Browsing by Subject "identyfikacja"

Now showing 1 - 20 of 45

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Analiza jakości systemu regulacji ciśnienia gazu w stacji redukcyjnej
(Data obrony: 2019-01-28) Janczarski, Konrad
Wydział Elektrotechniki, Automatyki, Informatyki i Inżynierii Biomedycznej
Access status: Restricted ,
Analiza zastosowania narzędzi automatycznej identyfikacji w gospodarce magazynowej na wybranym przykładzie
(Data obrony: 2020-10-20) Bilut, Aleksandra
Wydział Zarządzania
Access status: Restricted ,
Automatyczna identyfikacja obiektów dynamicznych z wykorzystaniem programowalnych przyrządów pomiarowych
(Data obrony: 2018-01-22) Wilczek, Szymon
Wydział Elektrotechniki, Automatyki, Informatyki i Inżynierii Biomedycznej
Access status: Open Access ,
Control and identification algorithms for acoustic noise reduction
(Wydawnictwa AGH, 2007) Figwer, Jarosław; Czyż, Krzysztof; Główka, Teresa; Kasprzyk, Jerzy; Michalczyk, Małgorzata I.; Pawełczyk, Marek
The aim of the paper is to present main aspects of a research project on active noise reduction being performed at the Computer Control System Group, which is a part of the Institute of Automatic Control, Silesian University of Technology, Gliwice, Poland. In particular, the following problems are dealt with: higher order spectra in off-line and on-line identification of electro-acoustic plants for active noise reduction systems; creating distributed local zones of quiet in a reverberant enclosure using two structures: based on spatially distributed transducers controlled by a central unit or implemented as decentralized systems; development and analysis of optimal and adaptive feedback systems for generating zones of quiet at desired locations; enhancement of active noise reduction efficiency using nonuniform signal sampling and oversampling techniques; design and implementation of a portable multi-channel active noise control platform.
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Design and analysis of the axial and the radial active magnetic bearing
(Data obrony: 2017-09-15) Sikora, Bartłomiej
Wydział Elektrotechniki, Automatyki, Informatyki i Inżynierii Biomedycznej
Access status: Restricted ,
Eksperymentalna identyfikacja parametrów transmitancji mechanicznego układu oscylacyjnego
(Data obrony: 2019-01-22) Graba, Iwona
Wydział Elektrotechniki, Automatyki, Informatyki i Inżynierii Biomedycznej
Access status: Open Access ,
Identification of flexible structure model for piezoelectric vibration control
(Wydawnictwa AGH, 2005) Gosiewski, Zdzisław
Modern structures are light and compliance. Therefore, they are strongly influenced by external and internal perturbations. To reduce the structure vibrations the active vibration controls systems are designed. When active control of flexible structures is sought, three items must be individually and simultaneously considered. 1) The creation of reduced-order models. 2) Placement of sensors and actuators. 3) Countermeasures for spillover. All these problems are particularly important in the case of active system with parameter-distributed piezoelectric sensors and actuators. The glued piezoelectrics and their amplifiers change the structure parameters and should be taken into account in the model of the open-loop system. In the paper we consider an identification method which leads directly to the reduced-order model of the open-loop system. Analytical and experimental investigations were carried out for flexible beam with fixed one end and with opposite free end. Piezoelectric strips were glued on both sides of the beam: one works as a sensor and second one as an actuator. It means that we have designed single input single output system. It is appeared that used amplifier works as a low-pass filter which cuts-off the high-frequency dynamic effects. The frequency response function (FRF) was recorded and model of open-loop system was adjusted to experimental results. Taking into account the theory of reduced-order model of flexible structures we can state that resonances are connected with poles while anti-resonances with zeros of system transfer function. The resonance and anti-resonance frequencies were used directly in the model while damping coefficients were calculated by using of the least-square sum method. In the next step some control laws were used to damp the vibration of the beam. The proper control law was chosen with help of computer simulations. The active control loop rapidly accelerates the vanishing of the impulse-excited transient vibrations of the structure. Experimental results confirmed the analytical considerations.
