设计与研究
Modelling and Analysis of a Pneumatic Force Control System with an Asymmetric Servovalve 具有非对称气动伺服阀的气动压力控制系统建模与分析
Theory and Methods of Modifying Electro-hydraulic Position Servo System with Correction on Flow Rate at Servovalve 伺服阀流量动态校正改善电液位置系统性能的理论和方法
Study on the System of Measurement and Control for Double-input Servovalve 双输入伺服阀测控系统的研究
Simulation and test results indicated that the designed piezoelectric direct drive servovalve satisfied the active control of the hydraulic fluid pulsations. 仿真与试验结果表明,所设计的压电陶瓷直接驱动伺服阀满足液压流体脉动主动控制要求。
Dynamic Characteristics of Electro-hydraulic Position System Controlled by Jet-pan Servovalve 射流盘伺服阀控电液位置系统的动态特性
Design and Study to Reliability of Double Flapper-Nozzle Force-Feedback Electrohydraulic Servovalve 双喷嘴挡板式力反馈电液伺服阀可靠性设计与研究
The Study and Test of Circular Jet-Type Electrohydraulic Servovalve 环喷式电液伺服阀的研究与试验
In chap 4, the 2D digital electrohydraulic flow-pressure control servovalve is applied to PIMM. 第四章将电液流量一压力复合控制阀应用于塑料注射成型机中。
This new type of servovalve is a very important element in developing high frequency vibration test stand and high accuracy electrohydraulic control systems. 这种新型伺服阀是发展高频振动实验台和高精度电液伺服系统的重要元件。
Developing on High Frequency and High Flow Electro-Hydraulic Servovalve 高频大流量电液伺服阀研制
An optimum matching method which minimizes the consumed power of a hydraulic servo system by the optimization of the hydraulic dynamical mechanism consisting of actuator, electro-hydraulic servovalve, hydraulic power supply and accumulator, is introduced. 介绍了在液压伺服系统中,通过对作动器、电液伺服阀、液压源和蓄能器所组成的液压动力机构的优化设计,而使功耗降至最小的最佳匹配方法。
In this paper following problems are discussed: the servovalves with mechanical feedback, influence of different parts upon the behaviour of servovalve, method of compensation, results of experiments etc. 本文对下述问题:电反馈电液伺服阀和机械反馈电液伺服阀的各个环节对阀性能的影响、补偿方法及其试验结果等也进行了讨论。
In order to improve the dynamic performances of electro-hydraulic servovalve, some practical schemes were discussed to reach the optimization of valve parameters on the basis of precisely determining the dynamic mathematical model of electro-hydraulic servovalve by the method of identification. 在应用系统辨识法对电液伺服阀的动态数学模型进行精确确定的基础上,本文用最优设计的方法,对决定电液伺服阀动态性能的6个基本参数施行了多种组合的参数优化。
Design and Application of New Type Hydraulic Servovalve 一种新型机液伺服阀的设计与应用
Research on the Piezoelectric Direct Drive Servovalve 一种压电陶瓷直接驱动伺服阀研究
Study of electrohydraulic servovalve control system for hydraulic bending roll system 液压弯辊电液伺服系统研制
A synthetic control scheme, a pressure control servovalve and a hydraulic cylinder with two rods are adopted in this system. 系统采用了模拟前馈补偿和综合数字控制方案,选用压力控制电液伺服阀和双出杆的加载作动筒,使多余力得到了有效的控制,并具有较好的跟踪性能。
Some defects were found in design of hydraulic system with potential safety problem, Such as the design of the hydraulic control loop comprised of servovalve, 2/ 2 cartridge valve and logic element. 本钢炼钢厂2LF炉投产后,发现其液压系统设计上存在一定缺陷,主要是由于伺服比例阀、2/2插装阀及梭阀组成的液压控制回路设计上存在问题,有很大的安全隐患。
A New Type of Pneumatic Servovalve and the Application to the Position Control System 一种新型的气动伺服阀及其在位置控制系统中的应用
A new servovalve is introduced, its forerunner uses a simple mechanical control method. 介绍了一种新型的机液控制伺服阀,该阀的先导级采用了简单的机械控制方式。
On the study of the development of a new industrial pressure servovalve and its digital simulation 工业用压力伺服阀的研究及数字仿真
This paper deals with computer aided test on the dynamic characteristics and static characteristics of electro hydraulic servovalve, and uses an example to explain the construction of test system, the collocation of hardware and the programing of software. 对电液伺服阀动态特性及静态特性的计算机辅助测试问题进行了研究,并结合实例介绍了测试系统的构成、CAT部分的硬件配置及软件编制。
By theoretical and experimental analysis, relations between the utmost frequency bandwidth of the system and the thrust force of the cylinder& rated flow of the servovalve are established, which are applied to guide the design of servo systems in the wind tunnel. 通过理论及对试验结果的分析,总结出伺服系统极限频宽与油缸推力和伺服阀流量的关系,并应用于对风洞电液伺服系统的设计。
This dissertation adopts an unknown import compensate observer to diagnosis servovalve. 本文还采用了一种基于未知输入补偿观测器的方法来对刹车系统中的另一个关键机件-电液伺服阀进行了故障诊断研究。
Electro-hydraulic servo control system is widely applied in the navigating control field for astronavigation, navigation and aviation, and as the key part of electro-hydraulic servo control system, the performance of electro-hydraulic servovalve takes an important role on the servo control system. 电液伺服控制系统广泛应用在航天、航空和航海等航行器的航行控制领域中,电液伺服阀作为电液伺服控制系统的核心元件,其性能直接影响整个伺服控制系统的品质。