Analysis of mechanical systems with transversal vibrations in transportation

• Autorzy: Buchacz A. , Żółkiewski S.
• Języki publikacji: PL

Abstrakty

EN

Purpose: of this article are modelling and dynamic analysis of mechanical systems during the rotational movement. Nowadays technical problems are tied with high speeds of mechanisms, high precision of work, using lower density materials, and many other high demands for elements of work. Objective of this paper was the analysis with giving into consideration the interaction between working motion and local vibrations. The model is loaded by transverse forces and transformed to the global reference frame. Design/methodology/approach: derived equations of motion were made by the Lagrange equations method with generalized coordinates and generalized velocities assumed as orthogonal projections of individual coordinates and velocities of each beam to axes of the global reference frame. Findings: systems of equations of motion of transversally vibrating systems in two-dimensional motion will be put to use to derivation of the dynamical flexibility of these systems and complex systems. Those equations are the beginning of the analysis of complex systems. They can also be used to derivation of the substitute dynamical flexibility of n-linked systems. Research limitations/implications: mechanical systems vibrating transversally in terms of two-dimensional motion were considered in the thesis. The consecutive problem of dynamical analysis is modelling of systems in spatial motion and also the analysis of systems loaded by longitudinal forces. Practical implications: mathematical effects of this article can be put to use into many mechanisms and machines running in rotational transportation. For example applications are: high speed turbines, wind power plants, rotors, manipulators and in aerodynamics issues, etc. Of course results should be adopted and modified to appropriate system. Originality/value: High demands for parameters of work of mechanisms and machines are the postulation for new research and new ways of modelling and analyzing those type systems. The example way of solution such systems is presented in this thesis. The transportation effect for models vibrating transversally was defined.

Słowa kluczowe

EN

applied mechanics; transversally vibrating systems; manipulator; transportation effect

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2008
• Tom: Vol. 31, nr 2
• Strony: 434--441
• Opis fizyczny: Bibliogr. 19 poz., wykr.

Twórcy

autor

Buchacz A.

autor

Żółkiewski S.

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

Bibliografia

• [1] J. Awrejcewicz, W. A. Krysko, Vibrations of continuous systems, WNT, Warsaw 2000 (in Polish).
• [2] A. Buchacz, S. Źółkiewski, Transverse vibrations of the elastic multielement manipulator in terms of plane motion and taking into consideration the transportation effect, Proceedings of the 8th Conference on Dynamical Systems-Theory and Applications 2, 2005, 641-648.
• [3] A. Buchacz, S. Źółkiewski, Longitudinal three-dimensional vibrations of the round rod with taking into consideration the transportation effect, Proceedings of the International Conference of Machine-Building and Technosphere of the XXI Century 5, Sevastopol, 2005, 17-20.
• [4] A. Buchacz, S. Źółkiewski, The dynamical flexibility of the transversally vibrating beam in transportation, Folia Scientiarum Universitatis Technicae Resoviensis no. 222, Mechanics b. 65 Problems of dynamics of construction. Rzeszów-Bystre, 2005, 29-36.
• [5] A. Buchacz, S. Źółkiewski, Dynamic analysis of the mechanical systems vibrating transversally in transportation, Journal of Achievements in Materials and Manufacturing Engineering 20 (2007) 331-334.
• [6] A. Dymarek, The sensitivity as a Criterion of Synthesis ofDiscrete Vibrating Fixed Mechanical Systems, Journal of Materials Processing Technology 157-158 (2004) 138-143.
• [7] A. Dymarek, T. Dzitkowski, Modelling and synthesis of discrete-continuous subsystems of machines with Damping, Journal of Materials Processing Technology 164-165 (2005) 1317-1326.
• [8] T. Dzitkowski, Computer aided synthesis of discretecontinuous subsystems of machines with the assumed frequency spectrum represented by graphs, Journal of Materials Processing Technology 157-158 (2004) 1317-1326.
• [9] A. Sękala, J. Świder, Hybrid graphs in modelling and analysis of discrete-continuous mechanical systems, Journal of Materials Processing Technology 164-165 (2005) 1436-1443.
• [10] R. Solecki, J. Szymkiewicz, Rod and superficial systems. Dynamical calculations, Arcades, Building Engineering, Art, Architecture, Warsaw 1964 (in Polish).
• [11] G. Szefer, Dynamics of elastic bodies undergoing large motions and unilateral contact, Journal of Technical Physics XLI/4 (2000) 343-359.
• [12] G. Szefer, Dynamics of elastic bodies in terms of plane frictional motion, Journal of Theoretical and Applied Mechanics 39/2 (2001) 395-408.
• [13] J. Świder, G. Wszołek, Analysis of complex mechanical systems based on the block diagrams and the matrix hybrid graphs method, Journal of Materials Processing Technology 157-158 (2004) 250-255.
• [14] J. Świder, P. Michalski, G. Wszołek, Physical and geometrical data acquiring system for vibration analysis software, Journal of Materials Processing Technology 164-165 (2005) 1444-1451.
• [15] S. Woroszył, Examples and tasks of the theory of vibrations, Second Volume, Continuous systems. PWN, Warsaw 1979 (in Polish).
• [16] G. Wszołek, Modelling of mechanical systems vibrations by utilization of grafsim software, Journal of Materials Processing Technology 164-165 (2005) 1466-1471.
• [17] G. Wszołek, vibration analysis of the excavator model in grafsim program on the basis of a block diagram method, Journal of Materials Processing Technology 157-158 (2004) 268-273.
• [18] K. Żurek, Active mechanical systems in reduction of vibration. Buletinul Institutului Politehnic Diu Iasi, Romania (2005) 480-484.
• [19] K. Żurek, Design of reducing vibration machatronical systems. Proceedings of the Computer Integrated.