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《Chinese Journal of Sensors and Actuators》 2011-09
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Research on Adhensive Layer and Its Effects on Vibtation Characteristics of Resonator and PZT of Cupped Gyro

ZHU Bingjie1,TAO Yi1,2,WU Yulie1,CHEN Zhihua1 1.College of Mechanical Engineering &Automation,National University of Defense technology,Changsha 410073,China; 2.Wuhan Ordnance N.C.O.Academy,Wuhan 430075,China  
Focused on the bonding of the piezoelectric ceramic of the cupped gyro,we established a finite element model of base-layer-piezoelectric laminate film,the model was simulated and analyzed by Ansys,and the analysis was tested by experiments.The Q-factor,output gain and frequency of cleavage of resonator which were effected by the thickness of adhesive layer,material properties and defects in adhesive layer were detailedly analyzed.It is shown that the adhesive layer has little effect on the resonator frequency,but great effect on the resonator vibration characteristics.Reducing the thickness of the adhesive layer,enhancing the hardness of the adhesive layer under a certain range of elastic modulus can improve the resonator vibration characteristics,at the same time,we have explored how to improve the shear resistance of the adhesive layer.The research work provides reference to improve the performance of the cupped gyro.
【Fund】: 国家自然科学基金项目(51005239);; 国防科技大学技术创新项目(JC09-03-3)
【CateGory Index】: O326
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