Modelling agents by means of place/transition Petri nets (P/T PN) are introduced here and three possibilities of the agents cooperation and negotiation are introduced and analyzed. While PN places model states of atom...
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A scheme of microscopic Brownian motion is applied to macroscopic transportation systems by group of robots. Continuum mechanical picture of group robots so far developed by the author is extended to systems with ener...
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ISBN:
(纸本)9781467321242
A scheme of microscopic Brownian motion is applied to macroscopic transportation systems by group of robots. Continuum mechanical picture of group robots so far developed by the author is extended to systems with energy dissipation. Taking Hamiltonian with specified exponential function of time allows us to deal with friction appearing in motion of robots by canonical equation. Rubbing of robots against floor where they moves around is representd as proportional to velocity of each robot. In applying movement of group robots to transportation systems, we give methods how to explicitly calculate force between robots and the object that is to be transported. We make practical use of the formula of the force in simulation studies. three combinations of the proportionality constants for velocity of robots and that of objects are set to simulate how to move the object in the transportation systems. Physically adequate results that the small/large frictional coefficient values lead to good/bad transportation characteristics are brought. Comparison of our results based on continuum picture of robots withthose by Newtonian mechanics for robots and objects leads to good agreement.
In this paper, two different control-oriented modeling strategies are presented for the dynamics of a combustion engine-based power train. the first modeling approach corresponds to a so-called inverse model relating ...
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ISBN:
(纸本)9781467321242
In this paper, two different control-oriented modeling strategies are presented for the dynamics of a combustion engine-based power train. the first modeling approach corresponds to a so-called inverse model relating a given drive cycle to the mass flow of fuel and to the total fuel consumption. the alternative modeling approach represents a direct system description in which the fuel mass flow serves as the system input, while the resulting vehicle acceleration and velocity are the corresponding output variables. these models are employed for the optimization of operating strategies with respect to the fuel consumption and for the design of observer-based feedback controllers which are validated by numerical simulations. these controllers are designed in such a way as to allow for a real-time implementation of a velocity control approach. the presented system models as well as the corresponding optimization and control strategies are the basis for an experimental implementation on a test rig that is currently being built up at the Chair of Mechatronics at the University of Rostock.
this work concerns the systems analysis of a class of distributed parameter systems, and more precisely the notions of weak and exact domination. We introduce and we study these concepts for controlled and observed sy...
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Forecasting financial success of a particular movie has intrigued many scholars and industry leaders as a worthy but challenging problem. In this study, we explore the use of machine learning methods to forecast the f...
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the (C-13) isotope separation column is a complex process with many inputs and outputs. Proper literature is scarce (or inexistent) due to the fact that only a few plants exist in the world and due to data protection ...
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ISBN:
(纸本)9781467307024
the (C-13) isotope separation column is a complex process with many inputs and outputs. Proper literature is scarce (or inexistent) due to the fact that only a few plants exist in the world and due to data protection issues. In order to design an advanced control strategy, implemented on a process computer in LabVIEW (TM), in the present work was developed a mathematical model, described by a transfer function matrix using identification methods. the validation of the model is accomplished by the comparison of plant data and simulation results using Matlab (TM) and LabVIEW (TM).
this paper presents an easily implementable method for determining the set of PID controllers that stabilize an LTI system with or without a time delay while satisfying certain robustness requirements. the adopted app...
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ISBN:
(纸本)9781467321242
this paper presents an easily implementable method for determining the set of PID controllers that stabilize an LTI system with or without a time delay while satisfying certain robustness requirements. the adopted approach, which does not require approximating the time delay or solving complex non-algebraic equations, draws directly on the graphic approach suggested in [1], [2], [3] for PI controllers and first-order-plus-dead-time processes. In particular, it is shown that, on suitable cross sections of the parameter space, the boundary of the regions where a given H-infinity margin is ensured is the envelope of families of ellipses whose centres lie on the stability boundary. the loci of constant crossover frequencies, strictly related to the achievable passbands, are also displayed. the technique is applied to some benchmark examples withthe aid of dedicated software.
Recently, study on a control of flexible manipulators have been receiving increasing attension in the domain of master-slave system. the master-slave system is a control system to operate a manipulator for objects in ...
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ISBN:
(纸本)9788993215045
Recently, study on a control of flexible manipulators have been receiving increasing attension in the domain of master-slave system. the master-slave system is a control system to operate a manipulator for objects in a remote environment which is at a distance from the presence of a human operator. In order to consider the influence by the elasticity of flexible manipulators, it is necessary to study on the control of vibration of flexible master-slave manipulators and the passivity. thus in this paper, we discuss about a new modified bilateral controller considering the elasticity by using intervention impedance in basis on the passivity and a control performance of the system. this paper is organized in the following way : First, we introduce mechanical models of manipulators. Second, we propose bilateral controls by using intervention impedance based on passivity. third, we transeform each models represented by time domain into models represented by s-plain, find the scattering matrix, and prove the passivity of system. Fourth, we propose a new modified controller controller for the purpose of realizaion. Lastly, we show some results of experiments in order to verify the usefulness of proposed controller.
the paper proposes and develops a new model based on probabilistic Petri Nets suited to reflect the progress of the athletic performance of one individual and of a group of individuals. the training techniques, their ...
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ISBN:
(纸本)9781467307024
the paper proposes and develops a new model based on probabilistic Petri Nets suited to reflect the progress of the athletic performance of one individual and of a group of individuals. the training techniques, their appropriate succession and grouping, the immediate results obtained after applying specific training methods are integrated and reflected by the developed model. the model was elaborated based on the training activities and on the athletic performance evaluation of five national level track and field athletes for a complete training cycle. the maximum isometric force value obtained for 5 seconds long voluntary contractions of the leg extensor muscles of each subject was the main parameter used to evaluate the individual progress after a training sub-cycle. the data resulted after the evaluation sessions were used to estimate the training path followed by each athlete. the training path planning was exemplified in the case of one athlete for a complete training cycle. the model was validated using measured data obtained during evaluation sessions carried on in similar conditions in the case of the same group.
When the vessels are sailing for a long time, because of the changes in environmental and other factors, which will cause gyro drift, scale factor and installation errors, gyro online calibration is required. this pap...
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