Piezoelectric Micro-Pump Suction Cup Design and Research on the Optimal Static Driving Characteristics

Guan, Enguang; Ge, Yunhao; Liu, Jihao; Wang, Yan; Zhao, Yanzheng

doi:10.1007/978-3-319-65289-4_3

Cited by 3 publications

(9 citation statements)

References 7 publications

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“…Therefore, in order to be able to use equation 1, the deformation of the piezoelectric disk caused by the longitudinal and shear piezoelectric effects has been not taken into account in this paper. Such simplification is used by many researchers, for example by the authors of the papers [21,24,25].…”

Section: Analytical Description Of Transducer Deformationmentioning

confidence: 99%

“…Therefore, assuming-as the authors of the work did [25]-that the piezoelectric disk is made of Pz26, and the lower layer made of copper, a deflection curve was prepared (Figure 4). As for geometrical dimensions, they were respectively: R = 6 × 10 −3 m, Ro = 5 × 10 −3 m, t1 = 2 × 10 −4 m, t2 = 1.5 × 10 −4 m. In addition, the driving voltage was set to 200 V. As there was no specific material data for Pz26 and Cu given by authors of paper [25], it was taken from [29]: E2 = 1/s11 = 7.69 × 10 10 Pa, ν2 = −s12/s11 = 0.334, d31 = −1.3 × 10 −10 m/V, E1 = 13 × 10 10 Pa, ν1 = 0.34. Comparing the results obtained with the literature data ( Figure 4), it can be concluded that both solutions are approximately equal-the maximum error is 1.3%.…”

Section: Verification Of the Analytical Solutionmentioning

confidence: 99%

“…Comparing the results obtained with the literature data ( Figure 4), it can be concluded that both solutions are approximately equal-the maximum error is 1.3%. This slight difference in results could be due to the fact that comparative data (dashed line, Figure 4) was obtained by digitizing the graph from [25].…”

Section: Verification Of the Analytical Solutionmentioning

confidence: 99%

“…Assuming, just like the authors of [24], the following: The obtained solution had to be compared to the ones available in the literature. Therefore, assuming-as the authors of the work did [25]-that the piezoelectric disk is made of Pz26, and the lower layer made of copper, a deflection curve was prepared (Figure 4). As for geometrical dimensions, they were respectively: R = 6 × 10 −3 m, R o = 5 × 10 −3 m, t 1 = 2 × 10 −4 m, t 2 = 1.5 × 10 −4 m. In addition, the driving voltage was set to 200 V.…”

Section: Verification Of the Analytical Solutionmentioning

confidence: 99%

“…A similar method was used by the authors of [21] for a two-layer circular piezoelectric converter. However, with double-layer circular transducers, the method based on Plate Theory is most often used to determine electromechanical characteristics [22][23][24][25]. This approach can also be used for three-layer [26] or multi-layer [27] circular piezoelectric converters.…”

Section: Introductionmentioning

confidence: 99%

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Static Electromechanical Characteristic of a Three-Layer Circular Piezoelectric Transducer

Mieczkowski

Borawski

Szpica

2019

Sensors

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The paper presents research related to the functional features of a novel three-layer circular piezoelectric actuator/sensor. The outer layers of the transducer are made of non-piezoelectric material. The middle layer comprises two elements—a piezoelectric disk, and a ring made of non-piezoelectric material. The additional external passive layer has a very important function; it protects the transducer’s electrical components against damage caused by external factors. Also, if sparking on the transducer wires or electrodes occurs, this layer prevents fire. So far, there is no analytical model for such a transducer. Closed-form analytical equations are important tools for predicting and optimizing the operation of devices. Thus, using both the Plate Theory and constitutive equations of piezoelectric materials, an analytical formula describing transducer deflection as a function of electrical loads has been found (electromechanical characteristic of the transducer). In addition, it is worth noting that under certain assumptions, the developed analytical model can also be used for two-layer transducers. The tests carried out show satisfactory compliance of the results obtained through the developed solution with both literature data and numerical data. Moreover, based on the obtained analytical model, the effect of selected non-dimensional variables on the actuator performance has been examined. These parameters include dimensions and mechanical properties of both piezoelectric disk and passive plates and strongly influence the behavior of the transducer.

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Section: Analytical Description Of Transducer Deformationmentioning

confidence: 99%

Section: Verification Of the Analytical Solutionmentioning

confidence: 99%

Section: Verification Of the Analytical Solutionmentioning

confidence: 99%

Section: Verification Of the Analytical Solutionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Static Electromechanical Characteristic of a Three-Layer Circular Piezoelectric Transducer

Mieczkowski

Borawski

Szpica

2019

Sensors

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Modeling and Design of Soft, Positive-Pressure Actuated Suction Cups for Anchoring in Minimally Invasive Surgery

Giri

Girerd

Luo

et al. 2022

2022 9th IEEE RAS/EMBS International Conference for Biomedical Robotics and Biomechatronics (BioRob)

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Analytical and numerical modelling of deflection of circular three-layer piezoelectric transducer

Mieczkowski

Szpica

Borawski

2020

19th International Scientific Conference Engineering for Rural Development Proceedings

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The paper deals with modelling of a circular piezoelectric actuator under electrical loading. A threelayer transducer is analysed. The outer layers of the transducer are made of non-piezoelectric material. The middle layer comprises two elements -a piezoelectric disk, and a ring made of non-piezoelectric material. This design protects the electrical components of the converter against harmful external factors (e.g. hightemperature, chemically active atmosphere). For such a transducer, there is an analytical model describing its deflection as a function of the applied load. Closed-form analytical equations are important tools for predicting and optimizing the operation of devices. However, it should be remembered that analytical models often use various simplifications. Such simplification, in some situations, may cause that the deflection determined with the analytical solution may differ from the actual deflection of the transducer. Therefore, in this paper the results obtained using the analytical model, were compared with the numerical results (no simplifications were used in the numerical simulation). The tests were performed for various constructional variants of the transducer, determined by selected non-dimensional parameters. These parameters include dimensions and mechanical properties of both the piezoelectric disk and passive plates. The obtained results made it possible to determine the degree of applicability of the analytical solution. It was found that the analytical model gives correct results, when the piezoelectric disk is made of various piezoelectric materials (e.g. Lead Zirconate Titanate (PZT), Polyvinylidene Fluoride (PVDF), whereas the passive components are layers made of materials used in MEMS (micro-electro mechanical system), such as silicon, silicon nitride, and most metals. Moreover, the range of relative thicknesses of individual transducer layers was determined, for which the convergence of analytical and numerical solution is obtained.

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Piezoelectric Micro-Pump Suction Cup Design and Research on the Optimal Static Driving Characteristics

Cited by 3 publications

References 7 publications

Static Electromechanical Characteristic of a Three-Layer Circular Piezoelectric Transducer

Static Electromechanical Characteristic of a Three-Layer Circular Piezoelectric Transducer

Modeling and Design of Soft, Positive-Pressure Actuated Suction Cups for Anchoring in Minimally Invasive Surgery

Analytical and numerical modelling of deflection of circular three-layer piezoelectric transducer

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