| Project/Area Number |
08650293
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Dynamics/Control
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| Research Institution | Okayama University |
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Principal Investigator |
KAGAWA Yukio Okayama University, Department of Electrical and Electronic Professor, 工学部, 教授 (10019200)
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| Co-Investigator(Kenkyū-buntansha) |
WAKATSUKI Naoto Okayama University, Department of Environmental and Civil Engineering, Assistant, 工学部, 助手 (40294433)
TSUCHIYA Takao Okayama University, Department of Electrical and Electronic Engineering, Associa, 工学部, 助教授 (20217334)
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| Project Period (FY) |
1996 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1997: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1996: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Keywords | Finite Element Method / Piezoelectric Gyroscope / Monolithic Configuration / Three-dimensional Analysis / Piezoelectric Sensor / 3次元場 / 圧電振動 |
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| Research Abstract |
A numerical simulator for piezoelectric gyroscopes is developed using the finite element method. The finite element formulation is given for three-dimensional models including the effect of Coriolis force due to rotation around the arbitrary axis. Anisotropic elasticity is also included in the formulation. For a numerical example, the gyroscope of a thin square plate is first considered to evaluate the accuracy and the validity of the developed simulator. It is confirmed that the numerical results by the three-dimensional analysis show good agreement with the results by the two-dimensional analysis which is previously reported. The realistic analysis can be carried out by the three-dimensional analysis. For another example, the gyroscope of a thin square plate vibrating in flexural mode is next demonstrated. The flexural mode gyroscopes has a sensitivity to the rotation around the arbitrary axis. It is possible to separately detect the rotational angular frequency around the z axis and x or y axes using the gyroscope in flexural mode. The experiments are finally carried out for the prototype gyroscope of a thin square plate. It is confirmed that the numerical results show good agreement with the experimental results. It is shown in the above results that the developed three-dimensional simulator is useful to analyze or design of the piezoelectric gyroscopes.
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