TY - JOUR
T1 - Rhombic micro-displacement amplifier for piezoelectric actuator and its linear and hybrid model
AU - Chen, Jinglong
AU - Zhang, Chunlin
AU - Xu, Minglong
AU - Zi, Yanyang
AU - Zhang, Xinong
PY - 2015/1
Y1 - 2015/1
N2 - This paper proposes rhombic micro-displacement amplifier (RMDA) for piezoelectric actuator (PA). First, the geometric amplification relations are analyzed and linear model is built to analyze the mechanical and electrical properties of this amplifier. Next, the accurate modeling method of amplifier is studied for important application of precise servo control. The classical Preisach model (CPM) is generally implemented using a numerical technique based on the first-order reversal curves (FORCs). The accuracy of CPM mainly depends on the number of FORCs. However, it is generally difficult to achieve enough number of FORCs in practice. So, Support Vector Machine (SVM) is employed in the work to circumvent the deficiency of the CPM. Then the hybrid model, which is based on discrete CPM and SVM is developed to account for hysteresis and dynamic effects. Finally, experimental validation is carried out. The analyzed result shows that this amplifier with the hybrid model is suitable for control application.
AB - This paper proposes rhombic micro-displacement amplifier (RMDA) for piezoelectric actuator (PA). First, the geometric amplification relations are analyzed and linear model is built to analyze the mechanical and electrical properties of this amplifier. Next, the accurate modeling method of amplifier is studied for important application of precise servo control. The classical Preisach model (CPM) is generally implemented using a numerical technique based on the first-order reversal curves (FORCs). The accuracy of CPM mainly depends on the number of FORCs. However, it is generally difficult to achieve enough number of FORCs in practice. So, Support Vector Machine (SVM) is employed in the work to circumvent the deficiency of the CPM. Then the hybrid model, which is based on discrete CPM and SVM is developed to account for hysteresis and dynamic effects. Finally, experimental validation is carried out. The analyzed result shows that this amplifier with the hybrid model is suitable for control application.
KW - Classical Preisach model
KW - Hybrid model
KW - Rhombic micro-displacement amplifier
KW - Support vector machine
UR - https://www.scopus.com/pages/publications/84905739705
U2 - 10.1016/j.ymssp.2014.05.047
DO - 10.1016/j.ymssp.2014.05.047
M3 - 文章
AN - SCOPUS:84905739705
SN - 0888-3270
VL - 50-51
SP - 580
EP - 593
JO - Mechanical Systems and Signal Processing
JF - Mechanical Systems and Signal Processing
ER -