Vibration damping by structural friction controlled by piezoelecric elements

• Autorzy: Gałkowski Z.
• Języki publikacji: EN

Abstrakty

EN

In the paper analysis of the influence of structural friction and piezoelectric elements on damping of torsion vibration in a shaft is presented. The structural friction between the piezoelectric actuators and shaft is taken into account. For the purpose of the analysis the mathematical model of permanent shaft-sleeve joint is formulated. The obtained differential equations of motion are solved by the asymptotic Bogolyubov- Krylov- Mitropolski method via developing relations for derivatives of the amplitude and phase. The obtained equations are solved for the case of harmonic excitation with the uniformly increasing frequency of the driving torque, and for the case of free vibration, in which the effect of the gain factor magnitude on the damping level is examined. On the grounds of numerical simulations the grownth in the damping effciency in the joint as a function of the gain factor is confirmed.

Słowa kluczowe

EN

piezoelecric; structural friction; damping; vibrations

• Wydawca: Polish Academy of Sciences, Committee of Automatic Control and Robotics
• Czasopismo: Archives of Control Sciences
• Rocznik: 2003
• Tom: Vol. 13, no. 2
• Strony: 177--190
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Gałkowski Z.

• The Faculty of Automobile and Heavy Machinery Engineering, Warsaw University of Technology, 02-524 Warszawa ul. Narbutta 84,

Bibliografia

• [1] T. Bailey and J.E. Hubbard: Distributed Piezoelectric - Polymer Active Vibration Control of a Cantilever Beam. J. Guidance, Control and Dynamics, 8(5), (1985), 605-611.
• [2] Z. Gałkowski: Wpływ długości swobodnej wału w nierozłącznym połączeniu typu tuleja - wał na dekrement tłumienia przy uwzględnieniu tarcia konstrukcyjnego. Proc. VII Conf. Theory of Machine and Machinery, Poland, (1977), (in Polish).
• [3] A. Mitropolski: Problems of asymptotic theory of nonstationary vibrations. Nauka, Moscov, 1964, (in Russian).