执行机构
磁滞
控制理论(社会学)
MATLAB语言
电压
蠕动
线性模型
打滑(空气动力学)
线性
计算机科学
控制工程
工程类
电子工程
材料科学
物理
人工智能
控制(管理)
量子力学
机器学习
航空航天工程
电气工程
复合材料
操作系统
作者
Mario Quant,Hugo Elizalde,Antonio Cobos Flores,Ricardo Ramírez,Pedro Orta,Gangbing Song
标识
DOI:10.1088/0964-1726/18/12/125011
摘要
This paper presents a comprehensive model for piezoceramic actuators (PAs), which accounts for hysteresis, non-linear electric field and dynamic effects. The hysteresis model is based on the widely used general Maxwell slip model, while an enhanced electro-mechanical non-linear model replaces the linear constitutive equations commonly used. Further on, a linear second order model compensates the frequency response of the actuator. Each individual model is fully characterized from experimental data yielded by a specific PA, then incorporated into a comprehensive 'direct' model able to determine the output strain based on the applied input voltage, fully compensating the aforementioned effects, where the term 'direct' represents an electrical-to-mechanical operating path. The 'direct' model was implemented in a Matlab/Simulink environment and successfully validated via experimental results, exhibiting higher accuracy and simplicity than many published models. This simplicity would allow a straightforward inclusion of other behaviour such as creep, ageing, material non-linearity, etc, if such parameters are important for a particular application.
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