Effects of boundary conditions on vibrating mode of acoustic logging dipole transducer  

作　　者：QIAO WenXiao,CHE XiaoHua & ZHANG Fei State Key Laboratory of Petroleum Resource and Prospecting,China University of Petroleum,Beijing 102249,China 

出　　处：《Science China Earth Sciences》2008年第S2期195-200,共6页中国科学（地球科学英文版）

基　　金：Supported by the National Natural Science Foundation of China (Grant Nos.10534040 and 40574049);the National High-Tech Research & Development Program of China (Grant No.2006AA060103)

摘　　要：Acoustic transducer is an important part of acoustic well logging tool. In this paper,ANSYS software package is used to design acoustic dipole transducer and simulate vibrating mode of the dipole transducer in different mechanical boundary conditions. The results show that boundary conditions influence the number of vibrating mode in the same frequency band and the frequency value of the same vibrating mode. Several acoustic dipole transducers are designed according to the results of numerical simulation and laboratory measurements. The basic frequency of vibrating mode of experi-ment has good agreement with that of simulation. The numerical simulation plays a good guidance role in designing,producing and correctly installing the acoustic dipole transducer.Acoustic transducer is an important part of acoustic well logging tool. In this paper,ANSYS software package is used to design acoustic dipole transducer and simulate vibrating mode of the dipole transducer in different mechanical boundary conditions. The results show that boundary conditions influence the number of vibrating mode in the same frequency band and the frequency value of the same vibrating mode. Several acoustic dipole transducers are designed according to the results of numerical simulation and laboratory measurements. The basic frequency of vibrating mode of experi-ment has good agreement with that of simulation. The numerical simulation plays a good guidance role in designing,producing and correctly installing the acoustic dipole transducer.

关 键 词：ACOUSTIC DIPOLE TRANSDUCER vibrating MODE basic frequency ACOUSTIC well LOGGING 

分 类 号：TB53[理学—物理]