Characterization of the bell-shaped vibratory angular rate gyro.
Characterization of the bell-shaped vibratory angular rate gyro.
复制标题
钟形振动角速率陀螺仪的表征
DOI：
10.3390/s130810123
复制
发表时间：
2013-08-07
期刊：
影响因子：
--
通讯作者：
Fan J
中科院分区：
文献类型：
--
作者：
Liu N;Su Z;Li Q;Fu M;Liu H;Fan J
钟形振动角速率陀螺是受中国传统钟的启发而设计的一种新型壳体振动陀螺。它通过驻波旋进效应使角速度敏感。钟形谐振器是BVG的核心部件，外观类似于毫米级的中国传统钟，如乾隆钟和永乐钟。它由Ni43CrTi制成，这是一种恒模量合金。激励元件、控制元件和检测元件分别均匀分布并附接到谐振器。本文介绍了BVG的设计、分析和实验。对钟形谐振器的振动特性进行分析是十分重要的。在正交曲线坐标系下，推导了应变方程、内力方程和谐振器的平衡微分方程。当敏感轴上存在输入角速度时，利用薄壳理论分析了振动特性。在此基础上，得到了振型函数和简化的二阶简正振动模态动力学方程。建立了主模态和次模态的科里奥利耦合关系。给出了信号处理和控制回路的方法。利用有限元法对钟形谐振器的抗冲击性能进行了分析，并与其它谐振器进行了比较，结果表明BVG具有更好的抗冲击性能。设计了一种合理的安装方式和一个陀螺样机。通过实验对BVG的陀螺效应进行了表征。实验结果表明，BVG不仅具有成本低、功耗低、工作寿命长、灵敏度高等优点，而且结构简单，对于中低角速度测量具有较好的抗冲击性能。
The bell-shaped vibratory angular rate gyro (abbreviated as BVG) is a novel shell vibratory gyroscope, which is inspired by the Chinese traditional bell. It sensitizes angular velocity through the standing wave precession effect. The bell-shaped resonator is a core component of the BVG and looks like the millimeter-grade Chinese traditional bell, such as QianLong Bell and Yongle Bell. It is made of Ni43CrTi, which is a constant modulus alloy. The exciting element, control element and detection element are uniformly distributed and attached to the resonator, respectively. This work presents the design, analysis and experimentation on the BVG. It is most important to analyze the vibratory character of the bell-shaped resonator. The strain equation, internal force and the resonator's equilibrium differential equation are derived in the orthogonal curvilinear coordinate system. When the input angular velocity is existent on the sensitive axis, an analysis of the vibratory character is performed using the theory of thin shells. On this basis, the mode shape function and the simplified second order normal vibration mode dynamical equation are obtained. The coriolis coupling relationship about the primary mode and secondary mode is established. The methods of the signal processing and control loop are presented. Analyzing the impact resistance property of the bell-shaped resonator, which is compared with other shell resonators using the Finite Element Method, demonstrates that BVG has the advantage of a better impact resistance property. A reasonable means of installation and a prototypal gyro are designed. The gyroscopic effect of the BVG is characterized through experiments. Experimental results show that the BVG has not only the advantages of low cost, low power, long work life, high sensitivity, and so on, but, also, of a simple structure and a better impact resistance property for low and medium angular velocity measurements.
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影响因子：
0.9
作者：
Singh, A. K.
通讯作者：
Singh, A. K.
影响因子：
2.6
作者：
Kang, JH;Leissa, AW
通讯作者：
Leissa, AW
影响因子：
2.7
作者：
Ayazi, F;Najafi, K
通讯作者：
Najafi, K
DOI：
10.1109/taes.2012.6129662
发表时间：
2012-01-01
影响因子：
4.4
作者：
Gallacher, B. J.
通讯作者：
Gallacher, B. J.
DOI：
10.1299/jsmec.45.2
发表时间：
2002-03-01
期刊：
JSME INTERNATIONAL JOURNAL SERIES C-MECHANICAL SYSTEMS MACHINE ELEMENTS AND MANUFACTURING
影响因子：
--
作者：
Leissa, AW;Kang, JH
通讯作者：
Kang, JH