Study on buckling of cymbal transducer

Cymbal transducer is a new type of transducer appeared in recent 20 years. Its geometry is small and thin, so it has a low work frequency. It was researched extensively and used as underwater transducers. But the metal cap is very thin and therefore the structure of cymbal is not so strong. According to theory of stability, the structure may lose its stability under great hydrostatic pressure. This is disastrous to cymbals work in deep water. An arch model is created according to the geometry of cymbal. The stability performance is analyzed with eigenvalues method. Critical buckling pressures of symmetrical and antisymmetrical buckling are found out. Then the arch model is simulated in finite element analysis (FEA) software ANSYS. The results form theory analysis and simulation agree very well. The antisymmetrical buckling is the dominant buckling form. At last, a sample cymbal is developed and tested in hydraulic tank. The result form measurement is greater than that of calculation. Some probable reason for the difference of results is brought forward. More suitable model is expected to acquire a more accurate result.