DEVELOPMENT AND INVESTIGATION OF HYDROACOUSTIC ANTENNAS WITH ELECTROHYDRAULIC IMPACT

An experimental installation for a high-power hydroacoustic signal generator has been developed. The experimental installation is purposed to generate electric discharges with an impulse power of more than 10 MW and a discharge pulse repetition rate of up to 30 Hz in aquatic medium. Two designs of hydroacoustic antennas with impact excitation are suggested: double plates and cylindrical. The choice of a cylindrical shaped antenna has been substantiated. Based on experimental data, a directional diagram is drawn, and a mathematical model of a cylinder-shaped antenna is suggested. The power of sound propagation is found to be a function of distance. The calculation method for such antennas has been developed. The suitability of electrohydraulic antennas for high-distance underwater sound propagation was shown.