Parameter Identification and Model Validation for the Piezoelectric Actuator in an Inertia Motor

M. Hunstig, T. Hemsel, Journal of Korean Physical Society 57 (2010) 952–954.

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Abstract
Piezoelectric inertia motors make use of the inertia of a slider to drive the slider by friction contact in a series of small steps which are generally composed of a stick phase and a slip phase. If the best electrical drive signal for the piezoelectric actuator in an inertia motor is to be determined, its dynamical behaviour must be known. A classic dynamic lumped parameter model for piezoelectric actuators is valid only in resonance and, therefore, is not suitable for modelling the actuator in an inertia motor. A reduced dynamic model is used instead. Its parameters are identified using a step response measurement. This model is used to predict the movement of the actuator in response to a velocity-optimized signal introduced in a separate contribution. Results show that the model cannot represent the dynamical characteristics of the actuator completely. For determining voltage signals that let piezoelectric actuators follow a calculated movement pattern exactly, the model can, therefore, only be used with limitations.
Publishing Year
Journal Title
Journal of Korean Physical Society
Volume
57
Issue
4
Page
952-954
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Hunstig M, Hemsel T. Parameter Identification and Model Validation for the Piezoelectric Actuator in an Inertia Motor. Journal of Korean Physical Society. 2010;57(4):952-954. doi:10.3938/jkps.57.952
Hunstig, M., & Hemsel, T. (2010). Parameter Identification and Model Validation for the Piezoelectric Actuator in an Inertia Motor. Journal of Korean Physical Society, 57(4), 952–954. https://doi.org/10.3938/jkps.57.952
@article{Hunstig_Hemsel_2010, title={Parameter Identification and Model Validation for the Piezoelectric Actuator in an Inertia Motor}, volume={57}, DOI={10.3938/jkps.57.952}, number={4}, journal={Journal of Korean Physical Society}, author={Hunstig, Matthias and Hemsel, Tobias}, year={2010}, pages={952–954} }
Hunstig, Matthias, and Tobias Hemsel. “Parameter Identification and Model Validation for the Piezoelectric Actuator in an Inertia Motor.” Journal of Korean Physical Society 57, no. 4 (2010): 952–54. https://doi.org/10.3938/jkps.57.952.
M. Hunstig and T. Hemsel, “Parameter Identification and Model Validation for the Piezoelectric Actuator in an Inertia Motor,” Journal of Korean Physical Society, vol. 57, no. 4, pp. 952–954, 2010.
Hunstig, Matthias, and Tobias Hemsel. “Parameter Identification and Model Validation for the Piezoelectric Actuator in an Inertia Motor.” Journal of Korean Physical Society, vol. 57, no. 4, 2010, pp. 952–54, doi:10.3938/jkps.57.952.

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