传感技术学报Issue(12)：1695-1699,5.DOI:10.3969/j.issn.1004-1699.2013.12.014
耦合结构对音叉式陀螺振动特性的影响
Influence of Coupled Mechanism on Vibration Characteristics of Tuning Fork Gyroscope
摘要
Abstract
Coupled Mechanism plays an important role in vibration characteristics of MEMS tuning fork gyroscope. A drive mode vibration model of a typical tuning fork gyroscope and its coupled mechanism was constructed based on its operating principle. On the basis of the vibration model, the influence on vibration characteristics by coupled mechanism was calculated in the situation of asymmetric stiffness, asymmetric driving force amplitude and asymmetric mass. Simulation and comparison was implemented in FEM software to research the influence. The results of calculation and simulation show that when the frequency of driving force is constant, the stiffness of coupled mechanism has no influence on vibration characteristics. But for the tuning fork gyroscope which works at the natural frequency, the dimension of coupled mechanism affects the natural frequency of gyroscope, and thus affects its vibration characteristics. According to the result,the design criterion of coupled mechanism in tuning fork gyroscope was proposed.关键词
MEMS/耦合结构/有限元/音叉式陀螺/振动特性Key words
MEMS/coupled mechanism/FEM/tuning fork gyroscope/vibration characteristics分类
航空航天引用本文复制引用
孙香政,王刚,郭志想,陆志东..耦合结构对音叉式陀螺振动特性的影响[J].传感技术学报,2013,(12):1695-1699,5.基金项目
国家高技术研究发展计划(2011AA110102) （2011AA110102）
国家国际科技合作项目专项项目(2011DFA72370) （2011DFA72370）
