Distributed shell control with a new multi-DOF photostrictive actuator design

Yue, Honghao; Sun, Guanghui; Deng, Zongquan; Tzou, H. S.

doi:10.1016/j.jsv.2010.03.016

Cited by 22 publications

(9 citation statements)

References 15 publications

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“…Thus, the Dirac delta function is used to denote the loading location without considering the contact area. Thus, the mechanical force at the location x=x1 * can be expressed as 38,39 where δ is the Dirac delta function which just presents non-zero value at the point loading point; x1 * is the point loading location; F3 * is the magnitude of the mechanical force; ω is the excitation frequency. For a harmonic actuation excitation, the actuation voltage can be written as φa(t)=φaejωt.…”

Section: Vibration Control Of the Beammentioning

confidence: 99%

Flexoelectric control of beams with atomic force microscope probe excitation

Zhang

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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Based on the converse flexoelectric effect, flexoelectric actuator is designed and used to control the dynamic displacement of cantilever beams. First, shell-type stress expression based on double-curvature shell induced by the converse flexoelectric effect is developed, which can be simplified to a flexoelectric-laminated cantilever beam by applying two Lamé parameters and beam radius of curvature. Then, the flexoelectric actuator is designed with a conductive atomic force microscope probe and a flexoelectric layer. An inhomogeneous electric field is generated when the external voltage is applied on the atomic force microscope probe and the flexoelectric layer, which leads to stress in the longitudinal direction of beam and control moment. With the flexoelectric-induced bending moment, displacement induced by the external force and flexoelectric actuator is derived. The displacement is related to many parameters, such as actuation voltage, atomic force microscope probe radius and flexoelectric layer thickness. Cases are studied to optimize the control effect with different parameters. Results show that vibration control effect is enhanced with a higher actuation voltage and a smaller atomic force microscope probe radius for each mode. Besides, the thicker flexoelectric layer enhances the control effect with a larger bending moment arm for each mode. Dynamic vibration is controlled effectively by converse flexoelectric effect.

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Section: Vibration Control Of the Beammentioning

confidence: 99%

Flexoelectric control of beams with atomic force microscope probe excitation

Zhang

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Li et al (2007) proposed a light-controlled servo system and studied its characteristics. Yue et al (2010) introduced a novel multi-degree-of-freedom (DOF) distributed photostrictive actuator and its multiple model control actions on cylindrical shells were evaluated. Rahman and Nawaz (2011) conducted the finite element modeling analysis of photostrictive thin film and studied the photostrictive actuators for microbeams.…”

Section: Introductionmentioning

confidence: 99%

The experimental analysis on the driving characteristics of photo response torsion actuator

Liu

Wang

et al. 2020

Journal of Intelligent Material Systems and Structures

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The lanthanum-doped lead zirconate titanate ceramic is a well-known photostrictive material and has been studied extensively as wireless photo-controlled microactuators for its characteristic of photostrictive effect. However, the hysteresis phenomenon between photovoltage and photo-induced deformation has seriously hindered the application of the high-frequency dynamic field. The primary purpose of this article is to propose a photo response torsion actuator driven by opto-electrostatic hybrid driving method based on lanthanum-doped lead zirconate titanate ceramic to achieve the goal of rapid response regardless of the hysteresis phenomenon. To this end, this study observed the driving voltage, the relationship between the photovoltaic voltage of lanthanum-doped lead zirconate titanate ceramic and the deflection of the actuator, and the influence of different loads on driving characteristics through a series of experiments. From these experiments, the results indicate that when lanthanum-doped lead zirconate titanate ceramic is irradiated by ultraviolet light, the photovoltaic voltage with load is lower than that without load. The trend of deformation curves is in agreement with the trend of the driving voltage curves under different loads conditions. And the deformation of torsion actuator increases with the increase in light intensity. Therefore, the photo response torsion actuator driven by the opto-electrostatic hybrid driving method can control the deformation with rapid response speed effectively; meanwhile, the hysteresis phenomenon can be ignored.

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“…Varieties of optical micro-devices using PLZT ceramics were proposed, for example, photo-driven micro-walking machines, 1,2 ''sunflower'' device, 3 photo-driven relay, 4 electrostaticoptical motor, 5 photo-driven gripper, 6,7 and photophone device. 8 Meanwhile, a large number of PLZT actuators were proposed, such as rainbow 1 School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, China 2 School of Intelligent Science and Control Engineering, Jinling Institute of Technology, Nanjing, China configuration actuator, 9 bimorph configuration actuator, 7 0-3 polarization PLZT actuator, 10 twodimensional (2D) distributed opto-electro-mechanical actuator, 11 multi-degree-of-freedom (DOF) photostrictive actuator, 12 and Skew-Quad actuator. 13 Furthermore, active vibration or shape control for flexible structures laminated with PLZT actuators was carried out, 14,15 for example, beams, 16,17 plates, 11,18,19 cylindrical shells, [20][21][22] and spherical and parabolic shells.…”

Section: Introductionmentioning

confidence: 99%

Research on the response improvement of optical actuation based on lead lanthanum zirconate titanate ceramics

Wang

Huang

Tang

2015

Advances in Mechanical Engineering

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Lead lanthanum zirconate titanate actuators taken as one type of photo-deformable actuators have been widely applied for micro-driven systems and active vibration control of photostrictive laminated flexible structures. However, the slow response of photodeformation of single patch lead lanthanum zirconate titanate actuator greatly affects its application. In this article, the main factors for the slow response of the lead lanthanum zirconate titanate actuator are investigated using experimental method. The increasing temperature during light on state and the residual photovoltage and photodeformation during light off state are considered as dominant factors causing the slow response of the lead lanthanum zirconate titanate actuator. To gain a better driving capability of lead lanthanum zirconate titanate actuator, some effective solutions through weakening the effect of increasing temperature and eliminating residual photovoltage and photodeformation are proposed and experimentally validated in this article. Considering the effective solutions proposed in this article, a novel optical driving mechanism based on multi-patches combination is proposed.

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Distributed shell control with a new multi-DOF photostrictive actuator design

Cited by 22 publications

References 15 publications

Flexoelectric control of beams with atomic force microscope probe excitation

Flexoelectric control of beams with atomic force microscope probe excitation

The experimental analysis on the driving characteristics of photo response torsion actuator

Research on the response improvement of optical actuation based on lead lanthanum zirconate titanate ceramics

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