Distributed Photostrictive Actuation and Opto-Piezothermoelasticity Applied to Vibration Control of Plates
Distributed Photostrictive Actuation and Opto-Piezothermoelasticity Applied to Vibration Control of Plates
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DOI：
10.1115/1.2893923
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发表时间：
1998-10
期刊：
影响因子：
--
通讯作者：
B. Liu;H. Tzou
中科院分区：
文献类型：
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作者：
B. Liu;H. Tzou
传统的硬连线传感器/致动器系统可能对强电磁场、串扰、电噪声等敏感。由高能光驱动的非接触式分布式光机电致动器不需要直接硬连线连接。这些光机电致动器可以在具有强磁和/或电干扰的恶劣和极端环境中工作。在本研究中，详细的光致伸缩，热释电，热弹性和光变形的2-D光机电光致伸缩驱动器进行了分析。提出了一种伺服控制系统，推导了其控制系统方程。将光机电作动器应用于矩形板的振动控制。实验标定的仿真结果表明，光机电作动器具有良好的振动控制效果，最高可控振动频率可达几百赫兹。
Conventional hard-wired sensor/actuator systems are likely sensitive to strong electromagnetic fields, cross-talks, electric noises, etc. Noncontact distributed opto-electromechanical actuators driven by high-energy lights do not require direct hardwire connections. These opto-electromechanical actuators can operate in hostile and extreme environments with strong magnetic and/or electric disturbances. In this study, detailed photostriction, pyroelectricity, thermoelasticity and photodeformation of 2-D opto-electromechanical photostrictive actuators are analyzed. A servo control system is proposed and its governing system equation is derived. The opto-electromechanical actuators are used in vibration control of a rectangular plate. Experimentally calibrated simulation results show that the opto-electromechanical actuators are effective in vibration control and the highest frequency of controllable vibration can achieve several hundred Hertz.