Pull-in instability and nonlinear vibration of microbeam with piezoelectric patch driven by electrostatic force using modified couple stress theory.
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| Title: | Pull-in instability and nonlinear vibration of microbeam with piezoelectric patch driven by electrostatic force using modified couple stress theory. |
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| Authors: | Saw, Gyana Ranjan1 (AUTHOR) sgyana87@gmail.com, Singh, Suraj1 (AUTHOR), Chakraborty, Goutam1 (AUTHOR) |
| Source: | Mechanics of Advanced Materials & Structures. 2025, Vol. 32 Issue 19, p4738-4755. 18p. |
| Subjects: | Electrostatics, Piezoelectric detectors, Microstructure, Vibration (Mechanics), Strains & stresses (Mechanics) |
| Abstract: | The static and dynamic pull-in characteristics of electrostatically and piezo-electrically actuated microbeam are investigated. The static pull-in voltage is evaluated using analytical methods based on MCST, CCMT and validated through the use of FE based COMSOL multiphysics tools. The dynamic pull-in voltage obtained from numerical technique and verified with existing literature, lower than the static pull-in voltage. The piezoelectric patch has a significant influence on the pull-in voltage and an effect on the aspect ratio. Moreover, the pull-in band and instability zone of the microbeam with weak and hard forcing function have been investigated using multiple scale method. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | The static and dynamic pull-in characteristics of electrostatically and piezo-electrically actuated microbeam are investigated. The static pull-in voltage is evaluated using analytical methods based on MCST, CCMT and validated through the use of FE based COMSOL multiphysics tools. The dynamic pull-in voltage obtained from numerical technique and verified with existing literature, lower than the static pull-in voltage. The piezoelectric patch has a significant influence on the pull-in voltage and an effect on the aspect ratio. Moreover, the pull-in band and instability zone of the microbeam with weak and hard forcing function have been investigated using multiple scale method. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 15376494 |
| DOI: | 10.1080/15376494.2024.2413183 |
