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气枪声源是一种低频大功率声源,我国已进行了利用气枪声源作为次声扫雷具的尝试。本文就如何根据扫雷的要求来确定其主要参数—初始压力P_s、初始容积V_s及定深度等作了探讨,并对利用数值方法计算浅海次声场进行了研究。结果表明满足扫雷要求的P_s或V_s须在一确定范围内选择,该范围由频率、引信灵敏度、扫雷半径及海区声场分布共同决定。最后给出了在兼顾声效率及声场作用范围时决定最佳参数的公式。
Air gun sound source is a low-frequency high-power sound source, our country has carried out the use of air gun sound source as a second attempt to sweep mine equipment. In this paper, how to determine the main parameters according to the requirement of mine sweeping - initial pressure P_s, initial volume V_s and fixed depth are discussed, and the numerical method is used to study the shallow acoustic environment. The results show that P_s or V_s satisfying the requirements of mine clearance should be selected within a certain range, which is determined by the frequency, fuze sensitivity, mine sweeping radius and sea sound field distribution. Finally, the formula that decides the best parameters when taking into account the sound efficiency and the scope of sound field is given.