Thermoelastic coupling effect analysis for gyroscope resonator from longitudinal and flexural vibrations

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• 作者：Changlong Li ; Shiqiao Gao ; Shaohua Niu ; Haipeng Liu
• 刊名：Microsystem Technologies
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：22
• 期：5
• 页码：1029-1042
• 全文大小：1,425 KB
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• 作者单位：Changlong Li (1)
  Shiqiao Gao (1)
  Shaohua Niu (1)
  Haipeng Liu (1)
  
  1. State Key Laboratory of Explosion Science and Technology, School of Mechatronical Engineering, Beijing Institute of Technology, Room. 408, Haidian District, Beijing, China
  
• 刊物类别：Engineering
• 刊物主题：Electronics, Microelectronics and Instrumentation
  Nanotechnology
  Mechanical Engineering
  Operating Procedures and Materials Treatment
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-1858
• 卷排序：22

文摘

The paper illustrates thermoelastic modeling, analysis and simulation solutions of gyroscope resonator from the longitudinal and transverse vibration modes. In the study, the sensitive components of gyroscope are the cantilever beams within the drive mode and the detection mode. Then, the effect of thermoelastic coupling, coupling strength on gyroscope performance is analyzed by two different numerical calculation methods, and the results are validated by FEM simulation solutions. The corresponding parameters which are analyzed in the study for thermoelatic coupling are temperature, thermoelastic damping (TED) and frequency shift ratio. It is found that the thermoelastic damping has the order of 10−4 at both transverse and longitudinal vibrations. And the shift frequency sharply increased and then gradually approaches the horizontal line at the longitudinal and flexural vibrations. Then the comparison of thermoelastic damping is studied at two vibration modes. Compared with longitudinal vibration, the thermoelastic damping for flexural vibration has a similar pattern, while the former’s peak value is twice lower than that of the latter.