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为了有效解决水下大型结构或大型声源的近场声全息(NAH)测试与噪声源识别问题,研究了基于矢量阵测量的近场声全息的运动声源识别理论.在统计最优平面NAH理论基础上,建立了基于声压-振速测量的运动声源识别方法,并通过水池实验研究证明该识别方法能对水下运动声源进行准确识别.该方法可应用于水下大型结构或大型声源NAH的连续扫描测试,有效地解决传统测量方式的测量工作量大、测试时间长等问题.
In order to effectively solve the problem of near-field acoustic holography (NAH) testing and noise source identification of underwater large structures or large-scale sound sources, the theory of motion sound source recognition based on vector array measurement is studied. On the basis of the theory, a method of motion sound source recognition based on sound pressure and vibration velocity measurement is established, and the experimental results show that this recognition method can accurately identify underwater sound source.This method can be applied to large underwater structures or Large-scale sound source NAH continuous scan test, effectively solve the traditional measurement methods measurement workload, long test time and other issues.