三叠片型换能器的仿真与测试  

Simulation and Test of Sandwich Dipole Transducer

作　　者：李丹[1] 卢贵武[1] 王东[2] 

机构地区：[1]中国石油大学(北京)理学院,北京102249 [2]中国科学院声学研究所,北京100190

出　　处：《内蒙古师范大学学报（自然科学汉文版）》2013年第4期417-421,共5页Journal of Inner Mongolia Normal University(Natural Science Edition)

基　　金：教育部科学技术研究重点项目(108023);中国石油大学(北京)基础学科研究项目(01JB0169)

摘　　要：测井换能器是偶极声波测井仪器的核心部件.利用ANSYS数值仿真软件,在自由和钳定边界条件下,模拟了三叠片型换能器在空气中的振动模态,并在硅油中进行了谐响应分析,结果表明,媒介质和机械边界条件对换能器的振动模态和谐振频率均有影响.对三叠片型换能器的阻抗特性进行了测试,并与数值计算结果进行了对比分析,结果基本一致.因此,数值模拟计算可以为换能器的优化设计提供技术数据和理论依据.Logging transducer is the core component of dipole acoustic well-logging instrument.In this paper,the ANSYS software is used to simulate the vibration mode in the air and analyze harmonic response of sandwich dipole transducer in the silicone oil under the given boundary conditions of freedom and fixed.The results show that the vibration mode and resonant frequency can be affected by media and mechanical boundary conditions.The impedance characterics of sandwich dipole transducer is measured and compared with the numerical result.The two results are almost in agreement.The simulation can provide technological data and theoretical basis for the optimal design of transducer.

关 键 词：三叠片型换能器 有限元法 模态分析 谐响应分析 

分 类 号：P631.5[天文地球—地质矿产勘探]