This paper examines theoretically and experimentally the dynamic electromechanical response of multilayer piezoelectric laminates for fuel injectors at high temperatures. A phenomenological model of depolarization at high temperatures was used, and the temperature dependent piezoelectric coefficients were obtained. The high temperature electromechanical fields of the multilayer piezoelectric actuators under AC electric fields were then calculated by the finite element method. In addition, test data on the electric field induced strain at high temperatures, which verify the model, were presented.

中文翻译：

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多层压电层压板在交流电场下的高温机电响应，用于喷油器应用

本文在理论和实验上研究了高温下喷油器用多层压电层压板的动态机电响应。使用了高温去极化的现象学模型，并获得了随温度变化的压电系数。然后通过有限元方法计算了交流电作用下多层压电致动器的高温电场。此外，还提供了高温下电场感应应变的测试数据，这些数据验证了该模型。