加速度地震检波器简谐振子有限元分析
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
介绍简谐振子的工作原理。利用ANSYS软件,采用有限元法创建了简谐振子质量块的实体模型,选择单晶硅作为简谐振子中质量块的材料;设置了模型的材料属性,采用智能分网的方式对模型划分网格,并对质量块模型施加沿x轴水平方向载荷,进行三维的静力分析和模态分析。静力分析得到实体模型的总位移是0.236×10-19μm;模态分析时只对前四阶模型进行了分析,根据其振型图及其总位移的应力云图,得到实体模型的二十阶振动模态的频率是78 001Hz,二十阶的总位移是0.122×10-6μm。
The working principle of the harmonic oscillator is introduced.Using the soft of ANSYS,the solid model of harmonic oscillator mass is created by adopting the finite element method.Single crystal silicon is chosen as the material of mass of harmonic oscillator.The material attributes of modal is set and the modal is meshed by ways of smart meshing.Then a horizontal load is applied along with the X axis for the static analysis and modal analysis.The total displacement of physical model by static analysis is 0.236×10-19μm.Only the fourth-order of modal is analyzed by modal analysis.According to the vibration mode and the stress nephogram of total displacement,the twentieth-order vibration mode frequency of physical models is 78 001 Hz and the total displacement is 0.122×10-6μm.
引文
[1]唐东林.集成加速度地震检波理论与实验研究[D].天津:天津大学,2006:7-9.
    [2]恩德,魏建霞,徐可欣,等.高精度硅微简谐振子的设计与制作工艺[J].纳米技术与精密工程,2007,5(2):117-120.EN De,WEI Jianxia,XU Kexin,et al.Design and fabrication process of a Si-based high precision harmonic oscillator[J].Nanotechnology and Precision Engineering,2007,5(2):117-120.
    [3]朱伯芳.有限单元原理与应用[M].北京:中国水利水电出版社和知识产权出社,2009.
    [4]恩德,冯捷逾,张宁波.三分量加速度地震检波器光弹波导特性分析[J].应用光学,2011,32:39-43.EN De,FENG Jieyu,ZHANG Ningbo.Analysis of characteristics of photoelastic waveguides in threecomponent acceleration seismic geophone[J].Journal of Applied Optics,2011,32:39-43.
    [5]黄伯坚.大学物理[M].通山:华中科技大学出版社,2006.
    [6]薛风先,胡仁喜,康士廷,等.ANSYS12.0机械与结构有限元分析从入门到精通[M].北京:机械工业出版社,2010.
    [7]曾攀,雷丽萍,方刚.基于ANSYS平台有限元分析手册:结构的建模与分析[M].北京:机械工业出版社,2011.
    [8]尚晓江,邱峰,赵海峰,等.ANSYS结构有限元高级分析方法与范例应用[M].北京:中国水利水电出版社,2008.
    [9]王占国,陈立良,屠海令.中国材料工程大典[M].北京:化学工业出版社,2006.
    [10]方昆凡.工程材料手册——有色金属材料卷[M].北京:北京出版社,2002.
    [11]AFSHAR A,ABBASI M,ESLAMI M R.Two-dimensional solution for coupled thermoelasticity of functionally graded beams using semi-analytical finite element method[J].Mechanics of Advanced Materials and Structures,2011,18(5):327-336.
    [12]BROWN L W,SMITH L M.A simple transversely isotropic hyperelastic constitutive model suitable for finite element analysis of fiber reinforced elastomers[J].Journal of Engineering Materials and Technology,2011,133:1-13.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心