Active vibration control using (31 résultats)

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Taschenbuch. Etat : Neu. Druck auf Anfrage Neuware - Printed after ordering - Research Paper (postgraduate) from the year 2015 in the subject Engineering - Computer Engineering, Flinders University (School of Computer Science, Engineering and Mathematics, Faculty of Science and Engineering), course: Master of engineering by research, language: English, abstract: In this paper active vibration control (AVC) methodology is presented by the author using self-sensing magnetic transducers for a flexible plate structure. H_ Optimized positive position feedback (HOPPF) controller is tested and verified for multi-modes multi-input-multi-output (MIMO) vibration suppression through simulation and experiment implement. Genetic algorithm (GA) searching is applied to obtain the optimal parameters of the controllers according to the minimization criterion solution to the H_ norm of the whole closed-loop system. …

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Taschenbuch. Etat : Neu. Druck auf Anfrage Neuware - Printed after ordering - The basic layout of the damping device consists of two eccentric control masses. These masses rotate with a constant angular velocity about two parallel axes and generate, under some further operational conditions, a harmonic control force. Control algorithms ensuring the continuous motion of the rotors and the dampen effect of the device are derived and studied for free and stochastically forced vibrations. Based on numerical simulations and experiments, it is shown that the device effectively damps vibrations of single degree and two degree of freedom oscillators in a power-efficient manner.…

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Taschenbuch. Etat : Neu. Active vibration control using the centrifugal forces of eccentrically rotating masses | Richard Bäumer | Taschenbuch | Englisch | epubli | EAN 9783745078213 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu. …

Taschenbuch. Etat : Neu. Vibration Control of FRP Shaft Using Electromagnetic Actuator | Active Vibration Control | Mohammad Amin Rashidifar (u. a.) | Taschenbuch | 80 S. | Englisch | 2015 | LAP LAMBERT Academic Publishing | EAN 9783659668081 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu. …

Taschenbuch. Etat : Neu. Six Degree of Freedom Active Vibration Isolator using Voice Coil Motor | Design and Control | Rahul Banik | Taschenbuch | 120 S. | Englisch | 2013 | LAP LAMBERT Academic Publishing | EAN 9783838380131 | Verantwortliche Person für die EU: OmniScriptum GmbH & Co. KG, Bahnhofstr. 28, 66111 Saarbrücken, info[at]akademikerverlag[dot]de | Anbieter: preigu. …

Taschenbuch. Etat : Neu. Druck auf Anfrage Neuware - Printed after ordering - Master's Thesis from the year 2014 in the subject Engineering - General, Basics, Flinders University (School of Computer Science, Engineering and Mathematics), language: English, abstract: In this thesis, experimental, analytical and numerical analysis are used for distributed parameter plate structure modeling, an infinite-dimensional and a very high-order plate mathematical transfer function model is derived based on modal analysis and numerical analysis results. A feed-through truncated plate model which minimizing the effect of truncated modes on spatial low-frequency dynamics of the system by adding a spatial zero frequency term to the truncated model is provided and numerical software MATLAB is used to compare the feed-through truncated plate model with traditional balanced reduction plate model which is used to decrease the dimensions and orders of the infinite-dimensional and very high-order plate model.Active vibration control strategy is presented for a flexible plate structure with bonded three self-sensing magnetic transducers which guarantee unconditional stability of the closed-loop system similar as collocated control system. Both multi-mode SISO and MIMO control laws based upon positive position feedback is developed for plate structure vibration suppression. The proposed multi-mode PPF controllers can be tuned to a chosen number of modes and increase the damping of the plate structure so as to minimize the chosen number of resonant responses.Stability conditions for multi-mode SISO and MIMO PPF controllers are derived to allow for a feed-through term in the model of the plate structure which is needed to ensure little perturbation in the in-bandwidth zeros of the model. A minimization criterion based on the H norm of the closed-loop system is solved by a genetic algorithm to derive optimal parameters of the controllers. Numerical simulation and experimental implementation are performed to verify the effectiveness of multi-mode SISO and MIMO PPF controllers' vibration suppression for the feed-through truncated plate structure. …

Taschenbuch. Etat : Neu. Vibration Control of Structure using Tuned Mass Friction Dampers | Applications of Passive & Semi-Active Tuned Mass Friction Dampers | Alka Y. Pisal (u. a.) | Taschenbuch | 244 S. | Englisch | 2016 | LAP LAMBERT Academic Publishing | EAN 9783659816932 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.…

Taschenbuch. Etat : Neu. Active vibration control of structures | Experimental verification using jet pulses | Grigoris K. Karaiskos | Taschenbuch | 248 S. | Englisch | 2012 | LAP LAMBERT Academic Publishing | EAN 9783848417902 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.…

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Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Research Paper (postgraduate) from the year 2015 in the subject Engineering - Computer Engineering, Flinders University (School of Computer Science, Engineering and Mathematics, Faculty of Science and Engineering), course: Master of engineering by research, language: English, abstract: In this paper active vibration control (AVC) methodology is presented by the author using self-sensing magnetic transducers for a flexible plate structure. H_ Optimized positive position feedback (HOPPF) controller is tested and verified for multi-modes multi-input-multi-output (MIMO) vibration suppression through simulation and experiment implement. Genetic algorithm (GA) searching is applied to obtain the optimal parameters of the controllers according to the minimization criterion solution to the H_ norm of the whole closed-loop system. 24 pp. Englisch.…

