Rotating Ring with Thermo-Elastic Damping and Point Masses

Abstract:

Most of structures are inevitable for imperfections. In this regards, evaluation of imperfection is more important for sensitive devices such as the resonators for high level of accuracy. In this work, micro ring structure is studied with arbitrarily located point masses. As a model, rotating thin ring is used and heat conduction effects are considered with the thermo-elastic damping effects. Using mode shapes of the ring, analytical model is introduced. For analyzing micro structure, various level of Quality factor (Q-factor) are studied. Furthermore, influences of concentrated random point masses are considered by the split of the natural frequencies.

• Periodical: Applied Mechanics and Materials (Volumes 764-765)
• Pages: 359-363
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.764-765.359
• Online since: May 2015
• Authors: Seok Joo Kang*, Jung Hwan Kim, Ji Hwan Kim
• Keywords: Point Mass, Rotating Ring, Thermo-Elastic Damping

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