研究目的
To study the dynamic hysteresis modeling of piezoelectric actuators based on Bouc-Wen hysteresis model and analyze the effect of the hysteresis behavior on the output displacement.
研究成果
The dynamic modeling method based on Bouc-Wen hysteresis model is suitable for modeling piezoelectric actuators due to its simplicity with few parameters and its ability to describe a variety of complicated hysteresis loops. The simulation results prove the correctness of the modeling and the existence of the hysteresis behavior in the piezoelectric stack actuator.
研究不足
The study relies on simulation results based on parameters from a previous study. Further verification and improvements can be done by using different values of the piezoelectric actuator parameters and by building and testing the physical system.
1：Experimental Design and Method Selection:
The study uses the Bouc-Wen model to describe the hysteresis behavior of piezoelectric actuators. The model is modified to suit piezoelectric actuators by setting parameters A = 1 and n = 1 to achieve smoother hysteresis loops.
2：Sample Selection and Data Sources:
The study simulates the behavior of a moving stage driven by a piezoelectric actuator under triangular actuating voltages with frequencies of 1 Hz and amplitudes of 80 V and 90 V.
3：List of Experimental Equipment and Materials:
The simulation uses parameters from a previous study, including mass (m), damper coefficient (b), stiffness factor (k), and piezoelectric material constant (d).
4：Experimental Procedures and Operational Workflow:
The input voltage is applied to the piezoelectric actuator, and the output displacement is measured to observe the hysteresis phenomenon.
5：Data Analysis Methods:
The relationship between input voltage and output displacement is analyzed to validate the Bouc-Wen model's correctness in describing the hysteresis behavior.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
