TY - JOUR
T1 - Stiffness and damping effects of the rhombic piezoelectric stack transducer with a negative capacitance shunt
AU - Yan, B.
AU - Zheng, W.
AU - Zhou, S.
AU - Wu, C.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2019/9/26
Y1 - 2019/9/26
N2 - The piezoelectric shunt damping (PSD) is widely utilized to control structural vibrations based on its damping performance. Unlike previous studies, this work considers the stiffness and damping effects of a rhombic piezoelectric stack transducer with a negative capacitance shunt. The piezoelectric shunt stiffness (PSS) and the PSD concepts are proposed and theoretically modelled to investigate the stiffness and damping performance. The piezoelectric stack transducer with a negative capacitance can achieve both negative and positive stiffnesses to tune the natural frequency of the host structure. The root locus methods are utilized to judge the stability of the system. Both numerical simulation and experimental results demonstrate that the negative stiffness and the positive stiffness of the system greatly depend on the negative capacitance, while the damping depends on the resistance.
AB - The piezoelectric shunt damping (PSD) is widely utilized to control structural vibrations based on its damping performance. Unlike previous studies, this work considers the stiffness and damping effects of a rhombic piezoelectric stack transducer with a negative capacitance shunt. The piezoelectric shunt stiffness (PSS) and the PSD concepts are proposed and theoretically modelled to investigate the stiffness and damping performance. The piezoelectric stack transducer with a negative capacitance can achieve both negative and positive stiffnesses to tune the natural frequency of the host structure. The root locus methods are utilized to judge the stability of the system. Both numerical simulation and experimental results demonstrate that the negative stiffness and the positive stiffness of the system greatly depend on the negative capacitance, while the damping depends on the resistance.
UR - http://www.scopus.com/inward/record.url?scp=85073601815&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/531/1/012012
DO - 10.1088/1757-899X/531/1/012012
M3 - 会议文章
AN - SCOPUS:85073601815
SN - 1757-8981
VL - 531
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012012
T2 - 2nd International Conference on Modeling in Mechanics and Materials
Y2 - 29 March 2019 through 31 March 2019
ER -