光学精密工程2013，Vol.21Issue(7)：1713-1718,6.DOI:10.3788/OPE.20132107.1713
声表面波器件测量牙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
摘要
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
声表面波器件/牙种植体/扭矩测量/ANSYS/谐振频率Key words
Surface Acoustic Device(SAW)/dental implant/torque measurement/ANSYS/resonant frequency分类
通用工业技术引用本文复制引用
李伟,王光宗,杨峰,梁玉前,汪昆..声表面波器件测量牙种植体微扭矩的三维有限元仿真[J].光学精密工程,2013,21(7):1713-1718,6.基金项目
重庆市自然科学基金资助项目(No.CSTC2007BB3203) （No.CSTC2007BB3203）
