The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Primo Zingaretti - One of the best experts on this subject based on the ideXlab platform.
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Mechatronic System to help visually impaired users during walking and running
IEEE Transactions on Intelligent Transportation Systems, 2018Co-Authors: Adriano Mancini, Emanuele Frontoni, Primo ZingarettiAbstract:Ambient assisted living and intelligent transportation Systems are becoming strongly coupled. There is the necessity of improving the quality of life by developing inclusive mobility solutions for impaired people. In this paper, we focus on a monocular vision-based System to assist people during walking, jogging, and running in outdoor environments. The impaired user is guided along a path represented by a lane or line on a dedicated runway. We developed a set of image processing algorithms to extract lines/lanes to follow. The embedded System is based on a small camera and a board that is responsible for processing the images and communicating with the developed haptic device. The haptic device is formed by a set of two gloves equipped with vibration motors that drive the user to the right direction. The vibration sequences are generated according to a robotic-like controller, considering the user as a two wheel steering robot, where the rotational and translation velocity can be controlled. The results obtained show that the overall System is able to detect the right path and to provide the right stimuli to the user, by means of the gloves, up to a speed over 10 km/h.
Nikolaos V. Tsekos - One of the best experts on this subject based on the ideXlab platform.
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The Interconnection of MRI Scanner and MR-Compatible Robotic Device: Synergistic Graphical User Interface to Form a Mechatronic System
IEEE-ASME Transactions on Mechatronics, 2008Co-Authors: Alpay Ozcan, Nikolaos V. TsekosAbstract:MRI scanner and magnetic resonance (MR)-compatible robotic devices are Mechatronic Systems. Without an interconnecting component, these two devices cannot be operated synergetically for medical interventions. In this paper, the design and properties of a graphical user interface (GUI) that accomplishes the task is presented. The GUI interconnects the two devices to obtain a larger Mechatronic System by providing command and control of the robotic device based on the visual information obtained from the MRI scanner. Ideally, the GUI should also control imaging parameters of the MRI scanner. Its main goal is to facilitate image-guided interventions by acting as the synergistic component between the physician, the robotic device, the scanner, and the patient.
Clarence W. De Silva - One of the best experts on this subject based on the ideXlab platform.
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niching genetic scheme with bond graphs for topology and parameter optimization of a Mechatronic System
IEEE-ASME Transactions on Mechatronics, 2014Co-Authors: Saeed Behbahani, Clarence W. De SilvaAbstract:This paper presents a novel multimodal evolutionary optimization algorithm for the complex problem of concurrent and integrated design of a Mechatronic System, with the objective of realizing the best topology and the best parameters from a multicriteria viewpoint and with different preferences. The associated search space can be large and complex due to the existence of different classes of configurations, possible topologies, and the parameter values of the elements. The proposed algorithm efficiently explores the search space to find several elite configurations for different preferences, with more detailed competition by incorporating the domain knowledge of experts and considering some criteria that are not included in the course of regular evolutionary optimization. The developed approach consists of a two-loop optimization. For each topology, a genetic algorithm-based optimization is performed to find an elite representative of the topology. The elites will compete with each other to become the best design. A strategy of restricted competition selection is employed in the competition of topologies, with the aim of finding alternative elites from which the one that best satisfies the customer preference may be chosen. The designer may incorporate a higher level competition between elites in order to obtain the global optimum.
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System-Based and Concurrent Design of a Smart Mechatronic System Using the Concept of Mechatronic Design Quotient (MDQ)
IEEE ASME Transactions on Mechatronics, 2008Co-Authors: Saeed Behbahani, Clarence W. De SilvaAbstract:A Mechatronic System needs an integrated, concurrent, and System-based design approach due to the existence of interactions among its subSystems, and also the existence of interactions between the criteria involved in a realistic evaluation of a Mechatronic product. This paper presents a Systematic methodology for a detailed Mechatronic design based on a Mechatronic design quotient (MDQ). MDQ is a multicriteria index, reflecting a System-based evaluation of a Mechatronic design, which is calculated using soft computing techniques, thereby accommodating interactions between criteria and human experience. A niching genetic algorithm is utilized to explore the huge search space raised due to concurrent and integrated design approach, with the aim to find the elite representatives of different possible configurations. To demonstrate the method, it is applied to an industrial fish cutting machine called the Iron Butcher-an electromechanical System that falls into the class of mixed or multidomain Systems.
Andrzej Buchacz - One of the best experts on this subject based on the ideXlab platform.
