Vol.5, No 1, 2008 pp. 49 - 57
UDC 531.12
COMPONENTS OF THE MECHANICAL DISPLACEMENTS
OF THE PIEZOCERAMIC RING POINTS
Milan Đ. Radmanović, Dragan D. Mančić, Zoran M. Petrušić,
Goran Z. Stančić
Faculty of Electronic Engineering, University of Niš, Serbia
Abstract. In this paper the components of the mechanical displacements
of the piezoceramic ring points in the radial and thickness direction of
oscillation are determined. Mechanical displacements are obtained as the
function of ring thickness and the internal-external radius ratio. The
influence of any dimension changes of the ring on the front form of its
displacements is discussed. Theoretical analyses show that the proposed
method is simple, easy to calculate and especially suitable for the study
of coupled vibrations.
Key Words: Mechanical displacements, Piezoceramic ring, Resonance
frequency, Vibrational modes
KOMPONENTE MEHANIČKIH POMERAJA TAČAKA
PIEZOKERAMIČKOG PRSTENA
U ovom radu određene su komponente mehaničkih pomeraja tačaka piezokeramičkog
prstena u radijalnom i debljinskom pravcu oscilovanja. Mehanički pomeraji
su dobijeni u funkciji debljine prstena, kao i odnosa unutrašnjeg i spoljašnjeg
prečnika. Diskutovan je uticaj promene dimenzija prstena na oblik fronta
njegovih pomeraja. Teorijske analize pokazuju da je predloženi metod jednostavan,
lak za proračune i posebno pogodan za analizu spregnutih vibracija.
Ključne reči: Mehanički pomeraji, Piezokeramički prsten,
Rezonantna frekvencija, Oscilatorni mod
