Search results for "Servomechanism"

showing 6 items of 6 documents

Analysis of Linear Feedback Position Control in Presence of Presliding Friction

2016

0209 industrial biotechnologyObserver (quantum physics)Computer scienceMechanical Engineering020208 electrical & electronic engineeringEnergy Engineering and Power TechnologyControl engineering02 engineering and technologyServomechanismMotion controlIndustrial and Manufacturing Engineeringlaw.invention020901 industrial engineering & automationControl theorylawAutomotive Engineering0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringPosition controlIEEJ Journal of Industry Applications
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Robust Finite-Time Control of Switched Linear Systems and Application to a Class of Servomechanism Systems

2015

This paper investigates finite-time (FT) stability and stabilization problems for a class of switched linear systems with polytopic uncertainties. Both stable and unstable subsystems are considered to coexist in the system, and a new concept of extended FT stability is proposed as the first attempt. A stability criterion is first established, where the admissible maximum switching number is obtained while ensuring extended FT stability of switched linear systems with time-varying delays under a given maximum ratio between the running time of unstable subsystems and the running time of stable subsystems. Sufficient conditions on the existence of desired memory state-feedback controllers are …

Class (set theory)Stability criterionLinear systemServomechanismStability (probability)Computer Science Applicationslaw.inventionExponential stabilityControl and Systems EngineeringlawControl theoryCircle criterionElectrical and Electronic EngineeringNumerical stabilityMathematicsIEEE/ASME Transactions on Mechatronics
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An Analysis Method of the Electro-Hydraulic Rotational Module

2012

The paper presents a dynamic research of a rotational module of structure to industrial robot MA 221, to establish the functional characteristics that recommend it for use in the structure of the robot. Actual research performed by two methods: BODE and STEP response of the established the construction parameters values of electro-hydraulic servo-system for stable operation.

Engineeringbusiness.industryGeneral EngineeringMechanical engineeringControl engineeringServomechanismElectro hydrauliclaw.inventionIndustrial robotStep responselawRobotbusinessAnalysis methodAdvanced Materials Research
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Researches Regarding the Use of Elctrohydraulic Servosystems at Industrial Robots

2012

This paper presents some researches regarding the use of electro-hydraulic servo-systems in driving the industrial robots, taking into consideration the conditions in which the robots work. The researches conducted upon a particular system, reveal the optimum design elements for obtaining a good behaviour in use, subsequently a good stability in use.

Engineeringbusiness.industryGeneral EngineeringStability (learning theory)Open-loop controllerDesign elements and principlesControl engineeringServomechanismTransfer functionlaw.inventionWork (electrical)lawRobotbusinessAdvanced Materials Research
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Extended friction model of a hydraulic actuated system

2012

The main contribution of this paper is an experimental validation and comparison of three different friction models for an electro-hydraulic servo system. The first is the well-kn own LuGre model which incorporates dynamic friction effects. The second model is based on a relatively recent publication by Yanada in 2008 [6], which incorporates liquid film thickness in the servo valve. The third model is a new contribution presented in this paper, where valve underlap and mass acceleration are combined with the LuGre model. The experimental results show that for hydraulic systems, the film thickness model is an improvement over the LuGre model, while the new model presented in this paper is an…

Engineeringbusiness.industryMechanical engineeringExperimental validationServomechanismMaintenance engineeringElectrohydraulic servo valvelaw.inventionAccelerationControl theorylawDynamical frictionHydraulic machinerybusinessReliability (statistics)2012 Proceedings Annual Reliability and Maintainability Symposium
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Adaptive Energy Management Strategy for Optimal Power Flow Control of Hybrid DC Microgrid

2020

In this work, an adaptive energy management strategy (AEMS) is proposed to achieve the optimal power flow control of off grid connected hybrid DC Microgrid (MG) against time varying source and load dynamics. The hybrid DC MG considered in this paper is operating with a solar PV array and mini hydro power plant (MHPP) as power dispatching sources. The intermittent input dynamics of solar PV system and time varying load power dynamics results in power fluctuations of hybrid DC MG. The MHPP cannot regulate these power fluctuations instantly due its operating dynamics. Therefore, AEMS has deployed a hybrid energy storage system (HESS) comprising battery and supercapacitor storage devices for co…

SupercapacitorBattery (electricity)Computer scienceControl theoryEnergy managementlawPhotovoltaic systemMicrogridServomechanismDC-BUSPower (physics)law.invention2020 5th International Conference on Smart and Sustainable Technologies (SpliTech)
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