Method for improving reliability of flextensional transducer

Abstract

The invention discloses a method for improving the reliability of a flextensional transducer, and belongs to the field of underwater acoustic sealing. The method includes spraying a predetermined coating onto the first contact surface, in contact with an upper seal ring, of the upper seal end cap of the flextensional transducer, wherein the predetermined coating is used for reducing a frictional coefficient between the upper seal end cap and the upper seal ring; spraying the predetermined coating onto the second contact surface, in contact with a lower seal ring, of the lower seal end cap of the flextensional transducer, wherein the predetermined coating is used for reducing a frictional coefficient between the lower seal end cap and the lower seal ring; assembling the sprayed upper and lower seal end caps to the flextensional transducer. The method solves a problem that the friction between the seal rings and the seal end caps wears the seal rings and aggravates aging so as to cause failure, and achieves the effect of reducing the wear of the seal rings and improving the reliability of the flextensional transducer.

Description

technical field [0001] The invention relates to the field of underwater acoustic sealing, in particular to a method for improving the reliability of a flextensional transducer. Background technique [0002] The flextensional transducer is a kind of emitting transducer widely used in the field of low-frequency and high-power underwater acoustic detection. It uses the vibration of the longitudinal vibrator to excite the shell with the amplitude amplification effect to generate bending vibration. In order to increase volumetric displacement output and achieve high power radiation, the shell cannot be clamped by the upper and lower sealing end caps, and there must be a very small gap between the shell and the sealing end caps. [0003] The current sealing technology used in flextensional transducers is mainly by placing sealing rings in the upper and lower grooves of the shell, and controlling the distance between the upper and lower sealing covers through nuts, studs and column...

AI Technical Summary

Problems solved by technology

When working, the shell is constantly flexing and vibrating, and the sealing ring is also displaced accordingly. The interface between the sealing ring and the sealing end cover is rubbed. Reliability and lifetime reduction of Zhang transducer

[0004] To reduce the wear of the sealing ring, it is necessary to reduce the power of the flexural transducer, so that the bending vibration amplitude of the shell becomes smaller and the vibration frequency is reduced, or the flexural transducer needs to be disabled directly, so this way of reducing wear Will affect the performance of the flextensional transducer

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