نتایج جستجو برای: actuator and sensor failure

تعداد نتایج: 16919551  

2014
H. Alwi L. Chen C. Edwards

This paper considers the problem of reconstructing, simultaneously occurring actuator and sensor faults in a nonlinear system. The theory which will be developed in this paper is based on a sliding mode observer formulation, designed around an LPV model approximation of the nonlinear system. It extends previous work which has independently considered actuator and sensor faults reconstruction. H...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده شیمی 1392

چکیده در بخش اول این پروژه دو روش میکرواستخخرا به نامهای میکرواسخخرا امولسیونی با کمک اموا فراصتتتو 1 و میکرواستتتخخرا مای – مای با کمک هوا 2 ، به عنوان دو روش میکرواستتتخخرا بدون حلال پخشکننده 3 ، برای اسخخرا برخی هیتدروکربتنهای آروماتیتک حلقوی 4 از نمونتههای آبتی بهکار گرفخه و پارامخرهای موثری همچون نوع حلال اسختتتتخرا کننده، حجم حلال اسخخرا کننده، میزان نمک، زمان تابش اموا فراصتو ، تددا...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده ادبیات و علوم انسانی 1393

from its emergence till present time marxist principles has undergone great changes since their promulgation by marx. many theorists and thinkers set at rectifying marxist tenets and introducing those of their own while others advocated its main concepts and attempted at improving them. among marxist philosophers who had an intensive study of marxs ideology, is louis althusser whose reflections...

Journal: :CoRR 2016
Keith Foster Jan Olaf Blech Guillaume Prévost

class PhysicalEvent[+I, S](component: PhysicalObject[I], timepoint: TimePoint[Long], state: PhysicalState[S]) extends INSTATE[PhysicalObject[I], Long, PhysicalState[S]] (component, timepoint, state) with BeSpaceDGestalt.core.Event[S] abstract class DeviceEvent[+I, S](device: Device[I], timepoint: TimePoint[Long], state: DeviceState[S]) extends PhysicalEvent[I, S](device, timepoint, state)class ...

2011
U. Vaidya R. Rajaram S. Dasgupta

We study the problem of actuator and sensor placement in a linear advection partial differential equation (PDE). The problem is motivated by its application to actuator and sensor placement in building systems for the control and detection of a scalar quantity such as temperature and contaminants. We propose a gramian based approach to the problem of actuator and sensor placement. The special s...

2011
Claudio Silvestro Jinkyu Yang Sophia Sangiorgio Sean Borkowski Luigi De Nardo Edward Ebramzadeh Chiara Daraio

We propose a new granular crystal sensor and actuator suite based on highly nonlinear solitary waves to offer a compact, inexpensive, and reliable diagnostic instrument for biomedical applications. A granular crystal sensor/actuator composed of tightly packed elastic particles is assembled to generate and retain self-reinforcing, nondispersive diagnostic solitary waves. Via direct contact, this...

2004
H. Böse H. Ermert G. Monkman M. Baumann S. Reichling O. T. Bruhns H. Freimuth

A novel system for the generation and representation of haptic information in virtual reality is described. With this system the stiffness distribution of mechanically inhomogeneous objects can be detected and made perceivable for users at distant locations. The sensor part is based on ultrasonic elastography and the actuator part utilizes the ability of electrorheological fluids to change thei...

2014
Aitor Hernandez João Faria José Araújo Pangun Park Henrik Sandberg Karl Henrik Johansson

Recent research efforts are considering the problem of performing control of dynamical systems over wireless sensor and actuator networks. However, existing results lack an experimental evaluation in real platforms. In this demonstration an inverted pendulum system is controlled over an IEEE 802.15.4 wireless sensor and actuator network. This platform can evaluate several sensor networks and co...

Journal: :amirkabir international journal of modeling, identification, simulation & control 2015
sh. asgari a. yazdizadeh m. g. kazemi

in this paper, in order to increase the efficiency, to reduce the cost and to prevent the failures of wind turbines, which lead to an extensive break down, a robust fault diagnosis system is proposed for v47/660kw wind turbine operated in manjil wind farm, gilan province, iran. according to the acquired data from iran wind turbine industry, common faults of the wind turbine such as sensor fault...

2003
Domenico Campolo Ranjana Sahai Ronald S. Fearing

This paper presents the fabrication and the testing of piezoelectric unimorph actuators with embedded piezoelectric sensors which are meant to be used for the actuation of the Micromechanical Flying Insect (MFI). First the fabrication process of a piezoelectric bending actuator comprising a standard unimorph and a rigid extension is described together with the advantages of adding such an exten...

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