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The basic layout of the damping device consists of two eccentric control masses. These masses rotate with a constant angular velocity about two parallel axes and generate, under some further operational conditions, a harmonic control force. Control algorithms ensuring the continuous motion of the rotors and the dampen effect of the device are derived and studied for free and stochastically forced vibrations. Based on numerical simulations and experiments, it is shown that the device effectively damps vibrations of single degree and two degree of freedom oscillators in a power-efficient manner. 208 pp. Englisch.…

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Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Master's Thesis from the year 2014 in the subject Engineering - General, Basics, Flinders University (School of Computer Science, Engineering and Mathematics), language: English, abstract: In this thesis, experimental, analytical and numerical analysis are used for distributed parameter plate structure modeling, an infinite-dimensional and a very high-order plate mathematical transfer function model is derived based on modal analysis and numerical analysis results. A feed-through truncated plate model which minimizing the effect of truncated modes on spatial low-frequency dynamics of the system by adding a spatial zero frequency term to the truncated model is provided and numerical software MATLAB is used to compare the feed-through truncated plate model with traditional balanced reduction plate model which is used to decrease the dimensions and orders of the infinite-dimensional and very high-order plate model.Active vibration control strategy is presented for a flexible plate structure with bonded three self-sensing magnetic transducers which guarantee unconditional stability of the closed-loop system similar as collocated control system. Both multi-mode SISO and MIMO control laws based upon positive position feedback is developed for plate structure vibration suppression. The proposed multi-mode PPF controllers can be tuned to a chosen number of modes and increase the damping of the plate structure so as to minimize the chosen number of resonant responses.Stability conditions for multi-mode SISO and MIMO PPF controllers are derived to allow for a feed-through term in the model of the plate structure which is needed to ensure little perturbation in the in-bandwidth zeros of the model. A minimization criterion based on the H norm of the closed-loop system is solved by a genetic algorithm to derive optimal parameters of the controllers. Numerical simulation and experimental implementation are performed to verify the effectiveness of multi-mode SISO and MIMO PPF controllers' vibration suppression for the feed-through truncated plate structure. 176 pp. Englisch. …

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - This book introduces a new method for active vibration control of FRP rotating shaft. In the direction of composite rotor shaft system few works are also available. The use of composite material is increasing day by day in the various industries because of FRP composites are lighter, more durable and have infinite design flexibility. So details study of laminated composite shaft is required. Due to its light weight and flexibility this types of shafts do not sustains large vibration in the operational condition. Active vibration control of rotating composite shaft is also very important in the area of research. Therefore the objectives of the present works are laid down as follows: Finite element modeling for vibration analysis for rotating composite shaft, with disk and bearing. Effect of ply angle on the responses of the composite shaft. Modeling of electromagnetic actuator. Study of active vibration control of rotating composite shaft using electromagnetic actuators and PD control scheme.…

Taschenbuch. Etat : Neu. Active Vibration Control Of Plate Structure Using Electromagnetic Transducer Based On H_¿ Optimized Positive Position Feedback | Zhonghui Wu | Taschenbuch | 24 S. | Englisch | 2016 | GRIN Verlag | EAN 9783668229525 | Verantwortliche Person für die EU: GRIN Publishing GmbH, Waltherstr. 23, 80337 München, info[at]grin[dot]com | Anbieter: preigu Print on Demand. …

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Precision measuring instruments with nanometer resolution are almost always susceptible to disturbance transmitted mainly from ground vibration as well as other sources such as acoustic noise and direct mechanical vibrations. Even though the instrument itself is designed to handle such disturbances, researchers in this field are still in need of a smart way to properly eliminate this problem so that they can make their measurement results more trustworthy. In this book the proposed solution is to use a hybrid active-passive vibration isolation system between the instrument and ground to eliminate vibration transmitted from ground as well as direct disturbances transmitted from the moving parts of the instrument to the support plate of the payload in all six degrees of freedom. The reason behind this hybrid solution is to take advantage of both the passive as well as active stage. This research thus proposes to realize a six axis hybrid active passive system which can work as a bench top micro vibration isolator for precision measuring instruments such as Scanning Probe Microscopes as well as for some linear motor stages of small dimension.…

Taschenbuch. Etat : Neu. Multi-mode Active Vibration Control Using H¿ Optimization MIMO Positive Position Feedback Based Genetic Algorithm | Zhonghui Wu | Taschenbuch | 176 S. | Englisch | 2017 | GRIN Verlag | EAN 9783668270718 | Verantwortliche Person für die EU: GRIN Publishing GmbH, Waltherstr. 23, 80337 München, info[at]grin[dot]com | Anbieter: preigu Print on Demand. …

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Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - The structural control techniques are widely recognized as an effective means to reduce the response of inadequately damped systems. Its applications ranges from small rotating machines to large civil engineering structures subjected to earthquake or wind loading. Buildings and bridges that have been constructed using structural control shows that it is a valuable and promising engineering tool. The present research work mainly consists of two parts. In the first part of the study, harmonic and seismic response of the single-degree-of-freedom (SDOF) structure to which a passive and semi-active tuned mass friction damper (TMFD) is attached is investigated. Second part of the study focuses on the investigation of effectiveness of multiple tuned mass friction dampers (MTMFD) over a TMFD; here response of the multi-story structure and the bridge with TMFD is compared with response of the same structures with MTMFD. This study is intended to provide an insight to the feasibility of potential application of these devices in vibration control of structures and bridge.…