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Piezoceramic vibrotactile transducer based on pre-compressed arch

机译:基于预压拱的压电陶瓷触觉传感器

摘要

The vibration and electrical characterization of a piezoelectric tactor actuator is described. The actuator is a rectangular laminated flat plate with two opposite sides simply supported and two others free. Under an axial compression from the supports, the plate deforms into a stressed shallow shell. Electrical high frequency harmonic signals within relatively low-frequency bursts are applied to the piezoelectric layers. Depending on the axial compression and pre- deflection, frequency and magnitude of electrical input, the tunable actuator exhibits frequency/mode-controlled high-force over large area vibrations with intense displacement jumps. A single-degree-of-freedom model and simplified 1-D models are provided. The tactor provides efficient conversion of electrical energy into mechanical.
机译:描述了压电触觉致动器的振动和电特性。致动器是矩形的层压平板,两个相对的侧面被简单地支撑,另外两个自由的侧面。在支架的轴向压缩下,板变形为受力的浅壳。相对低频脉冲串内的高频电谐波信号被施加到压电层。根据轴向压缩和预挠度,电输入的频率和大小,可调式执行器在大范围振动中表现出频率/模式控制的高力,并产生剧烈的位移跳跃。提供了单自由度模型和简化的一维模型。触头可将电能有效地转换为机械能。

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