Modelling of dynamical systems in transportation using the modyfit application

• Autorzy: Żółkiewski S.
• Języki publikacji: EN

Abstrakty

EN

Purpose: of this paper is to present a numerical application for analysis and modelling dynamical flexible systems in transportation. This application enables controlling and regulation of rotating systems with the interaction between the working motion and local vibrations of elements. Design/methodology/approach: Numerical calculations are based onto mathematical models derived in other publications. The objectives of making this application were connected with emerging wants of analyzing and modelling rotating systems with taking into consideration relation between main and local motions. Theoretical considerations were made by classical methods and by the Galerkin's method. Findings: In way of increasing the value of angular velocity we can observe creating additional poles in the characteristic of dynamical flexibility and after increasing it is evident that created modes are symmetrically propagated from the original mode. It is evident, instead of modes there are created zeros. Research limitations/implications: Analyzed systems were limited to simple linear type beams and rods. Main motion is plane motion. Future research should consider complex systems and nonlinearity. Practical implications: of the application are possibilities of numerical analysis of beam and rod systems both the free-free ones and fixed ones. Engineers thank to this application can derived the stability zones of analyzed systems and can observe eigenfrequencies and zeros in the way of changing the value of angular velocity. In practice we should implement more adequate models such as those presented in this paper. Originality/value: This paper consist the description of the application called the Modyfit. The Modyfit is an implementation of derived models in a numerical environment. Those models are rotating flexible systems with consideration the transportation effect.

Słowa kluczowe

EN

numerical techniques; computational mechanics; applied mechanics; transportation effect

PL

techniki numeryczne; mechanika komputerowa; mechanika stosowana; efektywność transportu

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2008
• Tom: Vol. 28, nr 1
• Strony: 71--74
• Opis fizyczny: Bibliogr. 19 poz., wykr.

Twórcy

autor

Żółkiewski S.

• Division of Mechatronics and Designing of Technical Systems, Institute of Engineering Processes Automation and Integrated Manufacturing Systems, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland,

Bibliografia

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