Preisach modeling of piezoceramic and shape memory alloy hysteresis
Preisach modeling of piezoceramic and shape memory alloy hysteresis
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DOI：
10.1109/cca.1995.555909
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发表时间：
1995-09
期刊：
影响因子：
--
通讯作者：
D. Hughes;John T. Wen
中科院分区：
文献类型：
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作者：
D. Hughes;John T. Wen
智能材料如压电陶瓷和形状记忆合金(SMA)表现出明显的滞后性，为了估计其对开环和闭环控制的影响，需要一个合适的模型。Preisach独立的磁滞模型是一个很有前途的候选模型，它的特征是同余小环和抹掉性质。给出了连接在柔性梁上的多片压电陶瓷致动器(由锆钛酸铅制成)的可比小回路和衰减振动试验数据，这些数据与Preisach模型的两个特性非常一致。命令参数是薄片横向电场，而测量参数是梁中感应的近似共位应变。还给出了连接在同一梁上的NiTiol SMA钢丝肌肉的等效数据。输入和输出参数分别为形状记忆合金电流和梁应变。次要的循环和抹杀证据没有压电陶瓷案件那么有力，但令人鼓舞。在所有的实验中，为了避免激起梁的挠性振动而产生准稳态响应，这会使分析变得复杂。
Smart materials such as piezoceramics and shape memory alloys (SMAs) exhibit significant hysteresis and in order to estimate the effect on open and closed loop control a suitable model is needed. One promising candidate is the Preisach independent domain hysteresis model that is characterized by the congruent minor loop and wiping out properties. Comparable minor loop and decaying oscillation test data for a multi-sheet piezoceramic actuator (made of lead zirconate titanate) attached to a flexible beam are presented and are seen to be very consistent with the two Preisach model properties. The commanded parameter is the sheet transverse electric field while the measured parameter is an approximately colocated strain induced in the beam. Equivalent data for a Nitinol SMA wire muscle, attached to the same beam, are also presented. The input and output parameters are the SMA current and a beam strain respectfully. The minor loop and wiping out evidence is less strong than that of the piezoceramic case, but encouraging. In all experiments the quasi-steady state responses were generated in order to avoid exciting beam flexible modes which would complicate the analysis.