PL
 |
EN
Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 7

Liczba wyników na stronie
first rewind previous Strona / 1 next fast forward last
Wyniki wyszukiwania
help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 1 next fast forward last
1
Utilization of chaos theory for simulating of some problems in natural and technical sciences
Kratochvil C., Houfek M., Sveda P.
Modelling and Optimization of Physical Systems
|
2012
|
z. 11
27--30
EN
Chaos and chaos theory is a field of study in mathematics, Computer science, electronics, physics and engineering too. Over the last two decades, theoretical design and circuit implementation of various chaos generator have been a focal subject of increasing interest due to their promising applications in various real-world chaos-based technologies and information systems. In our article unidirectional and diffusive coupling of identical n-double scroll cells in a one-dimensional cellular neural network is studied.
2
Detection deterministic chaos in drive systems
Houfek M., Kratochvil C.
Modelling and Optimization of Physical Systems
|
2011
|
z. 10
25--28
EN
The existence of chaotic systems in control systems is a serious problem of engineering practice. Unfortunately, many of identification practices, permitting their identification is very difficult. The article is an example of some simple practices and their contexts, permitting the emergence of chaos to predict.
3
Bifurcation and chaos in electromechanical drive systems with small motors
Kratochvil C., Houfek L., Houfek M., Krejsa J.
Modelling and Optimization of Physical Systems
|
2008
|
z. 7
55--58
EN
The purpose of this article is to provide an elementary introduction to the subject of chaos in the electromechanical drive systems. In this article, we explore chaotic solutions of maps and continuous time systems. These solutions are also bounded like equilibrium, periodic and quasiperiodic solutions.
4
Stress analysis of the ceramic head of hip joint endoprosthesis under different loading
Fuis V., Houfek M., Navrat T., Hlavon P.
Modelling and Optimization of Physical Systems
|
2007
|
z. 6
47--50
EN
Using the system approach, the paper deals with the problems of ceramic head of hip joint endoprosthesis destructions, and with assessing the impact of shape deviations of conical surfaces on the tensile stress under different loading. Concerned are shape deviations from the ideal conical surfaces of the stem and the head of the endoprosthesis, which - when the head is put on the stem and the endoprosthesis loaded - form a contact configuration. The shape deviations may be modelled at the macro-level - this concerns model shape inaccuracies such as deviation from the nominal degree of taper, ovality, and their combination, or, possibly, at the micro-level - when the stochastic distribution of unevenness on the contact areas is respected. The problem of stress in ceramic heads was solved using the algorithm of the finite element method for spatial contact tasks. In the paper are presented and analysed the results of solution of the micro-level shape deviations, obtained from measurements made on the cones of stems and heads under the loading obtained from the experiments [1] and under ISO 7206-5 loading [2].
5
Chaotic behavior description in technical systems
Houfek L., Kratochvil C., Krejsa J., Houfek M., Navrat Τ.
Modelling and Optimization of Physical Systems
|
2007
|
z. 6
77--80
EN
Chaotic behavior of technical systems is lately under great interest of researchers. The paper describes a possibility to analyze system which exhibits chaotic oscillations. For simplicity the model of Duffing oscillator was selected as analyzed case, as the chaotic oscillations occur in this model. Bifurcation diagram and phase plane analysis are used as analysis tool.
6
Bifurcation and chaos in drive systems
Kratochvil C., Houfek L., Houfek M., Krejsa J.
Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska
|
2006
|
z. 31
89-94
EN
The paper is focused on analysis of dynamic properties of controlled drive systems. It describes the possible ways of stability analysis. Paper is also focused on bifurcation of steady states and possible oceurence of chaotic behavior.
7
Analysis resonant and off resonant status nonlinear drive system with nonlinear clutch
Houfek M., Kratochvil C.
Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska
|
2006
|
z. 31
63-66
EN
The dynamic behaviour of drive system is described in the paper. The non-linearity is modeled as clearance in the clutch between the gear and working path. In the paper we present the simulations of dynamic behaviour and description of possible bifurcation of steady states and chaotic behaviour.
first rewind previous Strona / 1 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.