The Study Of Class V Flextensional Transducer

The role of the transducer as the link between electrical and acoustic parts of the overall system is a crucial feature in optimising its performance. To achieve long distance explore for active sonar, and detect object difficulty for its quieting technology, as the same time, arrays are in need of working in deep water for prospecting and collecting of submarine oil and mine. Tansducer designer are absorbed in the transducer and arrays of low-freqency, high-power, compact-size.One of the most effective ways to obtain low frequency, high-power,compact -size projectors is using the flextensional mode of the shells. Commonly, the study of mainly object is the class V fextensional transducer,it comprises a piezoelectric ceramic ring sandwiched between two spherical shell segments that are driven in flexure.This paper introduces the methods to implement low frequency, high-power, compact-size transducers, the development, sorts and differences of flextensional transducers. The dynamics and significance of class V flextensional transducers are introduced in detail.This paper introduces basic FEM's theory briefly, and summarizes all sorts of piezoelectric transducer's matrix with different polar, and epitomizes every parameter's principle and formula of ANSYS, at last, presents its optimization to make further design of transducer.Difficulties were met when using analysis method because flextensional transducers have complicated configuration. This paper uses ANSYS to analyze the structure making the whole process easier and convenient. The comparison between FEM method and measurment results shows that it is feasible to predict the performance of the transducer with FEM.In the end, a class V flex transducer were fabricated, the impedance characteristic, the TVR and vertical directivity of tansducer were measured. The conclusions of the paper were draw and research directions were more determined.