Improving bending-mode response of piezoceramic actuators under high electric field by modification of material parameters

Sumit, .; Kane, S. R.; Sinha, Anil K.; Ganguli, Tapas; Shukla, Rahul

doi:10.1109/isaf51494.2022.9870145

Cited by 2 publications

(4 citation statements)

References 19 publications

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“…It is discovered that the nonlinear coefficients of piezoceramic actuator change the effective compliance coefficients and effective piezoelectric strain coefficients of piezoceramic actuator. As discussed in our previous works [28,29] the determination of nonlinear coefficients of piezoelectric actuator or its contribution with applied electric field is not a trivial task since these coefficients are function of electric field, mechanical stress and mechanical strain. Due to this reason, the iPRF-based optimization technique (refer section 2) is used to calculate the electric field of nine electrodes of piezoceramic actuator to achieve the target elliptical profile (refer equation ( 1)) of PUSiM.…”

Section: Response Of Piezoceramic Actuator Of Pusimmentioning

confidence: 99%

“…Continuous piezoactuator with multiple electrodes is preferred over numerous segmented piezoactuators to achieve the target profiles [20]. Both piezoceramic and single crystal actuators show nonlinear behaviour at high electric fields [21][22][23][24][25][26][27][28][29]. Most of the studies available in literature [30][31][32][33] have used variable piezoelectric strain coefficient (function of strain or electric field) to simulate the nonlinear behaviour of piezoelectric actuators.…”

Section: Introductionmentioning

confidence: 99%

“…(c) As shown by Ren et al [46,47] the piezoelectric strain coefficients change with the applied electric fields. In addition, Bruno et al [25], Upadrashta et al [48] and Sumit et al [28,29] showed that the higher order coefficients not only changes the effective piezoelectric strain coefficients but also changes the elastic coefficients of piezoelectric materials. Furthermore, Mayes et al [26] and Priya et al [49] showed that all the linear coefficients such as, compliance coefficient, piezoelectric strain coefficient, relative permittivity change with the applied electric fields.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Measurements for static shape control optimization of silicon mirror using nonlinear piezoceramic actuators

Sumit¹,

Kane²,

Ganguli³

et al. 2023

Smart Mater. Struct.

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In this paper, experimental study for shape control of silicon mirror is done by nonlinear piezoceramic actuator. A piezoelectric unimorph-based silicon mirror (PUSiM) is fabricated using APC 850 piezoceramic for shape control analysis. The piezo response function of all the actuators and profile of PUSiM are measured by confocal sensor at various applied electric fields to verify the nonlinearity of piezoceramic actuator. For comparison, electromechanical coupled finite element model of PUSiM is developed. Recently proposed iterative piezo response function-based optimization is used to calculate the electric field of piezoceramic actuators to achieve the target elliptical profile of PUSiM. At optimum voltage the achieved profile of PUSiM is quite close to the target elliptical profile with 193 nm root-mean-square error. Knowing the nonlinearity inherent in the piezoceramic actuators at high voltages the proposed measurement technique is a way forward for the shape control of structures and deformable mirrors.

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Section: Response Of Piezoceramic Actuator Of Pusimmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Measurements for static shape control optimization of silicon mirror using nonlinear piezoceramic actuators

Sumit¹,

Kane²,

Ganguli³

et al. 2023

Smart Mater. Struct.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The desired shape of the smart structure is not obtained at optimum electrode potential if PRF-based formulation is used to optimize the electrode potential of the nonlinear piezoactuators. A number of studies are present in literature [43,[48][49][50][51][52][53][54][55] which show that the behavior of some piezoelectric materials specially lead zirconate titanate (PZT) type piezoelectrics are nonlinear with the applied electric field. Due to this reason, optimization using PRF is not feasible to determine the electrode potential of nonlinear piezoactuators.…”

Section: Introductionmentioning

confidence: 99%

Iterative piezo response function-based optimization for static shape control of cantilever beam using nonlinear piezoactuators

Sumit¹,

Kane²,

Sinha³

et al. 2022

Smart Mater. Struct.

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Shape control of complex structures by optimizing the electrode potential is not achievable directly by analytical solutions and piezo response function base-optimization techniques due to the nonlinear response of piezoactuators. In the present work, a metaheuristic iterative piezo response function (iPRF)-based optimization technique is developed to achieve the arbitrary shape of piezoelectric unimorph using nonlinear piezoactuators. In this regard, a piezoelectric unimorph (PU) is fabricated using APC 850 piezoactuator to verify the nonlinear response in bending mode and nonlinear analytical model of PU. After verification, length of the inactive layer and number of piezoactuators in PU are modified to study the shape control. iPRF-based technique is used for the optimization of electric potential to achieve the target shape of modified piezoelectric unimorph (MPU) with varying piezoactuators. The results of iPRF-based technique are compared with the results of simulated annealing-based direct optimization technique. Unlike simulated annealing-based direct optimization technique, prior knowledge of nonlinear coefficients of piezoactuator is not required in iPRF-based technique. Optimum values obtained from both the direct nonlinear solution- and iPRF-based optimization methods are same for all MPUs. Furthermore, the number of iterations of iPRF-based optimization approach is not affected by the number of piezoactuators used to achieve the desired shape.

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Improving bending-mode response of piezoceramic actuators under high electric field by modification of material parameters

Cited by 2 publications

References 19 publications

Measurements for static shape control optimization of silicon mirror using nonlinear piezoceramic actuators

Measurements for static shape control optimization of silicon mirror using nonlinear piezoceramic actuators

Iterative piezo response function-based optimization for static shape control of cantilever beam using nonlinear piezoactuators

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