Polar graphs and structural numbers in synthesis of active and passive mechanical systems

• Autorzy: Białas K.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The main purpose of this work is the presentation analysis and synthesis of mechanical systems including passive and active elements reducing vibrations. In result of conducted synthesis was received structures and parameters of a discrete model meeting the defined requirements concerning the dynamic features of the system, in particular, the frequency spectrum. The aim of this paper is also comparison of these two methods of reduction of vibrations. Design/methodology/approach: In this paper was used method of polar graphs and their relationship with algebra of structural numbers. This method is called a non-classical method. The use of such a method enables the analysis and synthesis of mechanical systems irrespective of the type and number of the elements of such a system. Findings: The application of active elements to eliminate vibration enables overcoming limitations which occur if passive elements are used. Active elements give better results in case of reduction of low frequency vibrations. Presented approach simplifies the process of selecting the dynamical parameters of systems in view of their dynamical characteristics. Research limitations/implications: The scope of discussion is analysis and synthesis of mechanical systems including passive and active elements reducing of vibrations, but for this type of systems, such approach is sufficient. Practical implications: The practical realization of the reverse task of dynamics introduced in this work can find uses in designing of machines with active and passive elements with the required frequency spectrum. Originality/value: Thank to the approach, introduced in this paper, can be conducted as early as during the designing of future functions of the system as well as during the construction of the system. Using method and obtained results can be value for designers of mechanical systems with elements reducing vibrations.

Słowa kluczowe

EN

process systems design; polar graphs; structural numbers; reduction of vibrations

PL

projektowanie; grafy biegunowe; liczby strukturalne; redukcja wibracji

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2008
• Tom: Vol. 30, nr 1
• Strony: 43--50
• Opis fizyczny: Bibliogr. 22 poz., tab., wykr.

Twórcy

autor

Białas K.

• 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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• [3] K. Białas, Comparison of passive and active reduction of vibrations of mechanical systems, Journal of Achievements in Materials and Manufacturing Engineering 18 (2006) 455-458.
• [4] K. Białas, Synthesis of mechanical systems including passive or active elements reducing of vibrations, Journal of Achievements in Materials and Manufacturing Engineering 20 (2007) 323-326.
• [5] K. Białas, Reverse task of passive and active mechanical systems, Journal of Achievements in Materials and Manufacturing Engineering 23/2 (2007) 51-54.
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• [17] A. Buchacz, A. Wróbel, Piezoelectric layer modelling by equivalent circuit and graph method, Journal of Achievements in Materials and Manufacturing Engineering 20 (2007) 299-302.
• [18] A. Buchacz, S. Żółkiewski, Dynamic analysis of the mechanical systems vibrating transversally in transportation, Journal of Achievements in Materials and Manufacturing Engineering 20 (2007) 331-334.
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• [20] 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.
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