نتایج جستجو برای: numerical control system

تعداد نتایج: 3488021  

Journal: :iranian journal of numerical analysis and optimization 0
elahe safaie mohammadhadi farahi

in this paper we present a new method for solving fractional optimal control problems with delays in state and control. this method is based upon bernstein polynomial basis and using feedback control. the main advantage of using feedback or closed-loop controls is that they can monitor their effect on the system and modify the output accordingly. in this work, we use bernstein polynomials to tr...

Journal: :the modares journal of electrical engineering 2005
mehdi siahi hossein soghrati

this paper introduces an indirect adaptive fuzzy sliding mode controller as a power system stabilizer for damping local and inter-area modes of oscillations of multi-machine power systems. this controller is designed based on the combination of sliding mode controller and the fuzzy logic systems. the fuzzy systems are used to approximate the unknown functions of power system model. generator sp...

Journal: :Journal of Dynamic Systems, Measurement, and Control 1971

Journal: :international journal of industrial engineering and productional research- 0
mohammad saber fallah nezhad department of industrial engineering, yazd university, p.o.box 89195-741,pejoohesh street, safa-ieh, yazd, iran

in this research, the decision on belief (dob) approach was employed to analyze and classify the states of uni-variate quality control systems. the concept of dob and its application in decision making problems were introduced, and then a methodology for modeling a statistical quality control problem by dob approach was discussed. for this iterative approach, the belief for a system being out-o...

2013
Yan Gu Yiqiang Wang Xiuhua Yuan Xiaoqin Zhou

In order to realize the characteristics of the numerical control system including expandability and reconfigurability and to construct open CNC system platform with higher reliability, this paper established a component assembly model for numerical control system based on reliability. The numerical control system is divided into functional components which are relatively independent in logic. T...

Journal: :international journal of industrial mathematics 2015
s. salahshour f. amini‎‎ m. ayatollahi‎ e. vaseghi

fuzzy control systems have had various applications in a wide range of science and engineering in recent years. since an unstable control system is typically useless and potentially dangerous, stability is the most important requirement for any control system (including fuzzy control system). conceptually, there are two types of stability for control systems: lyapunov stability (a special case ...

2009
Xi Liu Yanping Lin Horacio J. Marquez Henry Van Roessel Farbod Fahimi Panos J. Antsaklis

This thesis is concerned with the analysis of the control design to the nonlinear networked control systems (NCSs). Ignoring the network connection and cascading actuators, the plant and sensors together, a sampled-data system is obtained. The stabilization problem of nonlinear sampled-data systems is considered under the low measurement rate constraint. Dual-rate control schemes based on the e...

A. Saghafi, M. Bagheri Hosseinabadi N. Khomarian

Electric wheelchair is one of the equipment to be used by the incapacitated and disable people. Constant exposure to vibration affects human comfort and health. Reducing the vibrations transmitted to the human body is important in the electric wheelchair design and becomes a healthcare industry demand. This paper deals with the study on vibration control of the electric wheelchair suspension sy...

In this paper, an Adaptive Neuro Fuzzy Inference System (ANFIS) based control is proposed for the tracking of a Micro-Electro Mechanical Systems (MEMS) gyroscope sensor. The ANFIS is used to train parameters of the controller for tracking a desired trajectory. Numerical simulations for a MEMS gyroscope are looked into to check the effectiveness of the ANFIS control scheme. It proves that the sy...

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