in one or more embodiments, a vibration system comprises a vibration plate, a support member surrounding the vibration plate and a vibration induction member surrounding the support member, where the vibration induction member is configured to expand and contracting radially against the support member to produce axial vibration of the vibrating plate. in one embodiment, the vibrating plate has an outer circumference； the tubular member is concentrically arranged around the outer circumference of the plate, and an annular vibration inducing member is concentrically arranged around the outer circumference of the tubular member. the vibration inducing member is preferably a piezoelectric ring, which is radially expandable and contractable against the wall of the tubular member so as to cause the plate to vibrate in the axial direction. in another embodiment, an aerosol generating system comprises a piezoelectric ring which is radially expandable and shrinkable upon actuation thereof； a tubular member disposed in the central hole of the piezoelectric ring and a circular vibrating aperture plate disposed through the inner lumen of the tubular member. the piezoelectric ring is radially expandable and contractable against the tubular member to cause the aperture plate to vibrate in the axial direction, and a reservoir of liquid is coupled to the tubular member to supply liquid to the vibratory aperture plate and produce an aerosol by vibration thereof.em uma ou mais modalidades, um sistema de vibração compreende uma placa vibratória, um membro de suporte que circunda a placa vibratória e um membro de indução de vibração que circunda o membro de suporte, onde o membro de indução de vibração é configurado para se expandir e contrair radialmente contra o membro de suporte, de modo a produzir uma vibração axial da placa vibratória. em uma modalidade, a placa vibratória tem uma circunferência externa； o membro tubular é concentricamente disposto em torno da circunferência exter
