H∞ deflection control of a unimorph piezoelectric cantilever under thermal disturbance

Rakotondrabe, Micky; Clevy, Cédric; Lutz, Philippe

doi:10.1109/iros.2007.4399083

Cited by 12 publications

(10 citation statements)

References 13 publications

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“…In this paper, we propose a new microactuator that combines the thermal bimorph principle and the piezocantilever microactuator. In fact, temperature has been considered as external disturbance to be rejected for piezoelectric actuators [14], while in this paper, we will show that it can be used as a benefit. The proposed microactuator, called hybrid thermo-piezoelectric, will benefit the high range of displacement from the thermal bimorph and the high resolution from the piezocantilever.…”

Section: Introductionmentioning

confidence: 92%

Principle, characterization and control of a new hybrid thermo-piezoelectric microactuator

Rakotondrabe

Ivan

2010

2010 IEEE International Conference on Robotics and Automation

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This paper presents a new actuator based on a unimorph piezocantilever and on the thermal bimorph principle, called hybrid thermopiezoelectric actuator. The main advantage of the proposed actuator is the high range of positioning from the thermal actuation and the high resolution and bandwidth from the piezoelectric one. A characterization and linear modeling are proposed. Finally, we propose an adapted control law to manage the two possible actuation types.

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Section: Introductionmentioning

confidence: 92%

Principle, characterization and control of a new hybrid thermo-piezoelectric microactuator

Rakotondrabe

Ivan

2010

2010 IEEE International Conference on Robotics and Automation

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“…Unfortunately, the performance of piezoelectric materials is quite sensitive to temperature. Changes in temperature result in expansion of the piezoelectric material and influence the material's parameters [28]. The former is referred to as the thermomechanical effect, and the latter causes the nonlinearities of hysteresis and creep to be temperature-dependent [29]- [31].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Identification of Temperature-Dependent Hysteresis in Piezoelectric Materials Considering Parameter Sensitivity

Liu

2020

IEEE Access

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Hysteresis is an important nonlinearity effect in piezoelectric materials and is sensitive to temperature. This paper extends the saturated capacitor model to capture temperature-dependent hysteresis by replacing the constant parameters with functions of temperature. To obtain these functions, several sets of constant parameters are identified at different temperatures, and then each term of the parameters is fitted as a function with respect to temperature. In the curve fitting process, the parameter sensitivity is employed as a weight factor. The effectiveness of the proposed modeling and parameter determination procedure is verified with experimental data. The overall normalized root mean square error is approximately 5%, including 3% error caused by the identified parameters. INDEX TERMS Temperature-dependent hysteresis, modeling and identification, piezoelectric materials, saturated capacitor hysteresis model.

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“…In many applications, the thermal effect on piezoelectric actuators has been considered as unwanted disturbance that drastically decreases the accuracy. Therefore, the literature proposes suitable controllers for rejecting it [15] [16]. In this paper, we propose to combine the thermal effect and the piezoelectricity to develop a new actuation concept, called hybrid thermo-piezoelectric.…”

Section: Introductionmentioning

confidence: 99%

Development and Dynamic Modeling of a New Hybrid Thermopiezoelectric Microactuator

Rakotondrabe

Ivan

2010

IEEE Trans. Robot.

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This paper presents a new hybrid micro-actuator based on the combination of piezoelectric and thermal effects. The proposed actuator can perform both a high stroke coarse positioning through the thermal actuation, and a high resolution fine positioning through the piezoelectric actuation. The micro-actuator structure is a unimorph piezoelectric cantilever, which also constitutes a thermal bimorph that is very sensitive to temperature variation. While electrical voltage is used to control the piezoelectric actuation, we use a Peltier module to provide the temperature variation and to control the thermal functioning. In order to understand the behavior of the hybrid actuator, a model is developped. For better precision but at the same time for model simplicity, the thermal part is modeled with the thermal network whereas the Prandtl-Ishlinskii hysteresis approach is used to model the nonlinearity of the piezoelectric part. Finally, a series of experimental results validate the developed model.

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H∞ deflection control of a unimorph piezoelectric cantilever under thermal disturbance

Cited by 12 publications

References 13 publications

Principle, characterization and control of a new hybrid thermo-piezoelectric microactuator

Principle, characterization and control of a new hybrid thermo-piezoelectric microactuator

Modeling and Identification of Temperature-Dependent Hysteresis in Piezoelectric Materials Considering Parameter Sensitivity

Development and Dynamic Modeling of a New Hybrid Thermopiezoelectric Microactuator

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