The content of this article is the proposal of process of the safety analysis for complex dynamic systemsThe safety analysis is carried out in process of the proposal of control system for safety-critical processesIn ...
详细信息
The content of this article is the proposal of process of the safety analysis for complex dynamic systemsThe safety analysis is carried out in process of the proposal of control system for safety-critical processesIn preliminary hazard analysis is done the identifying all possible risks by PHI methodThe PHA method is used to analyze these risksThe method of safety analysis depends on various safety-critical states of system which are system are controlled by modelsWe propose to use the method SQMD for modeling these statesThis method combines qualitative and quantitative methods of modeling states and takes advantage of both methodsThe model of the proposal is shown in the diagramThe article includes detailed description of the tasks for each step of analysis.
The paper presents simulation study on control of temperature field of steel billet during continuous casting. The cooling of steel billet is controlled with secondary cooling zone - a set of water jets divided into i...
详细信息
ISBN:
(纸本)9781479909261
The paper presents simulation study on control of temperature field of steel billet during continuous casting. The cooling of steel billet is controlled with secondary cooling zone - a set of water jets divided into independent subzones. The temperature field evolution in time and space is described by non-linear partial differential equation. The solution of this equation is obtained numerically, using specialized finite element software ProCAST. Lumped-input and distributed-parameter-output system (LDS) is introduced, with the inputs being cooling water flow rates and the temperature field being the system's distributed output. Control synthesis in the system's feedback is solved in space and time direction. To represent the temperature field during setpoint changes a co-simulation interface was added to the DPS Blockset (Third-Party software product of The MathWorks). The interface block enables you to couple a finite element simulation in ProCAST and control scheme in Simulink. This feature brings you the full power of Simulink to extend the capabilities of finite element simulation.
Systems of linear differential equations with constant coefficients occur in the area of operations research very frequently. These arise, for example, as mathematical models of dynamical systems. One can solve linear...
详细信息
ISBN:
(纸本)9781479901517
Systems of linear differential equations with constant coefficients occur in the area of operations research very frequently. These arise, for example, as mathematical models of dynamical systems. One can solve linear systems using the method of variation of parameters or using Laplace transform. Sometimes, for the given system, both the methods can be used, while in other cases we can solve it only by one of the methods. In particular, if the system is an initial value problem with discontinuous forcing terms we (frequently) have to solve it using Laplace transform. On the other hand, if there are boundary conditions of special types, it is not possible to use Laplace transform. In this contribution we show how to solve it in both cases and we also show that the student of automation have to know both the ways of solution.
Recent developments in the area of industrial programing software expand the potential of the automation programs considerably. In addition to IEC 61131-3 languages, programming languages like C and C++ are getting av...
详细信息
Recent developments in the area of industrial programing software expand the potential of the automation programs considerably. In addition to IEC 61131-3 languages, programming languages like C and C++ are getting available for industrial controllers, which opens new possibilities of reusing existing programs for real time processing in these controllers. Paper deals with swing-up and online model predictive control of mechatronic device - reaction wheel inverted pendulum. Swing-up control uses convenient shape of exponential function over pendulum position for determination of required energy to be delivered to the system. For stabilization of pendulum in the upright position a predictive controller based on optimal control law with perturbation was used. An important part of the solution is PLC implementation of qpOASES package for numerical solution of quadratic optimization problem. Application is implemented and tested using industrial PLC connected to a laboratory pendulum.
Influence of on-line support on quality of teaching results(gained knowledge and skills), as well as on attitude of engineering students to the Mathematics' courses have been researched at the University of Techno...
详细信息
Influence of on-line support on quality of teaching results(gained knowledge and skills), as well as on attitude of engineering students to the Mathematics' courses have been researched at the University of Technology, Faculty of Material Science and TechnologyPart of gained results, concerning the relation between students′ creativity and theirs performance in cognitive didactic test, as well as between creativity and students′ attitude to active learning methods are described in this paper.
This article is devoted to the navigation tasks for space robots, which operates in the neighborhood of unstable libration point of the Earth-Sun and in the near-Earth space. Movement space robot is addressed under ci...
详细信息
Similarity and dissimilarity (distance) between objects is an important aspect that must be considered when clustering data. When clustering categorical data, for instance, these distance (similarity or dissimilarity)...
详细信息
This article is devoted to the navigation tasks for space robots, which operates in the neighborhood of unstable libration point of the Earth-Sun and in the near-Earth space. Movement space robot is addressed under ci...
详细信息
This article is devoted to the navigation tasks for space robots, which operates in the neighborhood of unstable libration point of the Earth-Sun and in the near-Earth space. Movement space robot is addressed under circular restricted three-body problem. The possibility of maneuvering in the near-Earth space with the return to neighborhood collinear libration points is shown.
A filtering technique of neutron flux during the nuclear reactor restarting is presented in this paper. The nuclear reactor model is described by equation of inverse kinetics. The ionization chambers are used for neut...
详细信息
The article is devoted to the study of drying process of list material under the action of high-intensity ultrasonic vibrations. The advantages of ultrasonic drying and possibility of its practical realization are des...
详细信息
The article is devoted to the study of drying process of list material under the action of high-intensity ultrasonic vibrations. The advantages of ultrasonic drying and possibility of its practical realization are described in the article. The ultrasonic drier applied in practice of ultrasonic drying of list materials was proposed and developed.
暂无评论