Behaviour of unimorph ring‐shaped piezoelectric actuator in fluidic valve. Issue 13 (10th December 2018)

• Record Type: Journal Article
• Authors: Wang, XuDong; Li, Guoxiu; Chen, Jun; Zhang, Tao
• Is Part Of: Journal of engineering. Volume 2019:Issue 13(2019)
• Page Start: 242
• Page End: 246
• Publication Date: 2018-12-10
• Subjects: piezoelectric actuators -- valves -- differential equations -- plates (structures); unimorph ring‐shaped piezoelectric plate -- actuator -- fluidic valve -- system modelling -- material mechanical properties -- nonpiezoelectric substrate -- differential equations -- displacements -- radial directions -- transverse directions -- clamped edge conditions -- transverse displacement solution -- applied voltage -- established system model -- behaviour analysis; Engineering -- Periodicals; Engineering; Electronic journals; Periodicals; 620.005
• DOI: 10.1049/joe.2018.9022
• Languages: English
• ISSNs: 2051-3305

Abstract

Abstract : This article focuses on the behaviour analysis of an unimorph ring‐shaped piezoelectric plate that is used as an actuator in a fluidic valve. First, the system modelling is discussed by using the material mechanical properties of the piezoelectric plate and the non‐piezoelectric substrate. That is, two differential equations are established for the displacements along the radial and transverse directions. After that, based on the clamped edge conditions, the transverse displacement solution is obtained as an explicit function of the applied voltage. On this basis, the analytical relationship between the transverse displacement and the applied voltage is displayed. Finally, three different voltages are applied to the ring‐shaped piezoelectric plate of a fluidic valve. The measured experimental results are almost consistent to the analytical results, which illustrates the validity of the established system model.