Access status: Open Access ,
Identification of physical parameters of rigid rotor in magnetic bearings
(Wydawnictwa AGH, 2006) Gosiewski, Zdzisław; Górmiński, Marek
Identification of physical parameters of unstable system, as magnetic bearing is, is an important problem, for example in the design of its diagnostic system. Most of the identification methods are applied for stable systems, without requiring feedback terms for identification purpose. However, for identification of marginally stable or unstable systems, feedback control is required to ensure the overall system stability. In many cases, a system, although stable, may be operated in the closed-loop, and it is impossible to remove the existing feedback controller for security or for production reasons. In diagnostic systems, there are usually observed trends in changes of physical parameters (e.g., mass, resistance, inductance, and so on). The physical realization is one of the possible system realizations. For any dynamic system, although Markov system parameters are unique, the realized state-space model is not unique. If one needs to compare the identified state-space model with the analytical model, both models have to be in the same coordinates. An identification method of the state-space model resulting from the physics laws is presented in the paper. The method is a modification of the OKID method and it works exactly in the case when the sum of the input number and output number eguals to the dimension of the state vector. There is no always possibility to measure the state vector, so for identification, it is estimated by deadbeat state observer. On the base of the reconstructed model it is possible to extract ARX model of observer/controller. This model is used to obtain the physical state-space model of the open-loop system for voltage controlled magnetic bearings. As a plant we consider a rigid rotor supported by magnetic bearings. The described method in easy way let us to identify physical parameters (e.g., mass, resistance, inductance, and so on) of the plant, which could be used in diagnostic system.
Access status: Open Access ,
Identification of the servo motor used in the walking robot
(Wydawnictwa AGH, 2010) Piątek, Marcin
The paper describes the servo motor modelling and identification procedures. The hexapod - six-legged walking robot is presented. The Hitec servo motors are the robot actuators. The development environment where all experiments are performed is described in detail. The precise analysis of the servo motor static behaviour is done and the results are shown in numerical and graphical forms. An effort to identify the servo motor as a linear object has been taken. Finally, a non-linear model structure is assumed. The identification results are presented.
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Identyfikacja grup w sieciach społecznych
(Data obrony: 2019-09-19) Rodak, Karol
Wydział Inżynierii Metali i Informatyki Przemysłowej
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Identyfikacja i ocena ryzyka na przykładzie firmy naftowej
(Data obrony: 2020-12-11) Maciaszek, Aleksandra
Wydział Wiertnictwa, Nafty i Gazu
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Identyfikacja obiektu automatyki za pomocą odpowiedzi skokowej z wykorzystaniem sieci neuronowych
(Data obrony: 2021-03-18) Zarzycki, Patryk
Wydział Inżynierii Mechanicznej i Robotyki
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Identyfikacja oraz analiza produktów korozji wybranych metali za pomocą metod spektroskopowych
(Data obrony: 2019-01-29) Zając, Bartłomiej
Wydział Odlewnictwa
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Identyfikacja oraz ocena aspektów środowiskowych w przemyśle produkcji płytek ceramicznych w gminie Końskie
(Data obrony: 2013-07-31) Stanek, Klaudia
Wydział Geologii, Geofizyki i Ochrony Środowiska
Identification of environmental aspects is carried out to determine the significant aspects, which can have a significant impact on the environment. Ceramic plants are one of the dominant industries in the community of Końskie. Identify aspects of the analyzed plants mainly concerns the emission of pollutants into the environment, caused by processes applied. By using appropriate criteria and rating scale has been separated seven aspects of the major, including one with a positive character. In order to reduce the impact of selected aspects of the natural environment should be taken appropriate action, including implementation of the ISO 14001 standards, or the use of Best Available Techniques for the ceramics industry
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Identyfikacja osób na podstawie analizy tęczówki
(Data obrony: 2009-12-16) Mokrzycki, Jacek
Wydział Elektrotechniki, Automatyki, Informatyki i Elektroniki
Access status: Restricted ,
Identyfikacja parametrów magnetometru w nano-satelitach
(Data obrony: 2020-11-23) Markowski, Dominik
Wydział Elektrotechniki, Automatyki, Informatyki i Inżynierii Biomedycznej
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Identyfikacja parametrów modeli materiałów z wykorzystaniem technik uczenia maszynowego
(Data obrony: 2019-10-24) Tsitsaris, Krzysztof
Wydział Inżynierii Metali i Informatyki Przemysłowej
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Identyfikacja parametrów silnika indukcyjnego klatkowego
(Data obrony: 2019-01-30) Moczyński, Michał
Wydział Elektrotechniki, Automatyki, Informatyki i Inżynierii Biomedycznej
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Identyfikacja parametrów silnika indukcyjnego.
(Data obrony: 2019-09-30) Mamulski, Marcin
Wydział Elektrotechniki, Automatyki, Informatyki i Inżynierii Biomedycznej
Access status: Open Access ,
Identyfikacja pęknięcia belek na podstawie pomiarów amplitud drgań wymuszonych
(Wydawnictwa AGH, 2005) Majkut, Leszek
This paper deals with detection of the location and size of a transverse crack in beam like structure. An input quantity for identification a forced vibration amplitudes was chosen. For this quantity the inverse beam model was created. Identification algorithm based on this model was proposed.