Alignment of distributed oscillation systems in piezo motors
Abstract
The pressing problem in the space domain is the development of large-sized reflectors for spacecrafts. The specified criteria for reflector structure are precise reflector surface shape and structure mass. Precise reflector surface shape during long-term performance is provided by the alignment of piezoelectric motors used in the reflector structure. These motors exhibit both limited mass-dimensional coefficient and can produce high force. Piezo-motor is distributed mechanical - acoustic oscillation system. In the piezo-motor mechanical - acoustic oscillation is generated by PZT-stack being transferred to the oscillator then to the load action element.
The objective of the work is the study the alignment of distributed oscillation systems in piezo-motors. The novelty of the work is using the alignment of oscillator impedance and load impedance to determine the performance resonance frequency of distributed oscillation system in piezo-motor. This method simplifies the possibility of analyzing distributed in piezo-motor oscillation system characteristics. The method was tested under different in piezo-motor load modes.- Publication:
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Journal of Physics Conference Series
- Pub Date:
- January 2019
- DOI:
- 10.1088/1742-6596/1145/1/012007
- Bibcode:
- 2019JPhCS1145a2007A