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首页> 外文期刊>International journal of applied electromagnetics and mechanics >Modeling of rate-dependent hysteresis in piezoelectric actuators based on a modified Prandtl-Ishlinskii model
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Modeling of rate-dependent hysteresis in piezoelectric actuators based on a modified Prandtl-Ishlinskii model

机译：基于改进的Prandtl-Ishlinskii模型的压电执行器中与速率相关的磁滞建模

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摘要

Hysteresis behavior of piezoelectric actuators considerably degrades the precision positioning system's performance. Many hysteresis models are developed to describe rate-independent hysteresis, while few models are presented to characterize rate-dependent hysteresis. In this paper, a modified Prandtl-Ishlinskii model is developed to describe rate-dependent hysteresis in piezoelectric actuators. The modified model integrates input frequencies and quadratic polynomials. Meanwhile, the parameters of the developed model are identified easily by the experimental data using self-adaptive particle swarm optimization (SAPSO) and the least square method (LSM) through MATLAB offline. Compared with other models, this model simplifies the modeling of complicated rate-dependent hysteresis behaviors. The validity of this developed model is demonstrated by comparing simulation results with experimental data at different frequencies in the range of 0.5-100 Hz.
机译：压电致动器的磁滞性能会大大降低精密定位系统的性能。开发了许多磁滞模型来描述与速率无关的磁滞，而很少有模型可以描述与速率无关的磁滞。在本文中，改进的Prandtl-Ishlinskii模型被开发来描述压电致动器中的速率相关磁滞。修改后的模型集成了输入频率和二次多项式。同时，通过自适应粒子群优化（SAPSO）和最小二乘法（LSM）通过MATLAB离线通过实验数据轻松识别开发模型的参数。与其他模型相比，该模型简化了复杂的速率相关磁滞行为的建模。通过将仿真结果与实验数据在0.5-100 Hz范围内的不同频率下进行比较，证明了该开发模型的有效性。

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