Multi-Objective Optimal Mathematical Model of Geometrical Parameters of Ultrasonic Phased Arrays Transducer
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摘要: 利用多目标优化设计方法寻求最优的超声相控阵换能器参数, 分别以最大偏转方向上的归一化主瓣宽度与归一化远场声压的差值和相控阵峰值旁瓣与主瓣的振幅比为目标函数, 建立超声相控阵换能器多目标优化设计的数学模型, 对超声相控阵主要的几何参数进行优化设计。结果表明, 利用优化设计方法计算的几何参数满足了设计优化的目标。Abstract: Optimal ultrasonic phase array transducer parameters were deduced by use of multi-objective optimization method. Difference of normalized main lobe width and normalized pressure in far field and the amplitude ratio of the peak side lobe and main lobe at maximum steering direction were objectives respectively. The mathematic model of ultrasonic phased array was established to optimize the key geometrical parameters. The result shows geometrical parameters obtained with the method satisfy the goal of the design optimization.
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Keywords:
- Phased arrays /
- Beam directivity /
- Optimal design
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