声表面波器件测量种植体微扭矩的三维有限元仿真

李伟; 王光宗; 杨峰; 梁玉前; 汪昆

doi:10.3788/OPE.20132107.1713

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声表面波器件测量种植体微扭矩的三维有限元仿真

微纳技术与精密机械 | 更新时间：2020-08-12

- 声表面波器件测量种植体微扭矩的三维有限元仿真
- 3-D Finite Element Simulation for measurement of micro-torque of dental implant by SAW devices
- 光学精密工程 2013年21卷第7期页码：1713-1718
- 作者机构：
  
  1. 重庆大学新型微纳器件与系统技术国家重点学科实验室重庆,400030
  2. 第三军医大学西南医院牙科重庆,400030
- 作者简介：
- 基金信息：
  
  重庆市自然科学基金计划项目()
- DOI：10.3788/OPE.20132107.1713
  中图分类号： R782.12;TB931
- 收稿日期：2013-01-15，
  
  修回日期：2013-03-01，
  
  网络出版日期：2013-07-15，
  
  纸质出版日期：2013-07-15
- 稿件说明：
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李伟王光宗杨峰梁玉前汪昆. 声表面波器件测量种植体微扭矩的三维有限元仿真[J]. 光学精密工程, 2013,21(7): 1713-1718

. 3-D Finite Element Simulation for measurement of micro-torque of dental implant by SAW devices[J]. Editorial Office of Optics and Precision Engineering, 2013,21(7): 1713-1718
李伟王光宗杨峰梁玉前汪昆. 声表面波器件测量种植体微扭矩的三维有限元仿真[J]. 光学精密工程, 2013,21(7): 1713-1718 DOI： 10.3788/OPE.20132107.1713.

. 3-D Finite Element Simulation for measurement of micro-torque of dental implant by SAW devices[J]. Editorial Office of Optics and Precision Engineering, 2013,21(7): 1713-1718 DOI： 10.3788/OPE.20132107.1713.

摘要

为了利用微扭矩准确、非破坏性地测量牙种植体的稳定性，采用三维有限元分析方法研究了声表面波器件（SAW）检测牙种植体稳定性的可行性。首先，在梯度剪切应力场下建立了SAW器件的谐振频率和扭矩之间的理论模型。然后，利用ANSYS有限元软件对梯度剪切应力场下SAW器件的谐振频率变化情况进行谐振响应分析。最后，对比分析了理论模型和仿真得到的数据。分析结果表明：SAW器件谐振频率的变化量与最大剪切应力呈线性关系，但两者之间存在3%的误差；种植体的微扭矩与SAW器件的谐振频率呈线性关系。因此，在理论上能够利用SAW器件测量种植体的微扭矩，从而实现对种植体稳定性的检测。

Abstract

To achieve a non-destructive measurement of stability of a dental implant accurately

a three-dimensional finite element analysis method was used to explore the feasibility to measure the stability of the dental implant by Surface Acoustic Wave(SAW) devices. First

a theoretical model related to the resonant frequencies of SAW devices and the torque under a shear stress gradient field were researched. And then

harmonic responses about the changes of resonant frequencies of the SAW devices under the gradient shear stress field were analyzed by using ANSYS finite element software. Finally

the theoretical model and simulation results were compared. The results show that the resonant frequencies of the SAW devices are in proportion with the maximum shear stress

though there is a 3% deviation between the theory and the simulation results. Also

there is a linear relationship between the torque and the resonance frequencies of the SAW devices. Therefore

the measurement of micro torque of the implant is theoretically feasible by SAW devices

consequently the stability detection of the dental implant can be achieved.

关键词

Keywords

references

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