Dynamical flexibility of the free-free damped rod in transportation

• Autorzy: Żółkiewski S.
• Języki publikacji: EN

Abstrakty

EN

Purpose: of this thesis is derivation of dynamical flexibility of the free-free rod system in transportation. The well-known problem of dynamical analysis of systems in rotational transportation was developed in this work to systems with taking into consideration damping forces. Design/methodology/approach: The dynamical flexibility method was used to analysis of the free-free rod’s vibrations. Mathematical models derived in previous articles were used to derivation of the dynamical flexibility. Considerations were done by the Galerkin’s method. Findings: There were considered systems in rotational motion treated in this thesis as main transportation. Dynamical characteristics in form of dynamical flexibility as function of frequency and mathematical models were presented in this work. Research limitations/implications: Analyzed systems were simple linear homogeneous not supported rods. Working motion was limited to plane rotational motion. Future works would consider complex systems and nonlinearity. Practical implications: of derived dynamical characteristics can easily support designing process and can be put to use in stability analysis and assigning stability zones. Thank to derived mathematical models the numerical applications can be implemented and some calculations can be automated. Originality/value: Analyzing models are rotating flexible free-free rods with taking into consideration the damping forces.

Słowa kluczowe

EN

numerical technique; computational mechanics; applied mechanics; transportation effect

PL

technika nuneryczna; mechanika numeryczna; mechanika stosowana; efekt przemieszczeniowy

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2009
• Tom: Vol. 35, nr 1
• Strony: 71--78
• Opis fizyczny: Bibliogr. 20 poz., rys., tabl.

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

• [1] A. Buchacz, S. Żółkiewski, Formalization of the longitudinally vibrating rod in spatial transportation, International Conference of Machine-Building and Technosphere of the XXI Century, Sevastopol, 2007, 279-283.
• [2] A. Buchacz, S. Żółkiewski, The dynamical flexibility of the transversally vibrating beam in transportation, Folia Scientiarum Universitatis Technicae Resoviensis, 222, Mechanics b. 65 Problems of dynamics of construction, Rzeszów – Bystre, 2005, 29-36.
• [3] A. Buchacz, S. Żółkiewski, Dynamic analysis of the mechanical systems vibrating transversally in transportation, Journal of Achievements in Materials and Manufacturing Engineering 18 (2007) 331-334.
• [4] A. Buchacz, S. Żółkiewski, Mechanical systems vibrating longitudinally with the transportation effect, Journal of Achievements in Materials and Manufacturing Engineering 21/ 1 (2007) 63-66.
• [5] A. Dymarek, The sensitivity as a Criterion of Synthesis of Discrete Vibrating Fixed Mechanical Systems, Journal of Materials Processing Technology 157-158 (2004) 138-143.
• [6] 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.
• [7] T. Dzitkowski, Computer Aided Synthesis of Discrete-Continuous Subsystems of Machines with the Assumed Frequency Spectrum Represented by Graphs, Journal of Materials Processing Technology 157-158 (2004) 1317-1326.
• [8] K. Jamroziak, Analysis of a Degenerated Standard Model in the Piercing Process, Journal of Achievements in Materials and Manufacturing Engineering 22/1 (2007) 65-68.
• [9] K. Jamroziak, Process Description of piercing when using a degenerated model, Journal of Achievements in Materials and Manufacturing Engineering 26/1 (2008) 57-64.
• [10] K. Jamroziak, M. Bocian, Identification of composite materials at high speed deformation with the use of degenerated model, Journal of Achievements in Materials and Manufacturing Engineering 28/2 (2008) 171-174.
• [11] 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.
• [12] R. Solecki, J. Szymkiewicz, Rod and superficial systems. Dynamical calculations. Arcades, Building Engineering, Art, Architecture, Warsaw, 1964 (in Polish).
• [13] G. Szefer, Dynamics of elastic bodies undergoing large motions and unilateral contact, Journal of Technical Physics. Quarterly XLI/4 (2000) 343-359.
• [14] G. Szefer, Dynamics of elastic bodies in terms of plane frictional motion, Journal of Theoretical and Applied Mechanics 39/2 (2001) 395-408.
• [15] 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.
• [16] 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.
• [17] G. Wszołek, Modelling of Mechanical Systems Vibrations by Utilization of Grafsim Software, Journal of Materials Processing Technology 164-165 (2005) 1466-1471.
• [18] 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.
• [19] K. Żurek, Design of reducing vibration mechatronical systems, Proceedings of the Scientific International Conference “Computer Integrated Manufacturing” CIM’2005, Gliwice-Wisła, 2005, 292-297.
• [20] S. Żółkiewski, Modelling of dynamical systems in transportation using the Modyfit application, Journal of Achievements in Materials and Manufacturing Engineering 28/1 (2008) 71-74.