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a variable structure
相关语句
  变结构
    A VARIABLE STRUCTURE CONTROL APPROACH TO FLEXIBLE SPACECRAFTS
    柔性空间飞行器的变结构控制
短句来源
    A Variable Structure Design of an Aircraft Servo Loop
    飞行器伺服回路的变结构设计
短句来源
    A Variable Structure Self-tuning Fuzzy Control System and Its Application
    变结构自校正模糊控制系统设计及其应用
短句来源
    A VARIABLE STRUCTURE CONTROL SCHEME FOR REHEATING FURNACE CONTROL
    变结构加热炉计算机控制策略
短句来源
    A VARIABLE STRUCTURE CONTROL SCHEME FOR ROBOT CATESIAN TRACKING
    机器人在任务空间的变结构跟踪控制
短句来源
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  “a variable structure”译为未确定词的双语例句
    A Variable Structure Adaptive Controller for a Locating Servo System
    一种基于结构自适应控制的伺服系统研究
短句来源
    This paper proposes a design of a variable structure adaptive controller (VSAC) for a typical locating servo control system. The design includes the analysis of controller structure, the switching scheme and the control laws for VSAC. Simulation studies for the system performance are included.
    从结构自适应控制(VSAC)原理出发,提出一种高性能伺服控制系统的设计方法,讨论了结构自适应控制的设计规则,并对所设计系统的性能进行了仿真分析。
短句来源
    Some flexible appendages of spacecraft are cantilever plate structures, a variable structure control method is applied to suppress the vibration due to the parameter uncertainties and environmental disturbances, and piezoelectric ceramics is used as actuators, active vibration control for cantilevered rectangle plate is studied in this paper.
    针对航天器上太阳帆板这种悬臂外伸薄板结构的挠性附件,在存在建模参数不确定及外部扰动条件下所引起的振动,本文采用压电致动片作为执行器,对压电智能挠性悬臂板进行了主动振动控制研究。
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  a variable structure
It was found that that the temperature-stress field varies significantly in different subsurface parts of the component and thus creates a variable structure across its depth.
      
The system as a whole is considered to have a variable structure.
      
The general results are used to analyze the stability conditions for the sliding mode in a nonstationary automatic-control system with a variable structure of the third order
      
We derive sufficient conditions for the technical stability of forced states of automatic control systems with a variable structure depending on the derivatives of the control function.
      
Sufficient conditions for technical stability of functional states of controlled systems with a variable structure are derived.
      
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A variable structure system (VSS) differs from a tradition automatic control system in that its structure is purposefully changed, in Jump-wise fasion, during the transient process, depending on the current values of the error signal and its derivatives. Introduced in this paper is the principle of design and analysis of VSS; and several essential advantages, such as high speed, insentiveness to variations in plant parameters and external disturbances, and simplicity of physical realization are pointed...

A variable structure system (VSS) differs from a tradition automatic control system in that its structure is purposefully changed, in Jump-wise fasion, during the transient process, depending on the current values of the error signal and its derivatives. Introduced in this paper is the principle of design and analysis of VSS; and several essential advantages, such as high speed, insentiveness to variations in plant parameters and external disturbances, and simplicity of physical realization are pointed in the paper.

变结构系统与传统的自动控制系统不同之点在于其系统结构可以在瞬变过程中,根据系统当时的偏差及其导数值,以跃变方式,有目的地改变。本文主要介绍变结构系统设计及分析原理,並指出这类系统的许多重大的优点,诸如响应速度快、对控制对象参数变化及外部扰动的不灵敏性、以及物理实现简单等。

The control strategy with variable structure and variable parameter is proposed to cope with the necessity for the governing system of a hydroelectric generating unit to be variable during operation.A variable structure control strategy is developed in connection with the variable plant structure and output variation and a nonlinear compensation approach is proposed and discussed. In addition, for a given plant structure with variable parameters, a time varying...

The control strategy with variable structure and variable parameter is proposed to cope with the necessity for the governing system of a hydroelectric generating unit to be variable during operation.A variable structure control strategy is developed in connection with the variable plant structure and output variation and a nonlinear compensation approach is proposed and discussed. In addition, for a given plant structure with variable parameters, a time varying parameter control approach is developed and its stability and optimality analyzed. Simulation results show the control strategy proposed is useful for controlling hydroelectric generator sets.

本文阐述了水轮机变结构变参数调速控制的基本问题,提出了相应的控制策略,并论证该控制策略的稳定性、最优性。仿真结果表明本文提出的策略控制效果优良。

In this paper,an approach of state estimation and a variable structure control strategy are presented for large-angle single-axis maneuvers of flexible spacecrafts.An exponential observer based on fewer sensors is constructed so that elastic modes of the systems can be available at all instants.Furthermore,dynamic output feedback variable structure control using outputs of the system and states of the observer is studied.Satisfactory simulation results obtained for a practical model are also...

In this paper,an approach of state estimation and a variable structure control strategy are presented for large-angle single-axis maneuvers of flexible spacecrafts.An exponential observer based on fewer sensors is constructed so that elastic modes of the systems can be available at all instants.Furthermore,dynamic output feedback variable structure control using outputs of the system and states of the observer is studied.Satisfactory simulation results obtained for a practical model are also given.

本文研究大型柔性空间结构作单轴大角度操纵时的状态估计及变结构控制方法。所建立指数律的状态观测器,实现了以较少传感器估计系统弹性振动模态的目的。利用状态观测器的状态及系统输出变量反馈方法,设计了大型空间结构的动态输出变结构控制律。针对一个实际模型仿真计算,得到了满意的结果。

 
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