Publication Date:
2019-07-13
Description:
Theoretical and test results for the development of piezoelectric-actuator-based active vibration control (AVC) are presented. The evolution of this technology starts with an ideal model of the actuator and progresses to a more sophisticated model where the pushers force the squirrel cage ball bearing supports of a rotating shaft. The piezoelectric pushers consist of a stack of piezoelectric ceramic disks that are arranged on top of one another and connected in parallel electrically. This model consists of a prescribed displacement that is proportional to the input voltage and a spring that represents the stiffness of the stack of piezoelectric disks. System tests were carried out to stabilize the AVC system, verify its effectiveness in controlling vibration, and confirm the theory presented.
Keywords:
MECHANICAL ENGINEERING
Type:
Electro-optical Materials for Switches, Coatings, Sensor Optics, and Detectors; Apr 16, 1990 - Apr 20, 1990; Orlando, FL; United States
Format:
text
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