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dynamical charactersitics of the discrete continuous Mechatronic System obtained by means of exact and approximate methods
Applied Mechanics and Materials, 2014Co-Authors: Andrzej BuchaczAbstract:The research of subSystems establishes the foundation to complex Systems analysis with cascade structure. Analysing the diagrams of characteristics of confirmed System it has been determined that in case of approximate method the resonance frequencies cover with those which have been determined with exact method. However the values of the characteristic in other areas are different. The main aim of the paper is to study the dynamic characteristic of the discrete continuous Mechatronic System determined by exact approximate, that means Galerkin's method for torsionally vibrating complex mechanical subSystems. The System composed from many subSystems having the same length and variable cross section, loaded by the focused moment was analysed. The main subject of deliberation was to determine the flexibility of the mechanic System with constant cross section using the exact and approximate Galerkin's method. Next the method comparison and the correction of approximate method where made. As far as the Mechatronic System flexibility determinations concerned the Galerkin's method has been chosen. The analysis of subSystems of Mechatronic and mechanic complex Systems is however the introduction to the synthesis of torsionally vibrating Mechatronic Systems with assumed frequency spectrum.
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development of mathematical model of a Mechatronic System
Solid State Phenomena, 2010Co-Authors: Andrzej Buchacz, Marek PlaczekAbstract:This paper is a continuation of earlier publications of the authors related to the analysis of Mechatronic Systems including piezoelectric materials used as sensors or actuators for stabilization and damping of mechanical vibration. It was demonstrated that only very accurate mathematical model of the System with the piezoelectric transducers and external electric circuit attached to a mechanical System like a beam or a shaft by a glue layer allows the engineers to design the System with required dynamic parameters. Geometrical and material parameters of all the components have to be taken into account because neglecting the influence of one of them results in erroneous analysis results [1-4]. The paper presents the improved mathematical model of the considered Mechatronic System. The assumption of pure shear of the connection layer is rejected during modeling and deformation of the layer is taken into consideration. The purpose of the reported enhancement of the mathematical model of the considered Mechatronic System is to improve accuracy of computational results.
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selection of parameters of external electric circuit for control of dynamic flexibility of a Mechatronic System
Solid State Phenomena, 2010Co-Authors: Andrzej Buchacz, Marek PlaczekAbstract:This paper deals with the analysis of Mechatronic Systems including piezoelectric materials used as sensors or actuators for stabilization and damping of mechanical vibration. This work presents the analysis of the flexural vibrating one-dimensional Mechatronic System – a cantilever beam and the piezoelectric transducer bonded on the beam surface by means of a glue layer. The external RC circuit is connected to the transducer clamps. Dynamic equations of motion of the considered Mechatronic System were written down using the discrete-continuous mathematical model, taking into consideration the influence of the connection layer and the external electric circuit. Dynamic flexibility of the Mechatronic System was assigned on the basis of the approximate Galerkin method.
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calculation of flexibility of vibrating beam as the subSystem of Mechatronic System by means the exact and approximate methods
Pamm, 2009Co-Authors: Andrzej BuchaczAbstract:The main aim of this paper is to investigate the transients of characteristics of vibrating beams obtained by the exact and approximate methods and to answer to the question – if the method can be used to nominate the characteristics of Mechatronic Systems. The approach was to nominate the relevance or irrelevance between the characteristics obtained by considered methods – especially concerning the relevance of the natural frequencies-poles of characteristics of mechanical part of Mechatronic System. The main subject of the research is the continuous vibrating beam. Findings of this approach is fact, that approximate solutions fulfill all conditions for vibrating beams and some conditions only, particularly for vibrating beams as the subSystems of Mechatronic Systems. Practical implications of this paper is the main point is the analysis and the examination of flexibly vibrating discrete-continuous Mechatronic Systems which characteristics can be nominated with approximate methods only. (© 2009 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)
V. I. Konyashin - One of the best experts on this subject based on the ideXlab platform.
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correction of rolling mill Mechatronic System to limit dynamic loads
Russian Engineering Research, 2018Co-Authors: S. I. Malafeev, A A Malafeeva, V. I. KonyashinAbstract:Regulation in the Mechatronic System of a DUO-300 rolling mill is investigated. The dynamics of an electric drive with a predictive PI controller in the current loop is analyzed. Methods are proposed for damping of self-oscillation and decrease in dynamic loads within the Mechatronic System.
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Mechatronic simulation of the 300 rolling mill
Russian Engineering Research, 2014Co-Authors: S. I. Malafeev, V. I. KonyashinAbstract:Attempts are made to improve metal rolling on the basis of models of the Mechatronic System in the 300 rolling mill. The relations between the electric drive, the rolling stands, and the deformed metal are taken into account here.
