FLEXOELECTRIC ACTUATION AND CONTROL OF CONICAL SHELLS
Flexoelectric is a kind of smart materials,which has a special effect called flexoelectricity.The converse flexoelectric effect can be utilized to actuate and control flexible structure.This paper focus on the precision actuation and control effectiveness of conical shells.A flexoelectric patch is attached to a truncated conical shell.Applying a control voltage to the line-electrode on the external surface of the flexoelectric patch,coupled with the bottom surface electrode layer,an inhomogeneous electric field can be generated,and consequently induce internal actuation stresses.The stress-induced membrane control forces and bending control moments regulate the vibrations of conical shell,its longitudinal,circumferential and transverse control actions are evaluated in this paper.The relationships between the actuation effects and various design parameters,such as the thickness of flexoelectric patch,radius of line-electrode,etc.,are also studied.
Conical shells Flexoelectric actuation Vibration control Maximal controllable deflection
Han QIU Mu FAN Dan WANG Hornsen TZOU
State Key Lab of Mechanical and Control of Mechanical Structures;College of Aerospace Engineering,Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R.China
国际会议
石家庄
英文
509-513
2019-11-01（万方平台首次上网日期，不代表论文的发表时间）