文章摘要
引用本文:刘飞,郭中洋.面向Micro-PNT系统的微陀螺敏感结构参数化有限元仿真研究[J].导航定位与授时,2018,5(3):87-92 本文二维码信息
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面向Micro-PNT系统的微陀螺敏感结构参数化有限元仿真研究
The Parameterized FEA Simulation for MEMS Gyro Sensors of Micro-PNT Systems
  
DOI:
中文关键词:  多环  微半球  参数化有限元
English Keywords:Micro multiple-ring  Micro hemisphere  Parameterized FEA
基金项目:武器装备探索研究项目(7131239);“十三五”全军共用信息系统装备预先研究课题(315060203)
作者单位
刘飞 北京自动化控制设备研究所北京 100074 
郭中洋 北京自动化控制设备研究所北京 100074 
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中文摘要:
      针对Micro-PNT系统中多环和微半球陀螺敏感结构在设计阶段三维实体仿真分析存在的模型复杂、网格特征较难匹配结构特征、模型复用性较低等问题,提出一种基于低维单元简化建模,并通过实常数和截面定义等方式对特征结构进行全参数化表征的分析方法。通过对比,在相当的分析精度下,参数化分析中所需的节点数量仅为三维实体仿真的2%和43%,仿真效率提高显著,可加快陀螺设计收敛进程,支撑Micro-PNT技术发展。
English Summary:
      To solve the problems such as complicated modeling, meshing mismatch and low reusability of the 3D simulation during the designing phase of micro multiple-ring and micro hemis-phere gyro sensors for a Micro-PNT system, a parameterized analysis method is proposed, which is based on simplified modeling by reduced dimensional elements characterized with real constants or section definition. By way of contrast, the parameterized analysis method needs only 2% and 43% of the number of nodes that are needed in the 3D method under similar accuracy respectively, which can effectively promote the convergence of gyro design and support the development of Micro-PNT technology.
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