OPCM阵列驱动器力学性能分析

Mechanical Performance Analysis of OPCM Array Actuator

用于电声转换的超声相控阵驱动器是超声相控阵检测系统的关键组成部分,针对复杂工程结构损伤特性及现有超声相控阵检测技术中驱动器存在的不足,将压电正交异性复合材料(OPCM)应用于阵列结构的驱动器研制中,可实现驱动器定向驱动作用。通过数值仿真,建立了单一OPCM元件及OPCM阵列驱动器在激励过程中的力学模型,分析驱动器的驱动电压与总位移之间的关系,并通过实验验证其聚焦驱动力学性能。

Ultrasonic phased array actuator used for electronic - to - sound transformation is a key part of ultrasonic phased array system. To solve some problems in complex structural damage testing and modern phased array actuator, the orthotropic piezoelectric composite material （OPCM ） was applied in the array actuator to realize the directional actuating function. The mechanical model of the single OPCM element and OPCM array transducer was developed. The relation between the actuating voltage and total displacement was analyzed. The focusing actuating mechanics performance was validated by experiments.