基于多元高斯声束模型的三维声场仿真

Three Dimensional Sound Field Simulation based on Multivariate Gauss Beam Model

为了提高超声检测的准确性,需对超声声场分布有一定的了解。根据实际超声检测要求,本文将采用超声水浸式检测法,用多元高斯声束模型模拟了声束垂直入射至不同介质中的三维辐射声场,并分析了不同截面的声场分布,即变化趋势。通过计算得出仿真结构与实际理论相符,表明本论文的方法可以应用在超声三维声场仿真中。

In order to improve the accuracy of ultrasonic testing,we need to have a certain understanding of ultrasonic field distribution. According to the actual ultrasonic testing requirements,the ultrasonic water immersion test method is used in this paper. The three-dimensional radiation field of the acoustic beam is simulated by the multiple Gauss sound beam model,and the distribution of the sound field in different sections that is the trend of change is analyzed. The simulation results show that the simulation method is in line with the actual theory,which shows that the method proposed in this paper can be applied to the threedimensional ultrasonic field simulation.